技术领域Technical field
本申请涉及电力电子技术领域，特别是涉及一种基于光耦自动控制的传感器宽范围取能调理方法与电路。The present application relates to the field of power electronics technology, and in particular to a sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control.
背景技术Background technique
为了实现长期稳定的供能，往往采用磁场取能、电场取能，振动取能等空间能量收集方法，其中，磁场取能技术基于电磁感应定律，利用线圈接收磁场梯度的变化并转化为电能，是一种应用较为广泛的空间能量收集方法。In order to achieve long-term stable energy supply, space energy collection methods such as magnetic field energy harvesting, electric field energy harvesting, and vibration energy harvesting are often used. Among them, magnetic field energy harvesting technology is based on the law of electromagnetic induction, using coils to receive changes in magnetic field gradients and convert them into electrical energy. It is a widely used space energy collection method.
然而，对于磁场取能技术而言，一次侧电流对其输出电压影响较大，而且输电线中母线电流十分不稳定，存在电路安全性不高以及无法保障电能正常供应的问题。However, for magnetic field energy harvesting technology, the primary side current has a greater impact on its output voltage, and the bus current in the transmission line is very unstable. There are problems such as low circuit safety and the inability to guarantee the normal supply of electric energy.
发明内容Contents of the invention
基于此，有必要针对上述技术问题，提供一种能够提高电路安全性和保障电能正常供应的基于光耦自动控制的传感器宽范围取能调理方法与电路。Based on this, it is necessary to address the above technical problems and provide a sensor wide-range energy adjustment method and circuit based on optocoupler automatic control that can improve circuit safety and ensure normal supply of electric energy.
第一方面，本申请提供了一种基于光耦自动控制的传感器宽范围取能调理电路，包括：In the first aspect, this application provides a sensor wide-range energy conditioning circuit based on optocoupler automatic control, including:
供能回路，供能回路的一端连接第一取能线圈，供能回路的另一端连接负载，供能回路给负载进行供电；An energy supply circuit, one end of the energy supply circuit is connected to the first energy coil, the other end of the energy supply circuit is connected to the load, and the energy supply circuit supplies power to the load;
驱动回路，驱动回路的一端连接第二取能线圈，驱动回路的另一端连接供能回路的一端，驱动回路输出驱动电压至供能回路，驱动回路用于指示供能回路进入相应的工作状态；其中，第一取能线圈的线圈匝数大于第二取能线圈的线圈匝数；A driving circuit, one end of the driving circuit is connected to the second energy-taking coil, the other end of the driving circuit is connected to one end of the energy supply circuit, the driving circuit outputs a driving voltage to the energy supply circuit, and the driving circuit is used to instruct the energy supply circuit to enter the corresponding working state; Wherein, the number of coil turns of the first energy-taking coil is greater than the number of coil turns of the second energy-taking coil;
控制回路，控制回路的一端连接在供能回路和驱动回路之间，控制回路的另一端连接供能回路的另一端，控制回路基于供能回路的输出电压对驱动电压进行调整。A control loop, one end of the control loop is connected between the energy supply loop and the drive loop, the other end of the control loop is connected to the other end of the energy supply loop, and the control loop adjusts the drive voltage based on the output voltage of the energy supply loop.
在其中一个实施例中，驱动回路设置有第一触点、第二触点、第三触点和第四触点；驱动回路包括整流滤波单元和第一稳压单元；In one embodiment, the driving circuit is provided with a first contact, a second contact, a third contact and a fourth contact; the driving circuit includes a rectification and filtering unit and a first voltage stabilizing unit;
整流滤波单元通过第一触点连接第二取能线圈的一端，整流滤波单元通过第二触点连接第二取能线圈的另一端，整流滤波单元的另一端连接第一稳压单元的一端；第一稳压单元分别通过第三触点和第四触点连接供能回路的一端；整流滤波单元用于将获取到第二取能线圈输出的感应电动势进行整流滤波，并传输至第一稳压单元，第一稳压单元进行稳压并输出驱动电压至供能回路。The rectifying and filtering unit is connected to one end of the second energy-taking coil through a first contact, the rectifying and filtering unit is connected to the other end of the second energy-taking coil through a second contact, and the other end of the rectifying and filtering unit is connected to one end of the first voltage stabilizing unit; The first voltage stabilizing unit is connected to one end of the energy supply circuit through the third contact and the fourth contact respectively; the rectifying and filtering unit is used to rectify and filter the induced electromotive force output from the second energy-taking coil, and transmit it to the first stabilizing unit. The first voltage stabilizing unit performs voltage stabilization and outputs the driving voltage to the energy supply circuit.
在其中一个实施例中，整流滤波单元包括第一电阻、第一电容、第二电容、第三电容、第四电容、第一二极管、第二二极管、第三二极管、第四二极管和第五二极管；第一稳压单元包括第二电阻和第五电容；In one embodiment, the rectification and filtering unit includes a first resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first diode, a second diode, a third diode, four diodes and a fifth diode; the first voltage stabilizing unit includes a second resistor and a fifth capacitor;
第一电阻的一端连接第一触点，第一电阻的另一端分别连接第一电容的一端和第二电容的一端；第一电容的另一端分别连接第一二极管的负极和第二二极管的正极；第二电容的另一端分别连接第三二极管的正极和第四二极管的负极；One end of the first resistor is connected to the first contact, the other end of the first resistor is connected to one end of the first capacitor and one end of the second capacitor respectively; the other end of the first capacitor is connected to the cathode of the first diode and the second diode respectively. The anode of the diode; the other end of the second capacitor is connected to the anode of the third diode and the cathode of the fourth diode respectively;
第二触点分别连接第一二极管的正极和第三二极管的负极；第一二极管的负极连接第二二极管的正极，第二二极管的负极分别连接第二电阻的一端、第五电容的一端、第五电容的另一端、第五二极管的负极、第五二极管的正极、第三电容的一端、第四电容的一端、第四二极管的正极和第四触点；第三二极管的正极连接第四二极管的负极，第四二极管的正极分别连接第二电阻的一端、第五电容的一端、第五电容的另一端、第五二极管的负极、第五二极管的正极、第三电容的一端、第四电容的一端和第四触点；第三电容的一端分别连接第二电阻的一端、第五电容的一端、第五电容的另一端、第五二极管的负极、第五二极管的正极、第四电容的一端和第四触点，第三电容的另一端分别连接第四电容的另一端和第二触点；第四电容的一端分别连接第二电阻的一端、第五电容的一端、第五电容的另一端、第五二极管的负极、第五二极管的正极和第四触点，第四电容的另一端连接第二触点；The second contact is connected to the anode of the first diode and the cathode of the third diode respectively; the cathode of the first diode is connected to the anode of the second diode, and the cathode of the second diode is connected to the second resistor respectively. one end of the fifth capacitor, the other end of the fifth capacitor, the cathode of the fifth diode, the anode of the fifth diode, one end of the third capacitor, one end of the fourth capacitor, and the Anode and fourth contact; the anode of the third diode is connected to the cathode of the fourth diode, and the anode of the fourth diode is connected to one end of the second resistor, one end of the fifth capacitor, and the other end of the fifth capacitor respectively. , the cathode of the fifth diode, the anode of the fifth diode, one end of the third capacitor, one end of the fourth capacitor and the fourth contact; one end of the third capacitor is connected to one end of the second resistor and the fifth capacitor respectively. one end of the fifth capacitor, the other end of the fifth capacitor, the cathode of the fifth diode, the anode of the fifth diode, one end of the fourth capacitor and the fourth contact. The other end of the third capacitor is connected to the other end of the fourth capacitor respectively. one end and the second contact; one end of the fourth capacitor is respectively connected to one end of the second resistor, one end of the fifth capacitor, the other end of the fifth capacitor, the cathode of the fifth diode, the anode of the fifth diode and the Four contacts, the other end of the fourth capacitor is connected to the second contact;
第五二极管的负极分别连接第二电阻的一端和第五电容的一端，第五二极管的正极分别连接第五电容的另一端和第四触点；第五电容的一端连接第二电阻的一端，第五电容的另一端连接第四触点；第二电阻的另一端连接第三触点。The cathode of the fifth diode is connected to one end of the second resistor and one end of the fifth capacitor respectively, the anode of the fifth diode is connected to the other end of the fifth capacitor and the fourth contact respectively; one end of the fifth capacitor is connected to the second One end of the resistor and the other end of the fifth capacitor are connected to the fourth contact; the other end of the second resistor is connected to the third contact.
在其中一个实施例中，驱动回路设置有第三触点和第四触点；供能回路包括依次连接的开关单元、整流单元、储能单元和第二稳压单元；其中，开关单元设置有第五触点，整流单元设置有第六触点；In one embodiment, the driving circuit is provided with a third contact and a fourth contact; the energy supply circuit includes a switching unit, a rectifying unit, an energy storage unit and a second voltage stabilizing unit connected in sequence; wherein, the switching unit is provided with The fifth contact point, the rectifier unit is provided with a sixth contact point;
开关单元通过第三触点和第四触点与驱动回路相连接，开关单元通过第五触点与第一取能线圈的一端相连接，整流单元通过第六触点与第一取能线圈的另一端相连接，储能单元的输出端分别连接稳压单元和控制回路的另一端，储能单元的输出端用于接地，稳压单元连接负载；开关单元和整流单元用于将获取到第一取能线圈输出的感应电动势进行整流，储能单元用于储能缓冲，第二稳压单元用于稳压。The switch unit is connected to the drive circuit through the third contact and the fourth contact, the switch unit is connected to one end of the first energy-taking coil through the fifth contact, and the rectifying unit is connected to one end of the first energy-taking coil through the sixth contact. The other end is connected, the output end of the energy storage unit is connected to the voltage stabilizing unit and the other end of the control loop respectively, the output end of the energy storage unit is used for grounding, the voltage stabilizing unit is connected to the load; the switching unit and the rectifier unit are used to obtain the third The induced electromotive force output by an energy-taking coil is rectified, the energy storage unit is used for energy storage buffering, and the second voltage stabilizing unit is used for voltage stabilization.
