TWI779955B - Ethernet power supply and method of intelligent power saving control the same - Google Patents

Ethernet power supply and method of intelligent power saving control the same Download PDF

Info

Publication number
TWI779955B
TWI779955B TW110145824A TW110145824A TWI779955B TW I779955 B TWI779955 B TW I779955B TW 110145824 A TW110145824 A TW 110145824A TW 110145824 A TW110145824 A TW 110145824A TW I779955 B TWI779955 B TW I779955B
Authority
TW
Taiwan
Prior art keywords
control
bus
power supply
path
signal
Prior art date
Application number
TW110145824A
Other languages
Chinese (zh)
Other versions
TW202324974A (en
Inventor
彭勇維
杜冠賢
劉承恩
Original Assignee
台達電子工業股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 台達電子工業股份有限公司 filed Critical 台達電子工業股份有限公司
Priority to TW110145824A priority Critical patent/TWI779955B/en
Application granted granted Critical
Publication of TWI779955B publication Critical patent/TWI779955B/en
Publication of TW202324974A publication Critical patent/TW202324974A/en

Links

Images

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Power Sources (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

An Ethernet power supply receives a DC voltage through a bus positive pole and a bus negative pole, and is coupled to a load equipment through the bus positive pole. The Ethernet power supply includes a first control module and a second control module, the first control module is used to provide a first control signal through the bus negative pole to confirm whether the load equipment is a valid load, and the second control module is used to turn on or off an electrical coupling relationship between the bus positive pole and the first control module according to whether the load equipment is connected or not.

Description

乙太網路電源供應器及其省電控制方法 Ethernet power supply and its power saving control method

本發明係有關一種乙太網路電源供應器及其控制方法，尤指一種具有省電功能的乙太網路電源供應器及其省電控制方法。 The present invention relates to an Ethernet network power supply and its control method, especially to an Ethernet network power supply with power saving function and its power saving control method.

目前市面上的產品大多因為電源供應器Power Source Equipment(PSE)與負載Power Device(PD)做全時的第一控制訊號溝通，來判斷PSE是否應該供電給正確的負載PD，因此即使負載PD在未接上的情況下，PSE仍會持續送出第一控制訊號做偵測，以致於電力損耗。使得目前乙太網路之電源供應器無法達到現行效率能源規章的要求(Ex：DoE,EC CoC...之類)，其電路架構示意圖如下圖1所示。 Most of the products currently on the market use full-time first control signal communication between the power supply (Power Source Equipment (PSE)) and the load Power Device (PD) to determine whether the PSE should supply power to the correct load PD. Therefore, even if the load PD is When not connected, the PSE will continue to send the first control signal for detection, resulting in power loss. As a result, the current Ethernet power supply cannot meet the requirements of the current energy efficiency regulations (Ex: DoE, EC CoC, etc.), and its circuit structure diagram is shown in Figure 1 below.

此電路設計在實現全時第一控制訊號溝通時，即便在負載PD system已經被抽離的情況下，電源供應器之控制器PSE controller仍會持續送出第一控制訊號消耗電源，因此無法達到現行效率能源規章(Ex：DoE,EC CoC...之類)對於在無負載情況下消耗功率(No Load Power)之規範。 When this circuit design realizes the communication of the first control signal all the time, even if the load PD system has been removed, the controller PSE controller of the power supply will continue to send the first control signal to consume power, so the current situation cannot be achieved. Efficiency energy regulations (Ex: DoE, EC CoC... etc.) regulate the power consumption (No Load Power) under no-load conditions.

所以，如何設計出一種乙太網路電源供應器及其省電控制方法，以在負載設備未接入乙太網路電源供應器時，電源供應器內部之PSE控制器斷電而處於停止工作的狀態，乃為本案創作人所欲行研究的一大課題。 Therefore, how to design an Ethernet power supply and its power-saving control method, so that when the load device is not connected to the Ethernet power supply, the PSE controller inside the power supply is powered off and stops working The status of this case is a major subject of research that the author of this case wants to study.

為了解決上述問題，本發明係提供一種乙太網路電源供應器，以克服習知技術的問題。因此，本發明乙太網路電源供應器，通過總線正極與總線負極耦接負載設備的正極端與負極端並接收直流電壓。乙太網路電源供應器包括第一控制模組與第二控制模組，且第二控制模組包括路徑控制電路、第一控制迴路及第二控制迴路。第一控制模組包括電源端，且另一端耦接總線負極並用以控制乙太網路電源供應器供給負載設備的電力。第二控制模組耦接第一控制模組、總線正極與總線負極。路徑控制電路用以導通或關斷電源端與總線正極的耦接關係。第一控制迴路耦接總線負極與路徑控制電路，且用以根據負極端接入總線負極的接入暫態階段提供第一控制訊號而導通路徑控制電路。第二控制迴路耦接第一控制模組與路徑控制電路，且用以根據第一控制模組提供的第二控制訊號而導通路徑控制電路。其中，總線負極根據負極端接入或抽離總線負極而提供第一控制訊號；第一控制模組提供第二控制訊號；第二控制模組中係用以根據負極端抽離總線負極而關斷路徑控制電路；以及第一控制模組用以根據路徑控制電路的導通而處於上電工作狀態，用以根據路徑控制電路的關斷而處於斷電停止工作狀態。 In order to solve the above problems, the present invention provides an Ethernet power supply to overcome the problems of the prior art. Therefore, the Ethernet power supply of the present invention is coupled to the positive terminal and the negative terminal of the load device through the bus positive terminal and the bus negative terminal and receives the DC voltage. The Ethernet power supply includes a first control module and a second control module, and the second control module includes a path control circuit, a first control loop, and a second control loop. The first control module includes a power supply terminal, and the other terminal is coupled to the negative pole of the bus and is used to control the power supplied by the Ethernet power supply to the load device. The second control module is coupled to the first control module, the positive pole of the bus and the negative pole of the bus. The path control circuit is used to turn on or turn off the coupling relationship between the power supply terminal and the positive pole of the bus. The first control loop is coupled to the bus negative pole and the path control circuit, and is used for providing a first control signal to turn on the path control circuit according to the access transient phase when the negative terminal is connected to the bus negative pole. The second control loop is coupled to the first control module and the path control circuit, and is used to conduct the path control circuit according to the second control signal provided by the first control module. Among them, the negative pole of the bus provides the first control signal according to the negative terminal connected to or withdrawn from the negative pole of the bus; the first control module provides the second control signal; The off-path control circuit; and the first control module is used to be in the power-on working state according to the conduction of the path control circuit, and is used to be in the power-off stop working state according to the off-path control circuit.

為了解決上述問題，本發明係提供一種乙太網路電源供應器，以克服習知技術的問題。因此，本發明乙太網路電源供應器通過總線正極與總線負極耦接負載設備的正極端與負極端並接收直流電壓。乙太網路電源供應器包括第一控制模組與第二控制模組，且第二控制模組包括路徑控制電路、第一控制迴路及第二控制迴路。第一控制模組包括電源端，且另一端耦接總線負極並用以控制乙太網路電源供應器供給負載設備的電力。第二控制模組耦接第一控制模組、總線正極與總線負極，且路徑控制電路用以導通或關斷電源端與總線正極的耦接關係。第一控制迴路耦接總線負極與路徑控制電路，且用以根據負極端接入總線負極而提供第一控制迴路有效訊號觸發路徑控制電路由關斷狀態進入導通狀態，且第一控制模組對應為上電工作狀態。第二控制迴路耦接第一控制模組與路徑控制電路，且用以根據負極端抽離總線負極而提供第二控制迴路無效訊號觸發路徑控制電路由導通狀態進入關斷狀態，且第一控制模組對應為斷電狀態。其中，在第一控制模組對應為上電工作狀態時，第一控制模組根據負極端抽離總線負極使第二控制迴路提供第二控制迴路無效訊號。 In order to solve the above problems, the present invention provides an Ethernet power supply to overcome the problems of the prior art. Therefore, the Ethernet power supply of the present invention is coupled to the positive terminal and the negative terminal of the load device through the bus positive terminal and the bus negative terminal and receives the DC voltage. The Ethernet power supply includes a first control module and a second control module, and the second control module includes a path control circuit, a first control loop, and a second control loop. The first control module includes a power supply terminal, and the other terminal is coupled to the negative pole of the bus and is used to control the power supplied by the Ethernet power supply to the load device. The second control module is coupled to the first control module, the positive pole of the bus and the negative pole of the bus, and the path control circuit is used for turning on or off the coupling relationship between the power supply end and the positive pole of the bus. The first control loop is coupled to the negative pole of the bus and the path control circuit, and is used to provide a valid signal of the first control loop to trigger the path control circuit from the off state to the on state according to the negative terminal connected to the bus negative pole, and the first control module corresponds to It is in the power-on working state. The second control loop is coupled to the first control module and the path control circuit, and is used to provide an invalid signal of the second control loop to trigger the path control circuit to turn from the on state to the off state according to the negative terminal being separated from the bus negative pole, and the first control loop The module corresponds to a power-off state. Wherein, when the first control module corresponds to the power-on working state, the first control module causes the second control loop to provide the second control loop invalid signal according to the negative terminal being pulled away from the bus negative pole.

為了解決上述問題，本發明係提供一種乙太網路電源供應器的省電控制方法，以克服習知技術的問題。因此，本發明乙太網路電源供應器接收直流電壓，且耦接負載設備的正極端與負極端。乙太網路電源供應器包括第一控制模組，且第一控制模組通過總線正極與總線負極接收直流電壓，以及通過總線負極耦接負極端，以通過總線負極提供第一控制訊號確認負載設備是否為有效負載。省電控制方法包括下列步驟：(a)偵測負載設備的接入與否而導通或關斷第一控制模組的電源端與總線正極之間的路徑控制電路。(b)根據負極端接入總線負極而通過第一控制迴路導通路徑控制電路。(c)根據總線負極接地而改由通過 第二控制迴路導通路徑控制電路。(d)根據負極端抽離總線負極而關斷路徑控制電路。 In order to solve the above problems, the present invention provides a power saving control method of an Ethernet power supply to overcome the problems of the prior art. Therefore, the Ethernet power supply of the present invention receives a DC voltage and is coupled to the positive terminal and the negative terminal of the load device. The Ethernet power supply includes a first control module, and the first control module receives a DC voltage through the positive pole of the bus and the negative pole of the bus, and is coupled to the negative terminal through the negative pole of the bus, so as to provide a first control signal through the negative pole of the bus to confirm the load Whether the device is a payload. The power saving control method includes the following steps: (a) detecting whether the load device is connected or not, and turning on or off the path control circuit between the power terminal of the first control module and the positive pole of the bus. (b) Conducting the path control circuit through the first control loop according to the connection of the negative terminal to the negative pole of the bus. (c) According to the grounding of the negative pole of the bus, it is changed to pass through The second control loop conducts the path control circuit. (d) Shutting down the path control circuit according to the negative terminal pulling away from the bus negative terminal.

本發明之主要目的及功效在於，乙太網路電源供應器偵測負載設備是否接入，以決定是否使第一控制模組運作。當負載設備未接入乙太網路電源供應器時，第二控制模組控制第一控制模組斷電而處於停止工作的狀態，以達成節省乙太網路電源供應器電力之消耗，且符合效率能源規章之功效。 The main purpose and function of the present invention is that the Ethernet power supply detects whether the load device is connected to determine whether to enable the first control module to operate. When the load device is not connected to the Ethernet power supply, the second control module controls the first control module to power off and stop working, so as to save the power consumption of the Ethernet power supply, and Efficiency in compliance with energy regulations.

