技术领域technical field
本实用新型涉及一种线性恒流LED灯，尤其是涉及一种具有光感应功能的线性恒流LED灯。The utility model relates to a linear constant current LED lamp, in particular to a linear constant current LED lamp with light sensing function.
背景技术Background technique
随着线性恒流LED灯的广泛使用，市场也对其功能提出了照明以外的其他更高的要求，具有光感应功能的线性恒流LED灯应运而生。具有光感应功能的LED灯实时检测所处环境中光照度大小，当检测到的光照度小于其内设置的参考阈值时，LED灯开启进入照明模式，而当检测到的光照度不小于其内设置的参考阈值时，LED灯关闭。具有光感应功能的线性恒流LED灯能根据环境的明暗自动开启或者关闭，越来越被广泛地应用在室外的路灯景观以及室内的过道照明。With the widespread use of linear constant-current LED lamps, the market also puts forward higher requirements for its functions other than lighting, and linear constant-current LED lamps with light-sensing functions have emerged as the times require. The LED light with light sensing function detects the illuminance in the environment in real time. When the detected illuminance is less than the reference threshold set in it, the LED light turns on and enters the lighting mode, and when the detected illuminance is not less than the reference threshold set in it threshold, the LED light turns off. Linear constant current LED lamps with light sensing function can be automatically turned on or off according to the brightness and darkness of the environment, and are more and more widely used in outdoor street lighting landscapes and indoor aisle lighting.
现有的具有光感应功能的线性恒流LED灯包括LED发光电路、交流转直流电路、线性恒流电路、串联型稳压电路、光感应电路和单片机控制电路，如图1所示。其中LED发光电路具有正输入端和负输入端，交流转直流电路具有火线输入端、零线输入端、输出端和接地端，线性恒流电路具有输入端、控制端、输出端和接地端，串联型稳压电路具有输入端、输出端和接地端；光感应电路具有输入端、输出端和接地端，单片机控制电路具有输入端、控制端、输出端和接地端；交流转直流电路的火线输入端接市电的火线，零线输入端接市电的零线，交流转直流电路的输出端、LED发光电路的正输入端和串联型稳压电路的输入端连接，LED发光电路的负输入端和线性恒流电路的输出端连接；串联型稳压电路的输出端、线性恒流电路的输入端、单片机控制电路的输入端和光感应电路的输入端连接；光感应电路的输出端和单片机控制电路的控制端连接，单片机控制电路的输出端与线性恒流电路的控制端连接，交流转直流电路的接地端、串联型稳压电路的接地端、单片机控制电路的接地端、光感应电路的接地端和线性恒流电路的接地端连接。The existing linear constant current LED lamp with light sensing function includes LED lighting circuit, AC to DC circuit, linear constant current circuit, series voltage stabilizing circuit, light sensing circuit and single-chip microcomputer control circuit, as shown in Fig. 1 . Among them, the LED light-emitting circuit has a positive input terminal and a negative input terminal, the AC-to-DC circuit has a fire wire input terminal, a neutral line input terminal, an output terminal and a ground terminal, and a linear constant current circuit has an input terminal, a control terminal, an output terminal and a ground terminal. The series voltage stabilizing circuit has an input terminal, an output terminal and a ground terminal; the light sensing circuit has an input terminal, an output terminal and a ground terminal; the single-chip microcomputer control circuit has an input terminal, a control terminal, an output terminal and a ground terminal; The input terminal is connected to the live wire of the commercial power, the neutral line input terminal is connected to the neutral wire of the commercial power, the output terminal of the AC to DC circuit, the positive input terminal of the LED lighting circuit and the input terminal of the series voltage regulator circuit are connected, and the negative terminal of the LED lighting circuit is connected. The input end is connected with the output end of the linear constant current circuit; the output end of the series voltage stabilizing circuit, the input end of the linear constant current circuit, the input end of the single-chip microcomputer control circuit are connected with the input end of the light sensing circuit; the output end of the light sensing circuit is connected with the input end of the light sensing circuit. The control terminal of the single-chip control circuit is connected, the output terminal of the single-chip control circuit is connected with the control terminal of the linear constant current circuit, the ground terminal of the AC to DC circuit, the ground terminal of the series voltage regulator circuit, the ground terminal of the single-chip control circuit, and the light sensor The ground terminal of the circuit is connected with the ground terminal of the linear constant current circuit.