在其中一个实施例中，开关单元包括保护电路和开关电路；In one embodiment, the switching unit includes a protection circuit and a switching circuit;
开关电路的一端通过第三触点和第四触点与驱动回路相连接，开关电路的另一端连接保护电路，开关电路用于基于驱动电压切换工作状态，保护电路用于保护开关电路。One end of the switch circuit is connected to the drive circuit through the third contact and the fourth contact, and the other end of the switch circuit is connected to the protection circuit. The switch circuit is used to switch the working state based on the drive voltage, and the protection circuit is used to protect the switch circuit.
在其中一个实施例中，开关电路包括第一MOS管和第二MOS管；保护电路包括第三电阻、第六电容和双向TVS二极管；In one embodiment, the switching circuit includes a first MOS transistor and a second MOS transistor; the protection circuit includes a third resistor, a sixth capacitor and a bidirectional TVS diode;
第一MOS管的栅极分别连接第三触点和第二MOS管的栅极，第一MOS管的源极分别连接第二MOS管的源极和第四触点，第一MOS管的漏极分别连接双向TVS二极管的一端和第三电阻的一端，第二MOS管的漏极分别连接双向TVS二极管的另一端和第六电容的一端；双向TVS二极管的一端连接第三电阻的一端，双向TVS二极管的另一端连接第六电容的一端；第三电阻的另一端连接第六电容的另一端。The gate of the first MOS tube is connected to the third contact and the gate of the second MOS tube respectively. The source of the first MOS tube is connected to the source of the second MOS tube and the fourth contact respectively. The drain of the first MOS tube The two poles are respectively connected to one end of the bidirectional TVS diode and one end of the third resistor, the drain of the second MOS tube is respectively connected to the other end of the bidirectional TVS diode and one end of the sixth capacitor; one end of the bidirectional TVS diode is connected to one end of the third resistor, and the bidirectional The other end of the TVS diode is connected to one end of the sixth capacitor; the other end of the third resistor is connected to the other end of the sixth capacitor.
在其中一个实施例中，驱动回路设置有第三触点和第四触点；控制回路包括光耦控制单元和电压比较单元；In one embodiment, the drive circuit is provided with a third contact and a fourth contact; the control circuit includes an optocoupler control unit and a voltage comparison unit;
电压比较单元的一端连接光耦控制单元的另一端，电压比较单元的另一端连接供能回路的另一端，电压比较单元用于比较阈值电压和输出电压，并将比较结果输出至光耦控制单元；One end of the voltage comparison unit is connected to the other end of the optocoupler control unit, and the other end of the voltage comparison unit is connected to the other end of the energy supply loop. The voltage comparison unit is used to compare the threshold voltage and the output voltage, and output the comparison result to the optocoupler control unit. ;
光耦控制单元的一端连接在供能回路和驱动回路之间，光耦控制单元的另一端连接电压比较单元的一端，光耦控制单元基于比较结果对驱动电压进行调整。One end of the optocoupler control unit is connected between the energy supply circuit and the driving circuit, and the other end of the optocoupler control unit is connected to one end of the voltage comparison unit. The optocoupler control unit adjusts the driving voltage based on the comparison result.
在其中一个实施例中，光耦控制单元为光耦继电器；电压比较单元包括运算放大器、第四电阻、第五电阻、第六电阻、第七电阻和比较电源；In one embodiment, the optocoupler control unit is an optocoupler relay; the voltage comparison unit includes an operational amplifier, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor and a comparison power supply;
光耦继电器的受光器的输入端分别连接第四触点和供能回路，光耦继电器的受光器的输出端分别连接第三触点和供能回路，光耦继电器的发光二极管的负极用于接地，光耦继电器的发光二极管的正极分别连接第四电阻的一端和第七电阻的一端；The input end of the photoreceiver of the optocoupler relay is respectively connected to the fourth contact and the energy supply loop. The output end of the photoreceptor of the optocoupler relay is respectively connected to the third contact and the energy supply loop. The cathode of the light emitting diode of the optocoupler relay is used for Ground, the anode of the light-emitting diode of the optocoupler relay is connected to one end of the fourth resistor and one end of the seventh resistor respectively;
第四电阻的另一端分别连接第五电阻的一端和运算放大器的正相输入端，第七电阻的另一端连接运算放大器的输出端，运算放大器的正相输入端连接第五电阻的一端，运算放大器的反相输入端连接第六电阻的一端，第五电阻的另一端连接供能回路的另一端，第六电阻的另一端连接比较电源的正极，比较电源的负极用于接地。The other end of the fourth resistor is connected to one end of the fifth resistor and the non-inverting input end of the operational amplifier respectively. The other end of the seventh resistor is connected to the output end of the operational amplifier. The positive input end of the operational amplifier is connected to one end of the fifth resistor. The operational amplifier The inverting input end of the amplifier is connected to one end of the sixth resistor, the other end of the fifth resistor is connected to the other end of the energy supply circuit, the other end of the sixth resistor is connected to the positive pole of the comparison power supply, and the negative pole of the comparison power supply is used for grounding.
第二方面，本申请还提供了一种基于光耦自动控制的传感器宽范围取能调理方法，方法应用于上述的基于光耦自动控制的传感器宽范围取能调理电路，方法包括：In a second aspect, this application also provides a sensor wide-range energy-taking conditioning method based on optocoupler automatic control. The method is applied to the above-mentioned sensor wide-range energy-taking conditioning circuit based on optocoupler automatic control. The method includes:
获取供能回路的输出电压；Obtain the output voltage of the energy supply circuit;
基于输出电压对驱动回路输出的驱动电压进行调整，驱动电压用于指示供能回路进入相应的工作状态。The driving voltage output by the driving circuit is adjusted based on the output voltage, and the driving voltage is used to indicate that the energy supply circuit enters a corresponding working state.
第三方面，本申请还提供了一种电源转换电路，包括第一取能线圈、第二取能线圈、负载和上述的基于光耦自动控制的传感器宽范围取能调理电路；In a third aspect, the application also provides a power conversion circuit, including a first energy-taking coil, a second energy-taking coil, a load, and the above-mentioned sensor wide-range energy-taking conditioning circuit based on optocoupler automatic control;
基于光耦自动控制的传感器宽范围取能调理电路分别连接第一取能线圈、第二取能线圈和负载。The sensor's wide-range energy-taking conditioning circuit based on optocoupler automatic control is connected to the first energy-taking coil, the second energy-taking coil and the load respectively.
上述基于光耦自动控制的传感器宽范围取能调理方法与电路，供能回路通过连接第一取能线圈和负载，以给负载进行供电，驱动回路通过连接第二取能线圈和供能回路，驱动回路输出驱动电压至供能回路，以指示供能回路进入相应的工作状态，控制回路通过连接供能回路和驱动回路，基于供能回路的输出电压对驱动电压进行调整；本申请通过设置控制回路基于供能回路的输出电压对驱动电压进行调整，以此自动适应负荷用能需求，保障电能正常供应的同时提高了电路的安全性。In the above-mentioned sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control, the energy supply loop is connected to the first energy-taking coil and the load to provide power to the load, and the drive circuit is connected to the second energy-taking coil and the energy supply circuit. The driving circuit outputs the driving voltage to the energy supply circuit to indicate that the energy supply circuit enters the corresponding working state. The control circuit adjusts the driving voltage based on the output voltage of the energy supply circuit by connecting the energy supply circuit and the driving circuit. This application controls by setting The circuit adjusts the driving voltage based on the output voltage of the energy supply circuit, thereby automatically adapting to the energy demand of the load, ensuring the normal supply of electric energy and improving the safety of the circuit.
附图说明Description of the drawings
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the technical solutions in the embodiments of the present application or the traditional technology, the drawings needed to be used in the description of the embodiments or the traditional technology will be briefly introduced below. Obviously, the drawings in the following description are only for the purpose of explaining the embodiments or the technical solutions of the traditional technology. For some embodiments of the application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.
图1为一个实施例中传统磁场取能的电路结构图；Figure 1 is a circuit structure diagram of a traditional magnetic field energy harvesting in one embodiment;
图2为一个实施例中基于光耦自动控制的传感器宽范围取能调理电路的结构框图；Figure 2 is a structural block diagram of a sensor wide-range energy conditioning circuit based on optocoupler automatic control in one embodiment;
图3为另一个实施例中基于光耦自动控制的传感器宽范围取能调理电路的结构框图；Figure 3 is a structural block diagram of a sensor wide-range energy conditioning circuit based on optocoupler automatic control in another embodiment;
图4为一个实施例中驱动回路的电路示意图；Figure 4 is a schematic circuit diagram of a driving circuit in an embodiment;
图5为一个实施例中开关单元的结构框图；Figure 5 is a structural block diagram of a switch unit in an embodiment;
图6为一个实施例中开关单元的电路示意图；Figure 6 is a schematic circuit diagram of a switch unit in an embodiment;
图7为一个实施例中供能回路的电路示意图；Figure 7 is a schematic circuit diagram of an energy supply circuit in an embodiment;
图8为一个实施例中控制回路和开关单元的电路示意图；Figure 8 is a circuit schematic diagram of the control loop and switch unit in one embodiment;
图9为一个实施例中基于光耦自动控制的传感器宽范围取能调理电路的电路示意图；Figure 9 is a circuit schematic diagram of a sensor wide-range energy conditioning circuit based on optocoupler automatic control in one embodiment;
图10为一个实施例中基于光耦自动控制的传感器宽范围取能调理方法的流程示意图。FIG. 10 is a schematic flowchart of a sensor wide-range energy adjustment method based on optocoupler automatic control in one embodiment.