為了能更進一步瞭解本發明為達成預定目的所採取之技術、手段及功效，請參閱以下有關本發明之詳細說明與附圖，相信本發明之目的、特徵與特點，當可由此得一深入且具體之瞭解，然而所附圖式僅提供參考與說明用，並非用來對本發明加以限制者。 In order to further understand the technology, means and effects that the present invention adopts to achieve the predetermined purpose, please refer to the following detailed description and accompanying drawings of the present invention. It is believed that the purpose, characteristics and characteristics of the present invention can be obtained from this in depth and For specific understanding, however, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

L:電源線 L: power cord

100:乙太網路電源供應器 100:Ethernet power supply

100-1:第一端部 100-1: first end

100-2:第二端部 100-2: second end

100-3:第三端部 100-3: the third end

Bp:總線正極 Bp: bus positive

Bn:總線負極 Bn: bus negative

1:第一控制模組 1: The first control module

1-1:電源端 1-1: Power terminal

12:穩壓儲能模組 12: Stabilized energy storage module

14:供電控制器 14: Power supply controller

VDD:電源接腳 VDD: power supply pin

Ec:通訊端 Ec: communication terminal

Ec1:第一接腳 Ec1: the first pin

Ec2:第二接腳 Ec2: the second pin

16:通訊模組 16: Communication module

SWc:開關 SWc: switch

2:第二控制模組 2: The second control module

22:路徑控制電路 22: Path control circuit

222:路徑開關 222: Path switch

224:驅動開關 224: drive switch

24:第一控制迴路 24: The first control loop

SW1:第一開關元件 SW1: first switching element

26:第二控制迴路 26: The second control loop

SW2:第二開關元件 SW2: second switching element

3:資料轉換模組 3: Data conversion module

200:負載設備 200: load equipment

200-1:設備接口 200-1: Device interface

Ep:正極端 Ep: Positive extreme

En:負極端 En: Negative extreme

300:外部裝置 300: external device

Po:輸出電力 Po: output power

Vdc:直流電壓 Vdc: DC voltage

Vcc:供電電壓 Vcc: supply voltage

Vc:端點電壓 Vc: terminal voltage

Vref1:第一參考電壓 Vref1: the first reference voltage

Vref2:第二參考電壓 Vref2: the second reference voltage

Sc1:第一控制訊號 Sc1: the first control signal

Sc2:第二控制訊號 Sc2: Second control signal

Sc3:第三控制訊號 Sc3: The third control signal

Sc4:第四控制訊號 Sc4: The fourth control signal

So:外部訊號 So: external signal

Se1:第一控制迴路有效訊號 Se1: Valid signal of the first control loop

Sn1:第一控制迴路無效訊號 Sn1: invalid signal of the first control loop

Se2:第二控制迴路有效訊號 Se2: Valid signal of the second control loop

Sn2:第二控制迴路無效訊號 Sn2: Second control loop invalid signal

圖1為本發明具有省電功能的乙太網路電源供應器之電路方塊圖；圖2為本發明具有省電功能的乙太網路電源供應器之細部方塊圖；圖3A為本發明第二控制模組第一實施方式之電路方塊圖；圖3B為本發明第二控制模組第二實施方式之電路方塊圖；圖4為本發明第二控制模組第三實施方式之電路方塊圖；及圖5為本發明乙太網路電源供應器的省電控制方法之方法流程圖。 Fig. 1 is a circuit block diagram of the Ethernet power supply with power saving function of the present invention; Fig. 2 is a detailed block diagram of the Ethernet power supply with power saving function of the present invention; Fig. 3A is the first circuit diagram of the present invention 2. The circuit block diagram of the first embodiment of the second control module; FIG. 3B is the circuit block diagram of the second embodiment of the second control module of the present invention; FIG. 4 is the circuit block diagram of the third embodiment of the second control module of the present invention ; and FIG. 5 is a method flow chart of the power saving control method of the Ethernet power supply of the present invention.

茲有關本發明之技術內容及詳細說明，配合圖式說明如下： Hereby, the technical content and detailed description of the present invention are described as follows in conjunction with the drawings:

請參閱圖1為本發明具有省電功能的乙太網路電源供應器之電路方塊圖。乙太網路電源供應器100，用以將直流電壓Vdc提供至負載設備200，以對負載設備200供電。乙太網路電源供應器100包括第一控制模組1、第二控制模組2及資料轉換模組3，且第一控制模組1耦接第二控制模組2與資料轉換模組3。第一控制模組1通過第一端部100-1耦接電源線L(直流電壓Vdc例如但不限於，可以為20V~55V，依照乙太網路電源供應器100的規格而定)，以通過總線正極Bp與總線負極Bn接收由電源線L所提供的直流電壓Vdc而運作。資料轉換模組3通過第二端部100-2耦接外部裝置300(例如但不限於，網路攝影機、中央伺服器)，以接收由外部裝置300所提供的外部訊號So。 Please refer to FIG. 1 which is a circuit block diagram of an Ethernet power supply with power saving function according to the present invention. The Ethernet power supply 100 is used for providing the DC voltage Vdc to the load device 200 to supply power to the load device 200 . The Ethernet power supply 100 includes a first control module 1, a second control module 2 and a data conversion module 3, and the first control module 1 is coupled to the second control module 2 and the data conversion module 3 . The first control module 1 is coupled to the power line L through the first terminal 100-1 (the DC voltage Vdc, for example but not limited to, can be 20V~55V, depending on the specifications of the Ethernet power supply 100), so as to The bus positive pole Bp and the bus negative pole Bn receive the DC voltage Vdc provided by the power line L to operate. The data conversion module 3 is coupled to an external device 300 (such as but not limited to, a network camera, a central server) through the second end 100 - 2 to receive an external signal So provided by the external device 300 .

具體而言，本發明之主要目的及功效在於，乙太網路電源供應器100偵測負載設備200是否接入，以決定是否供電給第一控制模組1並使其運作。當負載設備200未接入乙太網路電源供應器100時，第二控制模組2控制第一控制模組1斷電而處於停止工作的狀態，以節省乙太網路電源供應器100電力之消耗，且符合效率能源規章(例如但不限於，DoE、EC CoC、MEPS、Tier...之類)。當負載設備200接入乙太網路電源供應器100時，第二控制模組2控制第一控制模組1上電且處於工作狀態，以使第一控制模組1控制乙太網路電源供應器100供給負載設備的電力。 Specifically, the main purpose and function of the present invention is that the Ethernet power supply 100 detects whether the load device 200 is connected, so as to determine whether to supply power to the first control module 1 and make it operate. When the load device 200 is not connected to the Ethernet power supply 100, the second control module 2 controls the first control module 1 to power off and is in a state of stopping work, so as to save the power of the Ethernet power supply 100 Consumption, and comply with efficiency energy regulations (such as but not limited to, DoE, EC CoC, MEPS, Tier...etc.). When the load device 200 is connected to the Ethernet power supply 100, the second control module 2 controls the first control module 1 to be powered on and in a working state, so that the first control module 1 controls the Ethernet power supply The supplier 100 supplies power to load devices.

請參閱圖2為本發明具有省電功能的乙太網路電源供應器之細部方塊圖，復配合參閱圖1。第一控制模組1包括電源端1-1，且另一端耦接總線負極Bn並用以控制乙太網路電源供應器100供給負載設備200的電力。第二控制模組2包括路徑控制電路22、第一控制迴路24及第二控制迴路26。其中，總線負極Bn根據負載設備200負極端En接入或抽離總線負極Bn而輸出第一控 制訊號Sc1，第一控制訊號Sc1可以是但不限於總線負極Bn的直流電壓Vdc。路徑控制電路22耦接第一控制模組1的電源端1-1與總線正極Bp，用以導通或關斷電源端1-1與總線正極Bp的耦接關係。第一控制迴路24耦接總線負極Bn與路徑控制電路22，且用以根據總線負極Bn提供的第一控制訊號Sc1而導通路徑控制電路22。第二控制迴路26耦接第一控制模組1與路徑控制電路22，且用以根據第一控制模組1提供的第二控制訊號Sc2而導通路徑控制電路22。 Please refer to FIG. 2 which is a detailed block diagram of the Ethernet power supply with power saving function of the present invention, and refer to FIG. 1 for the combination. The first control module 1 includes a power terminal 1 - 1 , and the other terminal is coupled to the negative bus Bn and used to control the power supplied by the Ethernet power supply 100 to the load device 200 . The second control module 2 includes a path control circuit 22 , a first control loop 24 and a second control loop 26 . Wherein, the bus negative pole Bn outputs the first control according to the connection of the negative terminal En of the load device 200 to or from the bus negative pole Bn. The control signal Sc1, the first control signal Sc1 may be but not limited to the DC voltage Vdc of the negative bus Bn. The path control circuit 22 is coupled to the power terminal 1 - 1 of the first control module 1 and the positive bus Bp for turning on or off the coupling relationship between the power terminal 1 - 1 and the positive bus Bp. The first control loop 24 is coupled to the negative bus Bn and the path control circuit 22, and is used for turning on the path control circuit 22 according to the first control signal Sc1 provided by the negative bus Bn. The second control loop 26 is coupled to the first control module 1 and the path control circuit 22 , and is used for turning on the path control circuit 22 according to the second control signal Sc2 provided by the first control module 1 .

具體而言，當負載設備200尚未接入乙太網路電源供應器100而使負極端En是未接入總線負極Bn的狀態時，總線負極Bn所提供第一控制訊號Sc1所對應的直流電壓Vdc是負極端En未接入總線負極Bn且總線負極Bn未接地狀態，且第一控制模組1處於斷電而停止工作的狀態而不提供第二控制訊號Sc2，因而第一控制迴路24與第二控制迴路26分別依據第一控制訊號Sc1與第二控制訊號Sc2的狀態使路徑控制電路22關斷電源端1-1與總線正極Bp的耦接關係。 Specifically, when the load device 200 is not connected to the Ethernet power supply 100 and the negative terminal En is not connected to the negative terminal Bn of the bus, the negative terminal Bn of the bus provides the DC voltage corresponding to the first control signal Sc1 Vdc is the state where the negative terminal En is not connected to the negative bus Bn and the negative bus Bn is not grounded, and the first control module 1 is in a power-off and stopped working state without providing the second control signal Sc2, so the first control loop 24 and The second control loop 26 enables the path control circuit 22 to turn off the coupling relationship between the power terminal 1 - 1 and the bus positive terminal Bp according to the states of the first control signal Sc1 and the second control signal Sc2 respectively.

再者，當負載設備200接入乙太網路電源供應器100而使負極端En是接入總線負極Bn的狀態時，乙太網路電源供應器100與負載設備200會產生第一端部100-1、總線正極Bp、負載設備200至總線負極Bn迴路的接入暫態階段，使總線負極Bn的端點電壓Vc提升並作為第一控制訊號Sc1提供至第一控制迴路24，第一控制迴路24根據接入暫態階段的第一控制訊號Sc1而提供第一控制迴路有效訊號Se1至路徑控制電路22。以及，於接入暫態階段時的第二控制迴路26根據第一控制模組1仍處於斷電停止工作的狀態而提供第二控制迴路無效訊號Sn2至路徑控制電路22。因此，路徑控制電路22根據第一控制迴路有效訊號Se1而導通，以在電源端1-1與總線正極Bp電氣耦接，第一控制模 組1通過路徑控制電路22接收供電電壓Vcc(或直流電壓Vdc)而處於上電工作狀態。 Furthermore, when the load device 200 is connected to the Ethernet power supply 100 and the negative terminal En is connected to the negative terminal Bn of the bus, the Ethernet power supply 100 and the load device 200 will generate a first terminal 100-1. In the transient phase of connecting the bus positive pole Bp and the load device 200 to the bus negative pole Bn loop, the terminal voltage Vc of the bus negative pole Bn is raised and provided to the first control loop 24 as the first control signal Sc1, the first The control loop 24 provides a first control loop valid signal Se1 to the path control circuit 22 according to the first control signal Sc1 of the access transient phase. And, when the second control loop 26 is connected to the transient state, it provides the second control loop invalid signal Sn2 to the path control circuit 22 according to the first control module 1 is still in the power-off and stop working state. Therefore, the path control circuit 22 is turned on according to the effective signal Se1 of the first control loop, so as to be electrically coupled to the bus positive pole Bp at the power supply terminal 1-1, and the first control mode The group 1 receives the power supply voltage Vcc (or DC voltage Vdc) through the path control circuit 22 and is in the power-on working state.

基於前述實施例，在接入暫態階段且第一控制模組1處於上電工作狀態，前述且第一控制模組1開始提供第三控制訊號Sc3通過總線負極Bn與負極端En而和負載設備200進行交握通訊，並依據此交握通訊結果控制乙太網路電源供應器100電力供給負載設備200的狀態。其中，第一控制模組1和負載設備200交握通訊係包括判斷負載設備200為有效負載或無效負載。第一控制模組1和負載設備200交握通訊在判斷負載設備200為有效負載的狀況下，控制乙太網路電源供應器100供給電力負載設備200，而脫離接入暫態階段進入供給電力階段。以及，在判斷負載設備200無效負載的狀況下，控制乙太網路電源供應器100停止供給電力負載設備200，而脫離供給電力階段進入無供給電力階段。 Based on the above-mentioned embodiment, in the access transient phase and the first control module 1 is in the power-on working state, the above-mentioned first control module 1 starts to provide the third control signal Sc3 through the bus negative terminal Bn and the negative terminal En to connect with the load The device 200 performs handshake communication, and controls the status of the Ethernet power supply 100 supplying power to the load device 200 according to the result of the handshake communication. Wherein, the handshaking communication system between the first control module 1 and the load device 200 includes judging whether the load device 200 is a valid load or an invalid load. The first control module 1 and the load device 200 handshake communication and control the Ethernet power supply 100 to supply power to the load device 200 under the condition that the load device 200 is judged to be a valid load, and enter the power supply from the access transient state stage. And, when it is judged that the load device 200 is not loaded, the Ethernet power supply 100 is controlled to stop supplying power to the load device 200 , and to leave the power supply stage and enter the no power supply stage.