虽然现有的具有光感应功能的线性恒流LED灯在性能指标上具有一定的优势。但是，对于只作为路灯或景观照明用途来说，具有光感应功能的线性恒流LED灯的成本是优先考虑的指标。该线性恒流LED灯中采用的串联型稳压电路和单片机控制电路，其中，串联型稳压电路要满足单片机控制电路的供电要求，由此该串联型稳压电路的指标要求较高，成本较高，同时单片机控制电路的使用也增加了成本，由此该线性恒流LED灯的成本偏高。Although the existing linear constant current LED lamps with light sensing function have certain advantages in terms of performance indicators. However, for street lights or landscape lighting purposes only, the cost of linear constant current LED lights with light sensing function is a priority indicator. The series-type voltage stabilizing circuit and the single-chip microcomputer control circuit used in the linear constant-current LED lamp, among them, the series-type voltage stabilizing circuit must meet the power supply requirements of the single-chip microcomputer control circuit, so the index requirements of the series-type voltage stabilizing circuit are relatively high, and the cost At the same time, the use of the single-chip microcomputer control circuit also increases the cost, so the cost of the linear constant current LED lamp is relatively high.
发明内容Contents of the invention
本实用新型所要解决的技术问题是提供一种成本较低的具有光感应功能的线性恒流LED灯。The technical problem to be solved by the utility model is to provide a low-cost linear constant current LED lamp with light sensing function.
本实用新型解决上述技术问题所采用的技术方案为：一种具有光感应功能的线性恒流LED灯，包括LED发光电路、交流转直流电路、线性恒流电路和光感应电路，所述的LED发光电路具有正输入端和负输入端，所述的交流转直流电路具有火线输入端、零线输入端、输出端和接地端，所述的线性恒流电路具有输入端、控制端、输出端和接地端，所述的光感应电路具有输入端、输出端和接地端，所述的交流转直流电路的火线输入端用于接市电的火线，零线输入端用于接市电的零线，所述的LED发光电路的负输入端和所述的线性恒流电路的输出端连接，所述的线性恒流LED灯还包括并联型稳压电路和状态保持电路，所述的并联型稳压电路具有输入端、输出端和接地端，所述的状态保持电路具有输入端、输出端和接地端，所述的交流转直流电路的输出端、所述的LED发光电路的正输入端和所述的并联型稳压电路的输入端连接，所述的并联型稳压电路的输出端、所述的线性恒流电路的输入端和所述的光感应电路的输入端连接，所述的光感应电路的输出端和所述的状态保持电路的输入端连接，所述的状态保持电路的输出端与所述的线性恒流电路的控制端连接，所述的交流转直流电路的接地端、所述的并联型稳压电路的接地端、所述的状态保持电路的接地端、所述的光感应电路的接地端和所述的线性恒流电路的接地端连接。The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a linear constant current LED lamp with light sensing function, including an LED light emitting circuit, an AC to DC circuit, a linear constant current circuit and a light sensing circuit. The circuit has a positive input terminal and a negative input terminal, the AC-to-DC circuit has a fire wire input terminal, a neutral line input terminal, an output terminal and a ground terminal, and the linear constant current circuit has an input terminal, a control terminal, an output terminal and The ground terminal, the optical sensing circuit has an input terminal, an output terminal and a ground terminal, the live wire input terminal of the AC-to-DC circuit is used to connect to the live wire of the mains, and the neutral line input is used to connect to the neutral wire of the mains , the negative input terminal of the LED lighting circuit is connected to the output terminal of the linear constant current circuit, the linear constant current LED lamp also includes a parallel voltage stabilizing circuit and a state holding circuit, and the parallel stabilizing circuit The voltage circuit has an input terminal, an output terminal and a ground terminal, the state holding circuit has an input terminal, an output terminal and a ground terminal, the output terminal of the AC to DC circuit, the positive input terminal of the LED lighting circuit and The input end of the parallel voltage stabilizing circuit is connected, the output end of the parallel voltage stabilizing circuit, the input end of the linear constant current circuit and the input end of the light sensing circuit are connected, and the The output end of the light sensing circuit is connected to the input end of the state holding circuit, the output end of the state holding circuit is connected to the control end of the linear constant current circuit, and the ground end of the AC to DC circuit , the ground terminal of the parallel voltage stabilizing circuit, the ground terminal of the state holding circuit, the ground terminal of the light sensing circuit and the ground terminal of the linear constant current circuit are connected.
