CN102999149A - Electronic system and power management method - Google Patents

Abstract

The invention relates to an electronic system and a power management method, wherein the electronic system comprises: an input/output expander for outputting power to a peripheral device via at least one output terminal; at least one electronic device coupled to the I/O extender in daisy chain fashion, wherein the I/O extender communicates with the electronic device using a transmission protocol compatible with the Reben interface; and a control module, which adjusts the instant power of the electronic device and the peripheral device according to the instant power of the electronic device, the instant power of the peripheral device, a maximum output power and a plurality of parameters, so as to prevent the power output by the input/output expander from being larger than the maximum output power. The invention can adjust the instant power of the electronic device and the peripheral device to avoid that the power output by the input/output expander is larger than the maximum output power when connecting another electronic device to the electronic device, thereby increasing the stability of the system.

Description

Translated fromChinese

电子系统与电源管理方法Electronic systems and power management methods

技术领域technical field

本发明涉及电子系统，尤其涉及一种具有高速传输接口的电子系统。The invention relates to an electronic system, in particular to an electronic system with a high-speed transmission interface.

背景技术Background technique

近年来，随着电脑与信息产业的蓬勃发展，各种新的外围设备可轻易的连结上个人电脑与笔记本电脑等等，其中包含了网际网络和外接式储存装置等。然而这些外围装置的电源管理不是很理想，因此急需一种电源管理方法与电子系统，来增加主机与外围装置的稳定性，同时减少外围装置的耗电量。In recent years, with the vigorous development of the computer and information industries, various new peripheral devices can be easily connected to personal computers and notebook computers, etc., including the Internet and external storage devices. However, the power management of these peripheral devices is not very ideal, so a power management method and electronic system are urgently needed to increase the stability of the host and peripheral devices and reduce the power consumption of the peripheral devices.

发明内容Contents of the invention

有鉴于此，为了克服现有技术的缺陷，本发明提供一种电子系统，包括：一输入输出扩展器，通过至少一输出端输出电源至一外围装置；至少一电子装置，用以菊链式耦接至输入输出扩展器，其中输入输出扩展器与电子装置以相容于雷奔(Thunderbolt，or Light Peak)接口的传输协议进行通信；以及一控制模块，根据电子装置的即时功率、外围装置的即时功率、一最大输出功率和多个参数，调整电子装置和外围装置的即时功率，以避免输入输出扩展器所输出的功率大于最大输出功率。In view of this, in order to overcome the defects of the prior art, the present invention provides an electronic system, including: an input-output expander, which outputs power to a peripheral device through at least one output terminal; at least one electronic device, used for daisy chain Coupled to the input-output expander, wherein the input-output expander and the electronic device communicate with the transmission protocol compatible with the Thunderbolt (or Light Peak) interface; and a control module, according to the real-time power of the electronic device, the peripheral device The real-time power, a maximum output power and multiple parameters are used to adjust the real-time power of the electronic device and the peripheral device, so as to prevent the output power of the input-output expander from being greater than the maximum output power.

本发明还提供一种电源管理方法，适用于具有一输入输出扩展器与至少一电子装置的一电子系统，输入输出扩展器与电子装置以菊链式耦接，并且输入输出扩展器耦接至至少一外围装置，电源管理方法包括：检测电子装置的即时功率和外围装置的即时功率，其中输入输出扩展器与电子装置以相容于雷奔接口的传输协议进行通信；以及根据电子装置的即时功率、外围装置的即时功率、一最大输出功率和多个参数，调整电子装置与外围装置的即时功率，以避免输入输出扩展器所输出的功率大于最大输出功率。The present invention also provides a power management method suitable for an electronic system having an input-output expander and at least one electronic device, the input-output expander and the electronic device are daisy-chain coupled, and the input-output expander is coupled to At least one peripheral device, the power management method includes: detecting the real-time power of the electronic device and the real-time power of the peripheral device, wherein the input-output expander communicates with the electronic device with a transmission protocol compatible with the Rabbit interface; and according to the real-time power of the electronic device The power, the real-time power of the peripheral device, a maximum output power and multiple parameters are used to adjust the real-time power of the electronic device and the peripheral device, so as to prevent the output power of the input-output expander from being greater than the maximum output power.

