TWI574494B - Input-voltage-off detection apparatus and power supply with input-voltage-off detection apparatus - Google Patents
Input-voltage-off detection apparatus and power supply with input-voltage-off detection apparatus Download PDFInfo
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本發明係有關於一種偵測裝置及電源供應器，特別是一種輸入電壓斷電偵測裝置及具有輸入電壓斷電偵測裝置之電源供應器。The invention relates to a detecting device and a power supply, in particular to an input voltage power-off detecting device and a power supply device with an input voltage power-off detecting device.
相關技術之切換式電源供應器的輸出電壓具有保持時間（hold-up time）的設計；相關技術之輸入電壓斷電偵測裝置偵測到輸入電壓（例如市電）斷電時，相關技術之輸入電壓斷電偵測裝置會通知電子設備，使得電子設備可在保持時間結束前將資料備份儲存並做好關機準備。因此，相關技術之輸入電壓斷電偵測裝置非常的重要；然而，相關技術之輸入電壓斷電偵測裝置的缺點為功率損耗過高。The output voltage of the related art switching power supply has a hold-up time design; when the input voltage detection device of the related art detects the input voltage (for example, the mains) is powered off, the related technology input The voltage power-off detection device notifies the electronic device that the electronic device can back up the data and prepare for shutdown before the end of the hold time. Therefore, the related art input voltage power-off detecting device is very important; however, the related art input voltage power-off detecting device has a disadvantage of excessive power loss.
為改善上述習知技術之缺點，本發明之目的在於提供一種輸入電壓斷電偵測裝置。In order to improve the above disadvantages of the prior art, it is an object of the present invention to provide an input voltage power failure detecting device.
為改善上述習知技術之缺點，本發明之又一目的在於提供一種具有輸入電壓斷電偵測裝置之電源供應器。In order to improve the above disadvantages of the prior art, it is still another object of the present invention to provide a power supply having an input voltage power-off detecting device.
為達成本發明之上述目的，本發明之輸入電壓斷電偵測裝置包含：一電壓調整單元，該電壓調整單元用於接收輸入電壓；一時間延遲單元，該時間延遲單元電性連接至該電壓調整單元並利用輸入電壓產生直流電壓；一電壓箝制單元，該電壓箝制單元電性連接至該電壓調整單元及該時間延遲單元；一輔助電壓放電開關單元，該輔助電壓放電開關單元電性連接至該電壓調整單元、該時間延遲單元、該電壓箝制單元及一輔助電壓線圈；及一隔離通知單元，該隔離通知單元電性連接至該輔助電壓線圈、該輔助電壓放電開關單元及電子設備。其中，在輸入電壓斷電之後，儲存於該時間延遲單元內的直流電壓經由該電壓調整單元進行放電；當直流電壓下降至一預設電壓時，該輔助電壓放電開關單元導通，使得該輔助電壓線圈傳送工作電壓至該隔離通知單元；在該隔離通知單元接收到工作電壓之後，該隔離通知單元通知電子設備輸入電壓斷電。To achieve the above object of the present invention, the input voltage power-off detecting apparatus of the present invention comprises: a voltage adjusting unit for receiving an input voltage; and a time delay unit electrically connected to the voltage The auxiliary unit is electrically connected to the auxiliary voltage discharge switch unit, and the auxiliary voltage discharge switch unit is electrically connected The voltage adjustment unit, the time delay unit, the voltage clamping unit and an auxiliary voltage coil; and an isolation notification unit electrically connected to the auxiliary voltage coil, the auxiliary voltage discharge switch unit and the electronic device. After the input voltage is powered off, the DC voltage stored in the time delay unit is discharged through the voltage adjustment unit; when the DC voltage drops to a preset voltage, the auxiliary voltage discharge switch unit is turned on, so that the auxiliary voltage is The coil transmits an operating voltage to the isolation notification unit; after the isolation notification unit receives the operating voltage, the isolation notification unit notifies the electronic device that the input voltage is powered off.