所述的并联型稳压电路包括第一电阻、第一电容和第一二极管，所述的第一电容为电解电容，所述的第一二极管为稳压二极管，所述的第一电阻的一端为所述的并联型稳压电路的输入端，所述的第一电阻的另一端、所述的第一二极管的负极和所述的第一电容的正极连接且其连接端为所述的并联型稳压电路的输出端，所述的第一二极管的正极和所述的第一电容的负极连接且其连接端为所述的并联型稳压电路的接地端。该并联型稳压电路通过第一电阻、第一电容和第一二极管组成，结构简单，成本低廉。The parallel voltage stabilizing circuit includes a first resistor, a first capacitor and a first diode, the first capacitor is an electrolytic capacitor, the first diode is a Zener diode, and the first One end of a resistor is the input end of the parallel voltage stabilizing circuit, the other end of the first resistor, the cathode of the first diode and the anode of the first capacitor are connected and connected terminal is the output terminal of the parallel-connected voltage stabilizing circuit, the anode of the first diode is connected to the negative pole of the first capacitor and its connection terminal is the ground terminal of the parallel-connected voltage stabilizing circuit . The parallel voltage stabilizing circuit is composed of a first resistor, a first capacitor and a first diode, and has a simple structure and low cost.
所述的光感应电路包括第二电阻和光敏三极管，所述的第二电阻的一端为所述的光感应电路的输入端，所述的第二电阻的另一端和所述的光敏三极管的集电极连接且连接端为所述的光感应电路的输出端，所述的光敏三极管的发射极为所述的光感应电路的接地端。The photosensitive circuit includes a second resistor and a phototransistor, one end of the second resistor is the input terminal of the photosensitive circuit, and the other end of the second resistor is connected to the phototransistor. The electrodes are connected and the connecting end is the output end of the photo-sensing circuit, and the emitter of the phototransistor is the grounding end of the photo-sensing circuit.
所述的状态保持电路包括第二二极管、第二电容和第三电阻，所述的第二电容为普通电容，所述的第二二极管为整流二极管，所述的第二二极管的正极为所述的状态保持电路的输入端，所述的第二二极管的负极、所述的第二电容的一端和所述的第三电阻的一端连接且其连接端为所述的状态保持电路的输出端，所述的第二电容的另一端和所述的第三电阻的另一端连接且其连接端为所述的状态保持电路的接地端。该状态保持电路由第二二极管、第二电容和第三电阻构成，结构简单，成本低廉。The state holding circuit includes a second diode, a second capacitor and a third resistor, the second capacitor is an ordinary capacitor, the second diode is a rectifier diode, and the second diode The anode of the tube is the input terminal of the state holding circuit, the negative pole of the second diode, one end of the second capacitor and one end of the third resistor are connected, and the connection end is the The output end of the state holding circuit, the other end of the second capacitor is connected to the other end of the third resistor, and the connection end is the ground end of the state holding circuit. The state holding circuit is composed of a second diode, a second capacitor and a third resistor, and has a simple structure and low cost.
所述的线性恒流电路包括型号为SM2083的恒流芯片和第四电阻，所述的恒流芯片的第1脚为所述的线性恒流电路的输入端，所述的恒流芯片的第8脚为所述的线性恒流电路的输出端，所述的恒流芯片的第4脚为所述的线性恒流电路的控制端，所述的恒流芯片的第5脚和所述的第四电阻的一端连接，所述的第四电阻的另一端和所述的恒流芯片的第3脚连接且其连接端为所述的线性恒流电路的接地端。The linear constant current circuit includes a constant current chip of model SM2083 and a fourth resistor, the first pin of the constant current chip is the input end of the linear constant current circuit, the first pin of the constant current chip is Pin 8 is the output terminal of the linear constant current circuit, pin 4 of the constant current chip is the control terminal of the linear constant current circuit, pin 5 of the constant current chip and the One end of the fourth resistor is connected, and the other end of the fourth resistor is connected to the third pin of the constant current chip, and its connection end is the ground end of the linear constant current circuit.