本发明可调整电子装置和外围装置的即时功率，以避免当连接另一电子装置至上述电子装置时，输入输出扩展器所输出的功率大于最大输出功率，增加系统的稳定性。The present invention can adjust the real-time power of the electronic device and the peripheral device, so as to avoid that when another electronic device is connected to the above-mentioned electronic device, the output power of the input-output expander is greater than the maximum output power, thereby increasing the stability of the system.

为了让本发明的上述和其他目的、特征、和优点能更明显易懂，下文特举一较佳实施例，并配合附图，作详细说明如下。In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment will be described in detail below together with the accompanying drawings.

附图说明Description of drawings

图1是本发明的电子系统的一实施例，用以执行电源管理方法；FIG. 1 is an embodiment of an electronic system of the present invention, which is used to execute a power management method;

图2是本发明的电子系统的一实施例；Fig. 2 is an embodiment of the electronic system of the present invention;

图3是本发明的雷奔接口的一实施例；以及Fig. 3 is an embodiment of the Leiben interface of the present invention; and

图4是系本发明的电源管理方法的一流程图。FIG. 4 is a flow chart of the power management method of the present invention.

其中，附图标记说明如下：Wherein, the reference signs are explained as follows:

100：电子系统；100: electronic system;

M1～M5：电子装置；M1～M5: electronic device;

CM：控制模块；CM: control module;

120：主机；120: host;

EP：输入输出扩展器；EP: input and output expander;

PS1：电源供应器；PS1: power supply;

PS2：外接电源；PS2: external power supply;

P1～P9：输出端；P1～P9: output terminals;

TB：雷奔接口；TB: Thunderbolt interface;

S1～S9：功率检测器；S1～S9: Power detectors;

I1：输入端；I1: input terminal;

SW1A～SW4A、SW1B～SW4B、SW5～SW14：切换单元。SW1A～SW4A, SW1B～SW4B, SW5～SW14: switching units.

具体实施方式Detailed ways

图1是本发明的电子系统的一实施例，用以执行电源管理方法。如图1所示，电子系统100包括一输入输出扩展器(I/O Expander)EP、电子装置M1～M5与一控制模块(Control module)CM。在本发明实施例中，控制模块CM设置在输入输出扩展器EP中。在某些实施例中，控制模块CM可设置在电子装置M1～M5之一，或设置在耦接至电子系统100的一主机120，但不限于此。电子装置M1～M5以一方向叠置于输入输出扩展器EP，并且电子装置M1～M5和输入输出扩展器EP具有高速传输接口，例如雷奔接口，使得电子装置M1～M5和输入输出扩展器EP以相容于高速传输接口的传输协议与主机120进行通信，而电子装置M1～M5之间是以菊链式(Daisy-Chain)耦接。需说明的是，电子装置的数量及种类并不限于此，在本发明实施例中，以雷奔接口为例，但不限于此，任何具有高速传输接口(例如5Gbps以上)的电子装置都可以是本发明的输入输出扩展器EP与电子装置M1～M5。输入输出扩展器EP是由电源供应器PS1供应电源，并且输入输出扩展器EP将电源供应器PS1所提供的电源输出至电子装置M1～M5或外围装置。主机120是由外接电源PS2所供应电源，或者由主机内部的电池供应电源。FIG. 1 is an embodiment of an electronic system of the present invention for implementing a power management method. As shown in FIG. 1 , theelectronic system 100 includes an I/O expander (I/O Expander) EP, electronic devices M1-M5 and a control module (Control module) CM. In the embodiment of the present invention, the control module CM is set in the input-output expander EP. In some embodiments, the control module CM may be disposed on one of the electronic devices M1 - M5 , or disposed on ahost 120 coupled to theelectronic system 100 , but is not limited thereto. The electronic devices M1-M5 are stacked on the input-output expander EP in one direction, and the electronic devices M1-M5 and the input-output expander EP have a high-speed transmission interface, such as a Thunderbolt interface, so that the electronic devices M1-M5 and the input-output expander The EP communicates with thehost 120 through a transmission protocol compatible with the high-speed transmission interface, and the electronic devices M1 - M5 are coupled in a daisy-chain manner. It should be noted that the number and types of electronic devices are not limited thereto. In the embodiment of the present invention, the Thunderbolt interface is used as an example, but it is not limited thereto. Any electronic device with a high-speed transmission interface (for example, above 5Gbps) can It is the input/output expander EP and the electronic devices M1-M5 of the present invention. The input-output expander EP is powered by the power supply PS1, and the input-output expander EP outputs the power provided by the power supply PS1 to the electronic devices M1-M5 or peripheral devices. Thehost 120 is powered by an external power supply PS2, or powered by a battery inside the host.