請參閱圖1及圖2，基於前述實施例，另一具體實施例為第一控制模組1包括穩壓儲能模組12、供電控制器14及通訊模組16，且穩壓儲能模組12通過電源端1-1耦接第二控制模組2。其中，穩壓儲能模組12例如但不限於，可以為穩壓電路、儲能元件、轉換器等具有穩壓、儲能或電源轉換功能的元件或電路。供電控制器14具有電源接腳VDD與通訊端Ec，電源接腳VDD通過穩壓儲能模組12耦接電源端1-1，通訊端Ec耦接第二控制模組2與通訊模組16。其中，通訊端Ec可包括第一接腳Ec1與第二接腳Ec2，第一接腳Ec1耦接第二控制迴路26，第二接腳Ec2通過通訊模組16耦接總線負極Bn。以及，供電控制器14用以在工作狀態時，通過第一接腳Ec1與第二接腳Ec2分別提供第二控制訊號Sc2與第三控制訊號Sc3，以進行相應地控制。 Please refer to Figure 1 and Figure 2, based on the foregoing embodiments, another specific embodiment is that the first control module 1 includes a voltage-stabilized energy storage module 12, a power supply controller 14, and a communication module 16, and the voltage-stabilized energy storage module The group 12 is coupled to the second control module 2 through the power terminal 1-1. Wherein, the voltage stabilizing energy storage module 12 can be, for example but not limited to, a voltage stabilizing circuit, an energy storage element, a converter, and other components or circuits with functions of voltage stabilizing, energy storage, or power conversion. The power supply controller 14 has a power supply pin VDD and a communication terminal Ec, the power supply pin VDD is coupled to the power supply terminal 1-1 through the energy storage module 12, and the communication terminal Ec is coupled to the second control module 2 and the communication module 16 . The communication terminal Ec may include a first pin Ec1 and a second pin Ec2 , the first pin Ec1 is coupled to the second control loop 26 , and the second pin Ec2 is coupled to the negative bus Bn through the communication module 16 . And, the power supply controller 14 is used to provide the second control signal Sc2 and the third control signal Sc3 respectively through the first pin Ec1 and the second pin Ec2 in the working state for corresponding control.

另外，前述之穩壓儲能模組12用以將直流電壓Vdc儲存為供電電壓Vcc，且穩定供電電壓Vcc的電壓值，以提供供電控制器14上電且處於工作狀態的電力。值得一提，若是供電控制器14可以直接地利用直流電壓Vdc而工作時，則穩壓儲能模組12亦可省略。 In addition, the aforementioned regulated energy storage module 12 is used to store the DC voltage Vdc as the power supply voltage Vcc, and stabilize the voltage value of the power supply voltage Vcc, so as to provide power for the power supply controller 14 to be powered on and in a working state. It is worth mentioning that if the power supply controller 14 can directly use the DC voltage Vdc to work, the voltage-stabilizing energy storage module 12 can also be omitted.

前述之第二控制模組2中，第一控制迴路24耦接總線負極Bn與路徑控制電路22的控制端，且第二控制迴路26耦接供電控制器14第一接腳Ec1與路徑控制電路22的控制端。其中，第一控制迴路24根據負極端En接入總線負極Bn接入暫態階段的第一控制訊號Sc1而提供第一控制迴路有效訊號Se1至路徑控制電路22，使路徑控制電路22導通電源端1-1與總線正極Bp電氣耦接關係，且供電控制器14則進一步處於上電工作狀態。處於上電工作狀態的供電控制器14透過第二接腳Ec2提供第三控制訊號Sc3經由通訊模組16耦接總線負極Bn而與負載設備200進行交握通訊，供電控制器14依據交握通訊結果對應由第一接腳Ec1輸出第二控制訊號Sc2。第二控制迴路26根據第一接腳Ec1輸出的第二控制訊號Sc2而提供第二控制迴路有效訊號Se2至路徑控制電路22，路徑控制電路22依據第二控制迴路有效訊號Se2導通電源端1-1與總線正極Bp電氣耦接關係，使供電控制器14繼續維持上電工作狀態，且供電控制器14控制乙太網路電源供應器100用以將直流電壓Vdc提供至負載設備200而處於供給電力階段。以及，第二控制迴路26根據第一接腳Ec1未輸出第二控制訊號Sc2而提供第二控制迴路無效訊號Sn2至路徑控制電路22，路徑控制電路22依據第二控制迴路無效訊號Sn2關斷電源端1-1與總線正極Bp電氣耦接關係，使供電控制器14進入斷電的停止工作狀態，且供電控制器14控制乙太網路電源供應器100停止將直流電壓Vdc提供至負載設備200而處於無供給電力階段。 In the aforementioned second control module 2, the first control loop 24 is coupled to the bus negative pole Bn and the control terminal of the path control circuit 22, and the second control loop 26 is coupled to the first pin Ec1 of the power supply controller 14 and the path control circuit. 22 control terminal. Wherein, the first control loop 24 provides the first control loop effective signal Se1 to the path control circuit 22 according to the first control signal Sc1 in which the negative terminal En is connected to the negative terminal Bn of the bus and connected to the transient phase, so that the path control circuit 22 turns on the power terminal. 1-1 is electrically coupled to the bus positive pole Bp, and the power supply controller 14 is further in a power-on working state. The power supply controller 14 in the power-on working state provides the third control signal Sc3 through the second pin Ec2 and couples the bus negative pole Bn through the communication module 16 to perform handshake communication with the load device 200. The power supply controller 14 performs handshake communication according to the handshake communication The result corresponds to outputting the second control signal Sc2 from the first pin Ec1. The second control loop 26 provides the second control loop effective signal Se2 to the path control circuit 22 according to the second control signal Sc2 output by the first pin Ec1, and the path control circuit 22 turns on the power terminal 1- according to the second control loop effective signal Se2. 1 is electrically coupled with the positive pole Bp of the bus, so that the power supply controller 14 continues to maintain the power-on working state, and the power supply controller 14 controls the Ethernet power supply 100 to provide the DC voltage Vdc to the load device 200 and is in the supply state. power stage. And, the second control loop 26 provides the second control loop invalid signal Sn2 to the path control circuit 22 according to the first pin Ec1 not outputting the second control signal Sc2, and the path control circuit 22 turns off the power supply according to the second control loop invalid signal Sn2 Terminal 1-1 is electrically coupled to the bus positive pole Bp, so that the power supply controller 14 enters the power-off stop working state, and the power supply controller 14 controls the Ethernet power supply 100 to stop providing the DC voltage Vdc to the load device 200 And in the stage of no power supply.

前述供電控制器14第二接腳Ec2提供第三控制訊號Sc3經由通訊模組16耦接總線負極Bn而與負載設備200進行交握通訊，以確認負載設備200為有效負載或為無效負載，且供電控制器14依據負載設備200為有效負載而透過第一接腳Ec1輸出第二控制訊號Sc2，供電控制器14依據負載設備200為無效負載而透過第一接腳Ec1輸出第四控制訊號Sc4。其中，第二控制迴路26根據第一接腳Ec1輸出的第二控制訊號Sc2而提供第二控制迴路有效訊號Se2至路徑控制電路22，路徑控制電路22依據第二控制迴路有效訊號Se2導通電源端1-1與總線正極Bp電氣耦接關係，使供電控制器14繼續維持上電工作狀態，且供電控制器14控制乙太網路電源供應器100用以將直流電壓Vdc提供至負載設備200而處於供給電力階段。以及，第二控制迴路26根據第一接腳Ec1輸出第四控制訊號Sc4而提供第二控制迴路無效訊號Sn2至路徑控制電路22，路徑控制電路22依據第二控制迴路無效訊號Sn2關斷電源端1-1與總線正極Bp電氣耦接關係，使供電控制器14進入斷電的停止工作狀態，且供電控制器14控制乙太網路電源供應器100停止將直流電壓Vdc提供至負載設備200而處於無供給電力階段。 The second pin Ec2 of the aforementioned power supply controller 14 provides a third control signal Sc3 via the communication module 16 coupled to the bus negative pole Bn to carry out handshake communication with the load device 200 to confirm whether the load device 200 is a valid load or an invalid load, and The power supply controller 14 outputs the second control signal Sc2 through the first pin Ec1 according to the load device 200 being a valid load, and the power supply controller 14 outputs the fourth control signal Sc4 through the first pin Ec1 according to the load device 200 being an invalid load. Wherein, the second control loop 26 provides the second control loop effective signal Se2 to the path control circuit 22 according to the second control signal Sc2 output by the first pin Ec1, and the path control circuit 22 turns on the power terminal according to the second control loop effective signal Se2 1-1 is electrically coupled with the bus positive pole Bp, so that the power supply controller 14 continues to maintain the power-on working state, and the power supply controller 14 controls the Ethernet power supply 100 to provide the DC voltage Vdc to the load device 200 and In the stage of power supply. And, the second control loop 26 outputs the fourth control signal Sc4 according to the first pin Ec1 to provide the second control loop invalid signal Sn2 to the path control circuit 22, and the path control circuit 22 turns off the power terminal according to the second control loop invalid signal Sn2 1-1 is electrically coupled with the bus positive pole Bp, so that the power supply controller 14 enters the power-off stop working state, and the power supply controller 14 controls the Ethernet power supply 100 to stop providing the DC voltage Vdc to the load device 200 and In the stage of no power supply.

再者，前述供電控制器14依據負載設備200為有效負載而將總線負極Bn耦接接地，且供電控制器14依據負載設備200為無效負載而將總線負極Bn關斷接地。 Furthermore, the aforementioned power supply controller 14 couples the bus negative terminal Bn to ground according to the load device 200 being an effective load, and the power supply controller 14 turns off the bus negative terminal Bn to ground according to the load device 200 being an invalid load.

前述具體實施例中，通訊模組16可以係進一步包括開關SWc，且第一接腳Ec1耦接開關SWc的控制端，開關SWc一端接地且另一端耦接總線負極Bn。以及，第二接腳Ec2則透過通訊模組16耦接總線負極Bn。因此，供電控制器14依據負載設備200為有效負載而提供第二控制訊號Sc2將開關SWc 導通，使總線負極Bn耦接接地。以及，供電控制器14依據負載設備200為無效負載而提供第四控制訊號Sc4將開關SWc關斷，使總線負極Bn關斷接地。 In the aforementioned specific embodiments, the communication module 16 may further include a switch SWc, and the first pin Ec1 is coupled to the control terminal of the switch SWc, one end of the switch SWc is grounded and the other end is coupled to the negative bus Bn. And, the second pin Ec2 is coupled to the bus negative electrode Bn through the communication module 16 . Therefore, the power supply controller 14 provides the second control signal Sc2 according to the effective load of the load device 200 to switch SWc is turned on, so that the negative pole of the bus Bn is coupled to the ground. And, the power supply controller 14 provides the fourth control signal Sc4 to turn off the switch SWc according to the load device 200 being an invalid load, so that the bus negative electrode Bn is turned off and grounded.

前述供電控制器14依據乙太網路供電規範(例如但不限於IEEE802.3的乙太網路供電規範)進行判斷負載設備200為有效負載或無效負載。其中，供電控制器14開始提供第三控制訊號Sc3通過總線負極Bn與負極端En而和負載設備200進行交握通訊，並依據此交握通訊結果控制乙太網路電源供應器100供給與負載設備200的電力。因此，當供電控制器14依據負載設備200為有效負載並處於供給電力階段時，供電控制器14控制供給負載設備200的功率是依據乙太網路供電規範定義。 The aforementioned power supply controller 14 judges whether the load device 200 is a valid load or an invalid load according to the Ethernet power supply specification (such as but not limited to the IEEE802.3 Ethernet power supply specification). Wherein, the power supply controller 14 starts to provide the third control signal Sc3 to carry out handshake communication with the load device 200 through the negative terminal Bn and the negative terminal En of the bus, and controls the supply and load of the Ethernet power supply 100 according to the handshake communication result. Power for device 200 . Therefore, when the power supply controller 14 regards the load device 200 as an effective load and is in the stage of supplying power, the power supply controller 14 controls the power supplied to the load device 200 according to the definition of the Ethernet power supply specification.

另外，前述乙太網路供電規範也可由使用者自訂有效負載與無效負載定義，以及也可由使用者自訂有效負載時所供給的功率範圍定義。 In addition, the aforementioned Power over Ethernet specification can also be defined by the user-defined payload and invalid load, and can also be defined by the power range supplied when the user defines the payload.