所述的交流转直流电路包括全桥整流桥和第三电容，所述的第三电容为电解电容，所述的全桥整流桥的第1脚为所述的交流转直流电路的火线输入端，所述的全桥整流桥的第3脚为所述的交流转直流电路的零线输入端，所述的全桥整流桥的第2脚和所述的第三电容的正极连接且其连接端为所述的交流转直流电路的输出端，所述的全桥整流桥的第4脚和所述的第三电容的负极连接且其连接端为所述的交流转直流电路的接地端。The AC-to-DC circuit includes a full-bridge rectifier bridge and a third capacitor, the third capacitor is an electrolytic capacitor, and the first pin of the full-bridge rectifier bridge is the live wire input end of the AC-to-DC circuit , the 3rd pin of the full-bridge rectifier bridge is the zero line input end of the described AC-to-DC circuit, the 2nd pin of the full-bridge rectifier bridge is connected to the anode of the third capacitor and connected to terminal is the output terminal of the AC-to-DC circuit, the fourth pin of the full-bridge rectifier bridge is connected to the negative pole of the third capacitor and its connection terminal is the ground terminal of the AC-to-DC circuit.
与现有技术相比，本实用新型的优点在于通过设置并联型稳压电路和状态保持电路，并联型稳压电路具有输入端、输出端和接地端，状态保持电路具有输入端、输出端和接地端，交流转直流电路的输出端、LED发光电路的正输入端和并联型稳压电路的输入端连接，并联型稳压电路的输出端、线性恒流电路的输入端和光感应电路的输入端连接，光感应电路的输出端和状态保持电路的输入端连接，状态保持电路的输出端与线性恒流电路的控制端连接，交流转直流电路的接地端、并联型稳压电路的接地端、状态保持电路的接地端、光感应电路的接地端和线性恒流电路的接地端连接，本实用新型中采用并联型稳压电路取代串联型稳压电路，并联型稳压电路用稳压二极管的作为核心稳压元件，相对于需要先从高电压转变为低电压，再进行集成电路稳压的串联型稳压电路，极大的降低电路成本，而结构简单且成本较低的状态保持电路取代单片机控制电路，用于将光感应电路的输出的电压信号保持一段时间输送给线性恒流电路，又进一步降低了成本，由此本实用新型的具有光感应功能的线性恒流LED灯的成本较低，具有较高的性价比，易于推广使用。Compared with the prior art, the utility model has the advantage that by setting a parallel voltage stabilizing circuit and a state holding circuit, the parallel voltage stabilizing circuit has an input end, an output end and a grounding end, and the state holding circuit has an input end, an output end and a grounding end. The ground terminal, the output terminal of the AC to DC circuit, the positive input terminal of the LED light-emitting circuit and the input terminal of the parallel voltage stabilizing circuit are connected, the output terminal of the parallel voltage stabilizing circuit, the input terminal of the linear constant current circuit and the input of the light sensing circuit The output terminal of the light sensing circuit is connected to the input terminal of the state holding circuit, the output terminal of the state holding circuit is connected to the control terminal of the linear constant current circuit, the ground terminal of the AC to DC circuit, and the ground terminal of the parallel voltage stabilizing circuit 1. The grounding terminal of the state holding circuit, the grounding terminal of the light sensing circuit and the grounding terminal of the linear constant current circuit are connected. In the utility model, a parallel-connected voltage stabilizing circuit is used to replace the series-connected voltage stabilizing circuit, and the parallel-connected voltage stabilizing circuit uses a Zener diode As the core voltage stabilizing element, compared with the series voltage stabilizing circuit that needs to be converted from high voltage to low voltage first, and then stabilized by integrated circuits, the circuit cost is greatly reduced, and the state holding circuit with simple structure and low cost Instead of the single-chip microcomputer control circuit, it is used to keep the output voltage signal of the light sensing circuit for a period of time and send it to the linear constant current circuit, which further reduces the cost. Therefore, the cost of the linear constant current LED lamp with light sensing function of the utility model Low, with high cost performance, easy to promote and use.
附图说明Description of drawings
图1为现有的具有光感应功能的线性恒流LED灯的结构框图；Fig. 1 is the structural block diagram of the existing linear constant current LED lamp with light sensing function;
图2为本实用新型的具有光感应功能的线性恒流LED灯的结构框图；Fig. 2 is the structural block diagram of the linear constant current LED lamp with light sensing function of the present utility model;
图3为本实用新型的具有光感应功能的线性恒流LED灯的电路图。Fig. 3 is a circuit diagram of the linear constant current LED lamp with light sensing function of the present invention.