图2是本发明的电子系统的一实施例。如图2所示，输入输出扩展器EP具有一输入端I1与输出端P1～P5。详细而言，输入端I1耦接至电源供应器PS1，用以从电源供应器PS1接收电源。输入输出扩展器EP通过输出端P1～P4输出电源至外围装置，其中外围装置为不具有雷奔接口的电子装置。举例来说，输出端P1、P2为通用序列总线(Universal Serial Bus，USB)接口，输出端P3为高清晰度多媒体接口(High Definition Multimedia Interface，HDMI)，输出端P4为网络接口，输出端的数量与输出端的种类仅说明之用，但不限于此。切换单元SW1A、SW1B可选择性由主机120和/或由输入输出扩展器EP提供电源或者不提供至输出端P1，切换单元SW2A～SW4A、SW2B～SW4B也具有相同功能，因此不再赘述。输入输出扩展器EP通过输出端P5提供电源至电子装置M1～M5。每个电子装置M1～M5具有对应的输入端，用以接收来自输入输出扩展器EP的电源。FIG. 2 is an embodiment of the electronic system of the present invention. As shown in FIG. 2 , the input-output expander EP has an input terminal I1 and output terminals P1 - P5 . In detail, the input terminal I1 is coupled to the power supply PS1 for receiving power from the power supply PS1. The input-output expander EP outputs power to the peripheral devices through the output terminals P1-P4, wherein the peripheral devices are electronic devices without a Thunderbolt interface. For example, the output terminals P1 and P2 are Universal Serial Bus (USB) interfaces, the output terminal P3 is a High Definition Multimedia Interface (High Definition Multimedia Interface, HDMI), and the output terminal P4 is a network interface. The number of output terminals The types of output terminals are for illustration only, but not limited thereto. The switching units SW1A, SW1B can be selectively powered by thehost 120 and/or the input/output expander EP or not supplied to the output terminal P1. The switching units SW2A-SW4A, SW2B-SW4B also have the same function, so it will not be described again. The input-output expander EP provides power to the electronic devices M1-M5 through the output terminal P5. Each of the electronic devices M1 - M5 has a corresponding input terminal for receiving power from the input-output expander EP.

功率检测器S1～S9用以检测外围装置与电子装置M1～M5的即时功率，切换单元SW5用以选择性提供电源或停止提供电源至输入输出扩展器EP，切换单元SW6、SW8～SW12用以选择性提供电源或停止提供电源至电子装置M1～M5。当一个新的电子装置连接至最后一个电子装置时，控制模块CM根据目前电子装置(例如电子装置M1～M5)的即时功率、外围装置的即时功率、一最大输出功率和多个参数，调整电子装置和外围装置的即时功率，以避免输入输出扩展器EP所输出的功率大于最大输出功率。The power detectors S1-S9 are used to detect the real-time power of peripheral devices and electronic devices M1-M5, the switch unit SW5 is used to selectively provide power or stop supplying power to the input and output expander EP, and the switch units SW6, SW8-SW12 are used to Selectively provide power or stop supplying power to the electronic devices M1-M5. When a new electronic device is connected to the last electronic device, the control module CM adjusts the electronic The real-time power of the device and the peripheral device, so as to avoid the output power of the input-output expander EP being greater than the maximum output power.