具体实施方式Detailed ways
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使本申请的公开内容更加透彻全面。In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing specific embodiments only and is not intended to limit the application.
可以理解，本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件，但这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。举例来说，在不脱离本申请的范围的情况下，可以将第一电阻称为第二电阻，且类似地，可将第二电阻称为第一电阻。第一电阻和第二电阻两者都是电阻，但其不是同一电阻。It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first resistor may be referred to as a second resistor, and similarly, the second resistor may be referred to as a first resistor, without departing from the scope of the present application. The first resistor and the second resistor are both resistors, but they are not the same resistor.
可以理解，以下实施例中的“连接”，如果被连接的电路、模块、单元等相互之间具有电信号或数据的传递，则应理解为“电连接”、“通信连接”等。It can be understood that "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have the transmission of electrical signals or data between each other.
在此使用时，单数形式的“一”、“一个”和“所述/该”也可以包括复数形式，除非上下文清楚指出另外的方式。还应当理解的是，术语“包括/包含”或“具有”等指定所陈述的特征、整体、步骤、操作、组件、部分或它们的组合的存在，但是不排除存在或添加一个或更多个其他特征、整体、步骤、操作、组件、部分或它们的组合的可能性。同时，在本说明书中使用的术语“和/或”包括相关所列项目的任何及所有组合。As used herein, the singular forms "a," "an," and "the" may include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the terms "comprising" or "having" and the like specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more Possibility of other features, integers, steps, operations, components, parts or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
近年来，随着电力系统不断朝着智能化、信息化、自动化方向发展，逐渐形成了透明电网的概念。透明电网指的是将信息技术、计算机技术、数据通信技术、传感器技术、电子控制技术、自动控制理论、运筹学、人工智能、互联网等有效的综合运用于电力系统。透明电网是智能电网的高级阶段，而微型智能传感器是透明电网的感知层和神经末梢，微型智能传感器网络将自下而上对电网进行革命，改变传统电力系统运行、管理与市场交易方式。微型智能传感器一个显著的技术特点就是“自取能自供电”，不与一次系统连接，传感器可以实现长期稳定的供能。为了实现自取能，自供电，微型智能传感器往往采用磁场取能、电场取能，振动取能等空间能量收集方法。In recent years, as the power system continues to develop toward intelligence, informatization, and automation, the concept of a transparent power grid has gradually formed. Transparent power grid refers to the effective and comprehensive application of information technology, computer technology, data communication technology, sensor technology, electronic control technology, automatic control theory, operations research, artificial intelligence, Internet, etc. to the power system. Transparent grid is an advanced stage of smart grid, and micro-intelligent sensors are the perception layer and nerve endings of transparent grid. Micro-intelligent sensor network will revolutionize the grid from bottom to top and change the traditional power system operation, management and market transaction methods. A notable technical feature of miniature smart sensors is that they "take their own energy and supply power". Without being connected to a primary system, the sensor can achieve long-term and stable energy supply. In order to achieve self-energy and self-power supply, miniature smart sensors often adopt space energy collection methods such as magnetic field energy harvesting, electric field energy harvesting, and vibration energy harvesting.
其中，磁场取能技术基于电磁感应定律，利用线圈接收磁场梯度的变化并转化为电能，是一种应用较为广泛的空间能量收集方法。磁场能量在空间中广泛分布，特别是在电力系统中，架空输电线周围存在大量工频电磁场。基于空间电磁能收集的自供电技术，相比光能、振动能等收集方式，在能量源获取、可靠性和稳定性等方面更有优势，可为泛在分布的微型智能传感器提供稳定可靠的能量供应。Among them, magnetic field energy harvesting technology is based on the law of electromagnetic induction, using coils to receive changes in magnetic field gradients and convert them into electrical energy. It is a widely used space energy collection method. Magnetic field energy is widely distributed in space, especially in power systems, where there are a large number of power frequency electromagnetic fields around overhead transmission lines. Self-powering technology based on space electromagnetic energy collection has more advantages in energy source acquisition, reliability and stability than light energy, vibration energy and other collection methods, and can provide stable and reliable power for ubiquitous distributed micro smart sensors. energy supply.
然而，对于磁场取能技术而言，由于高压电线周围存在交变磁场，若高压输电线路中的电流发生变化，母线周围磁场也会发生变化，进而通过感应取能线圈产生感应电压，感应电压经过整流、滤波、稳压等取能电路进行变换处理，最终实现为供电设备在线供电；进一步地，传统磁场取能的基本原理如图1所示，感应取能线圈通过S1触点和S2触点连接至取能电源模块，感应电压(Vin1/Vin2)经过整流滤波、DC-DC变换器以及隔离稳压后(+Vo/-Vo)，输出至储能设备进行存储，以实现为供电设备在线供电；该种供能方式，由于解决了高压侧电子设备的绝缘隔离问题，并且体积小、成本低，因此使用范围较广泛。但是，一次侧电流对其输出电压影响较大，而且输电线中母线电流十分不稳定，受气象环境影响较大，如雷击故障等，电流幅值在几安与数十千安之间波动。However, for magnetic field energy harvesting technology, since there is an alternating magnetic field around high-voltage wires, if the current in the high-voltage transmission line changes, the magnetic field around the bus will also change, and then an induced voltage will be generated through the induction energy harvesting coil. Energy-taking circuits such as rectification, filtering, and voltage stabilization perform transformation processing, and finally realize online power supply for power supply equipment; further, the basic principle of traditional magnetic field energy-taking is shown in Figure 1. The induction energy-taking coil passes through the S1 contact and S2 contact Connected to the energy power supply module, the induced voltage (Vin1/Vin2) is output to the energy storage device for storage after rectification, filtering, DC-DC converter and isolation voltage stabilization (+Vo/-Vo) to achieve online power supply equipment Power supply; This energy supply method solves the insulation isolation problem of high-voltage side electronic equipment, and is small in size and low in cost, so it is widely used. However, the primary side current has a great influence on its output voltage, and the bus current in the transmission line is very unstable and is greatly affected by the meteorological environment, such as lightning strikes, etc. The current amplitude fluctuates between a few amperes and tens of thousands of amperes.
因此，目前电流感应取能供电方式主要面临以下两个问题：一、在母线小电流状态下，如何保证电源的正常供应；二、在母线大电流或者短路故障大电流状态时，如何实现电源的保护。Therefore, the current current induction energy supply method mainly faces the following two problems: 1. How to ensure the normal supply of power when the bus bar has a small current state; 2. How to realize the power supply when the bus bar has a large current or a short-circuit fault current state. Protect.
在一个实施例中，如图2所示，提供了一种基于光耦自动控制的传感器宽范围取能调理电路，包括：In one embodiment, as shown in Figure 2, a sensor wide-range energy conditioning circuit based on optocoupler automatic control is provided, including:
供能回路202，供能回路202的一端连接第一取能线圈，供能回路202的另一端连接负载，供能回路202给负载进行供电；Energy supply loop 202, one end of the energy supply loop 202 is connected to the first energy coil, the other end of the energy supply loop 202 is connected to the load, and the energy supply loop 202 supplies power to the load;
驱动回路204，驱动回路204的一端连接第二取能线圈，驱动回路204的另一端连接供能回路202的一端，驱动回路204输出驱动电压至供能回路202，驱动回路204用于指示供能回路202进入相应的工作状态；其中，第一取能线圈的线圈匝数大于第二取能线圈的线圈匝数；Driving circuit 204. One end of the driving circuit 204 is connected to the second energy coil, and the other end of the driving circuit 204 is connected to one end of the energy supply circuit 202. The driving circuit 204 outputs a driving voltage to the energy supply circuit 202. The driving circuit 204 is used to indicate energy supply. The loop 202 enters the corresponding working state; wherein, the number of coil turns of the first energy-taking coil is greater than the number of coil turns of the second energy-taking coil;
控制回路206，控制回路206的一端连接在供能回路202和驱动回路204之间，控制回路206的另一端连接供能回路202的另一端，控制回路206基于供能回路202的输出电压对驱动电压进行调整。Control loop 206. One end of the control loop 206 is connected between the energy supply loop 202 and the drive loop 204. The other end of the control loop 206 is connected to the other end of the energy supply loop 202. The control loop 206 controls the drive based on the output voltage of the energy supply loop 202. voltage to adjust.
其中，供能回路的工作状态可以包括正常供电状态和停止供电状态，进一步地，本申请实施例中的供能回路的工作状态还可以指其他的工作状态，在本申请实施例中不做限定。Among them, the working state of the energy supply circuit may include a normal power supply state and a power supply stop state. Furthermore, the working state of the energy supply circuit in the embodiment of the present application may also refer to other working states, which are not limited in the embodiment of the present application. .
其中，负载可以指需要消耗电能的器件，本申请实施例中以微型智能传感器为例进行说明。The load may refer to a device that needs to consume electric energy. In the embodiment of this application, a miniature smart sensor is used as an example for explanation.
具体地，如图2所示，输电线电流从磁芯中央穿过，绕制在磁芯上的第一取能线圈和第二取能线圈将产生感应电压，供能回路可以通过对第一取能线圈产生的感应电压进行相应的处理，以给负载进行供电；驱动回路可以通过对第二取能线圈产生的感应电动势(V1)的整流，输出驱动电压，并将驱动电压输出至供能回路，以指示供能回路进入相应的工作状态；控制回路可以基于供能回路的输出电压，对输电线电流状况进行判断，以此对驱动电压进行调整，提高电路安全性的同时保障电能正常供应。Specifically, as shown in Figure 2, the transmission line current passes through the center of the magnetic core, and the first energy-taking coil and the second energy-taking coil wound on the magnetic core will generate an induced voltage. The energy supply circuit can pass through the first energy-taking coil. The induced voltage generated by the energy-taking coil is processed accordingly to supply power to the load; the driving circuit can output the driving voltage by rectifying the induced electromotive force (V1) generated by the second energy-taking coil, and output the driving voltage to the energy supply loop to indicate that the energy supply loop has entered the corresponding working state; the control loop can judge the current status of the transmission line based on the output voltage of the energy supply loop, thereby adjusting the driving voltage to improve circuit safety while ensuring the normal supply of electric energy. .
需要说明的是，第一取能线圈的主要作用是为了输出功率，因此在绕制闸数上，第二取能线圈的主要作用是为了输出比较电压，第一取能线圈的线圈匝数(N1)大于第二取能线圈的线圈匝数(N2)。It should be noted that the main function of the first energy-taking coil is to output power. Therefore, in terms of the number of winding gates, the main function of the second energy-taking coil is to output a comparison voltage. The number of turns of the first energy-taking coil ( N1) is greater than the number of coil turns (N2) of the second energy-taking coil.
示例性地，取能磁芯套设在输电导线上，输电线电流从磁芯中央穿过。由于输电线的电流以工频50Hz的频率发生变化，因此，在磁芯中由输电线电流激发的磁动势也将以50Hz的频率发生变化。根据法拉第电磁场感应定律(因磁通量变化，产生感应电动势)，绕制在磁芯上的第一取能线圈和第二取能线圈将产生感应电压。其中，第一取能线圈在磁环上绕制了N1闸线圈，第二取能线圈在磁环上绕制了N2闸线圈。第一取能线圈与供能回路连接，并为供能回路提供感应电动势，通过相应处理，将电能输送到负载(微型智能传感器)中去；驱动回路通过对第二取能线圈产生的感应电动势V1进行处理，输出一个直流电压(驱动电压)至供能回路；供能回路的输出电压作为反馈控制的变量，输入到控制回路中去，控制回路通过比较判断对驱动电压进行调整，提高电路安全性的同时保障电能正常供应，保证了对负载的及时，稳定供电。For example, the energy-taking magnetic core is placed on the power transmission wire, and the power transmission line current passes through the center of the magnetic core. Since the current of the transmission line changes at a frequency of 50Hz, the magnetomotive force excited by the current in the magnetic core will also change at a frequency of 50Hz. According to Faraday's law of electromagnetic field induction (induced electromotive force is generated due to changes in magnetic flux), the first energy-extracting coil and the second energy-extracting coil wound on the magnetic core will generate an induced voltage. Among them, the first energy-taking coil has an N1 gate coil wound on the magnetic ring, and the second energy-taking coil has an N2 gate coil wound on the magnetic ring. The first energy-taking coil is connected to the energy supply circuit and provides induced electromotive force to the energy supply circuit. Through corresponding processing, the electric energy is transported to the load (miniature intelligent sensor); the driving circuit passes the induced electromotive force generated by the second energy-taking coil. V1 processes and outputs a DC voltage (driving voltage) to the energy supply circuit; the output voltage of the energy supply circuit is used as a feedback control variable and is input into the control loop. The control loop adjusts the driving voltage through comparison and judgment to improve circuit safety. While ensuring the normal supply of electric energy, it ensures timely and stable power supply to the load.
上述取能调理电路中，供能回路通过连接第一取能线圈和负载，以给负载进行供电，驱动回路通过连接第二取能线圈和供能回路，驱动回路输出驱动电压至供能回路，以指示供能回路进入相应的工作状态，控制回路通过连接供能回路和驱动回路，基于供能回路的输出电压对驱动电压进行调整，提高电路安全性的同时保障电能正常供应，保证了对负载的及时，稳定供电。In the above-mentioned energy-taking conditioning circuit, the energy supply circuit supplies power to the load by connecting the first energy-taking coil and the load, and the driving circuit connects the second energy-taking coil and the energy supply circuit, and the driving circuit outputs the driving voltage to the energy supply circuit. To instruct the energy supply circuit to enter the corresponding working state, the control circuit adjusts the drive voltage based on the output voltage of the energy supply circuit by connecting the energy supply circuit and the drive circuit, thereby improving the safety of the circuit while ensuring the normal supply of electric energy and ensuring the load. timely and stable power supply.
在其中一个实施例中，如图3所示，驱动回路设置有第一触点K1、第二触点K2、第三触点K3和第四触点K4；驱动回路包括整流滤波单元和第一稳压单元；In one embodiment, as shown in Figure 3, the driving circuit is provided with a first contact point K1, a second contact point K2, a third contact point K3 and a fourth contact point K4; the driving circuit includes a rectification filtering unit and a first contact point K4. voltage stabilizing unit;
整流滤波单元通过第一触点K1连接第二取能线圈的一端，整流滤波单元通过第二触点K2连接第二取能线圈的另一端，整流滤波单元的另一端连接第一稳压单元的一端；第一稳压单元分别通过第三触点K3和第四触点K4连接供能回路的一端；整流滤波单元用于将获取到第二取能线圈输出的感应电动势进行整流滤波，并传输至第一稳压单元，第一稳压单元进行稳压并输出驱动电压至供能回路。The rectifying and filtering unit is connected to one end of the second energy-taking coil through the first contact K1, the rectifying and filtering unit is connected to the other end of the second energy-taking coil through the second contact K2, and the other end of the rectifying and filtering unit is connected to the first voltage stabilizing unit. One end; the first voltage stabilizing unit is connected to one end of the energy supply circuit through the third contact K3 and the fourth contact K4 respectively; the rectification and filtering unit is used to rectify and filter the induced electromotive force output from the second energy coil, and transmit it to the first voltage stabilizing unit, which performs voltage stabilization and outputs the driving voltage to the energy supply circuit.
具体地，第二取能线圈产生的感应电动势V1经过整流滤波单元进行整流滤波，经过第一稳压单元进行稳压，最后输出驱动电压至供能回路，以指示供能回路进入相应的工作状态，需要说明的是，驱动电压可以为直流电压。Specifically, the induced electromotive force V1 generated by the second energy-taking coil is rectified and filtered by the rectification and filtering unit, stabilized by the first voltage stabilizing unit, and finally the driving voltage is output to the energy supply circuit to indicate that the energy supply circuit enters the corresponding working state. , it should be noted that the driving voltage can be a DC voltage.
示例性地，第一稳压单元可以通过第三触点K3输出大小为VG的电压，第一稳压单元还可以通过第四触点K4输出大小为VS的电压，进一步地，驱动电压的幅值可以为VG-VS(VG-VS>0)。For example, the first voltage stabilizing unit can output a voltage of VG through the third contact K3, and the first voltage stabilizing unit can also output a voltage of VS through the fourth contact K4. Further, the amplitude of the driving voltage The value can be VG-VS (VG-VS>0).
本申请实施例中，整流滤波单元和第一稳压单元通过对第二取能线圈产生的感应电动势进行整流滤波、稳压，输出驱动电压至供能电路，指示供能电路进入相应的工作状态，保障电能的正常供应。In the embodiment of the present application, the rectifier filter unit and the first voltage stabilizing unit rectify, filter and stabilize the induced electromotive force generated by the second energy-taking coil, and output the driving voltage to the energy supply circuit to instruct the energy supply circuit to enter the corresponding working state. , to ensure the normal supply of electric energy.