具体实施方式Detailed ways
以下结合附图实施例对本实用新型作进一步详细描述。The utility model is described in further detail below in conjunction with the accompanying drawings.
实施例一：如图2所示，一种具有光感应功能的线性恒流LED灯，包括LED发光电路、交流转直流电路、线性恒流电路和光感应电路，LED发光电路具有正输入端和负输入端，交流转直流电路具有火线输入端、零线输入端、输出端和接地端，线性恒流电路具有输入端、控制端、输出端和接地端，光感应电路具有输入端、输出端和接地端，交流转直流电路的火线输入端用于接市电的火线，零线输入端用于接市电的零线，LED发光电路的负输入端和线性恒流电路的输出端连接，线性恒流LED灯还包括并联型稳压电路和状态保持电路，并联型稳压电路具有输入端、输出端和接地端，状态保持电路具有输入端、输出端和接地端，交流转直流电路的输出端、LED发光电路的正输入端和并联型稳压电路的输入端连接，并联型稳压电路的输出端、线性恒流电路的输入端和光感应电路的输入端连接，光感应电路的输出端和状态保持电路的输入端连接，状态保持电路的输出端与线性恒流电路的控制端连接，交流转直流电路的接地端、并联型稳压电路的接地端、状态保持电路的接地端、光感应电路的接地端和线性恒流电路的接地端连接。Embodiment 1: As shown in Figure 2, a linear constant current LED lamp with light sensing function includes an LED lighting circuit, an AC to DC circuit, a linear constant current circuit and a light sensing circuit. The LED lighting circuit has a positive input terminal and a negative input terminal. The input terminal, the AC to DC circuit has a fire wire input terminal, the neutral line input terminal, an output terminal and a ground terminal, the linear constant current circuit has an input terminal, a control terminal, an output terminal and a ground terminal, and the light sensing circuit has an input terminal, an output terminal and a ground terminal. The ground terminal, the live wire input terminal of the AC to DC circuit is used to connect the live wire of the mains, the neutral line input terminal is used to connect the neutral line of the mains power, the negative input terminal of the LED light-emitting circuit is connected to the output terminal of the linear constant current circuit, and the linear The constant current LED lamp also includes a parallel voltage stabilizing circuit and a state holding circuit. The parallel voltage stabilizing circuit has an input end, an output end and a grounding end, the state holding circuit has an input end, an output end, and a grounding end, and the output of the AC to DC circuit terminal, the positive input terminal of the LED light-emitting circuit is connected to the input terminal of the parallel voltage regulator circuit, the output terminal of the parallel voltage regulator circuit, the input terminal of the linear constant current circuit is connected to the input terminal of the light sensing circuit, and the output terminal of the light sensing circuit It is connected to the input end of the state holding circuit, the output end of the state holding circuit is connected to the control end of the linear constant current circuit, the grounding end of the AC to DC circuit, the grounding end of the parallel voltage stabilizing circuit, the grounding end of the state holding circuit, the optical The ground terminal of the sensing circuit is connected with the ground terminal of the linear constant current circuit.