假设电源供应器PS1提供给输入输出扩展器EP最大功率为100瓦，因此输入输出扩展器EP的最大输出功率接近100瓦(以下假设最大输出功率为100瓦)。当电子装置M5连接至电子装置M4时，控制模块CM会检测电子装置M5是何种类电子装置、电子装置M5的最大功率和最小功率，并且根据电子装置M1～M4的即时功率、外围装置的即时功率、最大输出功率(例如100瓦)和多个参数，调整电子装置M1～M5和外围装置的即时功率，以避免输入输出扩展器EP所输出的功率大于最大输出功率(例如100瓦)。Assume that the maximum power provided by the power supply PS1 to the I/O expander EP is 100 watts, so the maximum output power of the I/O expander EP is close to 100 watts (the maximum output power is assumed to be 100 watts below). When the electronic device M5 is connected to the electronic device M4, the control module CM will detect what type of electronic device M5 is, the maximum power and the minimum power of the electronic device M5, and according to the real-time power of the electronic devices M1-M4 and the real-time Power, maximum output power (eg 100 watts) and multiple parameters, adjust the instant power of the electronic devices M1-M5 and peripheral devices to avoid the output power of the input/output expander EP being greater than the maximum output power (eg 100 watts).

在本发明实施例中，参数包括停止供电的优先顺序、所有电子装置(例如电子装置M1～M5)与所有外围装置的使用率、所有电子装置(例如电子装置M1～M5)和所有外围装置的最大功率和最小功率，并且根据这些参数选择性停止供电或降频电子装置M1～M5或外围装置，以避免输入输出扩展器EP所输出的功率大于最大输出功率。In the embodiment of the present invention, the parameters include the order of priority for stopping power supply, the usage rates of all electronic devices (such as electronic devices M1-M5) and all peripheral devices, and the usage rates of all electronic devices (such as electronic devices M1-M5) and all peripheral devices. Maximum power and minimum power, and selectively stop power supply or reduce the frequency of electronic devices M1-M5 or peripheral devices according to these parameters, so as to avoid the output power of the input-output expander EP being greater than the maximum output power.

举例来说，当电子装置M5连接至电子装置M4时，控制模块CM检测到电子装置M5的最小功率为10瓦，由于电子装置M1～M4和外围装置的即时功率的总和为95瓦，假如电子装置M5加入电子系统100时，会导致电子装置M1～M4或外围装置不正常地运行。控制模块CM可根据优先顺序(例如电子装置M1优先被停止供应电源)停止供应电源至电子装置M1，使得电子装置M5与其他电子装置得以正常地运行。For example, when the electronic device M5 is connected to the electronic device M4, the control module CM detects that the minimum power of the electronic device M5 is 10 watts, since the sum of the instant power of the electronic devices M1-M4 and peripheral devices is 95 watts, if the electronic device When the device M5 is added to theelectronic system 100, it will cause abnormal operation of the electronic devices M1-M4 or peripheral devices. The control module CM can stop supplying power to the electronic device M1 according to a priority order (for example, the electronic device M1 is stopped from supplying power first), so that the electronic device M5 and other electronic devices can operate normally.

在本发明实施例中，控制模块CM也可根据电子装置M1～M4和外围装置的使用率来选择停止何者装置。举例来说，假设电子装置M2一直处于待命状态，当电子装置M5连接至电子装置M4时，控制模块CM停止提供电源至电子装置M2，使得电子装置M1、M3～M5和外围装置得以正常地运行。In the embodiment of the present invention, the control module CM may also select which device to stop according to the usage rates of the electronic devices M1 - M4 and peripheral devices. For example, assuming that the electronic device M2 is always on standby, when the electronic device M5 is connected to the electronic device M4, the control module CM stops providing power to the electronic device M2, so that the electronic devices M1, M3-M5 and peripheral devices can operate normally .

