TWI393317B - Power over ethernet system having hi-pot isolation and automatic output power adjustment with thermal control - Google Patents
Power over ethernet system having hi-pot isolation and automatic output power adjustment with thermal control Download PDFInfo
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Description
本發明係關於一種網路供電系統，尤指具有高壓絕緣防護與電壓及輸出功率自動調節之網路供電系統。 The invention relates to a network power supply system, in particular to a network power supply system with high voltage insulation protection and automatic adjustment of voltage and output power.
電力於乙太網路(Power over Ethernet,POE)之技術透過一條雙絞線傳輸網路資料與電力於一受電裝置。利用上述之技術時，可將供電設備利用雙絞線連接大量之受電設備，例如網路攝影機。系統架設者可隨意將受電裝置擺放所欲擺設之位置，而不需顧慮附近是否有電源插座，或是另外設置電源線連接該受電設備，可大幅減少受電裝置另外佈設電源線路之成本。 Power over Ethernet (POE) technology transmits network data and power to a powered device over a twisted pair. With the above technology, the power supply device can be connected to a large number of powered devices, such as a network camera, using twisted pairs. The system erector can freely place the power receiving device in the desired position, regardless of whether there is a power outlet nearby, or separately set a power cable to connect the power receiving device, which can greatly reduce the cost of additionally distributing the power line of the power receiving device.
然而，當受電裝置消耗功率到達一定之數目時，該供電設備之升壓電路需轉換大量之功率，會造成升壓電路本身之溫度升高，進而使升壓電路之輸出功率降低，造成所有之受電裝置供電不足，無法穩定的運作。 However, when the power consumption of the power receiving device reaches a certain number, the boosting circuit of the power supply device needs to convert a large amount of power, which causes the temperature of the boosting circuit itself to rise, thereby reducing the output power of the boosting circuit, resulting in all The power receiving device is insufficiently powered and cannot operate stably.
另外，由於供電設備直接以雙絞線供應電力與傳輸資料於該受電裝置，若只要其中一台受電裝置故障、短路或遭遇雷擊等狀況，會產生大量之高壓電傳經由雙絞線傳輸於供電設備，造成供電設備之損壞及後端操作人員發生感電的危險。 In addition, since the power supply device directly supplies power and transmits data to the power receiving device by using a twisted pair cable, if one of the power receiving devices fails, short-circuits or encounters a lightning strike, etc., a large amount of high-voltage power transmission is transmitted via the twisted pair cable. Power supply equipment, causing damage to the power supply equipment and the risk of electric shock to the rear-end operators.
為了改善上述習知之缺點，本發明之目的係提供一種具高壓絕緣防護與電壓及輸出功率自動調節之網路供電系統，其利用一溫度感測器感測變壓及高壓隔離模組之溫 度，並以一處理模組並依據該溫度控制配電模組停止對至少一受電裝置供電，以降低該變壓及高壓隔離模組之溫度，當溫度降低時藉以提高該變壓及高壓隔離模組之輸出功率及效率。另外並於該網路供電系統中設置具高壓絕緣防護(Hi-Pot & Isolation)之裝置，以防止高壓電對該網路供電系統及操作人員造成損害。 In order to improve the above disadvantages, the object of the present invention is to provide a network power supply system with high voltage insulation protection and automatic adjustment of voltage and output power, which uses a temperature sensor to sense the temperature of the transformer and the high voltage isolation module. And controlling the power distribution module to stop supplying power to the at least one power receiving device according to the temperature of the processing module to reduce the temperature of the variable voltage and high voltage isolation module, thereby improving the variable voltage and high voltage isolation mode when the temperature is lowered The output power and efficiency of the group. In addition, a device with high-voltage insulation protection (Hi-Pot & Isolation) is installed in the network power supply system to prevent high-voltage power from causing damage to the network power supply system and operators.