前述第一控制迴路24係依據第一控制訊號Sc1所對應的總線負極Bn端點電壓Vc而對應提供第一控制迴路有效訊號Se1或第一控制迴路無效訊號Sn1。其中，第一控制訊號Sc1對應負極端En接入總線負極Bn且總線負極Bn尚未接地的接入暫態階段，第一控制迴路24係依據第一控制訊號Sc1而提供第一控制迴路有效訊號Se1至路徑控制電路22，路徑控制電路22依據第一控制迴路有效訊號Se1而導通使供電控制器14處於上電工作狀態。第一控制訊號Sc1對應負極端En接入總線負極Bn且總線負極Bn為接地而脫離接入暫態階段的狀態時，第一控制迴路24係依據第一控制訊號Sc1而提供第一控制迴路無效訊號Sn1至路徑控制電路22。以及，第一控制訊號Sc1對應負極端En抽離總線負極Bn的狀態時，第一控制迴路24係依據第一控制訊號Sc1而提供第一控制迴路無效訊號Sn1至路徑控制電路22。因此，當第一控制迴路24提供第一 控制迴路有效訊號Se1，且第二控制迴路26提供第二控制迴路無效訊號Sn2，使路徑控制電路22導通電源端1-1與總線正極Bp電氣耦接關係，且供電控制器14為上電工作狀態，但仍為無供給電力階段。當第一控制迴路24提供第一控制迴路無效訊號Sn1，且第二控制迴路26提供第二控制迴路有效訊號Se2，使路徑控制電路22導通電源端1-1與總線正極Bp電氣耦接關係，且供電控制器14為上電工作狀態，同時為供給電力階段。以及，當第一控制迴路24提供第一控制迴路無效訊號Sn1，且第二控制迴路26提供第二控制迴路無效訊號Sn2，使路徑控制電路22關斷電源端1-1與總線正極Bp電氣耦接關係，且供電控制器14進入斷電停止工作狀態。 The aforementioned first control loop 24 correspondingly provides the first control loop valid signal Se1 or the first control loop invalid signal Sn1 according to the bus negative Bn terminal voltage Vc corresponding to the first control signal Sc1. Wherein, the first control signal Sc1 corresponds to the connection transient phase when the negative terminal En is connected to the bus negative terminal Bn and the bus negative terminal Bn is not grounded, and the first control loop 24 provides the first control loop effective signal Se1 according to the first control signal Sc1 To the path control circuit 22 , the path control circuit 22 is turned on according to the effective signal Se1 of the first control loop so that the power supply controller 14 is in a power-on working state. When the negative terminal En of the first control signal Sc1 is connected to the negative terminal of the bus Bn and the negative terminal Bn of the bus is grounded to leave the state of entering the transient phase, the first control loop 24 provides the invalidation of the first control loop according to the first control signal Sc1 The signal Sn1 is sent to the path control circuit 22 . And, when the first control signal Sc1 corresponds to the state where the negative terminal En is separated from the bus negative terminal Bn, the first control loop 24 provides the first control loop invalid signal Sn1 to the path control circuit 22 according to the first control signal Sc1. Therefore, when the first control loop 24 provides the first The control loop effective signal Se1, and the second control loop 26 provides the second control loop invalid signal Sn2, so that the path control circuit 22 conducts the electrical coupling relationship between the power supply terminal 1-1 and the bus positive pole Bp, and the power supply controller 14 is powered on. state, but still in the stage of no power supply. When the first control loop 24 provides the first control loop invalid signal Sn1, and the second control loop 26 provides the second control loop valid signal Se2, so that the path control circuit 22 conducts the electrical coupling relationship between the power supply terminal 1-1 and the bus positive pole Bp, And the power supply controller 14 is in the power-on working state, and at the same time it is in the power supply stage. And, when the first control loop 24 provides the first control loop invalid signal Sn1, and the second control loop 26 provides the second control loop invalid signal Sn2, the path control circuit 22 turns off the electrical coupling between the power supply terminal 1-1 and the bus positive pole Bp. connection relationship, and the power supply controller 14 enters the power-off stop working state.

具體而言，當負載設備200接入乙太網路電源供應器100中的總線負極Bn時，乙太網路電源供應器100與負載設備200會產生第一端部100-1、總線正極Bp、負載設備200至總線負極Bn迴路的接入暫態階段，使總線負極Bn的端點電壓Vc提升，因而。第一控制迴路24根據負載設備200接入暫態階段，總線負極Bn的端點電壓Vc提昇而提供第一控制迴路有效訊號Se1至路徑控制電路22。同時，由於供電控制器14當下仍處於斷電而停止工作的狀態，因此第二控制迴路26提供第二控制迴路無效訊號Sn2至路徑控制電路22。接續，路徑控制電路22根據第一控制迴路有效訊號Se1而導通，以在電源端1-1與總線正極Bp電氣耦接。同時，供電控制器14通過路徑控制電路22接收供電電壓Vcc(或直流電壓Vdc)而處於上電工作狀態，且供電控制器14第二接腳Ec2開始提供第三控制訊號Sc3與負載設備200嘗試溝通，以判斷負載設備200為有效負載或無效負載。 Specifically, when the load device 200 is connected to the bus negative pole Bn of the Ethernet power supply 100, the Ethernet power supply 100 and the load device 200 will generate the first terminal 100-1, the bus positive pole Bp 1. In the transient phase of connecting the load device 200 to the bus negative pole Bn loop, the terminal voltage Vc of the bus negative pole Bn is increased, thus. The first control loop 24 is connected to the transient phase according to the load device 200 , and the terminal voltage Vc of the bus negative pole Bn increases to provide the first control loop effective signal Se1 to the path control circuit 22 . At the same time, since the power supply controller 14 is still in a power-off state and stops working, the second control loop 26 provides the second control loop invalid signal Sn2 to the path control circuit 22 . Next, the path control circuit 22 is turned on according to the first control loop effective signal Se1, so as to be electrically coupled to the bus positive terminal Bp at the power terminal 1-1. At the same time, the power supply controller 14 receives the power supply voltage Vcc (or DC voltage Vdc) through the path control circuit 22 and is in the power-on working state, and the second pin Ec2 of the power supply controller 14 starts to provide the third control signal Sc3 and the load device 200 tries to communicate to determine whether the load device 200 is a valid load or an invalid load.

前述當供電控制器14通過第三控制訊號Sc3與負載設備200交握通訊，並判斷負載設備200為有效負載時，供電控制器14提供第二控制訊號Sc2(例如但不限於可以為高電位訊號)至通訊模組16，以控制通訊模組16將總線負極Bn接地而處於供給電力階段。在供給電力階段，電控制器14也提供第二控制訊號Sc2至第二控制迴路26，且總線負極Bn接地後，直流電壓Vdc可通過總線正極Bp與總線負極Bn提供至負載設備200，以供應負載設備200所需求的電力。此時，由於總線負極Bn接地而脫離接入暫態階段並進入供給電力階段，因此第一控制迴路24根據供給電力階段以提供第一控制迴路無效訊號Sn1至路徑控制電路22。第二控制迴路26則是根據第二接腳Ec2所提供的第二控制訊號Sc2而提供第二控制迴路有效訊號Se2至路徑控制電路22，使路徑控制電路22根據第二控制迴路有效訊號Se2而持續導通。 As mentioned above, when the power supply controller 14 handshakes communication with the load device 200 through the third control signal Sc3 and determines that the load device 200 is an effective load, the power supply controller 14 provides the second control signal Sc2 (such as but not limited to a high potential signal ) to the communication module 16, so as to control the communication module 16 to ground the bus negative pole Bn to be in the power supply stage. In the stage of power supply, the electric controller 14 also provides the second control signal Sc2 to the second control loop 26, and after the bus negative pole Bn is grounded, the DC voltage Vdc can be provided to the load device 200 through the bus positive pole Bp and the bus negative pole Bn to supply The power required by the load device 200 . At this time, since the bus negative electrode Bn is grounded and enters the power supply phase from the access transient phase, the first control loop 24 provides the first control loop invalid signal Sn1 to the path control circuit 22 according to the power supply phase. The second control loop 26 provides the second control loop effective signal Se2 to the path control circuit 22 according to the second control signal Sc2 provided by the second pin Ec2, so that the path control circuit 22 can control the path according to the second control loop effective signal Se2. continuous conduction.

進一步而言，前述通訊模組16例如但不限於可以使用開關SWc構成，供電控制器14可在通訊端Ec的第二接腳Ec2提供第三控制訊號Sc3時，將第三控制訊號Sc3傳遞至總線負極Bn，在通訊完成後，供電控制器14通訊端Ec的第一接腳Ec1提供第二控制訊號Sc2將開關SWc導通，使總線負極Bn透過開關SWc接地。意即，第二控制訊號Sc2可以為高電位訊號，且此訊號電位足夠導通開關SWc。另外，在負載設備200抽離乙太網路電源供應器100時，通訊端Ec第一接腳Ec1提供第四控制訊號Sc4關斷開關SWc，使總線負極Bn回復至尚未接入負載設備200的狀態。 Further, the above-mentioned communication module 16 can be constituted by, for example but not limited to, a switch SWc, and the power supply controller 14 can transmit the third control signal Sc3 to the After the communication of the bus negative pole Bn is completed, the first pin Ec1 of the communication terminal Ec of the power supply controller 14 provides the second control signal Sc2 to turn on the switch SWc, so that the bus negative pole Bn is grounded through the switch SWc. That is, the second control signal Sc2 can be a high potential signal, and the signal potential is sufficient to turn on the switch SWc. In addition, when the load device 200 is removed from the Ethernet power supply 100, the first pin Ec1 of the communication terminal Ec provides the fourth control signal Sc4 to turn off the switch SWc, so that the negative pole Bn of the bus returns to the one that has not been connected to the load device 200. state.

請參閱圖3A為本發明第二控制模組第一實施例之電路方塊圖、圖3B為本發明第二控制模組第二實施例之電路方塊圖，復配合參閱圖1~2。在圖3A中，第一控制迴路24與第二控制迴路26可以為具有比較電位功能的電 路。以比較器所構成的電路為例，第一控制迴路24可耦接第一參考電壓Vref1，且第二控制迴路26可耦接第二參考電壓Vref2。第一控制迴路24比較的總線負極Bn所提供訊號與第一參考電壓Vref1，且根據比較結果提供第一控制迴路有效訊號Se1，使第一控制迴路24提供第一控制迴路有效訊號Se1導通路徑控制電路22。以及，第二控制迴路26比較第一接腳Ec1所提供的訊號與第二參考電壓Vref2，且根據比較結果提供第二控制迴路有效訊號Se2，使第二控制迴路26提供第二控制迴路有效訊號Se2導通路徑控制電路22。其中，當總線負極Bn所提供訊號電位高於第一參考電壓Vref1，使第一控制迴路24提供第一控制迴路有效訊號Se1導通路徑控制電路22，且當第一接腳Ec1所提供訊號電位高於第二參考電壓Vref2，使第二控制迴路26提供第二控制迴路有效訊號Se2導通路徑控制電路22。 Please refer to FIG. 3A which is a circuit block diagram of the first embodiment of the second control module of the present invention, and FIG. 3B is a circuit block diagram of the second embodiment of the second control module of the present invention. Refer to FIGS. 1-2 for complex coordination. In FIG. 3A, the first control loop 24 and the second control loop 26 can be electric circuits with a function of comparing potentials. road. Taking the circuit formed by the comparator as an example, the first control loop 24 can be coupled to the first reference voltage Vref1 , and the second control loop 26 can be coupled to the second reference voltage Vref2 . The first control loop 24 compares the signal provided by the bus negative pole Bn with the first reference voltage Vref1, and provides the first control loop effective signal Se1 according to the comparison result, so that the first control loop 24 provides the first control loop effective signal Se1 to control the conduction path Circuit 22. And, the second control loop 26 compares the signal provided by the first pin Ec1 with the second reference voltage Vref2, and provides the second control loop effective signal Se2 according to the comparison result, so that the second control loop 26 provides the second control loop effective signal Se2 turns on the path control circuit 22 . Wherein, when the signal potential provided by the bus negative pole Bn is higher than the first reference voltage Vref1, the first control loop 24 provides the first control loop effective signal Se1 to conduct the path control circuit 22, and when the signal potential provided by the first pin Ec1 is high At the second reference voltage Vref2 , the second control loop 26 provides the second control loop effective signal Se2 to conduct the path control circuit 22 .