在本发明实施例中，控制模块CM也可根据电子装置M1～M4和外围装置的最大功率或最小功率来选择停止何者装置。举例来说，在电子装置M1～M4之中，电子装置M3具有最大的最小功率，控制模块CM停止供应电源至电子装置M3将减少很多电源消耗，因此当电子装置M5连接至电子装置M4时，控制模块CM停止提供电源至电子装置M3，使得电子装置M1～M2、M4～M5和外围装置得以正常运行。In the embodiment of the present invention, the control module CM can also select which device to stop according to the maximum or minimum power of the electronic devices M1 - M4 and peripheral devices. For example, among the electronic devices M1-M4, the electronic device M3 has the largest minimum power, and the control module CM stops supplying power to the electronic device M3, which will reduce a lot of power consumption. Therefore, when the electronic device M5 is connected to the electronic device M4, The control module CM stops providing power to the electronic device M3, so that the electronic devices M1-M2, M4-M5 and peripheral devices can operate normally.

在某些实施例中，当电子装置M5连接至电子装置M4时，控制模块CM也可减少电子装置M1～M4的至少一个的效能。举例来说，电子装置M2、M3和M4分别为光盘机、硬盘和显示卡，其中显示卡具有图形处理器(GraphicProcessing Unit，GPU)，控制模块CM可降低电子装置M2的读取速度、和/或降低电子装置M3的转速、和/或降低电子装置M4的操作频率，以便减少电子装置M2、M3或M4的耗电量，使得电子装置M5得以正常操作。In some embodiments, when the electronic device M5 is connected to the electronic device M4, the control module CM can also reduce the performance of at least one of the electronic devices M1-M4. For example, the electronic devices M2, M3 and M4 are optical disc drives, hard disks and display cards respectively, wherein the display card has a graphics processing unit (Graphic Processing Unit, GPU), and the control module CM can reduce the reading speed of the electronic device M2, and/or Or reduce the rotation speed of the electronic device M3, and/or reduce the operating frequency of the electronic device M4, so as to reduce the power consumption of the electronic device M2, M3 or M4, so that the electronic device M5 can operate normally.

在某些实施例中，控制模块CM也判断主机120的图形处理器与电子装置M4的图形处理器何者具有较高的效能，以便决定对何者图形处理器停止提供电源。此外，主机120的图形处理器与电子装置M4的图形处理器也可同时运行，例如主机120的图形处理器执行奇数画框周期(frame)，电子装置M4的图形处理器执行偶数画框周期，但不限于此。In some embodiments, the control module CM also determines which of the graphics processor of thehost 120 and the graphics processor of the electronic device M4 has higher performance, so as to decide which graphics processor to stop providing power to. In addition, the graphics processor of thehost 120 and the graphics processor of the electronic device M4 can also run at the same time, for example, the graphics processor of thehost 120 executes an odd-numbered frame cycle (frame), and the graphics processor of the electronic device M4 executes an even-numbered frame cycle, But not limited to this.