在其中一个实施例中，如图4所示，整流滤波单元包括第一电阻R1、第一电容C1、第二电容C2、第三电容C3、第四电容C4、第一二极管D1、第二二极管D2、第三二极管D3、第四二极管D4和第五二极管D5；第一稳压单元包括第二电阻R2和第五电容C5；In one embodiment, as shown in Figure 4, the rectification and filtering unit includes a first resistor R1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a first diode D1, a The second diode D2, the third diode D3, the fourth diode D4 and the fifth diode D5; the first voltage stabilizing unit includes a second resistor R2 and a fifth capacitor C5;
第一电阻R1的一端连接第一触点K1，第一电阻R1的另一端分别连接第一电容C1的一端和第二电容C2的一端；第一电容C1的另一端分别连接第一二极管D1的负极和第二二极管D2的正极；第二电容C2的另一端分别连接第三二极管D3的正极和第四二极管D4的负极；One end of the first resistor R1 is connected to the first contact K1, the other end of the first resistor R1 is connected to one end of the first capacitor C1 and one end of the second capacitor C2 respectively; the other end of the first capacitor C1 is connected to the first diode respectively. The cathode of D1 and the anode of the second diode D2; the other end of the second capacitor C2 is connected to the anode of the third diode D3 and the cathode of the fourth diode D4 respectively;
第二触点K2分别连接第一二极管D1的正极和第三二极管D3的负极；第一二极管D1的负极连接第二二极管D2的正极，第二二极管D2的负极分别连接第二电阻R2的一端、第五电容C5的一端、第五电容C5的另一端、第五二极管D5的负极、第五二极管D5的正极、第三电容C3的一端、第四电容C4的一端、第四二极管D4的正极和第四触点K4；第三二极管D3的正极连接第四二极管D4的负极，第四二极管D4的正极分别连接第二电阻R2的一端、第五电容C5的一端、第五电容C5的另一端、第五二极管D5的负极、第五二极管D5的正极、第三电容C3的一端、第四电容C4的一端和第四触点K4；第三电容C3的一端分别连接第二电阻R2的一端、第五电容C5的一端、第五电容C5的另一端、第五二极管D5的负极、第五二极管D5的正极、第四电容C4的一端和第四触点K4，第三电容C3的另一端分别连接第四电容C4的另一端和第二触点K2；第四电容C4的一端分别连接第二电阻R2的一端、第五电容C5的一端、第五电容C5的另一端、第五二极管D5的负极、第五二极管D5的正极和第四触点K4，第四电容C4的另一端连接第二触点K2；The second contact K2 is connected to the anode of the first diode D1 and the cathode of the third diode D3 respectively; the cathode of the first diode D1 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is connected to the cathode of the first diode D1. The negative electrodes are respectively connected to one end of the second resistor R2, one end of the fifth capacitor C5, the other end of the fifth capacitor C5, the cathode of the fifth diode D5, the anode of the fifth diode D5, one end of the third capacitor C3, One end of the fourth capacitor C4, the anode of the fourth diode D4 and the fourth contact K4; the anode of the third diode D3 is connected to the cathode of the fourth diode D4, and the anode of the fourth diode D4 is connected respectively. One end of the second resistor R2, one end of the fifth capacitor C5, the other end of the fifth capacitor C5, the cathode of the fifth diode D5, the anode of the fifth diode D5, one end of the third capacitor C3, the fourth capacitor One end of C4 and the fourth contact K4; one end of the third capacitor C3 is respectively connected to one end of the second resistor R2, one end of the fifth capacitor C5, the other end of the fifth capacitor C5, the cathode of the fifth diode D5, and the cathode of the fifth diode D5. The anode of the five diode D5, one end of the fourth capacitor C4 and the fourth contact K4, and the other end of the third capacitor C3 are respectively connected to the other end of the fourth capacitor C4 and the second contact K2; one end of the fourth capacitor C4 Connect one end of the second resistor R2, one end of the fifth capacitor C5, the other end of the fifth capacitor C5, the cathode of the fifth diode D5, the anode of the fifth diode D5 and the fourth contact K4 respectively. The other end of the capacitor C4 is connected to the second contact K2;
第五二极管D5的负极分别连接第二电阻R2的一端和第五电容C5的一端，第五二极管D5的正极分别连接第五电容C5的另一端和第四触点K4；第五电容C5的一端连接第二电阻R2的一端，第五电容C5的另一端连接第四触点K4；第二电阻R2的另一端连接第三触点K3。The cathode of the fifth diode D5 is respectively connected to one end of the second resistor R2 and one end of the fifth capacitor C5, and the anode of the fifth diode D5 is connected to the other end of the fifth capacitor C5 and the fourth contact K4 respectively; the fifth One end of the capacitor C5 is connected to one end of the second resistor R2, the other end of the fifth capacitor C5 is connected to the fourth contact K4, and the other end of the second resistor R2 is connected to the third contact K3.
其中，第一二极管D1、第二二极管D2、第三二极管D3和第四二极管D4可以指型号为1N3892A的二极管；第五二极管D5可以为稳压管；第一电容C1、第二电容C2、第三电容C3和第四电容C4可以指大小为10μF的电容；第五电容C5可以指大小为100nF的电容；第一电阻R1和第二电阻R2可以指大小为1kΩ的电阻。Among them, the first diode D1, the second diode D2, the third diode D3 and the fourth diode D4 may refer to diodes with model number 1N3892A; the fifth diode D5 may be a voltage regulator tube; The first capacitor C1, the second capacitor C2, the third capacitor C3 and the fourth capacitor C4 may refer to a capacitor having a size of 10 μF; the fifth capacitor C5 may refer to a capacitor having a size of 100 nF; the first resistor R1 and the second resistor R2 may refer to a capacitor having a size of 10 μF. is a 1kΩ resistor.
具体而言，第一电阻R1、第一电容C1、第二电容C2、第三电容C3、第四电容C4、第一二极管D1、第二二极管D2、第三二极管D3、第四二极管D4和第五二极管D5组成了整流滤波单元，以对第二取能线圈输出的感应电动势进行整流滤波，第二电阻R2和第五电容C5组成了第一稳压单元，用于稳压并输出驱动电压至供能回路。Specifically, the first resistor R1, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the first diode D1, the second diode D2, the third diode D3, The fourth diode D4 and the fifth diode D5 form a rectifier and filter unit to rectify and filter the induced electromotive force output by the second energy-taking coil. The second resistor R2 and the fifth capacitor C5 form the first voltage stabilizing unit. , used to stabilize the voltage and output the driving voltage to the energy supply circuit.
在其中一个实施例中，如图3所示，驱动回路设置有第三触点K3和第四触点K4；供能回路包括依次连接的开关单元、整流单元、储能单元和第二稳压单元；其中，开关单元设置有第五触点K5，整流单元设置有第六触点K6；In one embodiment, as shown in Figure 3, the drive circuit is provided with a third contact K3 and a fourth contact K4; the energy supply circuit includes a switching unit, a rectifier unit, an energy storage unit and a second voltage stabilizing unit connected in sequence. unit; wherein, the switch unit is provided with a fifth contact K5, and the rectifier unit is provided with a sixth contact K6;
开关单元通过第三触点K3和第四触点K4与驱动回路相连接，开关单元通过第五触点K5与第一取能线圈的一端相连接，整流单元通过第六触点K6与第一取能线圈的另一端相连接，储能单元的输出端分别连接稳压单元和控制回路的另一端，储能单元的输出端用于接地，稳压单元连接负载；开关单元和整流单元用于将获取到第一取能线圈输出的感应电动势进行整流，储能单元用于储能缓冲，第二稳压单元用于稳压。The switch unit is connected to the drive circuit through the third contact K3 and the fourth contact K4, the switch unit is connected to one end of the first energy-taking coil through the fifth contact K5, and the rectifier unit is connected to the first energy-taking coil through the sixth contact K6. The other end of the energy coil is connected, the output end of the energy storage unit is connected to the voltage stabilizing unit and the other end of the control loop respectively. The output end of the energy storage unit is used for grounding, and the voltage stabilizing unit is connected to the load; the switching unit and the rectifier unit are used for The induced electromotive force obtained from the output of the first energy coil is rectified, the energy storage unit is used for energy storage buffering, and the second voltage stabilizing unit is used for voltage stabilization.
具体而言，第一取能线圈通过第五触点K5连接至开关单元，通过第六触点K6连接至整流单元，第一取能线圈产生的感应电动势通过整流滤波、储能缓冲和DC-DC稳压，将电能输送到负载(微型智能传感器)中去。Specifically, the first energy-taking coil is connected to the switch unit through the fifth contact K5, and is connected to the rectification unit through the sixth contact K6. The induced electromotive force generated by the first energy-taking coil passes through rectification filtering, energy storage buffering and DC- DC voltage stabilization delivers power to the load (miniature smart sensor).
在其中一个实施例中，如图5所示，开关单元包括保护电路和开关电路；In one embodiment, as shown in Figure 5, the switch unit includes a protection circuit and a switch circuit;
开关电路的一端通过第三触点K3和第四触点K4与驱动回路相连接，开关电路的另一端连接保护电路，开关电路用于基于驱动电压切换工作状态，保护电路用于保护开关电路。One end of the switch circuit is connected to the drive circuit through the third contact K3 and the fourth contact K4, and the other end of the switch circuit is connected to the protection circuit. The switch circuit is used to switch the working state based on the drive voltage, and the protection circuit is used to protect the switch circuit.
具体地，开关电路可以通过第三触点K3和第四触点K4接收驱动回路输出的驱动电压，需要说明的是，驱动电压可以用于指示开关电路的导通，故驱动电压又可以称为导通电压；保护电路连接开关电路，保护电路可以在电压异常的情况下对开关电路进行保护。Specifically, the switching circuit can receive the driving voltage output from the driving circuit through the third contact K3 and the fourth contact K4. It should be noted that the driving voltage can be used to indicate the conduction of the switching circuit, so the driving voltage can also be called Turn-on voltage; the protection circuit is connected to the switching circuit, and the protection circuit can protect the switching circuit in the event of abnormal voltage.
本申请实施例中，设置有保护电路以对开关电路进行保护，提高电路安全性和保障电能正常供应。In the embodiment of the present application, a protection circuit is provided to protect the switch circuit, improve circuit safety and ensure normal supply of electric energy.
在其中一个实施例中，如图6所示，开关电路包括第一MOS管Q1(Metal-Oxide-Semiconductor field-effect transistor，金氧半场效晶体管)和第二MOS管Q2；保护电路包括第三电阻R3、第六电容C6和双向TVS二极管D6；In one embodiment, as shown in Figure 6, the switch circuit includes a first MOS transistor Q1 (Metal-Oxide-Semiconductor field-effect transistor, metal-oxide semi-field effect transistor) and a second MOS transistor Q2; the protection circuit includes a Three resistors R3, sixth capacitor C6 and bidirectional TVS diode D6;
第一MOS管Q1的栅极分别连接第三触点和第二MOS管Q2的栅极，第一MOS管Q1的源极分别连接第二MOS管Q2的源极和第四触点，第一MOS管Q1的漏极分别连接双向TVS二极管D6(Transient Voltage Suppression diode，瞬态电压抑制二极管)的一端和第三电阻R3的一端，第二MOS管Q2的漏极分别连接双向TVS二极管D6的另一端和第六电容C6的一端；双向TVS二极管D6的一端连接第三电阻R3的一端，双向TVS二极管D6的另一端连接第六电容C6的一端；第三电阻R3的另一端连接第六电容C6的另一端。The gate of the first MOS transistor Q1 is respectively connected to the third contact and the gate of the second MOS transistor Q2. The source of the first MOS transistor Q1 is respectively connected to the source of the second MOS transistor Q2 and the fourth contact. The drain of the MOS transistor Q1 is respectively connected to one end of the bidirectional TVS diode D6 (Transient Voltage Suppression diode, transient voltage suppression diode) and one end of the third resistor R3. The drain of the second MOS transistor Q2 is connected to the other end of the bidirectional TVS diode D6. One end and one end of the sixth capacitor C6; one end of the bidirectional TVS diode D6 is connected to one end of the third resistor R3, the other end of the bidirectional TVS diode D6 is connected to one end of the sixth capacitor C6; the other end of the third resistor R3 is connected to the sixth capacitor C6 the other end.
其中，第三电阻R3可以指大小为10kΩ的电阻；第六电容C6可以指大小为1nF的电容；双向TVS二极管D6可以指型号为ESD0P2RF-02LRH的双向TVS二极管。Among them, the third resistor R3 may refer to a resistor with a size of 10kΩ; the sixth capacitor C6 may refer to a capacitor with a size of 1nF; and the bidirectional TVS diode D6 may refer to a bidirectional TVS diode with model number ESD0P2RF-02LRH.
需要说明的是，双向TVS二极管D6可以指一种保护用的电子零件，可以保护电器设备不受导线引入的电压尖峰破坏。It should be noted that the bidirectional TVS diode D6 can refer to a protective electronic component that can protect electrical equipment from voltage spikes introduced by wires.
具体地，第一MOS管Q1和第二MOS管Q2串联在一起，在开关电路中起到电子开关的作用；第三电阻R3、第六电容C6和双向TVS二极管D6用于保护第一MOS管Q1和第二MOS管Q2，提高电路安全性和保障电能正常供应。Specifically, the first MOS tube Q1 and the second MOS tube Q2 are connected in series and function as an electronic switch in the switching circuit; the third resistor R3, the sixth capacitor C6 and the bidirectional TVS diode D6 are used to protect the first MOS tube. Q1 and the second MOS tube Q2 improve circuit safety and ensure normal supply of power.
示例性地，第一MOS管Q1和第二MOS管Q2是开关电路的核心元件，其中，MOS管有三个端口，分别是栅极G，源极S和漏极D。MOS管栅极G上加电压时，由于电场的作用，此时N型半导体的源极S和漏极D的负电子被吸引出来而涌向栅极G，但由于氧化膜的阻挡，使得电子聚集在两个N沟道之间的P型半导体中(如图6所示)，从而形成电流，使源极S和漏极D之间导通。也就是说，当栅极G电压大于源极S电压的时候，MOS管导通。如图5所示，由于稳压管(第五二极管D5)的作用，VG-VS(驱动电压)被钳制在15V左右，因此，图6中第一MOS管Q1的栅极G的电压是大于源极S的电压，因此第一MOS管Q1处于导通的状态，同理可知，第二MOS管Q2的栅极G的电压大于源极S的电压，第二MOS管Q2也处于导通的状态。For example, the first MOS transistor Q1 and the second MOS transistor Q2 are the core components of the switching circuit. The MOS transistor has three ports, namely the gate G, the source S and the drain D. When a voltage is applied to the gate G of the MOS tube, due to the action of the electric field, the negative electrons in the source S and drain D of the N-type semiconductor are attracted and rush to the gate G. However, due to the obstruction of the oxide film, the electrons Gathered in the P-type semiconductor between the two N channels (as shown in Figure 6), thereby forming a current, causing the source S and drain D to be conductive. That is to say, when the gate G voltage is greater than the source S voltage, the MOS tube is turned on. As shown in Figure 5, due to the action of the voltage regulator tube (fifth diode D5), VG-VS (driving voltage) is clamped at about 15V. Therefore, the voltage of the gate G of the first MOS transistor Q1 in Figure 6 is greater than the voltage of the source S, so the first MOS transistor Q1 is in a conductive state. Similarly, it can be seen that the voltage of the gate G of the second MOS transistor Q2 is greater than the voltage of the source S, and the second MOS transistor Q2 is also in a conductive state. pass status.
为了便于本领域技术人员的理解，下面结合一个具体示例对供能电路进行说明，如图7所示，驱动回路通过第三触点K3和第四触点K4与供能回路连接，供能回路包括了开关单元，整流单元，储能单元，第二稳压单元。第二稳压单元的输出端连接负载，第一取能线圈通过第五触点K5和第六触点K6与供能回路连接，并为供能回路提供感应电动势，通过整流滤波，储能缓冲和DC-DC稳压，将电能输送到负载(微型智能传感器)中去。开关单元的核心器件为第一MOS管Q1和第二MOS管Q2，两个MOS管形成一个电子开关。驱动回路在MOS管(第一MOS管Q1和第二MOS管Q2)的栅极VG和源极VS之间施加正电压，使得电子开关处于导通的状态(使得MOS管的栅极G电压大于源极S电压)。电子开关导通时，供能回路开始工作，电子开关关断时，取能停止。储能单元后续连接第二稳压单元，核心是DC-DC变换，用于给负载进行稳定供电。In order to facilitate the understanding of those skilled in the art, the energy supply circuit is described below with a specific example. As shown in Figure 7, the drive circuit is connected to the energy supply circuit through the third contact K3 and the fourth contact K4. The energy supply circuit It includes a switching unit, a rectifier unit, an energy storage unit, and a second voltage stabilizing unit. The output end of the second voltage stabilizing unit is connected to the load, and the first energy-taking coil is connected to the energy supply circuit through the fifth contact K5 and the sixth contact K6, and provides induced electromotive force for the energy supply circuit, through rectification, filtering, and energy storage buffering and DC-DC voltage stabilization to deliver power to the load (miniature smart sensor). The core components of the switch unit are the first MOS tube Q1 and the second MOS tube Q2, and the two MOS tubes form an electronic switch. The driving circuit applies a positive voltage between the gate VG and the source VS of the MOS tube (the first MOS tube Q1 and the second MOS tube Q2), so that the electronic switch is in a conductive state (making the gate G voltage of the MOS tube greater than source S voltage). When the electronic switch is turned on, the energy supply circuit starts to work; when the electronic switch is turned off, energy extraction stops. The energy storage unit is subsequently connected to the second voltage stabilizing unit, the core of which is DC-DC conversion, which is used to provide stable power supply to the load.
进一步地，第一MOS管Q1和第二MOS管Q2及附属的第三电阻R3、第六电容C6和双向TVS二极管D6构成了电子开关，此时假设电子开关导通，那么第一取能线圈产生的感应电动势(V2)将直接加在后续第七二极管D7、第八二极管D8、第七电容C7、第八电容C8、第九电容C9、第十电容C10上，构成了一个二倍压整流电路，工作原理如下：电子开关闭合，在V2的正半周，第七二极管D7导通，V2向第七电容C7充电，在V2的负半周，第八二极管D8导通，V2向第八电容C8充电。第九电容C9、第十电容C10是容值很大的缓冲电容，作用类似于储能，可用于维持输出电压Vout(反馈电压信号)的大小。因此，输出电压Vout为一个数值稳定的直流电压，可通过Vout为后续的负载(微型智能传感器)供电。Further, the first MOS transistor Q1 and the second MOS transistor Q2 and the attached third resistor R3, the sixth capacitor C6 and the bidirectional TVS diode D6 constitute an electronic switch. At this time, assuming that the electronic switch is turned on, then the first energy-taking coil The generated induced electromotive force (V2) will be directly added to the subsequent seventh diode D7, eighth diode D8, seventh capacitor C7, eighth capacitor C8, ninth capacitor C9, and tenth capacitor C10, forming a The working principle of the double voltage rectifier circuit is as follows: the electronic switch is closed, during the positive half cycle of V2, the seventh diode D7 conducts, V2 charges the seventh capacitor C7, during the negative half cycle of V2, the eighth diode D8 conducts Pass, V2 charges the eighth capacitor C8. The ninth capacitor C9 and the tenth capacitor C10 are buffer capacitors with a large capacitance. Their function is similar to energy storage and can be used to maintain the output voltage Vout (feedback voltage signal). Therefore, the output voltage Vout is a numerically stable DC voltage, which can be used to power subsequent loads (micro smart sensors) through Vout.
可选地，开关单元参考上述说明，在本申请实施例中不做赘述；第七二极管D7和第八二极管D8可以指型号为1N3892A的二极管；第七电容C7和第八电容C8可以指大小为10μF的电容；第九电容C9和第十电容C10可以指大小为220μF的电容；U3可以指型号为LM7805KC的直流稳压芯片。Optionally, refer to the above description for the switch unit, which will not be described in detail in the embodiment of this application; the seventh diode D7 and the eighth diode D8 may refer to diodes with model number 1N3892A; the seventh capacitor C7 and the eighth capacitor C8 It can refer to a capacitor with a size of 10μF; the ninth capacitor C9 and the tenth capacitor C10 can refer to a capacitor with a size of 220μF; U3 can refer to the DC voltage regulator chip model LM7805KC.
在其中一个实施例中，驱动回路设置有第三触点和第四触点；控制回路包括光耦控制单元和电压比较单元；In one embodiment, the drive circuit is provided with a third contact and a fourth contact; the control circuit includes an optocoupler control unit and a voltage comparison unit;
电压比较单元的一端连接光耦控制单元的另一端，电压比较单元的另一端连接供能回路的另一端，电压比较单元用于比较阈值电压和输出电压，并将比较结果输出至光耦控制单元；One end of the voltage comparison unit is connected to the other end of the optocoupler control unit, and the other end of the voltage comparison unit is connected to the other end of the energy supply loop. The voltage comparison unit is used to compare the threshold voltage and the output voltage, and output the comparison result to the optocoupler control unit. ;
光耦控制单元的一端连接在供能回路和驱动回路之间，光耦控制单元的另一端连接电压比较单元的一端，光耦控制单元基于比较结果对驱动电压进行调整。One end of the optocoupler control unit is connected between the energy supply circuit and the driving circuit, and the other end of the optocoupler control unit is connected to one end of the voltage comparison unit. The optocoupler control unit adjusts the driving voltage based on the comparison result.
其中，阈值电压的大小可以根据实际情况进行设定，在本申请实施例中以30V为例进行说明。The threshold voltage can be set according to the actual situation. In the embodiment of the present application, 30V is used as an example for explanation.
具体而言，电压比较单元中设置有用于进行比较的阈值电压，电压比较单元对输出电压Vout和阈值电压进行比较，并将比较结果输出至光耦控制单元；光耦控制单元，基于比较结果，输出相应的控制信号，以对驱动电压进行调整。Specifically, the voltage comparison unit is provided with a threshold voltage for comparison, the voltage comparison unit compares the output voltage Vout with the threshold voltage, and outputs the comparison result to the optocoupler control unit; the optocoupler control unit, based on the comparison result, Output corresponding control signals to adjust the driving voltage.
示例性地，储能单元输出端的电压Vout作为反馈控制的变量，输入到控制回路中去，控制回路包括光耦控制单元和电压比较单元。通过电压比较单元的判断，当输电线电流较大，或者输电线存在涌流，过电压，短路故障，雷击等异常情况，导致负载两端电压急剧上升的时候，光耦控制单元动作，输出信号使得VG＝VS，进一步导致电子开关关闭。因此，尽管此时第一取能线圈所感生的电动势很大，但是因为电子开关处于断开的状态，第一取能线圈所感生的电动势处于开路状态，对后续的电路无影响，有效保护了取能调理电路。在输电线处于正常电流的状态下，光耦控制单元不输出控制信号，电子开关保持闭合状态，供能回路正常工作，保证了对负载的及时，稳定供电。For example, the voltage Vout at the output end of the energy storage unit is input into the control loop as a feedback control variable, and the control loop includes an optocoupler control unit and a voltage comparison unit. Through the judgment of the voltage comparison unit, when the current in the transmission line is large, or there are inrush currents, overvoltage, short circuit faults, lightning strikes and other abnormal conditions in the transmission line, causing the voltage at both ends of the load to rise sharply, the optocoupler control unit acts and outputs a signal such that VG = VS, further causing the electronic switch to close. Therefore, although the electromotive force induced by the first energy-taking coil is very large at this time, because the electronic switch is in a disconnected state, the electromotive force induced by the first energy-taking coil is in an open-circuit state, which has no impact on the subsequent circuit, effectively protecting the Energy conditioning circuit. When the transmission line is in a normal current state, the optocoupler control unit does not output a control signal, the electronic switch remains closed, and the energy supply circuit operates normally, ensuring timely and stable power supply to the load.
本申请实施例中，电压比较单元通过对输出电压Vout和阈值电压进行比较，并将比较结果输出至光耦控制单元，光耦控制单元基于比较结果对驱动电压进行调整，从而指示电子开关切换至相应的工作状态，提高了电路安全性的同时保障电能正常供应。In the embodiment of the present application, the voltage comparison unit compares the output voltage Vout with the threshold voltage, and outputs the comparison result to the optocoupler control unit. The optocoupler control unit adjusts the driving voltage based on the comparison result, thereby instructing the electronic switch to switch to The corresponding working status improves the safety of the circuit while ensuring the normal supply of electric energy.
在其中一个实施例中，如图8所示，光耦控制单元为光耦继电器U1；电压比较单元包括运算放大器U2、第四电阻R4、第五电阻R5、第六电阻R6、第七电阻R7和比较电源V3；In one embodiment, as shown in Figure 8, the optocoupler control unit is an optocoupler relay U1; the voltage comparison unit includes an operational amplifier U2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7. and compare power supply V3;
光耦继电器U1的受光器的输入端分别连接第四触点K4和供能回路，光耦继电器U1的受光器的输出端分别连接第三触点K3和供能回路，光耦继电器U1的发光二极管的负极用于接地，光耦继电器U1的发光二极管的正极分别连接第四电阻R4的一端和第七电阻R7的一端；The input end of the photoreceptor of the optocoupler relay U1 is connected to the fourth contact K4 and the energy supply loop respectively. The output end of the photoreceptor of the optocoupler relay U1 is connected to the third contact K3 and the energy supply loop respectively. The luminescence of the optocoupler relay U1 The cathode of the diode is used for grounding, and the anode of the light-emitting diode of the optocoupler relay U1 is connected to one end of the fourth resistor R4 and one end of the seventh resistor R7 respectively;
第四电阻R4的另一端分别连接第五电阻R5的一端和运算放大器U2的正相输入端，第七电阻R7的另一端连接运算放大器U2的输出端，运算放大器U2的正相输入端连接第五电阻R5的一端，运算放大器U2的反相输入端连接第六电阻R6的一端，第五电阻R5的另一端连接供能回路的另一端，第六电阻R6的另一端连接比较电源V3的正极，比较电源V3的负极用于接地。The other end of the fourth resistor R4 is connected to one end of the fifth resistor R5 and the non-inverting input terminal of the operational amplifier U2 respectively. The other end of the seventh resistor R7 is connected to the output terminal of the operational amplifier U2. The non-inverting input terminal of the operational amplifier U2 is connected to the third operational amplifier U2. One end of the fifth resistor R5 and the inverting input end of the operational amplifier U2 are connected to one end of the sixth resistor R6, the other end of the fifth resistor R5 is connected to the other end of the energy supply circuit, and the other end of the sixth resistor R6 is connected to the positive electrode of the comparison power supply V3. , the negative pole of the comparison power supply V3 is used for grounding.
其中，比较电源V3用于输出阈值电压Vt；运算放大器U2还连接有电源VCC和电源VDD，进一步地，供电电源VCC和供电电源VDD可以根据实际情况进行设定，本申请实施例中以电源VCC为15V、电源VDD为-15V为例进行说明。Among them, the comparison power supply V3 is used to output the threshold voltage Vt; the operational amplifier U2 is also connected to the power supply VCC and the power supply VDD. Furthermore, the power supply VCC and the power supply VDD can be set according to the actual situation. In the embodiment of this application, the power supply VCC For example, it is 15V and the power supply VDD is -15V.
示例性地，光耦继电器U1的自适应控制是控制回路的控制关键，光耦继电器U1可以以光为介质传输电信号，它对输入输出电信号有很好的隔离作用，因此被广泛应用于各种电路中。输出电压Vout，比较电源V3，运算放大器U2，供电电源VCC，供电电源VDD，第五电阻R5、第六电阻R6和第七电阻R7构成了比较器。当输出电压Vout大于阈值电压Vt(30V)时，运算放大器U2输出电压Vb为高电平；当输出电压Vout小于阈值电压Vt时，运算放大器U2输出电压Vb为低电平。For example, the adaptive control of the optocoupler relay U1 is the key to the control loop. The optocoupler relay U1 can transmit electrical signals using light as a medium. It has a good isolation effect on input and output electrical signals, so it is widely used. in various circuits. The output voltage Vout, comparison power supply V3, operational amplifier U2, power supply VCC, power supply VDD, fifth resistor R5, sixth resistor R6 and seventh resistor R7 constitute a comparator. When the output voltage Vout is greater than the threshold voltage Vt (30V), the output voltage Vb of the operational amplifier U2 is high level; when the output voltage Vout is less than the threshold voltage Vt, the output voltage Vb of the operational amplifier U2 is low level.
进一步地，光耦继电器U1是一个常开器件。因此，当光耦继电器U1处于“常开”状态的时候，光耦继电器U1的端口3和端口4之间不导通，VG和VS数值不相等，且根据前面的分析，此时第一MOS管Q1和第二MOS管Q2导通。当Vb为高电平时，光耦继电器U1为闭合状态，此时光耦继电器U1的端口3和端口4之间导通，VG和VS数值相等，根据前面的分析，此时第一MOS管Q1和第二MOS管Q2关断。回到供电回路中，当第一MOS管Q1和第二MOS管Q2关断时，第一取能线圈的感应电动势V2停止充电，避免了负载受到过大电压的影响。Further, the optocoupler relay U1 is a normally open device. Therefore, when the optocoupler relay U1 is in the "normally open" state, there is no conduction between port 3 and port 4 of the optocoupler relay U1, the values of VG and VS are not equal, and according to the previous analysis, the first MOS The tube Q1 and the second MOS tube Q2 are turned on. When Vb is high level, the optocoupler relay U1 is in a closed state. At this time, the port 3 and port 4 of the optocoupler relay U1 are connected, and the values of VG and VS are equal. According to the previous analysis, at this time, the first MOS tube Q1 and The second MOS transistor Q2 is turned off. Back in the power supply circuit, when the first MOS transistor Q1 and the second MOS transistor Q2 are turned off, the induced electromotive force V2 of the first energy-taking coil stops charging, preventing the load from being affected by excessive voltage.
本申请实施例中，通过光耦控制单元和电压比较单元，提高了电路安全性，保证了对负载的及时，稳定供电。In the embodiment of the present application, the optocoupler control unit and the voltage comparison unit improve circuit safety and ensure timely and stable power supply to the load.