另外，第一控制迴路24可進一步比較總線負極Bn端點電壓Vc所對應的第一控制訊號Sc1與第一參考電壓Vref1而提供第一控制迴路有效訊號Se1。以及，第二控制迴路26可進一步比較第一接腳Ec1所提供第二控制訊號Sc2與第二參考電壓Vref2而提供第二控制迴路有效訊號Se2。 In addition, the first control loop 24 can further compare the first control signal Sc1 corresponding to the bus negative Bn terminal voltage Vc with the first reference voltage Vref1 to provide the first control loop effective signal Se1. And, the second control loop 26 can further compare the second control signal Sc2 provided by the first pin Ec1 with the second reference voltage Vref2 to provide the second control loop effective signal Se2.

再者，第一控制迴路24可進一步比較總線負極Bn端點電壓Vc所對應的第一控制訊號Sc1高於第一參考電壓Vref1時而提供第一控制迴路有效訊號Se1，且第一控制訊號Sc1低於第一參考電壓Vref1時而提供第一控制迴路無效訊號Sn1。以及，第二控制迴路26可進一步比較第一接腳Ec1所提供第二控制訊號Sc2高於第二參考電壓Vref2而提供第二控制迴路有效訊號Se2，且第二控制訊號Sc2低於第二參考電壓Vref2時而提供第二控制迴路無效訊號Sn2。 Moreover, the first control loop 24 can further compare the first control signal Sc1 corresponding to the bus negative terminal Bn terminal voltage Vc higher than the first reference voltage Vref1 to provide the first control loop effective signal Se1, and the first control signal Sc1 When the first reference voltage Vref1 is lower than the first control loop invalid signal Sn1 is provided. And, the second control loop 26 can further compare the second control signal Sc2 provided by the first pin Ec1 higher than the second reference voltage Vref2 to provide the second control loop valid signal Se2, and the second control signal Sc2 is lower than the second reference voltage Vref2. The voltage Vref2 sometimes provides the second control loop invalid signal Sn2.

前述第一實施例中，其中當第一接腳Ec1所提供第二控制訊號Sc2或未提供第二控制訊號Sc2時的電位低於第二參考電壓Vref2時，第二控制迴路則提供第二控制迴路無效訊號Sn2。 In the aforementioned first embodiment, when the potential of the second control signal Sc2 provided by the first pin Ec1 or when the second control signal Sc2 is not provided is lower than the second reference voltage Vref2, the second control loop provides the second control Loop invalid signal Sn2.

前述第一實施例中，其中當第一接腳Ec1所提供第二控制訊號Sc2的電位低於第二參考電壓Vref2時，第二控制迴路則提供第二控制迴路無效訊號Sn2。 In the aforementioned first embodiment, when the potential of the second control signal Sc2 provided by the first pin Ec1 is lower than the second reference voltage Vref2 , the second control loop provides the second control loop invalid signal Sn2 .

前述第一實施例中，路徑控制電路22包括路徑開關222，路徑開關222可以由例如但不限於由MOSFET電晶體等具有開關功能的元件及電子元件(例如電阻、電容等)所組成。以電晶體為例，路徑開關222的一端耦接總線正極Bp，且另一端耦接電源端1-1。路徑開關222的控制端耦接第一控制迴路24與第二控制迴路26，以通過第一控制迴路24與第二控制迴路26所提供的訊號控制路徑開關222導通或關斷。當第一控制迴路24與第二控制迴路26的其中之一提供有效訊號時，路徑開關222導通，且當第一控制迴路24與第二控制迴路26皆提供無效訊號時，則路徑開關222關斷。 In the above-mentioned first embodiment, the path control circuit 22 includes a path switch 222, which may be composed of, for example but not limited to, components with switching functions such as MOSFET transistors and electronic components (such as resistors, capacitors, etc.). Taking a transistor as an example, one end of the path switch 222 is coupled to the bus anode Bp, and the other end is coupled to the power terminal 1 - 1 . The control terminal of the path switch 222 is coupled to the first control loop 24 and the second control loop 26 to control the path switch 222 to be turned on or off through signals provided by the first control loop 24 and the second control loop 26 . When one of the first control loop 24 and the second control loop 26 provides a valid signal, the path switch 222 is turned on, and when both the first control loop 24 and the second control loop 26 provide an invalid signal, the path switch 222 is turned off. broken.

圖3B中，第一控制迴路24與第二控制迴路26可以為例如但不限於由MOSFET電晶體等具有開關功能的元件及電子元件(例如電阻、電容等)所組成的開關電路。第一控制迴路24可以為第一開關元件SW1組成的開關電路，且第二控制迴路26也可以為第二開關元件SW2組成的開關電路，其中第一開關元件SW1與第二開關元件SW2可以為例如但不限於由MOSFET電晶體等具有開關功能的元件。當第一控制迴路24收到線負極Bn所提供的第一控制訊號Sc1時，第一開關元件SW1對應提供第一控制迴路有效訊號Se1使路徑控制電路22導通，以產生電源端1-1與總線正極Bp之間的電氣耦接關係。當第二控 制迴路26收到第二控制訊號Sc2時，第二開關元件SW2對應提供第二控制迴路有效訊號Se2使路徑控制電路22導通，以產生電源端1-1與總線正極Bp之間的電氣耦接關係。 In FIG. 3B , the first control loop 24 and the second control loop 26 can be, for example but not limited to, switching circuits composed of components with switching functions such as MOSFET transistors and electronic components (such as resistors, capacitors, etc.). The first control loop 24 may be a switching circuit composed of a first switching element SW1, and the second control loop 26 may also be a switching circuit composed of a second switching element SW2, wherein the first switching element SW1 and the second switching element SW2 may be For example, but not limited to, components with switching functions such as MOSFET transistors. When the first control circuit 24 receives the first control signal Sc1 provided by the line negative Bn, the first switch element SW1 correspondingly provides the first control circuit valid signal Se1 to turn on the path control circuit 22 to generate the power terminal 1-1 and The electrical coupling relationship between the positive poles of the bus Bp. when the second control When the control loop 26 receives the second control signal Sc2, the second switch element SW2 correspondingly provides the second control loop effective signal Se2 to turn on the path control circuit 22, so as to generate electrical coupling between the power supply terminal 1-1 and the bus positive pole Bp relation.

前述實施例中，第一開關元件SW1與第二開關元件SW2為電晶體的實施中，可根據對應端點電壓Vc所對應的第一控制訊號Sc1，且透過第一控制訊號Sc1驅動第一開關元件SW1控制端使第一開關元件SW1導通或關斷，第一控制迴路24並依據第一開關元件SW1導通或關斷而對應提供第一控制迴路有效訊號Se1或第一控制迴路無效訊號Sn1。以及，可根據第一接腳Ec1所提供的第二控制訊號Sc2驅動第二開關元件SW2控制端使第二開關元件SW2導通或關斷，第二控制迴路26並依據第二開關元件SW2導通或關斷而對應提供第二控制迴路有效訊號Se2或第二控制迴路無效訊號Sn2。 In the aforementioned embodiment, in the implementation where the first switch element SW1 and the second switch element SW2 are transistors, the first switch can be driven according to the first control signal Sc1 corresponding to the terminal voltage Vc and through the first control signal Sc1 The control terminal of the element SW1 turns on or off the first switch element SW1, and the first control loop 24 provides a first control loop valid signal Se1 or a first control loop invalid signal Sn1 according to the first switch element SW1 being turned on or off. And, according to the second control signal Sc2 provided by the first pin Ec1, the control terminal of the second switch element SW2 can be driven to turn on or off the second switch element SW2, and the second control loop 26 can be turned on or off according to the second switch element SW2. Turn off and correspondingly provide the second control loop valid signal Se2 or the second control loop invalid signal Sn2.

另外，可進一步根據第一接腳Ec1所提供的第二控制訊號Sc2及第四控制訊號Sc4驅動第二開關元件SW2控制端，並分別對應使第二開關元件SW2導通及關斷，因此使第二控制迴路26依據第二控制訊號Sc2提供第二控制迴路有效訊號Se2，且第二控制迴路26依據第四控制訊號Sc4提供第二控制迴路無效訊號Sn2。 In addition, the control end of the second switching element SW2 can be further driven according to the second control signal Sc2 and the fourth control signal Sc4 provided by the first pin Ec1, and the second switching element SW2 is turned on and off correspondingly, so that the first The second control loop 26 provides the second control loop effective signal Se2 according to the second control signal Sc2, and the second control loop 26 provides the second control loop invalid signal Sn2 according to the fourth control signal Sc4.

前述之實施例中，當第一控制迴路24提供第一控制迴路有效訊號Se1或第二控制迴路26提供第二控制迴路有效訊號Se2時，路徑開關222導通而產生電源端1-1與總線正極Bp之間的電氣耦接關係，且當第一控制迴路24提供第一控制迴路無效訊號Sn1同時第二控制迴路26提供第二控制迴路無效訊號Sn2時，則路徑開關222關斷。 In the aforementioned embodiments, when the first control loop 24 provides the first control loop effective signal Se1 or the second control loop 26 provides the second control loop effective signal Se2, the path switch 222 is turned on to generate the power supply terminal 1-1 and the bus positive pole. The electrical coupling relationship between Bp, and when the first control loop 24 provides the first control loop invalid signal Sn1 and the second control loop 26 provides the second control loop invalid signal Sn2, the path switch 222 is turned off.

前述之實施例中，前述第一控制迴路24可以係根據總線負極Bn端點電壓Vc提昇所對應的第一控制訊號Sc1而導通。 In the above-mentioned embodiment, the first control loop 24 can be turned on according to the first control signal Sc1 corresponding to the increase of the voltage Vc at the negative bus terminal Bn.

值得一提，於本發明之一實施例中，路徑控制電路22更包括驅動開關224。驅動開關224的一端耦接路徑開關222的控制端，且驅動開關224的控制端耦接第一控制迴路24與第二控制迴路26。驅動開關224用以驅動路徑開關222的導通或關斷。具體而言，由於第一端部100-1所接收的直流電壓Vdc可以為48V~55V的高壓，因此路徑開關222的電晶體需要使用p-MOSFET來耐受直流電壓Vdc，避免電晶體耐壓不足(若是使用合規的n-MOSFET則價格會過於昂貴)。因此，必須要使用驅動開關224來驅動路徑開關222，以使路徑開關222能夠順利地導通第一端部100-1與穩壓儲能模組12的電源端1-1。然而，若是直流電壓Vdc不高或是有合規的n-MOSFET電晶體的場合，則驅動開關224可以省略。進一步而言，若是直流電壓Vdc在一特定電壓(例如但不限於30V)以上，則較佳的可以使用圖3B的二開關222、224來做為開關單元22，以較能耐受直流電壓Vdc。反之，則在特定電壓以下，可以使用圖3A的單開關222來做為開關單元22。 It is worth mentioning that in an embodiment of the present invention, the path control circuit 22 further includes a driving switch 224 . One terminal of the driving switch 224 is coupled to the control terminal of the path switch 222 , and the control terminal of the driving switch 224 is coupled to the first control loop 24 and the second control loop 26 . The driving switch 224 is used to drive the path switch 222 to be turned on or off. Specifically, since the DC voltage Vdc received by the first terminal 100-1 can be a high voltage of 48V~55V, the transistor of the path switch 222 needs to use a p-MOSFET to withstand the DC voltage Vdc, so as to avoid the voltage breakdown of the transistor. Insufficient (the price will be too expensive if a compliant n-MOSFET is used). Therefore, the path switch 222 must be driven by the drive switch 224 so that the path switch 222 can smoothly connect the first terminal 100 - 1 and the power supply terminal 1 - 1 of the voltage stabilizing energy storage module 12 . However, if the DC voltage Vdc is not high or there is a qualified n-MOSFET transistor, the driving switch 224 can be omitted. Furthermore, if the DC voltage Vdc is above a specific voltage (such as but not limited to 30V), then it is preferable to use the two switches 222 and 224 in FIG. 3B as the switch unit 22 to be more resistant to the DC voltage Vdc . On the contrary, below a certain voltage, the single switch 222 of FIG. 3A can be used as the switch unit 22 .