图3是本发明的雷奔接口的一实施例，其中雷奔接口TB设置在主机120。如图3所示，雷奔接口TB的输出端P7耦接至输入输出扩展器EP的输出端P6，雷奔接口TB的输出端P9接收来自主机120的电源，用以提供电源至电子装置M1～M5、外围装置和输入输出扩展器EP。在本发明实施例中，当电源供应器PS1提供电源至输入输出扩展器EP时，雷奔接口TB通过切换单元SW13停止提供电源至电子装置M1～M5、外围装置和输入输出扩展器EP。在某些实施例中，当电源供应器PS1提供电源至输入输出扩展器EP时，雷奔接口TB也同时提供电源至电子装置M1～M5、外围装置和输入输出扩展器EP。举例来说，电源供应器PS1所提供100瓦的电源至输入输出扩展器EP，雷奔接口TB也提供10瓦的电源给输入输出扩展器EP，因此输入输出扩展器EP可提供110瓦的电源至电子装置M1～M5或外围装置，因此输入输出扩展器EP的最大输出功率变成110瓦。在某些实施例中，当主机120的一外接电源PS2失能时，输入输出扩展器EP可通过切换单元SW7和雷奔接口TB的切换单元SW14提供电源(例如10瓦)至主机120，使得输出端P8输出电源至主机120，以便对主机120的电池进行充电。FIG. 3 is an embodiment of the Thunderbolt interface of the present invention, wherein the Thunderbolt interface TB is set on thehost 120 . As shown in FIG. 3 , the output terminal P7 of the Thunderbolt interface TB is coupled to the output terminal P6 of the input-output expander EP, and the output terminal P9 of the Thunderbolt interface TB receives power from thehost 120 to provide power to the electronic device M1 ~ M5, peripheral devices and input and output expander EP. In the embodiment of the present invention, when the power supply PS1 provides power to the I/O expander EP, the Thunderbolt interface TB stops providing power to the electronic devices M1-M5, peripheral devices and the I/O expander EP through the switching unit SW13. In some embodiments, when the power supply PS1 provides power to the I/O expander EP, the Thunderbolt interface TB also provides power to the electronic devices M1 - M5 , peripheral devices and the I/O expander EP at the same time. For example, the power supply PS1 provides 100 watts of power to the input and output expander EP, and the Thunderbolt interface TB also provides 10 watts of power to the input and output expander EP, so the input and output expander EP can provide 110 watts of power To the electronic devices M1-M5 or peripheral devices, the maximum output power of the input-output expander EP becomes 110 watts. In some embodiments, when an external power supply PS2 of thehost 120 fails, the input and output expander EP can provide power (for example, 10 watts) to thehost 120 through the switch unit SW7 and the switch unit SW14 of the Thunderbolt interface TB, so that The output terminal P8 outputs power to thehost 120 so as to charge the battery of thehost 120 .

在本发明实施例中，主机120可以是各种电子系统样态(configuration)，例如，手持式设备(hand-held devices)、便携式设备(portable devices)、个人数字助理(personal digital assistant；PDA)多处理器系统、以微处理器为基础或可程序化的消费性电子产品(microprocessor-based or programmable consumerelectronics)、网络电脑、迷你电脑、大型主机以及类似的设备，但不限于此。控制模块CM可设置在一单一中央处理单元(central-processing unit；CPU)或者是关联于平行运算环境(parallel processing environment)的多个平行处理单元内，用以执行电源管理方法。In the embodiment of the present invention, thehost 120 can be various electronic system configurations, for example, hand-held devices (hand-held devices), portable devices (portable devices), personal digital assistants (personal digital assistant; PDA) Multiprocessor systems, microprocessor-based or programmable consumer electronics, network computers, minicomputers, mainframes, and similar devices, but not limited to. The control module CM can be disposed in a single central-processing unit (CPU) or a plurality of parallel processing units associated with a parallel processing environment (parallel processing environment) for executing the power management method.

图4是本发明的电源管理方法的一流程图，适用于具有输入输出扩展器EP与至少一电子装置(例如电子装置M1～M5)的一电子系统100，其中输入输出扩展器EP与电子装置M1～M5以菊链式耦接。如图4所示，电源管理方法包括下列步骤。4 is a flowchart of the power management method of the present invention, which is suitable for anelectronic system 100 having an input-output expander EP and at least one electronic device (such as electronic devices M1-M5), wherein the input-output expander EP and the electronic device M1-M5 are coupled in a daisy-chain manner. As shown in FIG. 4, the power management method includes the following steps.

于步骤S41，通过输入输出扩展器EP提供电源至电子装置M1～M5和/或耦接至输入输出扩展器EP的至少一外围装置。于步骤S42，检测电子装置M1～M5的即时功率和外围装置的即时功率，其中输入输出扩展器EP与电子装置M1～M5以相容于雷奔接口的传输协议进行通信。于步骤S43，根据电子装置M1～M5的即时功率、外围装置的即时功率、最大输出功率和多个参数，调整电子装置M1～M5与外围装置的即时功率，以避免输入输出扩展器EP所输出的功率大于上述最大输出功率。于步骤S44，以相容于雷奔接口的传输协议执行输入输出扩展器EP与主机120之间的通信，其中当主机120的外接电源PS2失能时，通过输入输出扩展器EP提供电源至主机120。In step S41 , provide power to the electronic devices M1 - M5 and/or at least one peripheral device coupled to the I/O expander EP through the I/O expander EP. In step S42, the real-time power of the electronic devices M1-M5 and the real-time power of the peripheral devices are detected, wherein the input-output expander EP communicates with the electronic devices M1-M5 using a transmission protocol compatible with the Thunderbolt interface. In step S43, adjust the real-time power of the electronic devices M1-M5 and the peripheral devices according to the real-time power of the electronic devices M1-M5, the real-time power of the peripheral devices, the maximum output power and multiple parameters, so as to avoid the output of the input-output expander EP. The power is greater than the above maximum output power. In step S44, the communication between the input and output expander EP and thehost 120 is performed with a transmission protocol compatible with the Raben interface, wherein when the external power supply PS2 of thehost 120 fails, the input and output expander EP provides power to thehost 120.

详细而言，最大输出功率为输入输出扩展器EP所能输出的最大功率。举例来说，当只有主机120提供电源(例如10瓦)至输入输出扩展器EP时，输入输出扩展器EP的最大输出功率为10瓦。当只有电源供应器PS1提供电源(例如100瓦)至输入输出扩展器EP时，输入输出扩展器EP的最大输出功率为100瓦。当主机120和电源供应器PS1同时提供电源至输入输出扩展器EP时，输入输出扩展器EP的最大输出功率为110瓦。主机120与电源供应器PS1所提供的电源(10瓦和100瓦)仅为说明之用，但不限于此。In detail, the maximum output power is the maximum power that the input-output expander EP can output. For example, when only thehost 120 provides power (for example, 10 watts) to the I/O expander EP, the maximum output power of the I/O expander EP is 10 watts. When only the power supply PS1 provides power (for example, 100W) to the I/O expander EP, the maximum output power of the I/O expander EP is 100W. When thehost 120 and the power supply PS1 simultaneously provide power to the input-output expander EP, the maximum output power of the input-output expander EP is 110 watts. The power supplies (10W and 100W) provided by thehost 120 and the power supply PS1 are for illustration purposes only, but not limited thereto.

本发明的电子系统100与电源管理方法可根据电子装置的即时功率、上述外围装置的即时功率、一最大输出功率和多个参数，调整电子装置和外围装置的即时功率，以避免当连接另一电子装置至上述电子装置时，输入输出扩展器EP所输出的功率大于最大输出功率，增加系统的稳定性。Theelectronic system 100 and the power management method of the present invention can adjust the real-time power of the electronic device and the peripheral device according to the real-time power of the electronic device, the real-time power of the above-mentioned peripheral device, a maximum output power and multiple parameters, so as to avoid When the electronic device connects to the above-mentioned electronic device, the output power of the input-output expander EP is greater than the maximum output power, which increases the stability of the system.

以上叙述许多实施例的特征，使所属技术领域中普通技术人员能够清楚理解本说明书的形态。所属技术领域中普通技术人员能够理解其可利用本发明揭示内容为基础以设计或更动其他工艺及结构而完成相同于上述实施例的目的和/或达到相同于上述实施例的优点。所属技术领域中普通技术人员也能够理解不脱离本发明的精神和范围的等效构造可在不脱离本发明的精神和范围内作任意的更动、替代与润饰。The features of many embodiments are described above, so that those skilled in the art can clearly understand the form of this specification. Those of ordinary skill in the art can understand that they can use the disclosure of the present invention as a basis to design or modify other processes and structures to achieve the same purpose and/or achieve the same advantages as the above embodiment. Those of ordinary skill in the art can also understand that equivalent structures without departing from the spirit and scope of the present invention can make arbitrary changes, substitutions and modifications without departing from the spirit and scope of the present invention.

Claims (15)

1. electronic system comprises:

One input/output expander is by at least one output terminal out-put supply to a peripheral unit;

At least one electronic installation is coupled to above-mentioned input/output expander in order to daisy chained; And

One control module, real-time power, a peak power output and a plurality of parameter according to the real-time power of above-mentioned electronic installation, above-mentioned peripheral unit, adjust the real-time power of above-mentioned electronic installation and above-mentioned peripheral unit, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

2. electronic system as claimed in claim 1, wherein above-mentioned parameter comprises a priority, so that above-mentioned control module stops power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit according to above-mentioned priority selectivity, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

3. electronic system as claimed in claim 1, wherein above-mentioned parameter comprises the utilization rate of above-mentioned electronic installation and above-mentioned peripheral unit, so that above-mentioned control module is according to above-mentioned utilization rate, selectivity is stopped power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

4. electronic system as claimed in claim 1, wherein above-mentioned parameter comprises peak power and the minimum power of above-mentioned electronic installation and above-mentioned peripheral unit, so that above-mentioned control module is according to above-mentioned peak power with above-mentioned minimum power selectivity is stopped power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

5. electronic system as claimed in claim 1, wherein above-mentioned input/output expander communicates to be compatible to run quickly host-host protocol and the main frame of interface of thunder, when an external power supply anergy of above-mentioned main frame, above-mentioned input/output expander provides power supply to above-mentioned main frame.

6. electronic system as claimed in claim 1, wherein above-mentioned control module is arranged in above-mentioned electronic installation, above-mentioned input/output expander or the above-mentioned main frame.

7. electronic system as claimed in claim 1, wherein above-mentioned input/output expander and each above-mentioned electronic installation comprise respectively at least one power detector, in order to detect above-mentioned real-time power.

8. electronic system as claimed in claim 1, wherein above-mentioned electronic installation is stacked and placed on above-mentioned input/output expander with a direction, and communicates to be compatible to run quickly host-host protocol and the above-mentioned main frame of interface of thunder.

9. method for managing power supply, be applicable to have an electronic system of an input/output expander and at least one electronic installation, above-mentioned input/output expander and above-mentioned electronic installation couple with daisy chained, and above-mentioned input/output expander is coupled at least one peripheral unit, and above-mentioned method for managing power supply comprises:

Detect the real-time power of above-mentioned electronic installation and the real-time power of above-mentioned peripheral unit; And

Real-time power, a peak power output and a plurality of parameter according to the real-time power of above-mentioned electronic installation, above-mentioned peripheral unit, adjust the real-time power of above-mentioned electronic installation and above-mentioned peripheral unit, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

10. method for managing power supply as claimed in claim 9 also comprises by above-mentioned input/output expander providing power supply to above-mentioned electronic installation and/or above-mentioned peripheral unit.

11. method for managing power supply as claimed in claim 9, also comprise being compatible to the run quickly host-host protocol of interface of thunder and carry out communicating by letter between above-mentioned input/output expander and the main frame, wherein when an external power supply anergy of above-mentioned main frame, provide power supply to above-mentioned main frame by above-mentioned input/output expander.

12. method for managing power supply as claimed in claim 9, wherein above-mentioned parameter comprises a priority, so that above-mentioned control module stops power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit according to above-mentioned priority selectivity, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

13. method for managing power supply as claimed in claim 9, wherein above-mentioned parameter comprises a utilization rate of above-mentioned electronic installation and above-mentioned peripheral unit, so that above-mentioned control module stops power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit according to above-mentioned utilization rate selectivity, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

14. method for managing power supply as claimed in claim 9, wherein above-mentioned parameter comprises peak power and the minimum power of above-mentioned electronic installation and above-mentioned peripheral unit, so that above-mentioned control module is according to above-mentioned peak power with above-mentioned minimum power selectivity is stopped power supply or the above-mentioned electronic installation of frequency reducing or above-mentioned peripheral unit, to avoid power that above-mentioned input/output expander exported greater than above-mentioned peak power output.

15. method for managing power supply as claimed in claim 9, wherein above-mentioned control module is arranged in above-mentioned electronic installation, above-mentioned input/output expander or the above-mentioned main frame, and above-mentioned electronic installation communicates to be compatible to run quickly host-host protocol and the above-mentioned main frame of interface of thunder.

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