为了便于本领域技术人员的理解，下面结合一个具体示例对取能调理电路进行说明，如图9所示，光耦继电器U1的端口3和端口4串入供能回路，光耦继电器U1的发光二极管经整流桥向传感器供电；当取能功率小于负荷功率时，输出电压Vout低于阈值电压Vt，光耦继电器U1的发光二极管熄灭，光耦继电器U1闭合，第一取能线圈按最大能力取能；当取能功率大于负荷功率时，输出电压Vout高于阈值电压Vt，光耦继电器U1的发光二极管点亮，光耦继电器U1导通，控制MOS管(第一MOS管Q1和第二MOS管Q2)闭合，取能输出为零，以此自动适应负荷用能需求，有效减小发热，保障电能正常供应的同时提高了电路的安全性。In order to facilitate the understanding of those skilled in the art, the energy conditioning circuit will be described below with a specific example. As shown in Figure 9, port 3 and port 4 of the optocoupler relay U1 are connected in series to the energy supply loop, and the light emission of the optocoupler relay U1 The diode supplies power to the sensor through the rectifier bridge; when the energy-taking power is less than the load power, the output voltage Vout is lower than the threshold voltage Vt, the light-emitting diode of the optocoupler relay U1 goes out, the optocoupler relay U1 is closed, and the first energy-taking coil is activated according to its maximum capacity. Yes; when the energy power is greater than the load power, the output voltage Vout is higher than the threshold voltage Vt, the light-emitting diode of the optocoupler relay U1 lights up, the optocoupler relay U1 conducts, and controls the MOS tubes (the first MOS tube Q1 and the second MOS tube When the tube Q2) is closed, the energy output is zero, thereby automatically adapting to the load energy demand, effectively reducing heat generation, ensuring the normal supply of electric energy and improving the safety of the circuit.
需要说明的是，图9中各元器件如上述所示，在本申请实施例中不做限定；图1至图9中的线路存在黑色圆点部分为相互连接，其他线路表示为交叠而不连接。It should be noted that each component in Figure 9 is as shown above and is not limited in the embodiment of the present application; the black dots in the circuits in Figures 1 to 9 are connected to each other, and other circuits are represented as overlapping. Not connected.
在一个实施例中，如图10所示，还提供了一种基于光耦自动控制的传感器宽范围取能调理方法，方法应用于上述的基于光耦自动控制的传感器宽范围取能调理电路，方法包括：In one embodiment, as shown in Figure 10, a sensor wide range energy conditioning method based on optocoupler automatic control is also provided. The method is applied to the above sensor wide range energy conditioning circuit based on optocoupler automatic control, Methods include:
S10，获取供能回路的输出电压；S10, obtain the output voltage of the energy supply circuit;
S20，基于输出电压对驱动回路输出的驱动电压进行调整，驱动电压用于指示供能回路进入相应的工作状态。S20, adjust the driving voltage output by the driving circuit based on the output voltage, and the driving voltage is used to indicate that the energy supply circuit enters the corresponding working state.
具体而言，控制回路可以将供能回路的输出电压作为反馈控制的变量，控制回路中可以存储有比较电压，以对输出电压进行比较，当输出电压较大，或者输电线存在涌流，过电压，短路故障，雷击等异常情况时，导致负载两端电压急剧上升的时候，控制回路可以输出控制信号，以使流入第一MOS管Q1的栅极和源极的电压相等，同理，第二MOS管Q2的栅极和源极的电压相等，即，第一MOS管Q1和第二MOS管Q2关断，电子开关关闭，有效的保护了取能调理电路；当输出电压处于正常状态下，控制回路不输出控制信号电子开关保持闭合状态，供能回路正常工作，保证了对负载的及时，稳定供电。Specifically, the control loop can use the output voltage of the energy supply loop as a variable for feedback control. The control loop can store a comparison voltage to compare the output voltage. When the output voltage is large, or there is an inrush current or overvoltage in the transmission line, , when abnormal conditions such as short circuit faults and lightning strikes cause the voltage at both ends of the load to rise sharply, the control loop can output a control signal to make the voltages flowing into the gate and source of the first MOS transistor Q1 equal. In the same way, the second The gate and source voltages of MOS tube Q2 are equal, that is, the first MOS tube Q1 and the second MOS tube Q2 are turned off, and the electronic switch is turned off, which effectively protects the energy conditioning circuit; when the output voltage is in a normal state, When the control loop does not output a control signal, the electronic switch remains closed and the energy supply loop operates normally, ensuring timely and stable power supply to the load.
示例性地，当输出电压较大，或者输电线存在涌流，过电压，短路故障，雷击等异常情况时，第一取能线圈所感生的电动势很大，但是因为电子开关处于断开(关断)的状态，第一取能线圈感生的电动势处于开路状态，对后续的电路无影响，有效保护了取能调理电路。For example, when the output voltage is large, or there are inrush currents, overvoltages, short-circuit faults, lightning strikes and other abnormal conditions in the transmission line, the electromotive force induced by the first energy-taking coil is very large, but because the electronic switch is turned off (off) ) state, the electromotive force induced by the first energy-taking coil is in an open-circuit state and has no impact on subsequent circuits, effectively protecting the energy-taking conditioning circuit.
上述取能调理方法，通过基于供能回路的输出电压对驱动电压进行调整，以此自动适应负荷用能需求，保障电能正常供应的同时提高了电路的安全性。The above-mentioned energy conditioning method adjusts the driving voltage based on the output voltage of the energy supply circuit, thereby automatically adapting to the load energy demand, ensuring the normal supply of electric energy and improving the safety of the circuit.
在一个实施例中，还提供了一种电源转换电路，包括第一取能线圈、第二取能线圈、负载和上述的基于光耦自动控制的传感器宽范围取能调理电路；In one embodiment, a power conversion circuit is also provided, including a first energy coil, a second energy coil, a load, and the above-mentioned sensor wide-range energy conditioning circuit based on optocoupler automatic control;
基于光耦自动控制的传感器宽范围取能调理电路分别连接第一取能线圈、第二取能线圈和负载。The sensor's wide-range energy-taking conditioning circuit based on optocoupler automatic control is connected to the first energy-taking coil, the second energy-taking coil and the load respectively.
在本说明书的描述中，参考术语“有些实施例”、“其他实施例”、“理想实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特征包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性描述不一定指的是相同的实施例或示例。In the description of this specification, reference to the terms "some embodiments," "other embodiments," "ideal embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included herein. In at least one embodiment or example of the application. In this specification, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used. It is considered to be within the scope of this manual.
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请的保护范围应以所附权利要求为准。The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the scope of protection of this application should be determined by the appended claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311048858.0ACN117200468A (en) | 2023-08-18 | 2023-08-18 | Sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311048858.0ACN117200468A (en) | 2023-08-18 | 2023-08-18 | Sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control |
| Publication Number | Publication Date |
|---|---|
| CN117200468Atrue CN117200468A (en) | 2023-12-08 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311048858.0APendingCN117200468A (en) | 2023-08-18 | 2023-08-18 | Sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control |
| Country | Link |
|---|---|
| CN (1) | CN117200468A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474472A (en)* | 2020-06-02 | 2020-07-31 | 厦门市福工动力技术有限公司 | A contactor abnormality detection circuit |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474472A (en)* | 2020-06-02 | 2020-07-31 | 厦门市福工动力技术有限公司 | A contactor abnormality detection circuit |
| Publication | Publication Date | Title |
|---|---|---|
| CN103179764B (en) | A kind of LED with self-adaptive driving circuit and self-adaptive driving circuit | |
| CN205453114U (en) | Power supply surge inhibitor with prevent joining conversely function | |
| WO2019169904A1 (en) | Low-cost input anti-overvoltage protection circuit | |
| CN103683204A (en) | Switching power supply over-current protection circuit | |
| CN104184111B (en) | Overvoltage protection circuit for high-voltage transmission line ground wire power getting | |
| CN217037504U (en) | LED dimming circuit and dimming LED lamp | |
| CN113054754B (en) | A dual-coil inner and outer ring induction energy harvesting system | |
| CN108695928B (en) | Isolated photovoltaic charging device and method | |
| CN117200468A (en) | Sensor wide-range energy-taking conditioning method and circuit based on optocoupler automatic control | |
| CN108539872A (en) | Power taking system based on load current of power transmission line | |
| CN207304400U (en) | A kind of driving power | |
| CN202750021U (en) | Converter for converting alternating current into direct current | |
| CN221448300U (en) | Control circuit of power over Ethernet system | |
| CN110190761B (en) | AC-DC conversion circuit and method | |
| CN205509665U (en) | 3G wireless network video monitoring device power supply | |
| CN220342327U (en) | PSE equipment with automatic identification function | |
| CN209375471U (en) | A kind of control circuit based on Switching Power Supply | |
| CN209250218U (en) | A kind of input undervoltage protection circuit and driving power | |
| CN108599280B (en) | On-line power taking circuit and system of current limiter in DC transmission system | |
| CN207504647U (en) | Wide area intelligence mutual inductance takes electric control system | |
| CN212518766U (en) | Output circuit and switching power supply system applying same | |
| CN206743267U (en) | A kind of non-isolated power supply circuit and equipment | |
| CN108923388A (en) | A kind of fault detection circuit powering on buffer cell and method | |
| CN212969053U (en) | Integrated CT induction power taking circuit and device | |
| CN212969142U (en) | Integrated CT induction power supply device |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information | Country or region after:China Address after:Room 86, room 406, No.1, Yichuang street, Zhongxin Guangzhou Knowledge City, Huangpu District, Guangzhou City, Guangdong Province Applicant after:Southern Power Grid Digital Grid Research Institute Co.,Ltd. Address before:Room 86, room 406, No.1, Yichuang street, Zhongxin Guangzhou Knowledge City, Huangpu District, Guangzhou City, Guangdong Province Applicant before:Southern Power Grid Digital Grid Research Institute Co.,Ltd. Country or region before:China |