实施例二：如图2和图3所示，一种具有光感应功能的线性恒流LED灯，包括LED发光电路、交流转直流电路、线性恒流电路和光感应电路，LED发光电路具有正输入端和负输入端，交流转直流电路具有火线输入端、零线输入端、输出端和接地端，线性恒流电路具有输入端、控制端、输出端和接地端，光感应电路具有输入端、输出端和接地端，交流转直流电路的火线输入端用于接市电的火线，零线输入端用于接市电的零线，LED发光电路的负输入端和线性恒流电路的输出端连接，线性恒流LED灯还包括并联型稳压电路和状态保持电路，并联型稳压电路具有输入端、输出端和接地端，状态保持电路具有输入端、输出端和接地端，交流转直流电路的输出端、LED发光电路的正输入端和并联型稳压电路的输入端连接，并联型稳压电路的输出端、线性恒流电路的输入端和光感应电路的输入端连接，光感应电路的输出端和状态保持电路的输入端连接，状态保持电路的输出端与线性恒流电路的控制端连接，交流转直流电路的接地端、并联型稳压电路的接地端、状态保持电路的接地端、光感应电路的接地端和线性恒流电路的接地端连接。Embodiment 2: As shown in Figure 2 and Figure 3, a linear constant current LED lamp with light sensing function, including LED lighting circuit, AC to DC circuit, linear constant current circuit and light sensing circuit, LED lighting circuit has a positive input terminal and negative input terminal, the AC to DC circuit has a fire wire input terminal, a neutral line input terminal, an output terminal and a ground terminal, a linear constant current circuit has an input terminal, a control terminal, an output terminal and a ground terminal, and a light sensing circuit has an input terminal, Output terminal and ground terminal, the live wire input terminal of the AC to DC circuit is used to connect the live wire of the mains, the neutral line input terminal is used to connect the neutral line of the mains power, the negative input terminal of the LED lighting circuit and the output terminal of the linear constant current circuit Connection, the linear constant current LED lamp also includes a parallel voltage regulator circuit and a state holding circuit, the parallel voltage regulator circuit has an input terminal, an output terminal and a ground terminal, and the state maintenance circuit has an input terminal, an output terminal and a ground terminal, AC to DC The output terminal of the circuit, the positive input terminal of the LED light-emitting circuit are connected to the input terminal of the parallel voltage stabilizing circuit, the output terminal of the parallel voltage stabilizing circuit, the input terminal of the linear constant current circuit are connected to the input terminal of the light sensing circuit, and the light sensing circuit The output end of the state holding circuit is connected to the input end of the state holding circuit, the output end of the state holding circuit is connected to the control end of the linear constant current circuit, the grounding end of the AC to DC circuit, the grounding end of the parallel voltage stabilizing circuit, and the grounding end of the state holding circuit The terminal, the ground terminal of the light sensing circuit and the ground terminal of the linear constant current circuit are connected.
本实施例中，并联型稳压电路包括第一电阻R1、第一电容C1和第一二极管D1，第一电容C1为电解电容，第一二极管D1为稳压二极管，第一电阻R1的一端为并联型稳压电路的输入端，第一电阻R1的另一端、第一二极管D1的负极和第一电容C1的正极连接且其连接端为并联型稳压电路的输出端，第一二极管D1的正极和第一电容C1的负极连接且其连接端为并联型稳压电路的接地端。In this embodiment, the parallel voltage stabilizing circuit includes a first resistor R1, a first capacitor C1 and a first diode D1, the first capacitor C1 is an electrolytic capacitor, the first diode D1 is a voltage stabilizing diode, and the first resistor One end of R1 is the input end of the parallel voltage stabilizing circuit, the other end of the first resistor R1, the negative pole of the first diode D1 is connected to the positive pole of the first capacitor C1, and its connection end is the output end of the parallel voltage stabilizing circuit , the anode of the first diode D1 is connected to the cathode of the first capacitor C1 and its connection terminal is the ground terminal of the parallel-connected voltage stabilizing circuit.
本实施例中，光感应电路包括第二电阻R2和光敏三极管Q1，第二电阻R2的一端为光感应电路的输入端，第二电阻R2的另一端和光敏三极管Q1的集电极连接且连接端为光感应电路的输出端，光敏三极管Q1的发射极为光感应电路的接地端。In this embodiment, the light sensing circuit includes a second resistor R2 and a phototransistor Q1, one end of the second resistor R2 is the input end of the light sensing circuit, and the other end of the second resistor R2 is connected to the collector of the phototransistor Q1 and connected to It is the output end of the light sensing circuit, and the emitter of the phototransistor Q1 is the ground end of the light sensing circuit.
本实施例中，状态保持电路包括第二二极管D2、第二电容C2和第三电阻R3，第二电容C2为普通电容，第二二极管D2为整流二极管，第二二极管D2的正极为状态保持电路的输入端，第二二极管D2的负极、第二电容C2的一端和第三电阻R3的一端连接且其连接端为状态保持电路的输出端，第二电容C2的另一端和第三电阻R3的另一端连接且其连接端为状态保持电路的接地端。In this embodiment, the state holding circuit includes a second diode D2, a second capacitor C2 and a third resistor R3, the second capacitor C2 is an ordinary capacitor, the second diode D2 is a rectifier diode, and the second diode D2 The positive pole of the state holding circuit is the input end of the state holding circuit, the negative pole of the second diode D2, one end of the second capacitor C2 and one end of the third resistor R3 are connected and the connection end is the output end of the state holding circuit, the second capacitor C2 The other end is connected to the other end of the third resistor R3 and the connected end is the ground end of the state holding circuit.