請參閱圖4為本發明第二控制模組第三實施例之電路方塊圖，復配合參閱圖3B。於本發明之第三實施例中，路徑控制電路22更進一步構成一自鎖電路，且當第一控制迴路24提供第一控制迴路有效訊號Se1時，使路徑控制電路22導通電源端1-1與總線正極Bp之間的電氣耦接關係，且在路徑控制電路22維持導通狀態中，第一控制迴路24停止提供第一控制迴路有效訊號Se1時，路徑控制電路22維持導通狀態。以及，在路徑控制電路22維持導通狀態中且第一控制迴路24停止提供第一控制迴路有效訊號Se1時，當第二控制迴路26 提供第二控制迴路無效訊號Sn2時，路徑控制電路22關斷電源端1-1與總線正極Bp之間的電氣耦接關係。 Please refer to FIG. 4 which is a circuit block diagram of the third embodiment of the second control module of the present invention, and refer to FIG. 3B for the combination. In the third embodiment of the present invention, the path control circuit 22 further constitutes a self-locking circuit, and when the first control loop 24 provides the first control loop effective signal Se1, the path control circuit 22 is turned on to the power terminal 1-1 When the path control circuit 22 maintains the conduction state, when the first control loop 24 stops providing the first control loop effective signal Se1, the path control circuit 22 maintains the conduction state. And, when the path control circuit 22 maintains the on state and the first control loop 24 stops providing the first control loop effective signal Se1, when the second control loop 26 When the second control loop invalid signal Sn2 is provided, the path control circuit 22 shuts off the electrical coupling relationship between the power terminal 1 - 1 and the bus positive terminal Bp.

更進一步說明，第一控制迴路24提供第一控制迴路有效訊號Se1，使觸發路徑控制電路22由關斷狀態進入導通狀態，且在路徑控制電路22處於導通狀態時，第一控制迴路24停止或間斷提供第一控制迴路有效訊號Se1並不會改變路徑控制電路22的導通狀態。以及，第二控制迴路26提供第二控制迴路無效訊號Sn2，使觸發路徑控制電路22由導通狀態進入關斷狀態。 To further illustrate, the first control loop 24 provides the first control loop effective signal Se1, so that the trigger path control circuit 22 enters the conduction state from the off state, and when the path control circuit 22 is in the conduction state, the first control loop 24 stops or Providing the first control loop effective signal Se1 intermittently will not change the conduction state of the path control circuit 22 . And, the second control loop 26 provides the second control loop invalid signal Sn2 to make the trigger path control circuit 22 turn from the on state to the off state.

前述之路徑控制電路22的路徑開關222與驅動開關224中，驅動開關224可進一步為一端耦接路徑開關222的控制端，且驅動開關224的控制端耦接第一控制迴路24、第二控制迴路26與路徑開關222，使第一控制迴路24與路徑開關222用以驅使驅動開關224導通，第二控制迴路26用以驅使驅動開關224關斷，而驅動開關224進一步用以驅使路徑開關222導通或關斷。因此，當第一控制迴路24提供第一控制迴路有效訊號Se1而驅使驅動開關224導通時，驅動開關224進一步用以驅使路徑開關222導通，使路徑控制電路22導通電源端1-1與總線正極Bp之間的電氣耦接關係，且在路徑控制電路22維持導通狀態中，第一控制迴路24停止提供第一控制迴路有效訊號Se1時，已經導通的路徑開關222進一步用以驅使驅動開關224導通，使路徑開關222與驅動開關224持續相互驅使為導通，而鎖定路徑控制電路22維持在導通狀態，使路徑控制電路22也維持導通電源端1-1與總線正極Bp之間的電氣耦接關係。以及，在路徑控制電路22維持導通狀態中且第一控制迴路24停止提供第一控制迴路有效訊號Se1時，當第二控制迴路26提供第二控制迴路無效訊號Sn2而關斷驅動開關 224，關斷的驅動開關224也進一步關斷路徑控制電路22，最後使路徑控制電路22關斷電源端1-1與總線正極Bp之間的電氣耦接關係。 In the path switch 222 and the drive switch 224 of the aforementioned path control circuit 22, the drive switch 224 can further be one end coupled to the control end of the path switch 222, and the control end of the drive switch 224 is coupled to the first control circuit 24, the second control circuit The loop 26 and the path switch 222 enable the first control loop 24 and the path switch 222 to drive the drive switch 224 to be turned on, the second control loop 26 is used to drive the drive switch 224 to turn off, and the drive switch 224 is further used to drive the path switch 222 on or off. Therefore, when the first control loop 24 provides the first control loop effective signal Se1 to drive the drive switch 224 to conduct, the drive switch 224 is further used to drive the path switch 222 to conduct, so that the path control circuit 22 conducts the power terminal 1-1 and the bus positive pole. The electrical coupling relationship between Bp, and when the path control circuit 22 maintains the conduction state, when the first control loop 24 stops providing the first control loop effective signal Se1, the path switch 222 that has been turned on is further used to drive the drive switch 224 to turn on , so that the path switch 222 and the driving switch 224 are continuously driven to conduct each other, and the locking path control circuit 22 is maintained in the conduction state, so that the path control circuit 22 also maintains the electrical coupling relationship between the power supply terminal 1-1 and the bus positive pole Bp . And, when the path control circuit 22 maintains the on state and the first control loop 24 stops providing the first control loop effective signal Se1, when the second control loop 26 provides the second control loop invalid signal Sn2 to turn off the driving switch 224 , turning off the drive switch 224 also further turns off the path control circuit 22 , and finally makes the path control circuit 22 turn off the electrical coupling relationship between the power supply terminal 1 - 1 and the bus positive pole Bp.

請參閱圖5為本發明乙太網路電源供應器的省電控制方法之方法流程圖，復配合參閱圖1~4。本發明之省電控制方法主要係用以在負載設備200未接入乙太網路電源供應器100時，控制第一控制模組1斷電而處於停止工作的狀態，以節省乙太網路電源供應器100電力之消耗。因此，省電控制方法包括，偵測負載設備的接入與否而導通或關斷第一控制模組的電源端與總線正極之間的路徑控制電路(S100)。乙太網路電源供應器100偵測負載設備200是否接入，以決定是否使第一控制模組1運作。當負載設備200未接入乙太網路電源供應器100時，第二控制模組2控制第一控制模組1斷電而處於停止工作的狀態，且當負載設備200接入乙太網路電源供應器100時，第二控制模組2控制第一控制模組1上電而處於工作狀態。然後，根據負極端接入總線負極而通過第一控制迴路導通路徑控制電路(S200)。較佳的實施方式為，第一控制迴路24根據負載設備200接入時的暫態階段下，總線負極Bn的端點電壓Vc提昇而提供第一控制迴路有效訊號Se1至路徑控制電路22。路徑控制電路22根據第一控制迴路有效訊號Se1而導通，以在電源端1-1與第一端部總線正極Bp電氣耦接。 Please refer to FIG. 5 , which is a flow chart of the power-saving control method of the Ethernet power supply of the present invention, and refer to FIGS. 1-4 for complex cooperation. The power saving control method of the present invention is mainly used to control the first control module 1 to be powered off and stop working when the load device 200 is not connected to the Ethernet power supply 100, so as to save the Ethernet network. Power consumption of the power supply 100 . Therefore, the power saving control method includes: detecting whether the load device is connected or not, and turning on or off the path control circuit between the power terminal of the first control module and the positive pole of the bus ( S100 ). The Ethernet power supply 100 detects whether the load device 200 is connected to determine whether to enable the first control module 1 to operate. When the load device 200 is not connected to the Ethernet power supply 100, the second control module 2 controls the first control module 1 to power off and is in a state of stopping work, and when the load device 200 is connected to the Ethernet network When the power supply 100 is used, the second control module 2 controls the first control module 1 to be powered on to be in a working state. Then, the path control circuit is turned on through the first control loop according to the connection of the negative terminal to the negative pole of the bus (S200). A preferred embodiment is that the first control loop 24 provides the first control loop effective signal Se1 to the path control circuit 22 according to the terminal voltage Vc of the negative bus Bn rising during the transient phase when the load device 200 is connected. The path control circuit 22 is turned on according to the effective signal Se1 of the first control loop, so as to be electrically coupled to the positive terminal Bp of the first terminal bus at the power terminal 1 - 1 .

然後，根據總線負極接地而改由通過第二控制迴路導通路徑控制電路(S300)。較佳的實施方式為，在總線負極Bn接地而脫離負極端En接入總線負極Bn暫態階段時，直流電壓Vdc可通過總線正極Bp與總線負極Bn提供至負載設備200，以對負載設備200供電。此時，由於總線負極Bn接地，因此第二控制迴路26根據通訊端Ec的第一接腳Ec1所提供的第二控制訊號Sc2而提供第二控制迴路有效訊號Se2至路徑控制電路22。路徑控制電路22根據第二控 制迴路有效訊號Se2而持續導通。最後，根據負極端抽離總線負極而關斷路徑控制電路(S400)。較佳的實施方式為，當負載設備200抽離乙太網路電源供應器100時，總線負極Bn的端點電壓Vc會轉變。供電控制器14根據總線負極Bn的端點電壓Vc電位的轉變而改提供第四控制訊號Sc4至通訊模組16。第一控制迴路24根據總線負極Bn的端點電壓Vc電位的轉變而提供第一控制迴路無效訊號Sn1至路徑控制電路22。第二控制迴路26則是根據第四控制訊號Sc4而提供第二控制迴路無效訊號Sn2至路徑控制電路22。路徑控制電路22根據第一控制迴路無效訊號Sn1與第二控制迴路無效訊號Sn2而關斷路徑控制電路22。 Then, according to the negative pole of the bus being grounded, the path control circuit is switched on through the second control loop ( S300 ). A preferred embodiment is that when the negative terminal Bn of the bus is grounded and the negative terminal En is connected to the negative terminal Bn of the bus during the transient phase, the DC voltage Vdc can be provided to the load device 200 through the positive bus Bp and the negative bus Bn, so as to control the load device 200 powered by. At this time, since the bus negative pole Bn is grounded, the second control loop 26 provides the second control loop effective signal Se2 to the path control circuit 22 according to the second control signal Sc2 provided by the first pin Ec1 of the communication terminal Ec. Path control circuit 22 according to the second control The effective signal Se2 of the control loop is continuously turned on. Finally, the path control circuit is turned off according to the negative terminal being pulled away from the negative terminal of the bus (S400). In a preferred implementation manner, when the load device 200 is disconnected from the Ethernet power supply 100 , the terminal voltage Vc of the negative bus Bn will change. The power supply controller 14 provides the fourth control signal Sc4 to the communication module 16 according to the potential change of the terminal voltage Vc of the negative bus Bn. The first control loop 24 provides the first control loop invalid signal Sn1 to the path control circuit 22 according to the potential change of the terminal voltage Vc of the negative bus Bn. The second control loop 26 provides the second control loop invalid signal Sn2 to the path control circuit 22 according to the fourth control signal Sc4. The path control circuit 22 turns off the path control circuit 22 according to the first control loop deactivation signal Sn1 and the second control loop deactivation signal Sn2.

值得一提，於上述的實施例中，並不限定各個電路中所包含的具體電路元件及其耦接關係，舉凡可達成上述功能的電路、控制器(搭配內部軟體控制)等實施方式，皆應包含在本實施例之範疇當中。此外，於本發明之一實施例中，上述步驟的細部流程可參照圖2所描述的內容，在此不再加以贅述。 It is worth mentioning that in the above-mentioned embodiments, the specific circuit elements and their coupling relationships contained in each circuit are not limited. For example, any circuit, controller (with internal software control) and other implementation modes that can achieve the above-mentioned functions can be used. Should be included in the category of this embodiment. In addition, in an embodiment of the present invention, the detailed flow of the above steps can refer to the content described in FIG. 2 , and will not be repeated here.

惟，以上所述，僅為本發明較佳具體實施例之詳細說明與圖式，惟本發明之特徵並不侷限於此，並非用以限制本發明，本發明之所有範圍應以下述之申請專利範圍為準，凡合於本發明申請專利範圍之精神與其類似變化之實施例，皆應包括於本發明之範疇中，任何熟悉該項技藝者在本發明之領域內，可輕易思及之變化或修飾皆可涵蓋在以下本案之專利範圍。 However, the above description is only a detailed description and drawings of preferred embodiments of the present invention, but the features of the present invention are not limited thereto, and are not intended to limit the present invention. The entire scope of the present invention should be applied for as follows The scope of the patent shall prevail, and all embodiments that conform to the spirit of the patent scope of the present invention and its similar changes shall be included in the scope of the present invention, and any person familiar with the art can easily think of it in the field of the present invention Changes or modifications can be covered by the scope of the following patents in this case.