為達成本發明之上述又一目的，本發明之具有輸入電壓斷電偵測裝置之電源供應器包含：一輸入電壓斷電偵測裝置；一輔助電壓線圈，該輔助電壓線圈電性連接至該輸入電壓斷電偵測裝置；一主轉換器，該主轉換器電性連接至該輔助電壓線圈；一脈波寬度調變控制器，該脈波寬度調變控制器電性連接至該輔助電壓線圈及該主轉換器；一初級側濾波電容，該初級側濾波電容電性連接至該主轉換器；一橋式整流器，該橋式整流器電性連接至該初級側濾波電容、該脈波寬度調變控制器及該輔助電壓線圈；一輸出端整流濾波器，該輸出端整流濾波器電性連接至該主轉換器及電子設備；及一回授電路，該回授電路電性連接至該輸出端整流濾波器、電子設備及該脈波寬度調變控制器。其中，該輸入電壓斷電偵測裝置包含：一電壓調整單元，該電壓調整單元用於接收輸入電壓；一時間延遲單元，該時間延遲單元電性連接至該電壓調整單元並利用輸入電壓產生直流電壓；一電壓箝制單元，該電壓箝制單元電性連接至該電壓調整單元及該時間延遲單元；一輔助電壓放電開關單元，該輔助電壓放電開關單元電性連接至該電壓調整單元、該時間延遲單元、該電壓箝制單元及該輔助電壓線圈；及一隔離通知單元，該隔離通知單元電性連接至該輔助電壓線圈、該輔助電壓放電開關單元及電子設備。其中，在輸入電壓斷電之後，儲存於該時間延遲單元內的直流電壓經由該電壓調整單元進行放電；當直流電壓下降至一預設電壓時，該輔助電壓放電開關單元導通，使得該輔助電壓線圈傳送工作電壓至該隔離通知單元；在該隔離通知單元接收到工作電壓之後，該隔離通知單元通知電子設備輸入電壓斷電。In order to achieve the above-mentioned other object of the present invention, a power supply device with an input voltage power-off detecting device of the present invention includes: an input voltage power-off detecting device; an auxiliary voltage coil, the auxiliary voltage coil is electrically connected to the An input voltage power-off detecting device; a main converter electrically connected to the auxiliary voltage coil; a pulse width modulation controller, the pulse width modulation controller being electrically connected to the auxiliary voltage a coil and the main converter; a primary side filter capacitor, the primary side filter capacitor is electrically connected to the main converter; a bridge rectifier, the bridge rectifier is electrically connected to the primary side filter capacitor, the pulse width modulation a variable controller and the auxiliary voltage coil; an output rectifier filter, the output rectifier filter is electrically connected to the main converter and the electronic device; and a feedback circuit, the feedback circuit is electrically connected to the output End rectification filter, electronic device and the pulse width modulation controller. The input voltage power-off detecting device comprises: a voltage adjusting unit, configured to receive an input voltage; a time delay unit electrically connected to the voltage adjusting unit and generating a direct current by using the input voltage a voltage clamping unit, the voltage clamping unit is electrically connected to the voltage adjusting unit and the time delay unit; an auxiliary voltage discharging switch unit, the auxiliary voltage discharging switch unit is electrically connected to the voltage adjusting unit, and the time delay is The unit, the voltage clamping unit and the auxiliary voltage coil; and an isolation notification unit electrically connected to the auxiliary voltage coil, the auxiliary voltage discharge switch unit and the electronic device. After the input voltage is powered off, the DC voltage stored in the time delay unit is discharged through the voltage adjustment unit; when the DC voltage drops to a preset voltage, the auxiliary voltage discharge switch unit is turned on, so that the auxiliary voltage is The coil transmits an operating voltage to the isolation notification unit; after the isolation notification unit receives the operating voltage, the isolation notification unit notifies the electronic device that the input voltage is powered off.
本發明之功效在於提供一種具有低功率損耗之輸入電壓斷電偵測裝置。The effect of the present invention is to provide an input voltage power-off detecting device with low power loss.
有關本發明的詳細說明及技術內容，請參閱以下的詳細說明和附圖說明如下，而附圖與詳細說明僅作為說明之用，並非用於限制本發明。The detailed description and the technical description of the present invention are to be understood as the
請參考圖1，其係為本發明之輸入電壓斷電偵測裝置方塊圖。一輸入電壓斷電偵測裝置10包含一電壓調整單元102、一時間延遲單元104、一電壓箝制單元106、一輔助電壓放電開關單元108、一隔離通知單元110、一輔助電壓放電電阻112及一上拉電阻126。該電壓調整單元102包含一第一分壓電阻114及一第二分壓電阻116。該輔助電壓放電開關單元108包含一第一電晶體開關118、一第二電晶體開關120、一第一電阻122及一第二電阻124。Please refer to FIG. 1, which is a block diagram of an input voltage power-off detecting device of the present invention. An input voltage power failure detecting device 10 includes a voltage adjusting unit 102, a time delay unit 104, a voltage clamping unit 106, an auxiliary voltage discharging switch unit 108, an isolation notification unit 110, an auxiliary voltage discharge resistor 112, and a Pull-up resistor 126. The voltage adjusting unit 102 includes a first voltage dividing resistor 114 and a second voltage dividing resistor 116. The auxiliary voltage discharge switch unit 108 includes a first transistor switch 118, a second transistor switch 120, a first resistor 122 and a second resistor 124.
該時間延遲單元104可為例如但本發明不限定為一電容；該電壓箝制單元106可為例如但本發明不限定為一齊納二極體；該隔離通知單元110可為例如但本發明不限定為一光耦合器。The time delay unit 104 can be, for example, but the invention is not limited to a capacitor; the voltage clamping unit 106 can be, for example, but the invention is not limited to a Zener diode; the isolation notification unit 110 can be, for example, but not limited by the invention. It is an optocoupler.
該時間延遲單元104電性連接至該電壓調整單元102；該電壓箝制單元106電性連接至該電壓調整單元102及該時間延遲單元104；該輔助電壓放電開關單元108電性連接至該電壓調整單元102、該時間延遲單元104、該電壓箝制單元106及一電源供應器30之一輔助電壓線圈302；該隔離通知單元110電性連接至該輔助電壓線圈302、該輔助電壓放電開關單元108及一電子設備40；該輔助電壓放電電阻112電性連接至該隔離通知單元110及該輔助電壓放電開關單元108；該上拉電阻126電性連接至該隔離通知單元110、該電源供應器30及該電子設備40；該第一分壓電阻114電性連接至該時間延遲單元104、該電壓箝制單元106及該輔助電壓放電開關單元108；該第二分壓電阻116電性連接至該時間延遲單元104、該電壓箝制單元106、該輔助電壓放電開關單元108及該第一分壓電阻114；該第一電晶體開關118電性連接至該電壓調整單元102、該時間延遲單元104、該電壓箝制單元106及該輔助電壓線圈302；該第二電晶體開關120電性連接至該輔助電壓線圈302及該第一電晶體開關118；該第一電阻122電性連接至該輔助電壓線圈302、該第一電晶體開關118及該第二電晶體開關120；該第二電阻124電性連接至該第一電晶體開關118、該第二電晶體開關120及該第一電阻122。The time delay unit 104 is electrically connected to the voltage adjustment unit 102; the voltage clamping unit 106 is electrically connected to the voltage adjustment unit 102 and the time delay unit 104; the auxiliary voltage discharge switch unit 108 is electrically connected to the voltage adjustment The unit 102, the time delay unit 104, the voltage clamping unit 106, and one of the power supply 30 auxiliary voltage coils 302; the isolation notification unit 110 is electrically connected to the auxiliary voltage coil 302, the auxiliary voltage discharge switch unit 108, and An electronic device 40; the auxiliary voltage discharge resistor 112 is electrically connected to the isolation notification unit 110 and the auxiliary voltage discharge switch unit 108; the pull-up resistor 126 is electrically connected to the isolation notification unit 110, the power supply 30, and The first voltage dividing resistor 114 is electrically connected to the time delay unit 104, the voltage clamping unit 106 and the auxiliary voltage discharging switch unit 108; the second voltage dividing resistor 116 is electrically connected to the time delay The unit 104, the voltage clamping unit 106, the auxiliary voltage discharge switch unit 108 and the first voltage dividing resistor 114; the first transistor switch 118 Connected to the voltage adjustment unit 102, the time delay unit 104, the voltage clamping unit 106 and the auxiliary voltage coil 302; the second transistor switch 120 is electrically connected to the auxiliary voltage coil 302 and the first transistor switch The first resistor 122 is electrically connected to the auxiliary voltage coil 302, the first transistor switch 118 and the second transistor switch 120; the second resistor 124 is electrically connected to the first transistor switch 118, The second transistor switch 120 and the first resistor 122.
在一輸入電壓202（例如為一交流電壓）斷電之前：Before an input voltage 202 (for example, an AC voltage) is powered off:
該電壓調整單元102用於接收該輸入電壓202；該第一分壓電阻114及該第二分壓電阻116對該輸入電壓202進行分壓，以在該第一分壓電阻114及該第二分壓電阻116之間的連接點得到一第一分壓208；該第一分壓電阻114及該第二分壓電阻116傳送該第一分壓208至該時間延遲單元104及該電壓箝制單元106；該時間延遲單元104儲存該第一分壓208以得到一直流電壓204；即，該時間延遲單元104利用來自該輸入電壓202之該第一分壓208產生該直流電壓204。The voltage adjusting unit 102 is configured to receive the input voltage 202; the first voltage dividing resistor 114 and the second voltage dividing resistor 116 divide the input voltage 202 to be in the first voltage dividing resistor 114 and the second A first voltage divider 208 is obtained at a connection point between the voltage dividing resistors 116; the first voltage dividing resistor 114 and the second voltage dividing resistor 116 transmit the first voltage dividing unit 208 to the time delay unit 104 and the voltage clamping unit The time delay unit 104 stores the first divided voltage 208 to obtain the DC voltage 204; that is, the time delay unit 104 generates the DC voltage 204 by using the first divided voltage 208 from the input voltage 202.
該時間延遲單元104及該電壓箝制單元106對該第一分壓208進行濾波穩壓以得到一穩壓電壓210；該時間延遲單元104及該電壓箝制單元106傳送該穩壓電壓210至該輔助電壓放電開關單元108之該第一電晶體開關118；當該輔助電壓放電開關單元108之該第一電晶體開關118接收到該穩壓電壓210且通過該第一電阻122接收來自該輔助電壓線圈302之電壓時，該第一電晶體開關118導通接地，使得該第二電晶體開關120不導通，使得該輔助電壓線圈302不傳送一工作電壓206至該隔離通知單元110；即，該輔助電壓放電開關單元108不導通，使得該輔助電壓線圈302不傳送該工作電壓206至該隔離通知單元110。The time delay unit 104 and the voltage clamping unit 106 filter and regulate the first divided voltage 208 to obtain a regulated voltage 210. The time delay unit 104 and the voltage clamping unit 106 transmit the regulated voltage 210 to the auxiliary The first transistor switch 118 of the voltage discharge switch unit 108; when the first transistor switch 118 of the auxiliary voltage discharge switch unit 108 receives the regulated voltage 210 and receives the auxiliary voltage coil through the first resistor 122 When the voltage is 302, the first transistor switch 118 is grounded, so that the second transistor switch 120 is not turned on, so that the auxiliary voltage coil 302 does not transmit an operating voltage 206 to the isolation notification unit 110; that is, the auxiliary voltage The discharge switch unit 108 is non-conducting such that the auxiliary voltage coil 302 does not transmit the operating voltage 206 to the isolation notification unit 110.
如果該輔助電壓線圈302不傳送該工作電壓206至該隔離通知單元110，該隔離通知單元110之一訊號傳送端128即不導通，使得該隔離通知單元110之一訊號接收端130不接地；如果該隔離通知單元110之該訊號接收端130不接地，該電子設備40之一訊號輸入端402可透過該上拉電阻126接收從該電源供應器30輸出至該電子設備40之一輸出電壓212；藉此，該電子設備40得知該輸入電壓202沒有斷電。If the auxiliary voltage coil 302 does not transmit the operating voltage 206 to the isolation notification unit 110, one of the signal transmission terminals 128 of the isolation notification unit 110 is not turned on, so that one of the signal receiving ends 130 of the isolation notification unit 110 is not grounded; The signal receiving end 130 of the isolation notification unit 110 is not grounded, and a signal input terminal 402 of the electronic device 40 can receive an output voltage 212 output from the power supply 30 to the electronic device 40 through the pull-up resistor 126; Thereby, the electronic device 40 knows that the input voltage 202 is not powered off.
在該輸入電壓202斷電之後：After the input voltage 202 is powered down:
該穩壓電壓210無法再被得到；儲存於該時間延遲單元104內的該直流電壓204經由該電壓調整單元102之該第二分壓電阻116進行放電並驅動該第一電晶體開關118（此時，該輔助電壓線圈302仍有剩餘電力可供電予該第一電晶體開關118）；當該直流電壓204下降至一預設電壓時，該第一電晶體開關118不導通，使得該第二電晶體開關120導通（此時，該輔助電壓線圈302仍有剩餘電力可供電予該第二電晶體開關120），使得該輔助電壓線圈302傳送該工作電壓206至該隔離通知單元110；即，該輔助電壓放電開關單元108導通，使得該輔助電壓線圈302傳送該工作電壓206至該隔離通知單元110。當該輔助電壓放電開關單元108之該第二電晶體開關120導通時，該輔助電壓線圈302通過該隔離通知單元110對該輔助電壓放電電阻112進行放電。The regulated voltage 210 can no longer be obtained; the DC voltage 204 stored in the time delay unit 104 is discharged through the second voltage dividing resistor 116 of the voltage adjusting unit 102 and drives the first transistor switch 118 (this The auxiliary voltage coil 302 still has remaining power to supply power to the first transistor switch 118); when the DC voltage 204 drops to a predetermined voltage, the first transistor switch 118 is not turned on, so that the second The transistor switch 120 is turned on (at this time, the auxiliary voltage coil 302 still has remaining power to supply power to the second transistor switch 120), so that the auxiliary voltage coil 302 transmits the operating voltage 206 to the isolation notification unit 110; The auxiliary voltage discharge switch unit 108 is turned on such that the auxiliary voltage coil 302 transmits the operating voltage 206 to the isolation notification unit 110. When the second transistor switch 120 of the auxiliary voltage discharge switch unit 108 is turned on, the auxiliary voltage coil 302 discharges the auxiliary voltage discharge resistor 112 through the isolation notification unit 110.
在該隔離通知單元110之該訊號傳送端128接收到該工作電壓206之後，該隔離通知單元110之該訊號傳送端128被導通以導通該隔離通知單元110之該訊號接收端130接地；如果該隔離通知單元110之該訊號接收端130接地，該電子設備40之該訊號輸入端402即接地，使得該電子設備40得知該輸入電壓202斷電。藉此，該電子設備40可將資料備份儲存並做好關機準備。After the signal transmitting terminal 128 of the quarantine notification unit 110 receives the working voltage 206, the signal transmitting end 128 of the quarantine notification unit 110 is turned on to turn on the signal receiving end 130 of the quarantine notification unit 110; if The signal receiving end 130 of the isolation notification unit 110 is grounded, and the signal input terminal 402 of the electronic device 40 is grounded, so that the electronic device 40 knows that the input voltage 202 is powered off. Thereby, the electronic device 40 can store the data backup and prepare for shutdown.
請參考圖2，其係為本發明之電壓與訊號波形圖。在圖2當中，由上而下第一條曲線代表該輸入電壓202；由上而下第二條曲線代表該電子設備40之該訊號輸入端402所接收到的訊號；由上而下第三條曲線代表從該電源供應器30輸出至該電子設備40之該輸出電壓212。Please refer to FIG. 2, which is a voltage and signal waveform diagram of the present invention. In FIG. 2, the first curve from top to bottom represents the input voltage 202; the second curve from top to bottom represents the signal received by the signal input terminal 402 of the electronic device 40; The bar represents the output voltage 212 that is output from the power supply 30 to the electronic device 40.
在一時間點t1，該輸入電壓202斷電。在該時間點t1至一時間點t2之間，係為一通知斷電延遲時間。在該時間點t2，該電子設備40被通知該輸入電壓202斷電。在該時間點t2至一時間點t3之間，該電子設備40可將資料備份儲存並做好關機準備。在該時間點t1至該時間點t3之間，係稱為該電源供應器30之一保持時間（hold-up time）。因此，在該輸入電壓202斷電之後以及在該保持時間結束之前，扣除掉該通知斷電延遲時間，該電子設備40可將資料備份儲存並做好關機準備。At a time point t1, the input voltage 202 is powered down. Between the time point t1 and the time point t2, it is a notification power-off delay time. At this time point t2, the electronic device 40 is notified that the input voltage 202 is powered off. Between the time point t2 and the time point t3, the electronic device 40 can store the data backup and prepare for shutdown. Between the time point t1 and the time point t3, it is referred to as a hold-up time of the power supply 30. Therefore, after the input voltage 202 is powered off and before the end of the hold time, the notification power-off delay time is deducted, and the electronic device 40 can store the data backup and prepare for shutdown.
請參考圖3，其係為本發明之具有輸入電壓斷電偵測裝置之電源供應器。一具有輸入電壓斷電偵測裝置之電源供應器50包含一輸入電壓斷電偵測裝置10、一輔助電壓線圈302、一主轉換器304、一脈波寬度調變控制器306、一初級側濾波電容308、一橋式整流器310、一輸出端整流濾波器312、一回授電路314及一電磁干擾濾波器316。Please refer to FIG. 3, which is a power supply device with an input voltage power-off detecting device of the present invention. A power supply 50 having an input voltage power-off detecting device includes an input voltage power-off detecting device 10, an auxiliary voltage coil 302, a main converter 304, a pulse width modulation controller 306, and a primary side. The filter capacitor 308, a bridge rectifier 310, an output rectifier filter 312, a feedback circuit 314, and an electromagnetic interference filter 316.
該輔助電壓線圈302電性連接至該輸入電壓斷電偵測裝置10；該主轉換器304電性連接至該輔助電壓線圈302；該脈波寬度調變控制器306電性連接至該輔助電壓線圈302及該主轉換器304；該初級側濾波電容308電性連接至該主轉換器304；該橋式整流器310電性連接至該初級側濾波電容308、該脈波寬度調變控制器306及該輔助電壓線圈302；該輸出端整流濾波器312電性連接至該主轉換器304及一電子設備40；該回授電路314電性連接至該輸出端整流濾波器312、該電子設備40及該脈波寬度調變控制器306；該電磁干擾濾波器316電性連接至該輸入電壓斷電偵測裝置10、該橋式整流器310、該脈波寬度調變控制器306及該輔助電壓線圈302。該輸入電壓斷電偵測裝置10所包含之元件敘述與圖1相似者，為簡潔因素，於此不再贅述。The auxiliary voltage coil 302 is electrically connected to the input voltage power-off detecting device 10; the main converter 304 is electrically connected to the auxiliary voltage coil 302; the pulse width modulation controller 306 is electrically connected to the auxiliary voltage a coil 302 and the main converter 304; the primary side filter capacitor 308 is electrically connected to the main converter 304; the bridge rectifier 310 is electrically connected to the primary side filter capacitor 308, and the pulse width modulation controller 306 The auxiliary voltage coil 302 is electrically connected to the main converter 304 and an electronic device 40. The feedback circuit 314 is electrically connected to the output rectifying filter 312 and the electronic device 40. And the pulse width modulation controller 306; the electromagnetic interference filter 316 is electrically connected to the input voltage power failure detecting device 10, the bridge rectifier 310, the pulse width modulation controller 306, and the auxiliary voltage Coil 302. The components included in the input voltage power-off detecting device 10 are similar to those in FIG. 1 and are for brevity and will not be described again.
本發明之功效在於提供一種具有低功率損耗之輸入電壓斷電偵測裝置。當電源供應器偵測到輸出電壓或電流異常並觸發保護後，使用者將市電斷電，輔助電源關機放電電路可將供電給初級側脈波寬度調變控制器的輔助電源電壓迅速放電至脈波寬度調變控制器的鎖死重置電壓準位（latch-reset threshold voltage），使用者不需等待時間，斷電後可立即重新送電。由於輔助電源關機放電電路中偵測市電電壓的分壓電阻阻抗很高，故本發明具有極低的功率損耗，且由於傳遞訊號的光耦合器乃由輔助電源於放電時所驅動，故傳遞市電斷電訊號的功能並不會增加輸入功率的損耗。本發明達成了同時結合輔助電源關機放電與市電斷電偵測之功能並具有極低之功率損耗。The effect of the present invention is to provide an input voltage power-off detecting device with low power loss. When the power supply detects that the output voltage or current is abnormal and triggers protection, the user powers off the mains, and the auxiliary power shutdown circuit can quickly discharge the auxiliary power supply voltage to the primary side pulse width modulation controller to the pulse. The latch-reset threshold voltage of the wave width modulation controller does not require waiting time, and can be re-powered immediately after the power is turned off. Since the voltage divider resistance of the mains power supply shutdown circuit is high, the present invention has extremely low power loss, and since the optical coupler that transmits the signal is driven by the auxiliary power source during discharge, the utility power is transmitted. The function of the power-off signal does not increase the loss of input power. The invention achieves the function of simultaneously combining the auxiliary power supply shutdown discharge and the mains power failure detection and has extremely low power loss.
綜上所述，當知本發明已具有產業利用性、新穎性與進步性，又本發明之構造亦未曾見於同類產品及公開使用，完全符合發明專利申請要件，爰依專利法提出申請。In summary, it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and public use, and fully complies with the requirements of the invention patent application, and is filed according to the patent law.
10‧‧‧輸入電壓斷電偵測裝置10‧‧‧Input voltage power-off detection device
30‧‧‧電源供應器30‧‧‧Power supply
40‧‧‧電子設備40‧‧‧Electronic equipment
50‧‧‧具有輸入電壓斷電偵測裝置之電源供應器50‧‧‧Power supply with input voltage disconnection detection device
102‧‧‧電壓調整單元102‧‧‧Voltage adjustment unit
104‧‧‧時間延遲單元104‧‧‧Time delay unit
106‧‧‧電壓箝制單元106‧‧‧Voltage clamping unit
108‧‧‧輔助電壓放電開關單元108‧‧‧Auxiliary voltage discharge switch unit
110‧‧‧隔離通知單元110‧‧‧Isolation notification unit
112‧‧‧輔助電壓放電電阻112‧‧‧Auxiliary voltage discharge resistor
114‧‧‧第一分壓電阻114‧‧‧First voltage divider resistor
116‧‧‧第二分壓電阻116‧‧‧Second voltage divider resistor
118‧‧‧第一電晶體開關118‧‧‧First transistor switch
120‧‧‧第二電晶體開關120‧‧‧Second transistor switch
122‧‧‧第一電阻122‧‧‧First resistance
124‧‧‧第二電阻124‧‧‧second resistance
126‧‧‧上拉電阻126‧‧‧ Pull-up resistor
128‧‧‧訊號傳送端128‧‧‧Signal transmitter
130‧‧‧訊號接收端130‧‧‧Signal Receiver
202‧‧‧輸入電壓202‧‧‧Input voltage
204‧‧‧直流電壓204‧‧‧DC voltage
206‧‧‧工作電壓206‧‧‧Working voltage
208‧‧‧第一分壓208‧‧‧First partial pressure
210‧‧‧穩壓電壓210‧‧‧Variable voltage
212‧‧‧輸出電壓212‧‧‧Output voltage
302‧‧‧輔助電壓線圈302‧‧‧Auxiliary voltage coil
304‧‧‧主轉換器304‧‧‧Main Converter
306‧‧‧脈波寬度調變控制器306‧‧‧ Pulse width modulation controller
308‧‧‧初級側濾波電容308‧‧‧Primary side filter capacitor
310‧‧‧橋式整流器310‧‧‧Bridge rectifier
312‧‧‧輸出端整流濾波器312‧‧‧ Output Rectifier Filter
314‧‧‧回授電路314‧‧‧Return circuit
316‧‧‧電磁干擾濾波器316‧‧‧electromagnetic interference filter
402‧‧‧訊號輸入端402‧‧‧Signal input
t1‧‧‧時間點T1‧‧‧ time
t2‧‧‧時間點T2‧‧‧ time
t3‧‧‧時間點T3‧‧‧ time point
圖1為本發明之輸入電壓斷電偵測裝置方塊圖。1 is a block diagram of an input voltage power-off detecting device of the present invention.
圖2為本發明之電壓與訊號波形圖。2 is a waveform diagram of voltage and signal of the present invention.
圖3為本發明之具有輸入電壓斷電偵測裝置之電源供應器。3 is a power supply of the present invention having an input voltage power-off detecting device.
10‧‧‧輸入電壓斷電偵測裝置 10‧‧‧Input voltage power-off detection device
30‧‧‧電源供應器 30‧‧‧Power supply
40‧‧‧電子設備 40‧‧‧Electronic equipment
102‧‧‧電壓調整單元 102‧‧‧Voltage adjustment unit
104‧‧‧時間延遲單元 104‧‧‧Time delay unit
106‧‧‧電壓箝制單元 106‧‧‧Voltage clamping unit
108‧‧‧輔助電壓放電開關單元 108‧‧‧Auxiliary voltage discharge switch unit
110‧‧‧隔離通知單元 110‧‧‧Isolation notification unit
112‧‧‧輔助電壓放電電阻 112‧‧‧Auxiliary voltage discharge resistor
114‧‧‧第一分壓電阻 114‧‧‧First voltage divider resistor
116‧‧‧第二分壓電阻 116‧‧‧Second voltage divider resistor
118‧‧‧第一電晶體開關 118‧‧‧First transistor switch
120‧‧‧第二電晶體開關 120‧‧‧Second transistor switch
122‧‧‧第一電阻 122‧‧‧First resistance
124‧‧‧第二電阻 124‧‧‧second resistance
126‧‧‧上拉電阻 126‧‧‧ Pull-up resistor
128‧‧‧訊號傳送端 128‧‧‧Signal transmitter
130‧‧‧訊號接收端 130‧‧‧Signal Receiver
202‧‧‧輸入電壓 202‧‧‧Input voltage
204‧‧‧直流電壓 204‧‧‧DC voltage
206‧‧‧工作電壓 206‧‧‧Working voltage
208‧‧‧第一分壓 208‧‧‧First partial pressure
210‧‧‧穩壓電壓 210‧‧‧Variable voltage
212‧‧‧輸出電壓 212‧‧‧Output voltage
302‧‧‧輔助電壓線圈 302‧‧‧Auxiliary voltage coil
402‧‧‧訊號輸入端 402‧‧‧Signal input
Claims (8)
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| TW105112160A TWI574494B (en) | 2016-04-19 | 2016-04-19 | Input-voltage-off detection apparatus and power supply with input-voltage-off detection apparatus |
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| TW105112160A TWI574494B (en) | 2016-04-19 | 2016-04-19 | Input-voltage-off detection apparatus and power supply with input-voltage-off detection apparatus |
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| TW201810892A TW201810892A (en) | 2018-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI632378B (en) * | 2017-09-07 | 2018-08-11 | 新唐科技股份有限公司 | Low-power voltage detection circuit |
| US11835592B2 (en) | 2021-09-23 | 2023-12-05 | Infsitronix Technology Corporation | Method and circuit for monitoring voltage of power supply |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW393825B (en) * | 1997-04-03 | 2000-06-11 | Ind Tech Res Inst | A method and apparatus for generating a disconnection signal of an AC power supply |
| CN204190611U (en) * | 2014-09-05 | 2015-03-04 | 芯砺微(上海)电子科技有限公司 | A kind of energy-storage travelling wave tube power-off automatic discharge circuit |
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2016
- 2016-04-19 TW TW105112160A patent/TWI574494B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW393825B (en) * | 1997-04-03 | 2000-06-11 | Ind Tech Res Inst | A method and apparatus for generating a disconnection signal of an AC power supply |
| CN204190611U (en) * | 2014-09-05 | 2015-03-04 | 芯砺微(上海)电子科技有限公司 | A kind of energy-storage travelling wave tube power-off automatic discharge circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI632378B (en) * | 2017-09-07 | 2018-08-11 | 新唐科技股份有限公司 | Low-power voltage detection circuit |
| US11835592B2 (en) | 2021-09-23 | 2023-12-05 | Infsitronix Technology Corporation | Method and circuit for monitoring voltage of power supply |
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| TW201810892A (en) | 2018-03-16 |
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