本实施例中，线性恒流电路包括型号为SM2083的恒流芯片U1和第四电阻R4，恒流芯片U1的第1脚为线性恒流电路的输入端，恒流芯片U1的第8脚为线性恒流电路的输出端，恒流芯片U1的第4脚为线性恒流电路的控制端，恒流芯片U1的第5脚和第四电阻R4的一端连接，第四电阻R4的另一端和恒流芯片U1的第3脚连接且其连接端为线性恒流电路的接地端。In this embodiment, the linear constant current circuit includes a constant current chip U1 of model SM2083 and a fourth resistor R4, the first pin of the constant current chip U1 is the input end of the linear constant current circuit, and the eighth pin of the constant current chip U1 is The output terminal of the linear constant current circuit, the 4th pin of the constant current chip U1 is the control terminal of the linear constant current circuit, the 5th pin of the constant current chip U1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to The third pin of the constant current chip U1 is connected and its connection end is the ground end of the linear constant current circuit.
本实施例中，交流转直流电路包括全桥整流桥Db和第三电容C3，第三电容C3为电解电容，全桥整流桥Db的第1脚为交流转直流电路的火线输入端，全桥整流桥Db的第3脚为交流转直流电路的零线输入端，全桥整流桥Db的第2脚和第三电容C3的正极连接且其连接端为交流转直流电路的输出端，全桥整流桥Db的第4脚和第三电容C3的负极连接且其连接端为交流转直流电路的接地端。In this embodiment, the AC-to-DC circuit includes a full-bridge rectifier bridge Db and a third capacitor C3, the third capacitor C3 is an electrolytic capacitor, the first pin of the full-bridge rectifier bridge Db is the live wire input end of the AC-to-DC circuit, and the full bridge The third pin of the rectifier bridge Db is the neutral line input end of the AC-to-DC circuit, the second pin of the full-bridge rectifier bridge Db is connected to the positive pole of the third capacitor C3 and its connection end is the output end of the AC-to-DC circuit, the full bridge The fourth pin of the rectifier bridge Db is connected to the negative pole of the third capacitor C3 and its connection end is the ground end of the AC-to-DC circuit.
本实施例中，LED发光电路由n个发光二极管(N1-Nn)串联形成，n为大于等于1的整数。In this embodiment, the LED lighting circuit is formed by connecting n light emitting diodes (N1-Nn) in series, where n is an integer greater than or equal to 1.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820646969.XUCN208175046U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with light-sensing function |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820646969.XUCN208175046U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with light-sensing function |
| Publication Number | Publication Date |
|---|---|
| CN208175046Utrue CN208175046U (en) | 2018-11-30 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820646969.XUActiveCN208175046U (en) | 2018-05-03 | 2018-05-03 | A kind of linear constant current LED light with light-sensing function |
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| CN (1) | CN208175046U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111031636A (en)* | 2019-12-31 | 2020-04-17 | 鹰潭阳光照明有限公司 | Light-operated LED lamp circuit capable of setting working mode |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111031636A (en)* | 2019-12-31 | 2020-04-17 | 鹰潭阳光照明有限公司 | Light-operated LED lamp circuit capable of setting working mode |
| CN111031636B (en)* | 2019-12-31 | 2022-05-27 | 鹰潭阳光照明有限公司 | Light-operated LED lamp circuit capable of setting working mode |
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| TR01 | Transfer of patent right | Effective date of registration:20200628 Address after:322009 NO.901, Longqi Road, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province Patentee after:Harmony Mingxin (Yiwu) Photoelectric Technology Co.,Ltd. Address before:312071 Zhejiang province Shaoxing Paojiang Industrial Zone No. 308 North Road in the robe Patentee before:SUNNY WORLD (SHAOXING) GREEN LIGHTING Co.,Ltd. | |
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| CP03 | Change of name, title or address | Address after:322009 No. 901, Longqi Road, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province Patentee after:Yiwu Mulinsen Intelligent Lighting Co.,Ltd. Country or region after:China Address before:322009 No. 901, Longqi Road, Suxi Town, Yiwu City, Jinhua City, Zhejiang Province Patentee before:Harmony Mingxin (Yiwu) Photoelectric Technology Co.,Ltd. Country or region before:China |