L:電源線 L: power cord

100:乙太網路電源供應器 100:Ethernet power supply

100-1:第一端部 100-1: first end

100-2:第二端部 100-2: second end

100-3:第三端部 100-3: the third end

Bp:總線正極 Bp: bus positive

Bn:總線負極 Bn: bus negative

1:第一控制模組 1: The first control module

2:第二控制模組 2: The second control module

3:資料轉換模組 3: Data conversion module

200:負載設備 200: load equipment

200-1:設備接口 200-1: Device interface

Ep:正極端 Ep: Positive extreme

En:負極端 En: Negative extreme

300:外部裝置 300: external device

Po:輸出電力 Po: output power

Vdc:直流電壓 Vdc: DC voltage

Sh:第一控制訊號 Sh: first control signal

So:外部訊號 So: external signal

Claims (22)

一種乙太網路電源供應器，通過一總線正極與一總線負極耦接一負載設備的一正極端與一負極端並接收一直流電壓，該乙太網路電源供應器包括：一第一控制模組，包括一電源端，且另一端耦接該總線負極並用以控制該乙太網路電源供應器供給該負載設備的電力；及一第二控制模組，耦接該第一控制模組、該總線正極與該總線負極，且包括：一路徑控制電路，用以導通或關斷該電源端與該總線正極的耦接關係；一第一控制迴路，耦接該總線負極與該路徑控制電路，且用以根據該負極端接入該總線負極的接入暫態階段提供一第一控制訊號而導通該路徑控制電路；及一第二控制迴路，耦接該第一控制模組與該路徑控制電路，且用以根據該第一控制模組提供的一第二控制訊號而導通該路徑控制電路；其中，該總線負極根據該負極端接入或抽離該總線負極而提供該第一控制訊號；該第一控制模組提供該第二控制訊號；該第二控制模組中係用以根據該負極端抽離該總線負極而關斷該路徑控制電路；以及該第一控制模組用以根據該路徑控制電路的導通而處於上電工作狀態，用以根據該路徑控制電路的關斷而處於斷電停止工作狀態。 An Ethernet network power supply is coupled to a positive terminal and a negative terminal of a load device through a bus positive terminal and a bus negative terminal and receives a DC voltage. The Ethernet network power supply includes: a first control A module, including a power supply terminal, and the other terminal is coupled to the negative pole of the bus and used to control the power supplied by the Ethernet power supply to the load device; and a second control module, coupled to the first control module . The positive pole of the bus and the negative pole of the bus, including: a path control circuit, used to turn on or off the coupling relationship between the power supply terminal and the positive pole of the bus; a first control loop, coupled to the negative pole of the bus and the path control circuit circuit, and is used to provide a first control signal to turn on the path control circuit according to the access transient phase when the negative terminal is connected to the negative pole of the bus; and a second control loop, coupled to the first control module and the a path control circuit, and is used to turn on the path control circuit according to a second control signal provided by the first control module; wherein, the negative pole of the bus provides the first Control signal; the first control module provides the second control signal; the second control module is used to turn off the path control circuit according to the negative terminal being separated from the bus negative pole; and the first control module It is used to be in the power-on working state according to the conduction of the path control circuit, and is used to be in the power-off stop working state according to the shutdown of the path control circuit. 如請求項1所述之乙太網路電源供應器，其中該第一控制模組處於上電工作狀態且將該總線負極接地，並脫離接入暫態階段，以通過該總線正極與該總線負極提供該直流電壓至該負載設備。 The Ethernet power supply as described in claim item 1, wherein the first control module is in the power-on working state and grounds the negative pole of the bus, and is out of the access transient phase, so as to pass the positive pole of the bus to the bus The negative electrode provides the DC voltage to the load device. 如請求項2所述之乙太網路電源供應器，其中該第一控制模組於確認該負載設備為有效負載而提供該第二控制訊號且將該總線負極接地，且於確認該負載設備無效負載而提供一第四控制訊號將該總線負極關斷接地。 The Ethernet power supply as described in claim item 2, wherein the first control module provides the second control signal and grounds the negative electrode of the bus when confirming that the load device is a valid load, and confirms that the load device is A fourth control signal is provided to turn off the negative pole of the bus and ground the negative pole of the bus for invalid load. 如請求項3所述之乙太網路電源供應器，其中該第一控制訊號係該總線負極的一端點電壓，該第一控制迴路比較該第一控制訊號與一第一參考電壓，且根據該第一控制訊號與該第一參考電壓比較結果係對應該負極端***該總線負極狀態而導通該路徑控制電路；以及該第二控制迴路比較該第二控制訊號及一第二參考電壓，且根據該第二控制訊號與該第二參考電壓的比較結果係對應該負載設備為有效負載狀態而導通該路徑控制電路。 The Ethernet power supply as described in claim 3, wherein the first control signal is a terminal voltage of the negative pole of the bus, and the first control loop compares the first control signal with a first reference voltage, and according to The comparison result of the first control signal and the first reference voltage corresponds to the negative terminal being inserted into the negative state of the bus to turn on the path control circuit; and the second control loop compares the second control signal and a second reference voltage, and According to the comparison result between the second control signal and the second reference voltage, the path control circuit is turned on corresponding to the load device being in a valid load state. 如請求項4所述之乙太網路電源供應器，其中該第一控制模組於確認該負載設備無效負載而提供該第四控制訊號且將該總線負極中斷接地；該第二控制迴路比較該第四控制訊號及該第二參考電壓；以及根據該第一控制訊號與該第一參考電壓比較結果係對應該負極端抽離該總線負極狀態，且該第四控制訊號與該第二參考電壓的比較結果係對應該負載設備無效負載狀態，該第二控制模組關斷該路徑控制電路。 The Ethernet power supply as described in claim item 4, wherein the first control module provides the fourth control signal and interrupts the negative pole of the bus to ground when confirming that the load device is invalid; the second control loop compares The fourth control signal and the second reference voltage; and according to the comparison result between the first control signal and the first reference voltage, the negative terminal is drawn from the bus negative state, and the fourth control signal and the second reference The voltage comparison result corresponds to the invalid load state of the load device, and the second control module turns off the path control circuit. 如請求項3所述之乙太網路電源供應器，其中該第二控制迴路比較該第二控制訊號及一第二參考電壓，且根據該第二控制訊號與該第二參考電壓的比較結果係對應該負載設備為有效負載狀態而導通該路徑控制電路。 The Ethernet power supply as described in claim 3, wherein the second control loop compares the second control signal with a second reference voltage, and according to the comparison result between the second control signal and the second reference voltage The path control circuit is turned on corresponding to the load device being in a valid load state. 如請求項6所述之乙太網路電源供應器，其中該第一控制模組於確認該負載設備無效負載而提供該第四控制訊號且將該總線負極中斷接地；以及該第二控制迴路比較該第四控制訊號及一第二參考電壓，且該第四控制訊 號與該第二參考電壓的比較結果係對應該負載設備無效負載狀態而關斷該路徑控制電路。 The Ethernet power supply as described in claim 6, wherein the first control module provides the fourth control signal and interrupts the bus negative terminal to ground when confirming that the load device is invalid; and the second control loop comparing the fourth control signal with a second reference voltage, and the fourth control signal The comparison result of the signal and the second reference voltage is corresponding to the invalid load state of the load device and the path control circuit is turned off. 如請求項3所述之乙太網路電源供應器，其中該第一控制迴路係包括一第一開關元件所構成的開關電路；該第一控制訊號係該總線負極的一端點電壓，該第一開關元件根據該負載設備的接入暫態階段的該第一控制訊號而導通，且該第二控制模組根據該第一開關元件的導通而導通該路徑控制電路。 The Ethernet power supply as described in claim 3, wherein the first control loop is a switching circuit composed of a first switching element; the first control signal is a terminal voltage of the negative pole of the bus, and the first control signal is a terminal voltage of the bus negative pole. A switch element is turned on according to the first control signal in the transient state of the load device, and the second control module turns on the path control circuit according to the turn-on of the first switch element. 如請求項3所述之乙太網路電源供應器，其中該第二控制迴路係包括一第二開關元件所構成的開關電路；該第二開關元件收到該第二控制訊號而導通，該第二控制模組根據該第二開關元件的導通而導通該路徑控制電路。 The Ethernet power supply as described in claim 3, wherein the second control loop includes a switching circuit composed of a second switching element; the second switching element is turned on when receiving the second control signal, and the The second control module turns on the path control circuit according to the conduction of the second switch element. 如請求項9所述之乙太網路電源供應器，其中該第一控制模組於確認該負載設備無效負載而提供該第四控制訊號，且該第一控制模組將該總線負極中斷接地；該第二開關元件收到該第四控制訊號而關斷；以及根據該第一控制訊號係對應該負極端抽離該總線負極狀態且該第二開關元件為關斷，該第二控制模組關斷該路徑控制電路。 The Ethernet power supply as described in claim item 9, wherein the first control module provides the fourth control signal when confirming that the load device is invalid, and the first control module interrupts the negative terminal of the bus to ground ; the second switch element is turned off upon receiving the fourth control signal; group turns off the path control circuit. 如請求項3所述之乙太網路電源供應器，其中該第一控制模組包括：一供電控制器，耦接該路徑控制電路與該第二控制模組，且用以根據該路徑控制電路的導通而接收該直流電壓，以處於上電工作狀態而提供該第二控制訊號；及一通訊模組，耦接該供電控制器與該總線負極，且傳輸一第三控制訊號至該總線負極進行交握機制。 The Ethernet power supply as described in claim 3, wherein the first control module includes: a power supply controller, coupled to the path control circuit and the second control module, and used to control the path according to the path The circuit is turned on to receive the DC voltage, so as to provide the second control signal in the power-on working state; and a communication module, which is coupled to the power supply controller and the negative pole of the bus, and transmits a third control signal to the bus The negative pole carries out the handshake mechanism. 如請求項11所述之乙太網路電源供應器，其中該供電控制器透過該通訊模組傳輸該第三控制訊號至該總線負極而進行交握機制並用以於確認為該有效負載而提供該第二控制訊號控制該通訊模組將該總線負極接地，及用以於確認該負載設備無效負載狀態或該負極端抽離該總線負極狀態而提供該第四控制訊號。 The Ethernet power supply as described in claim item 11, wherein the power supply controller transmits the third control signal to the negative pole of the bus through the communication module to perform a handshake mechanism and is used to confirm that it is provided for the payload The second control signal controls the communication module to ground the negative pole of the bus, and is used to provide the fourth control signal for confirming that the load device is in an invalid load state or that the negative terminal is separated from the negative pole state of the bus. 如請求項12所述之乙太網路電源供應器，其中該第一控制訊號係該總線負極的一端點電壓，且根據該第一控制訊號係對應該負極端***該總線負極狀態而導通該路徑控制電路；其中，該第一控制迴路根據該第一控制訊號係對應用以根據該負極端接入該總線負極的接入暫態階段，且該第二控制迴路根據該第二控制訊號係對應該負載設備為有效負載狀態，該第二控制模組導通該路徑控制電路；及該第一控制迴路根據該第一控制訊號係對應脫離接入暫態階段或該負極端抽離該總線負極狀態，且該第二控制迴路根據該第四控制訊號係對應該負載設備無效負載狀態，該第二控制模組關斷該路徑控制電路。 The Ethernet power supply as described in claim 12, wherein the first control signal is a terminal voltage of the negative pole of the bus, and according to the first control signal, the negative terminal is inserted into the negative pole state of the bus to turn on the Path control circuit; wherein, the first control loop corresponds to the access transient phase of the bus negative terminal according to the negative terminal according to the first control signal, and the second control loop is based on the second control signal Corresponding to the load device being in a valid load state, the second control module turns on the path control circuit; and the first control loop is correspondingly separated from the access transient phase or the negative terminal is withdrawn from the bus negative terminal according to the first control signal state, and the second control loop corresponds to the invalid load state of the load device according to the fourth control signal, and the second control module turns off the path control circuit. 如請求項3所述之乙太網路電源供應器，其中該路徑控制電路包括：一路徑開關，一端耦接該總線正極且另一端耦接該電源端；及一驅動開關，一端耦接該路徑開關控制端，且該驅動開關控制端耦接該第一控制迴路與該第二控制迴路；其中，該第一控制迴路與該第二控制迴路用以驅動該路徑開關導通或關斷，且該驅動開關用以驅動該路徑開關導通或關斷；該第一控制迴路根據該負極端接入該總線負極的暫態階段所對應的該第一控制訊號或該第二控制迴路根據第 二控制訊號而導通該驅動開關，且導通狀態的該驅動開關驅動該路徑開關導通，並進一步導通該電源端與該總線正極的耦接關係；及該第二控制模組中的該第一控制迴路與該第二控制迴路係用以根據該負極端抽離該總線負極而關斷該驅動開關，且關斷狀態的該驅動開關驅動該路徑開關關斷，並進一步關斷該電源端與該總線正極的耦接關係。 The Ethernet power supply as described in claim 3, wherein the path control circuit includes: a path switch, one end of which is coupled to the positive pole of the bus and the other end is coupled to the power supply end; and a driving switch, one end of which is coupled to the a path switch control terminal, and the driving switch control terminal is coupled to the first control loop and the second control loop; wherein, the first control loop and the second control loop are used to drive the path switch to be turned on or off, and The drive switch is used to drive the path switch to turn on or off; the first control loop is based on the first control signal corresponding to the transient phase when the negative terminal is connected to the negative pole of the bus or the second control loop is based on the second control loop. Two control signals to conduct the drive switch, and the drive switch in the conduction state drives the path switch to conduct, and further conducts the coupling relationship between the power supply end and the positive pole of the bus; and the first control in the second control module The loop and the second control loop are used to turn off the drive switch according to the negative terminal being pulled away from the negative pole of the bus, and the drive switch in the off state drives the path switch to turn off, and further shuts off the power supply terminal and the Coupling relationship of bus positive pole. 一種乙太網路電源供應器，通過一總線正極與一總線負極耦接一負載設備的一正極端與一負極端並接收一直流電壓，該乙太網路電源供應器包括：一第一控制模組，包括一電源端，且另一端耦接該總線負極並用以控制該乙太網路電源供應器供給該負載設備的電力；及一第二控制模組，耦接該第一控制模組、該總線正極與該總線負極，且包括：一路徑控制電路，用以導通或關斷該電源端與該總線正極的耦接關係；一第一控制迴路，耦接該總線負極與該路徑控制電路，且用以根據該負極端接入該總線負極而提供一第一控制迴路有效訊號觸發該路徑控制電路由關斷狀態進入導通狀態，且該第一控制模組對應為上電工作狀態；及一第二控制迴路，耦接該第一控制模組與該路徑控制電路，且用以根據該負極端抽離該總線負極而提供一第二控制迴路無效訊號觸發該路徑控制電路由導通狀態進入關斷狀態，且該第一控制模組對應為斷電狀態；其中，在該第一控制模組對應為上電工作狀態時，該第一控制模組根據該負極端抽離該總線負極使該第二控制迴路提供該第二控制迴路無效訊號。 An Ethernet network power supply is coupled to a positive terminal and a negative terminal of a load device through a bus positive terminal and a bus negative terminal and receives a DC voltage. The Ethernet network power supply includes: a first control A module, including a power supply terminal, and the other terminal is coupled to the negative pole of the bus and used to control the power supplied by the Ethernet power supply to the load device; and a second control module, coupled to the first control module . The positive pole of the bus and the negative pole of the bus, including: a path control circuit, used to turn on or off the coupling relationship between the power supply terminal and the positive pole of the bus; a first control loop, coupled to the negative pole of the bus and the path control circuit circuit, and is used to provide a first control loop effective signal to trigger the path control circuit to enter the conduction state from the off state according to the negative terminal connected to the bus negative pole, and the first control module is correspondingly in the power-on working state; and a second control loop, which is coupled to the first control module and the path control circuit, and is used to provide a second control loop invalid signal to trigger the path control circuit to turn on according to the negative terminal being separated from the negative pole of the bus Enter the shutdown state, and the first control module is corresponding to the power-off state; wherein, when the first control module is corresponding to the power-on working state, the first control module is separated from the negative terminal of the bus according to the negative terminal Make the second control loop provide the second control loop invalid signal. 如請求項15所述之乙太網路電源供應器，其中該路徑控制電路包括： 一路徑開關，一端耦接該總線正極且另一端耦接該電源端；及一驅動開關，一端耦接該路徑開關控制端，且該驅動開關控制端耦接該第一控制迴路、該第二控制迴路與該路徑開關；其中，該第一控制迴路有效訊號觸發該驅動開關為導通狀態，使該驅動開關驅動該路徑開關為導通狀態，且根據導通狀態的該路徑開關使該驅動開關維持導通狀態，該路徑控制電路對應維持導通該電源端與該總線正極的耦接關係；及該第二控制迴路無效訊號觸發該驅動開關為關斷狀態，使該驅動開關驅動該路徑開關為關斷狀態，且根據關斷狀態的該路徑開關使該驅動開關維持關斷狀態，該路徑控制電路對應維持關斷該電源端與該總線正極的耦接關係。 The Ethernet power supply as described in claim 15, wherein the path control circuit includes: a path switch, one end of which is coupled to the positive pole of the bus and the other end is coupled to the power supply end; and a drive switch, one end of which is coupled to the path switch control end, and the drive switch control end is coupled to the first control loop, the second The control loop and the path switch; wherein, the effective signal of the first control loop triggers the drive switch to be in the conduction state, so that the drive switch drives the path switch to be in the conduction state, and the drive switch is maintained in conduction according to the path switch in the conduction state State, the path control circuit correspondingly maintains the coupling relationship between the power supply terminal and the positive pole of the bus; and the second control loop invalid signal triggers the drive switch to be in the off state, so that the drive switch drives the path switch to be in the off state , and maintain the drive switch in the off state according to the path switch in the off state, and the path control circuit correspondingly maintains off the coupling relationship between the power supply end and the positive pole of the bus. 一種乙太網路電源供應器的省電控制方法，該乙太網路電源供應器接收一直流電壓，且耦接一負載設備的一正極端與一負極端；該乙太網路電源供應器包括一第一控制模組，且該第一控制模組通過一總線正極與一總線負極接收該直流電壓，以及通過該總線負極耦接該負極端，以通過該總線負極提供一第一控制訊號確認該負載設備是否為一有效負載；該省電控制方法包括下列步驟：偵測該負載設備的接入與否而導通或關斷該第一控制模組的一電源端與該總線正極之間的一路徑控制電路；根據該負極端接入該總線負極而通過一第一控制迴路導通該路徑控制電路；根據該總線負極接地而改由通過一第二控制迴路導通該路徑控制電路；及根據該負極端抽離該總線負極而關斷該路徑控制電路。 A power-saving control method for an Ethernet power supply. The Ethernet power supply receives a DC voltage and is coupled to a positive terminal and a negative terminal of a load device; the Ethernet power supply Including a first control module, and the first control module receives the DC voltage through a bus positive pole and a bus negative pole, and couples the negative terminal through the bus negative pole to provide a first control signal through the bus negative pole Confirming whether the load device is an effective load; the power saving control method includes the following steps: detecting whether the load device is connected or not, and turning on or off the connection between a power supply terminal of the first control module and the positive pole of the bus A path control circuit; according to the negative terminal connected to the negative pole of the bus, the path control circuit is turned on through a first control loop; according to the negative pole of the bus is grounded, the path control circuit is turned on through a second control loop; and according to The negative terminal is pulled away from the negative terminal of the bus to turn off the path control circuit. 如請求項17所述之省電控制方法，更包括下列步驟： 該第一控制迴路根據該總線負極的一端點電壓提昇而提供一第一控制迴路有效訊號；該第二控制迴路根據該第一控制模組係處於斷電而停止工作的狀態而提供一第二控制迴路無效訊號；及根據該第一控制迴路有效訊號與該第二控制迴路無效訊號導通該路徑控制電路。 The power-saving control method as described in claim 17 further includes the following steps: The first control loop provides a valid signal of the first control loop according to the boost of a terminal voltage of the bus negative pole; the second control loop provides a second control loop according to the state that the first control module is powered off and stops working control loop invalid signal; and conducting the path control circuit according to the first control loop valid signal and the second control loop invalid signal. 如請求項18所述之省電控制方法，其中該第一控制模組根據該路徑控制電路導通而處於上電且工作狀態，且通過提供該第一控制訊號確認該負載設備是否為該有效負載。 The power-saving control method according to claim 18, wherein the first control module is in a power-on and working state according to the conduction of the path control circuit, and confirms whether the load device is the effective load by providing the first control signal . 如請求項18所述之省電控制方法，其中該第一控制模組於溝通完成而提供一第二控制訊號將該總線負極接地，且該省電控制方法更包括下列步驟：該第一控制迴路根據該總線負極接地而提供一第一控制迴路無效訊號；該第二控制迴路根據該第二控制訊號而提供一第二控制迴路有效訊號；及根據該第一控制迴路無效訊號與該第二控制迴路有效訊號導通該路徑控制電路。 The power-saving control method as described in claim 18, wherein the first control module provides a second control signal to ground the negative electrode of the bus after the communication is completed, and the power-saving control method further includes the following steps: the first control The loop provides a first control loop invalid signal according to the bus negative ground; the second control loop provides a second control loop valid signal according to the second control signal; and according to the first control loop invalid signal and the second The valid signal of the control loop turns on the path control circuit. 如請求項18所述之省電控制方法，其中該第一控制模組根據該負極端抽離該總線負極而提供一第四控制訊號，且該省電控制方法更包括下列步驟：該第一控制迴路根據該總線負極的一端點電壓處於第一電位而提供一第一控制迴路無效訊號；該第二控制迴路根據該第四控制訊號而提供一第二控制迴路無效訊號；及 根據該第一控制迴路無效訊號與該第二控制迴路無效訊號關斷該路徑控制電路。 The power saving control method as described in claim item 18, wherein the first control module provides a fourth control signal according to the negative terminal being separated from the negative pole of the bus, and the power saving control method further includes the following steps: the first The control loop provides a first control loop invalid signal according to the terminal voltage of the negative electrode of the bus being at the first potential; the second control loop provides a second control loop invalid signal according to the fourth control signal; and The path control circuit is turned off according to the first control loop invalid signal and the second control loop invalid signal. 如請求項18所述之省電控制方法，其中該第一控制模組確認該負載設備非為該有效負載而提供一第二控制訊號將該總線負極接地，且控制乙太網路電源供應器提供一默認電力至該負載設備。 The power-saving control method as described in claim 18, wherein the first control module confirms that the load device is not for the effective load and provides a second control signal to ground the negative pole of the bus, and controls the Ethernet power supply Provide a default power to the load device.
TW110145824A 2021-12-08 2021-12-08 Ethernet power supply and method of intelligent power saving control the same TWI779955B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW110145824A TWI779955B (en) 2021-12-08 2021-12-08 Ethernet power supply and method of intelligent power saving control the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW110145824A TWI779955B (en) 2021-12-08 2021-12-08 Ethernet power supply and method of intelligent power saving control the same