為了達成上述之目的，本發明係提供一種具高壓絕緣防護與電壓及輸出功率自動調節之網路供電系統，其包括：一變壓及高壓隔離模組、一溫度感測器、一配電模組、與一處理模組。該變壓及高壓隔離模組係用以接收一第一電流後輸出一第二電流。該溫度感測器係用以感測該變壓及高壓隔離模組之溫度，以測量出一警戒溫度。該配電模組係與該變壓及高壓隔離模組耦接，以接受該第二電流，並對複數個受電裝置傳送電力。該處理模組係分別與該配電模組及該溫度感測器耦接，並用以讀取該警戒溫度。其中該處理模組依據該警戒溫度控制該配電模組，藉以使該配電模組停止對該等受電裝置之至少一者提供電力。 In order to achieve the above object, the present invention provides a network power supply system with high voltage insulation protection and automatic adjustment of voltage and output power, comprising: a transformer and high voltage isolation module, a temperature sensor, and a power distribution module. And a processing module. The transformer and high voltage isolation module is configured to receive a first current and output a second current. The temperature sensor is configured to sense the temperature of the transformer and the high voltage isolation module to measure a warning temperature. The power distribution module is coupled to the transformer and high voltage isolation module to receive the second current and to transmit power to the plurality of power receiving devices. The processing module is coupled to the power distribution module and the temperature sensor, and is configured to read the warning temperature. The processing module controls the power distribution module according to the warning temperature, so that the power distribution module stops supplying power to at least one of the power receiving devices.
並且更進一步包含一第一信號隔離器，係耦接於該溫度感測器與該處理模組之間、一第二信號隔離器，係耦接於該配電模組與該處理模組之間、以及一高壓隔離模組，係耦接於”變壓及高壓隔離”模組與處理模組之間，以阻隔兩者間之高壓電傳輸。 And further comprising a first signal isolator coupled between the temperature sensor and the processing module, and a second signal isolator coupled between the power distribution module and the processing module And a high voltage isolation module coupled between the "transformation and high voltage isolation" module and the processing module to block high voltage transmission between the two.
綜上所述，本發明可於藉由停止供應不常使用或不具重要性之受電裝置電力，以使得其他正常運作之較高優先及重要之受電裝置具有足夠充足之電力，能穩定的運作 ，並於”變壓及高壓隔離”模組之溫度逐漸降低後，恢復之前停止供電之受電裝置，以使本發明具有電壓自動調整及輸出功率依據操作溫度自動調節輸出之功能。另藉由上述之信號隔離器、高壓隔離模組，以使本發明具有高壓絕緣防護之功能，以防止供電設備之損壞及後端操作人員感電危險。 In summary, the present invention can stabilize the operation of other high-priority and important power-receiving devices that are normally operated and have sufficient power by stopping the supply of power of the power-receiving device that is infrequently used or not important. After the temperature of the "transformation and high voltage isolation" module is gradually reduced, the power receiving device that stops the power supply is restored, so that the invention has the functions of automatic voltage adjustment and automatic output output adjustment according to the operating temperature. In addition, the signal isolator and the high voltage isolation module are used to enable the present invention to have the function of high voltage insulation protection to prevent damage to the power supply equipment and danger to the rear end operator.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。 The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
請參閱第一圖，係本發明之具高壓絕緣防護與電壓及輸出功率自動調節之網路供電系統1000圖。其中該網路供電系統1000係可使用電力於乙太網路(Power over Ethernet,POE)之技術透過一條2對或4對雙絞線傳輸網路資料與電力於一受電裝置2000。其中該受電裝置2000可為一具有網路通訊功能之受電裝置2000，其可為一網路攝影機(IP camera)、網路電話機(VoIp phone)、無線網路基地台(Wireless AP)、全球互通微波存取設備(WiMAX)等裝置，但不以上述之裝置為限。 Please refer to the first figure, which is a diagram of a network power supply system 1000 with high voltage insulation protection and automatic adjustment of voltage and output power. The network power supply system 1000 can transmit network data and power to a power receiving device 2000 through a 2-pair or 4-pair twisted pair cable using power over Ethernet (POE) technology. The power receiving device 2000 can be a power receiving device 2000 with a network communication function, which can be an IP camera, a VoIp phone, a wireless network base station (Wireless AP), and a global intercommunication device. A device such as a microwave access device (WiMAX), but not limited to the above device.
該網路供電系統1000係包含一變壓及高壓隔離模組100、一配電模組200、一網路模組300、複數個收發模組310、複數個網路信號輸出隔離器320、複數個乙太網路供電信號輸出隔離器400、一溫度感測器500、與一處理模組600。 The network power supply system 1000 includes a transformer and high voltage isolation module 100, a power distribution module 200, a network module 300, a plurality of transceiver modules 310, a plurality of network signal output isolators 320, and a plurality of The Ethernet power supply signal output isolator 400, a temperature sensor 500, and a processing module 600.
該變壓及高壓隔離模組100係係用以接收一第一電流I1，並將該第一電流I1之電壓轉換後輸出一第二電流I2。其中該第一電流I1可為一直流電或一交流電(AC)，該交 流電之電壓為80V至240V，頻率50或60Hz，該第二電流I2經由該變壓及高壓隔離模組100轉換後可為一直流電。於本實施例中該第一電流I1係可為一直流電，其電壓範圍為之電壓值係介於12V至70V，該第二電流I2亦為一直流電，其電壓值係介於48V至60V。該變壓及高壓隔離模組100係可為一直流升壓電路，舉例而言，該第一電流I1之電壓值為24V，經由該變壓及高壓隔離模組100升壓後該第二電流I2之電壓值可為60V。該變壓及高壓隔離模組100可具有高壓絕緣之功能，以隔絕高壓電自圖中第二電流I2側進入第一電流I1側或是由第一電流I1側進入第二電流I2側，進而隔絕高壓電進入配電模組200及該處理模組600，或是隔離自網路傳輸線L1傳導進入的高壓，如高壓突波(surge)或是雷擊感應信號(Lightning)，以避免造成系統損壞及人員傷害。 The transformer and high voltage isolation module 100 is configured to receive a first current I1 and convert the voltage of the first current I1 to output a second current I2. Wherein the first current I1 can be a continuous current or an alternating current (AC), the intersection The voltage of the galvanic current is 80V to 240V, and the frequency is 50 or 60 Hz. The second current I2 can be continuously galvanically converted after being converted by the transformer and the high voltage isolation module 100. In the embodiment, the first current I1 can be a continuous current, and the voltage range is such that the voltage value is between 12V and 70V, and the second current I2 is also continuously flowing, and the voltage value is between 48V and 60V. The voltage swing and high voltage isolation module 100 can be a DC current boosting circuit. For example, the voltage value of the first current I1 is 24V, and the second current is boosted by the voltage transformer and the high voltage isolation module 100. The voltage value of I2 can be 60V. The transformer and high voltage isolation module 100 can have the function of high voltage insulation to isolate the high voltage from the second current I2 side of the figure into the first current I1 side or from the first current I1 side to the second current I2 side. In turn, the high voltage electricity is isolated from the power distribution module 200 and the processing module 600, or is isolated from the high voltage transmitted from the network transmission line L1, such as a high voltage surge or a lightning strike signal (Lightning) to avoid causing the system. Damage and personal injury.
本發明所述之高壓電之產生主要可有三個原因：一為電力系統負載切換所產生的切換突波(Switching Surge)；一為自然界所產生的，如閃電直接或間接擊中建築物所產生的閃電突波(Lightning Surge)，另一為經由短路或是供電故障產生之高壓電。該瞬間高壓電之電壓值可高達數千伏遠大於第二電流I2之電壓值，因此會對本發明之網路供電系統1000及受電裝置2000造成損害並造成使用人發生感電危險及其相關設備損害。因此若該傳輸線L1線路遭受雷擊感電產生高壓電經由該變壓及高壓隔離模組100和高壓隔離800模組可將高壓電隔絕。 The high-voltage power generation of the present invention can be mainly caused by three reasons: one is a switching surge generated by power system load switching; the other is generated by nature, such as lightning directly or indirectly hitting a building. The resulting Lightning Surge, the other is a high voltage generated by a short circuit or a power failure. The voltage value of the instantaneous high-voltage power can be up to several thousand volts and is greater than the voltage value of the second current I2, thereby causing damage to the network power supply system 1000 and the power receiving device 2000 of the present invention and causing the user to have a risk of electric shock and related equipment. damage. Therefore, if the transmission line L1 line is subjected to lightning strikes to generate high voltage, the high voltage power can be insulated by the transformer and high voltage isolation module 100 and the high voltage isolation 800 module.
上述之高壓絕緣之功能，於習知技術中係具有多種方法 達成，於本發明中並不侷限為何種方法，由於該高壓絕緣係為一習知技術，在此亦不加以累述。 The above-mentioned functions of high-voltage insulation have various methods in the prior art. In the present invention, it is not limited to what kind of method, and since the high-voltage insulation is a conventional technique, it will not be described here.
該配電模組200係與該變壓及高壓隔離模組100、該乙太網路供電信號輸出隔離器400、與該處理模組600耦接，該配電模組200係用以接收該第二電流I2，以將該第二電流I2透過該乙太網路供電信號輸出隔離器400配送電力於該等受電裝置2000。 The power distribution module 200 is coupled to the transformer and high voltage isolation module 100, the Ethernet power supply signal output isolator 400, and the processing module 600. The power distribution module 200 is configured to receive the second The current I2 is used to distribute the second current I2 to the power receiving device 2000 through the Ethernet power supply signal output isolator 400.
該網路模組300係可與網際網路(network)及處理模組600耦接，以於該受電裝置2000與網際網路間相互傳輸網路資料，該網路模組300所接收之網路資料可於該處理模組600中處理，以透過網際網路對本發明之網路供電系統1000作一控制，例如對於該配電模組200之關閉與啟動。該收發模組310(transceiver)係可與該網路模組300及該乙太網路供電信號輸出隔離器400耦接，該收發模組310可傳送接收由與其耦接之受電裝置2000之網路資料並傳送於網路模組300，或是接收由該網路模組300之網路資料傳送於與其耦接之受電裝置2000。 The network module 300 is coupled to the network and the processing module 600 for transmitting network data between the power receiving device 2000 and the Internet, and the network module 300 receives the network. The routing data can be processed in the processing module 600 to provide control of the network powering system 1000 of the present invention over the Internet, such as the shutdown and activation of the power distribution module 200. The transceiver module 310 can be coupled to the network module 300 and the Ethernet power supply signal output isolator 400. The transceiver module 310 can transmit and receive a network of the power receiving device 2000 coupled thereto. The path data is transmitted to the network module 300 or received by the network device 300 to be connected to the power receiving device 2000 coupled thereto.
該乙太網路供電信號輸出隔離器400，係耦接於該網路模組300與該配電模組200，用以從該網路模組300接收該網路資料與從該配電模組200接收電力，並將該網路資料與該電力透過一條傳輸線L1，傳輸於與其耦接之受電裝置2000。其中該傳輸線L1係可為一雙絞線，該雙絞線係可為一乙太網路線。 The Ethernet power supply signal output isolator 400 is coupled to the network module 300 and the power distribution module 200 for receiving the network data from the network module 300 and the power distribution module 200. The power is received, and the network data and the power are transmitted through a transmission line L1 to the power receiving device 2000 coupled thereto. The transmission line L1 can be a twisted pair, and the twisted pair can be an Ethernet route.
該乙太網路供電信號輸出隔離器400另可用以隔離由該受電裝置2000所傳送之高壓電，進入該配電模組200或是該收發模組310。該乙太網路供電信號輸出隔離器400之高 壓隔離之技術，如前所述，亦可為一習知技術。 The Ethernet power supply signal output isolator 400 can also be used to isolate the high voltage power transmitted by the power receiving device 2000 into the power distribution module 200 or the transceiver module 310. The Ethernet power supply signal output isolator 400 is high The technique of pressure isolation, as described above, can also be a conventional technique.
該網路信號輸出隔離器320係可與收發模組310a與網路模組300耦接，並傳送接收網際網路資料予收發模組310a，並透過收發模組310a將資料傳送接收於網路模組300，以達到本網路供電系統1000可與網際網路互連功能。 The network signal output isolator 320 is coupled to the transceiver module 310a and the network module 300, and transmits and receives the Internet data to the transceiver module 310a, and transmits and receives data to and from the network through the transceiver module 310a. The module 300 is configured to achieve the interconnection function between the network power supply system 1000 and the Internet.
該網路信號輸出隔離器320另可用以隔離由該網際網路所傳送之高壓電，進入該收發模組310a與該網路模組300。該網路信號輸出隔離器320之高壓隔離之技術，如前所述，亦可為一習知技術。 The network signal output isolator 320 can also be used to isolate the high voltage power transmitted by the network into the transceiver module 310a and the network module 300. The high voltage isolation technique of the network signal output isolator 320, as previously described, can also be a conventional technique.
該溫度感測器500係可於該變壓及高壓隔離模組100耦接，並用以感測該變壓及高壓隔離模組100之溫度，以測量出一警戒溫度。該溫度感測器500於習知中亦有多種可感測溫度之方法，於本發明中並不侷限為何種方法。 The temperature sensor 500 is coupled to the variable voltage and high voltage isolation module 100 and senses the temperature of the variable voltage and high voltage isolation module 100 to measure a warning temperature. The temperature sensor 500 also has various methods for sensing temperature in the prior art, and is not limited to which method in the present invention.
該處理模組600係可為一中央處理晶片及其相關電路所構成，該處理模組600係分別與該配電模組200、該溫度感測器500與該網路模組300耦接，並用以讀取該警戒溫度。該處理模組600依據該警戒溫度控制該配電模組200，藉以使該配電模組200停止對該等受電裝置2000之至少一者提供電力。 The processing module 600 is configured to be a central processing chip and its associated circuit. The processing module 600 is coupled to the power distribution module 200, the temperature sensor 500, and the network module 300, respectively. To read the alert temperature. The processing module 600 controls the power distribution module 200 according to the warning temperature, so that the power distribution module 200 stops supplying power to at least one of the power receiving devices 2000.
由於當使用過多之受電裝置2000或是使用時間過長等因素，會使該變壓及高壓隔離模組100轉換第一電流I1之電流量升高，進而使變壓及高壓隔離模組100之溫度升高。由於變壓及高壓隔離模組100之溫度升高，會造成變壓及高壓隔離模組100之轉換功率及效率下降，舉例而言，若該變壓及高壓隔離模組100轉換1000安培之電流，於正常溫度下可轉換出900安培之電流，但隨者變壓及高壓隔離 模組100之溫度升高，所轉換出之電流量會遞減，進而不能提供所有之受電裝置2000足夠之電力，因此會造成所有之受電裝置2000之運作不穩定。 Due to factors such as excessive use of the power receiving device 2000 or excessive use time, the amount of current converted by the transformer and high voltage isolation module 100 to the first current I1 is increased, thereby enabling the transformer and high voltage isolation module 100. The temperature rises. Due to the temperature rise of the transformer and the high voltage isolation module 100, the conversion power and efficiency of the transformer and high voltage isolation module 100 are reduced. For example, if the transformer and high voltage isolation module 100 converts 1000 amps of current , can convert 900 amps of current at normal temperature, but with variable voltage and high voltage isolation When the temperature of the module 100 rises, the amount of current to be converted is decremented, and thus all of the power receiving devices 2000 are not provided with sufficient power, and thus all the power receiving devices 2000 are unstable in operation.
本發明可於處理模組600中設定於該警戒溫度於一安全數值以上，於不同之溫度下所需停止供應受電裝置2000電力之數量。由於該變壓及高壓隔離模組100所需轉換之電流量減少，因此該變壓及高壓隔離模組100之溫度會逐漸降低，並進而逐漸提高對電壓及電流之輸出功率及效率。 The present invention can be set in the processing module 600 to set the alarm temperature above a safe value, and to stop the supply of the power of the power receiving device 2000 at different temperatures. Since the amount of current required for the conversion and high voltage isolation module 100 is reduced, the temperature of the transformer and high voltage isolation module 100 is gradually reduced, and the output power and efficiency of the voltage and current are gradually increased.
當該溫度感測器500所感測之警戒溫度逐漸下降時，該處理模組600可依據設定逐一提供受電裝置2000電力，當該溫度感測器500所感測之該警戒溫度在一安全數值以下時，該處理模組600控制該配電模組200自動對所有該等受電裝置2000恢復提供電力。 When the warning temperature sensed by the temperature sensor 500 gradually decreases, the processing module 600 can provide the power of the power receiving device 2000 one by one according to the setting, when the temperature sensed by the temperature sensor 500 is below a safe value. The processing module 600 controls the power distribution module 200 to automatically restore power to all of the power receiving devices 2000.
另外，每一受電裝置2000可由處理模組600設定使用優先順序，當該處理模組600控制配電模組200停止對該等受電裝置2000之至少一者提供電力時，優先從使用優先順序較低者開始停止供應電力。 In addition, each power receiving device 2000 can be set to use priority by the processing module 600. When the processing module 600 controls the power distribution module 200 to stop providing power to at least one of the power receiving devices 2000, the priority is lower from the priority of use. The person began to stop supplying electricity.
因此本發明可於藉由停止供應不常使用或不具重要性之受電裝置2000電力，以使得其他正常運作之較高優先及重要之受電裝置2000具有足夠充足之電力，能穩定的運作，並於變壓及高壓隔離模組100之溫度逐漸降低後，恢復之前停止供電之受電裝置，以使本發明具有電壓及輸出功率自動調節之功能，以防止供電設備之損壞及後端操作人員感電危險。 Therefore, the present invention can stabilize the operation of the power-receiving device 2000, which is infrequently used or not of importance, so that other higher-priority and important power-receiving devices 2000 that are normally operated have sufficient power to operate stably. After the temperature of the transformer and high-voltage isolation module 100 is gradually lowered, the power receiving device that stops power supply is restored, so that the present invention has the functions of automatic adjustment of voltage and output power to prevent damage of the power supply equipment and danger of electric shock to the rear-end operator.
上述對於處理模組600之設定，係可經由網路模組300傳 送操作指令於該處理模組600加以設定，以使本發明之網路供電系統1000具有遠端操作之功能。 The above settings for the processing module 600 can be transmitted via the network module 300. The send operation command is set in the processing module 600 to enable the network power supply system 1000 of the present invention to have the function of remote operation.
於本發明中可於更進一步包含複數個信號隔離器700與至少一高壓隔離模組800，信號隔離器700(第一信號隔離器)係可耦接於該溫度感測器500與該處理模組600之間，信號隔離器700a(第二信號隔離器)係耦接於該配電模組200與該處理模組600之間。上述之信號隔離器700、700a並不限制裝設於上述位置。 In the present invention, the signal isolator 700 (first signal isolator) can be coupled to the temperature sensor 500 and the processing module. The signal isolators 700a (second signal isolators) are coupled between the power distribution module 200 and the processing module 600. The signal isolators 700, 700a described above are not limited to being installed at the above positions.
上述之信號隔離器700、700a可由光耦合器(photo coupler)所構成，光耦合器之運作原理為由光電耦合器之輸入端加電信號使發光源發光，光的強度取決於激勵電流的大小，此光照射到封裝在一起的受光器上後，因光電效應而產生了光電流，由受光器輸出端引出。由於光電耦合器之輸入端與輸出端彼此絕緣，因此產生電化隔離(galvanic isolation)之效果，能隔絕高壓電以保護電路迴路，削弱環境雜訊。上述之光耦合器係為一習知技術，在此不作更進一步解釋。 The above-mentioned signal isolators 700, 700a may be constituted by a photo coupler. The operation principle of the optical coupler is that the light source is illuminated by the input signal of the input end of the photocoupler, and the intensity of the light depends on the magnitude of the excitation current. After the light is irradiated onto the light-receivers packaged together, a photocurrent is generated due to the photoelectric effect, which is led out by the output end of the light receiver. Since the input end and the output end of the optocoupler are insulated from each other, the effect of galvanic isolation is generated, and the high voltage power can be insulated to protect the circuit loop and weaken the environmental noise. The optical coupler described above is a conventional technique and will not be further explained herein.
高壓隔離模組800係耦接於變壓及高壓隔離模組100與處理模組600之間，以阻隔兩者間之高壓電傳輸。上述之高壓隔離模組800並不限制裝設於上述位置。該高壓隔離模組800係隔離高壓電之技術於習知上係可具有多種，於本發明並不予以限制。 The high voltage isolation module 800 is coupled between the transformer and high voltage isolation module 100 and the processing module 600 to block high voltage electrical transmission between the two. The high voltage isolation module 800 described above is not limited to being installed at the above position. The high-voltage isolation module 800 is a technique for isolating the high-voltage power. The technology can be variously used in the prior art, and is not limited in the present invention.
藉由上述之信號隔離器700、高壓隔離模組800與變壓及高壓隔離模組100、網路信號輸出隔離器320及乙太網路供電信號輸出隔離器400之具高壓電隔離功能，可使本發明之網路供電系統1000具有高壓絕緣防護之功能。 The high-voltage electrical isolation function of the signal isolator 700, the high-voltage isolation module 800, the transformer and high-voltage isolation module 100, the network signal output isolator 320, and the Ethernet power supply signal output isolator 400 are provided. The network power supply system 1000 of the present invention can have the function of high voltage insulation protection.
藉由以上較佳具體實施例之詳述，係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。 The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.
1000‧‧‧網路供電系統 1000‧‧‧Network Power System
100‧‧‧變壓及高壓隔離模組 100‧‧‧Transformation and high voltage isolation module
200‧‧‧配電模組 200‧‧‧Power distribution module
300‧‧‧網路模組 300‧‧‧Network Module
310、310a‧‧‧收發模組 310, 310a‧‧‧ transceiver module
320‧‧‧網路信號輸出隔離器 320‧‧‧Network signal output isolator
400‧‧‧乙太網路供電信號輸出隔離器 400‧‧‧Ethernet Powered Signal Output Isolator
500‧‧‧溫度感測器 500‧‧‧temperature sensor
600‧‧‧處理模組 600‧‧‧Processing module
700、700a‧‧‧信號隔離器 700, 700a‧‧‧Signal Isolator
800‧‧‧高壓隔離模組 800‧‧‧High voltage isolation module
2000‧‧‧受電裝置 2000‧‧‧Power-receiving device
I1‧‧‧第一電流 I1‧‧‧First current
I2‧‧‧第二電流 I2‧‧‧second current
L1‧‧‧傳輸線 L1‧‧‧ transmission line
第一圖，係本發明之具高壓絕緣防護與電壓及輸出功率自動調節之網路供電系統圖。 The first figure is a diagram of the network power supply system with high voltage insulation protection and automatic adjustment of voltage and output power according to the present invention.
1000‧‧‧網路供電系統 1000‧‧‧Network Power System
100‧‧‧變壓及高壓隔離模組 100‧‧‧Transformation and high voltage isolation module
200‧‧‧配電模組 200‧‧‧Power distribution module
300‧‧‧網路模組 300‧‧‧Network Module
310、310a‧‧‧收發模組 310, 310a‧‧‧ transceiver module
320‧‧‧網路信號輸出隔離器 320‧‧‧Network signal output isolator
400‧‧‧乙太網路供電信號輸出隔離器 400‧‧‧Ethernet Powered Signal Output Isolator
500‧‧‧溫度感測器 500‧‧‧temperature sensor
600‧‧‧處理模組 600‧‧‧Processing module
700、700a‧‧‧信號隔離器 700, 700a‧‧‧Signal Isolator
800‧‧‧高壓隔離模組 800‧‧‧High voltage isolation module
2000‧‧‧受電裝置 2000‧‧‧Power-receiving device
I1‧‧‧第一電流 I1‧‧‧First current
I2‧‧‧第二電流 I2‧‧‧second current
L1‧‧‧傳輸線 L1‧‧‧ transmission line
Claims (21)
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| TW98117690A TWI393317B (en) | 2009-05-27 | 2009-05-27 | Power over ethernet system having hi-pot isolation and automatic output power adjustment with thermal control |
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| TW98117690A TWI393317B (en) | 2009-05-27 | 2009-05-27 | Power over ethernet system having hi-pot isolation and automatic output power adjustment with thermal control |
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| TWI393317B true TWI393317B (en) | 2013-04-11 |
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| US7500118B2 (en) * | 2005-03-28 | 2009-03-03 | Akros Silicon Inc. | Network device with power potential rectifier |
| US20070019445A1 (en) * | 2005-07-21 | 2007-01-25 | Matthew Blaha | Switch with fully isolated power sourcing equipment control |
| TW200835113A (en) * | 2006-10-26 | 2008-08-16 | Cooper Technologies Co | Electrical power system control communications network |
| TW200845647A (en) * | 2006-12-19 | 2008-11-16 | Broadcom Corp | System and method for controlling power delivered to a powered device based on cable characteristics |
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