Publications (2)

Publication Number Publication Date
TWI779955B true TWI779955B (en) 2022-10-01
TW202324974A TW202324974A (en) 2023-06-16

Family

ID=85462650

Family Applications (1)

Application Number Title Priority Date Filing Date
TW110145824A TWI779955B (en) 2021-12-08 2021-12-08 Ethernet power supply and method of intelligent power saving control the same

Country Status (1)

Country Link
TW (1) TWI779955B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201504240U (en) * 2009-07-09 2010-06-09 杭州华三通信技术有限公司 PoE port circuit and PSE equipment
US7863871B2 (en) * 2006-01-17 2011-01-04 Broadcom Corporation Apparatus and method for monitoring for a maintain power signature (MPS) of a powered device (PD) in a power source equipment (PSE) controller
TW202002572A (en) * 2018-06-15 2020-01-01 飛宏科技股份有限公司 Active/IEEE standards based power over ethernet low standby power circuit architecture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7863871B2 (en) * 2006-01-17 2011-01-04 Broadcom Corporation Apparatus and method for monitoring for a maintain power signature (MPS) of a powered device (PD) in a power source equipment (PSE) controller
CN201504240U (en) * 2009-07-09 2010-06-09 杭州华三通信技术有限公司 PoE port circuit and PSE equipment
TW202002572A (en) * 2018-06-15 2020-01-01 飛宏科技股份有限公司 Active/IEEE standards based power over ethernet low standby power circuit architecture

Also Published As

Publication number Publication date
TW202324974A (en) 2023-06-16

Similar Documents

Publication Publication Date Title
US8687392B2 (en) Power converter with automatic mode switching
US10090770B2 (en) Isolated power converter with output voltage protection
US9019726B2 (en) Power converters with quasi-zero power consumption
WO2010126615A1 (en) Multi-functional bi-directional communication and bias power architecture for power supply control
TWI513168B (en) Power conversion apparatus
TWI746117B (en) Power supply with reduced power consumption and related electronic system
TWI779955B (en) Ethernet power supply and method of intelligent power saving control the same
CN114189155A (en) Power adapter with ultra-low standby power
JP5001316B2 (en) Portable electronic device and its adapter
TWI465917B (en) Bridging device and energy saving method thereof
CN219833818U (en) Power supply switching circuit and electronic equipment
US11953964B2 (en) Ethernet power supply and power saving method of controlling the same
CN216673027U (en) Ethernet power supply
TWI747516B (en) Power converter
TWM626448U (en) Ethernet power supply
CN214900615U (en) Power supply circuit and charger of low-power consumption standby
TWI514154B (en) Bridging device and energy saving method thereof
TW201229707A (en) Power apparatus

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent