TWI383557B - Power apparatus - Google Patents

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TWI383557B
TWI383557B TW97113355A TW97113355A TWI383557B TW I383557 B TWI383557 B TW I383557B TW 97113355 A TW97113355 A TW 97113355A TW 97113355 A TW97113355 A TW 97113355A TW I383557 B TWI383557 B TW I383557B
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voltage
power supply
module
output
supply device
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TW97113355A
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Chinese (zh)
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TW200943662A (en
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Lung Dai
Yong-Song Shi
Qiao-Lin Deng
Yong Xiong
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Hon Hai Prec Ind Co Ltd
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Description

電源裝置 Power supply unit

本發明涉及電子設備，尤其涉及一種具有過壓保護功能的電源裝置。 The present invention relates to an electronic device, and more particularly to a power supply device having an overvoltage protection function.

隨著科學技術的進步，家用電器以及各種用電設備日益與我們的生活緊密地聯繫在一起。像電視機、電腦、家庭影院等各種用電設備的普及，極大地豐富了我們的生活，同時也給我們的生活帶來了極大的便利。 With the advancement of science and technology, household appliances and various electrical equipment are increasingly closely linked to our lives. The popularity of various types of electrical equipment, such as televisions, computers, home theaters, has greatly enriched our lives and brought great convenience to our lives.

家用電器一般工作在一定的電壓範圍內，然而，日常生活中，家用電器所在的線路經常會因為雷擊或其他原因引起電壓的突然升高，進而使家用電器被燒壞，嚴重地可能使用戶受到傷害。 Household appliances generally work within a certain voltage range. However, in daily life, the line where the household appliances are located often causes a sudden rise in voltage due to lightning strikes or other reasons, which in turn causes the household appliances to be burned out, which may seriously expose the user. hurt.

有鑒於此，有必要提供一種具有過壓保護功能的電源裝置。 In view of this, it is necessary to provide a power supply device having an overvoltage protection function.

一種電源裝置，其包括輸入介面和輸出介面，輸入介面用於接收外部電源電壓，輸出介面用於將外部電源電壓輸出至用電設備，電源裝置還包括檢測模組、報警模組以及開關模組，檢測模組用於比較判斷該外部電源電壓是否過高，若該外部電源電壓過高，則檢測模組輸出斷開訊號，反之則輸出導通訊號，開關模組用於回應該導通訊號將該外部電源電壓藉由輸出介面輸出，報警模組回應該斷開訊號進行報警，開關模組回應該斷開訊號停止將該外部電源電壓藉由輸出介面輸出。 A power supply device includes an input interface for receiving an external power supply voltage, an output interface for outputting an external power supply voltage to the powered device, and a power supply device including a detection module, an alarm module, and a switch module The detecting module is used for comparing and judging whether the external power supply voltage is too high. If the external power supply voltage is too high, the detecting module outputs a disconnection signal, and if not, the output communication number is output, and the switch module is used to return the communication number. The external power supply voltage is output through the output interface, and the alarm module should be disconnected from the signal for alarm. The switch module should be disconnected from the signal to stop the external power supply voltage from being output through the output interface.

上述電源裝置連接於外部電源與用電設備之間，用於判斷用電設備所使用的外部電源是否超出其工作電壓，以及在外部電源電壓過高時，進行報警，並不將外部電源輸出至用電設備，以保護用電設備。 The power supply device is connected between the external power source and the power device, and is used to determine whether the external power source used by the power device exceeds the operating voltage thereof, and when the external power source voltage is too high, an alarm is issued, and the external power source is not output to Use electrical equipment to protect electrical equipment.

如圖1所示，其為一較佳實施方式的電源裝置100的功能模組圖。電源裝置100用於連接外部電源和用電設備。電源裝置100包括輸入介面101、取樣模組103、整流模組105、檢測模組107、報警模組109、開關模組111以及輸出介面113。 As shown in FIG. 1, it is a functional block diagram of a power supply device 100 of a preferred embodiment. The power supply device 100 is used to connect an external power source and a powered device. The power supply device 100 includes an input interface 101, a sampling module 103, a rectifier module 105, a detection module 107, an alarm module 109, a switch module 111, and an output interface 113.

輸入介面101用於接收外部電壓。 The input interface 101 is for receiving an external voltage.

取樣模組103用於對輸入介面101接收的外部電壓進行取樣，得到取樣電壓，並將取樣電壓輸出至整流模組105。電源裝置100藉由輸入介面101接收的外部電壓為市電電壓，而電源裝置100的工作電壓不需要與市電電壓一樣高，因此外部電壓需要經取樣模組103進行分壓取樣。如電源裝置100藉由輸入介面101接收220伏的市電交流電壓，經過取樣模組103取樣後，再經整流模組105整流輸出的直流電壓為20伏；若不經過取樣模組103取樣，則經過整流模組105整流輸出的直流電壓為140伏，使電源裝置100的功率增大，耗能增加。 The sampling module 103 is configured to sample the external voltage received by the input interface 101 to obtain a sampling voltage, and output the sampling voltage to the rectifying module 105. The external voltage received by the power supply device 100 through the input interface 101 is the mains voltage, and the operating voltage of the power supply device 100 does not need to be as high as the mains voltage. Therefore, the external voltage needs to be divided and sampled by the sampling module 103. For example, the power supply device 100 receives the 220 volt commercial AC voltage through the input interface 101, and after sampling by the sampling module 103, the DC voltage output by the rectifying module 105 is 20 volts; if not sampling by the sampling module 103, The DC voltage rectified and outputted by the rectifying module 105 is 140 volts, so that the power of the power supply device 100 is increased, and the energy consumption is increased.

整流模組105用於對上述取樣電壓進行整流，並輸出直流電壓。 The rectifier module 105 is configured to rectify the sampling voltage and output a DC voltage.

檢測模組107用於檢測整流模組105輸出的直流電壓是否 過高，以確定外部電壓是否高於用電設備的工作電壓，並在所述直流電壓過高時輸出斷開訊號，以及在所述直流電壓正常時輸出導通訊號。 The detecting module 107 is configured to detect whether the DC voltage output by the rectifying module 105 is Too high to determine whether the external voltage is higher than the operating voltage of the powered device, and output a disconnection signal when the DC voltage is too high, and output a pilot number when the DC voltage is normal.

報警模組109用於回應檢測模組107輸出的斷開訊號進行報警。 The alarm module 109 is configured to respond to the disconnection signal output by the detection module 107 for alarm.

開關模組111用於接收所述外部電壓，並回應所述導通訊號將外部電壓從輸出介面1153輸出，或回應所述斷開訊號停止將外部電壓輸出。 The switch module 111 is configured to receive the external voltage, and output an external voltage from the output interface 1153 in response to the communication signal, or stop outputting an external voltage in response to the disconnection signal.

如圖2所示，其為圖1所示的電源裝置100的電路圖。 As shown in FIG. 2, it is a circuit diagram of the power supply device 100 shown in FIG. 1.

輸入介面101為插頭J1，插頭J1用於與外部交流電源相連，用於接收外部電壓。插頭J1包括第一輸出端101a和第二輸出端101b。 The input interface 101 is a plug J1 for connecting to an external AC power source for receiving an external voltage. The plug J1 includes a first output terminal 101a and a second output terminal 101b.

輸出介面115為插座J2，插座J2用於與用電設備相連。插座J2包括第一電源輸入端113a和第二電源輸入端113b。 The output interface 115 is a socket J2 for connecting to a powered device. The socket J2 includes a first power input terminal 113a and a second power input terminal 113b.

取樣模組103包括電阻R1和R2、電容C1以及穩壓二極體D4和D5。其中，電阻R1和R2相互串聯，穩壓二極體D4和D5的負極相連，穩壓二極體D4的正極與電阻R2的另一端相連，穩壓二極體D5的正極與插頭J1的第二輸出端101b相連，電阻R1的另一端與插頭J1的第一輸出端101a相連。電容C1與電阻R1並聯。 The sampling module 103 includes resistors R1 and R2, a capacitor C1, and voltage stabilizing diodes D4 and D5. Wherein, the resistors R1 and R2 are connected in series, the negative poles of the voltage regulator diodes D4 and D5 are connected, the anode of the voltage regulator diode D4 is connected to the other end of the resistor R2, and the anode of the voltage regulator diode D5 is connected to the plug J1. The two output terminals 101b are connected, and the other end of the resistor R1 is connected to the first output terminal 101a of the plug J1. Capacitor C1 is connected in parallel with resistor R1.

整流模組105包括電容C2以及整流橋D3。整流橋D3包括第一埠201、第二埠203、第三埠205以及第四埠207，其中第一埠201與電阻R1和R2的公共端電性相連，第三埠 205與插頭J1的第二輸出端101b電性相連，電容C2並聯於第二埠203與第四埠207之間。 The rectifier module 105 includes a capacitor C2 and a rectifier bridge D3. The rectifier bridge D3 includes a first port 201, a second port 203, a third port 205, and a fourth port 207, wherein the first port 201 is electrically connected to the common ends of the resistors R1 and R2, and the third port 205 is electrically connected to the second output end 101b of the plug J1, and the capacitor C2 is connected in parallel between the second turn 203 and the fourth turn 207.

檢測模組107包括電阻R3、R4、R5和穩壓二極體D1，以及比較器U1A。其中，電阻R3和R4依次連接於第二埠203和第四埠207之間，電阻R5的一端與穩壓二極體D1的正極相連，其另一端與第四埠207電性相連，穩壓二極體D1的負極與第二埠203電性相連。比較器U1A的同相輸入端電性連接於電阻R5和穩壓二極體D1的公共端，其反相輸入端電性連接於電阻R3和R4的公共端。 The detection module 107 includes resistors R3, R4, R5 and a voltage stabilizing diode D1, and a comparator U1A. The resistors R3 and R4 are sequentially connected between the second 埠 203 and the fourth 埠 207. One end of the resistor R5 is connected to the anode of the Zener diode D1, and the other end of the resistor is electrically connected to the fourth 埠 207. The cathode of the diode D1 is electrically connected to the second crucible 203. The non-inverting input terminal of the comparator U1A is electrically connected to the common terminal of the resistor R5 and the voltage stabilizing diode D1, and the inverting input terminal thereof is electrically connected to the common terminal of the resistors R3 and R4.

報警模組109包括電阻R6和發光二極體D2。電阻R6的一端電性連接至第四埠207，另一端與發光二極體D2的負極電性相連，發光二極體D2的正極與比較器U1A的輸出端相連。 The alarm module 109 includes a resistor R6 and a light emitting diode D2. One end of the resistor R6 is electrically connected to the fourth turn 207, and the other end is electrically connected to the negative electrode of the LED D2. The positive terminal of the LED D2 is connected to the output end of the comparator U1A.

開關模組111包括電阻R7、R8、三極體Q1以及繼電器300。三極體Q1的基極藉由電阻R8連接於比較器U1A的輸出端。三極體Q1的集電極藉由電阻R7連接於第四埠207，發射級電性連接至第二埠203。繼電器300為固態繼電器，其包括第一控制輸入端301、第二控制輸入端303、電源輸入端305以及電源輸出端307。第一控制輸入端301電性連接至第四埠207，第二控制輸入端303電性連接至三極體Q1的集電極，電源輸入端305連接至插頭J1的第一輸出端101a，電源輸出端307電性連接至插座J2的第一電源輸入端115a。其中插座J2的第二電源輸入端115b電性連接至插頭J1的第二輸出端101b。當有電流從第一控制輸入端301流向第二控制輸入端303時，繼電器300將電源 輸入端305與電源輸出端307連通。 The switch module 111 includes resistors R7, R8, a triode Q1, and a relay 300. The base of the transistor Q1 is connected to the output of the comparator U1A via a resistor R8. The collector of the transistor Q1 is connected to the fourth port 207 via a resistor R7, and the emitter stage is electrically connected to the second port 203. Relay 300 is a solid state relay that includes a first control input 301, a second control input 303, a power input 305, and a power output 307. The first control input terminal 301 is electrically connected to the fourth port 207, the second control input terminal 303 is electrically connected to the collector of the transistor Q1, and the power input terminal 305 is connected to the first output terminal 101a of the plug J1, and the power output is The terminal 307 is electrically connected to the first power input terminal 115a of the socket J2. The second power input end 115b of the socket J2 is electrically connected to the second output end 101b of the plug J1. When there is a current flowing from the first control input 301 to the second control input 303, the relay 300 will supply power Input 305 is in communication with power output 307.

電源裝置100藉由插頭J1接收的外部電源，經取樣模組103的電阻R1進行限流後，電阻R2與穩壓二極體D4和D5進行分壓，電容C1與穩壓二極體D4和D5共同用於去除外部電壓中的高頻雜波。經過取樣模組103輸出的取樣電壓為加於電阻R2和穩壓二極體D4和D5兩端的電壓。所述取樣電壓經過整流模組105的整流橋進行整流後，再藉由電容C2進行濾波，得到整流後的直流電壓。 The power supply device 100 is limited by the external power supply received by the plug J1, and is limited by the resistor R1 of the sampling module 103. The resistor R2 is divided with the voltage regulator diodes D4 and D5, and the capacitor C1 and the voltage regulator diode D4 are D5 is used together to remove high frequency clutter in the external voltage. The sampling voltage outputted by the sampling module 103 is a voltage applied across the resistor R2 and the voltage stabilizing diodes D4 and D5. The sampling voltage is rectified by a rectifier bridge of the rectifying module 105, and then filtered by a capacitor C2 to obtain a rectified DC voltage.

電阻R3和R4對整流模組103輸出的直流電壓進行分壓，以給比較器U1A提供待比較電壓。相互串聯的電阻R5和穩壓二極體D1用於給比較器U1A提供基準電壓。若所述直流電壓處於正常的電壓範圍內，則基準電壓與所述直流電壓相同，而待比較電壓是經過電阻R3和R4分壓後的電壓，進而待比較電壓低於基準電壓，比較器U1A的同相輸入端的電壓高於反相輸入端，其輸出端輸出高電平的導通訊號。電阻R6和發光二極體D2所在的支路不導通，發光二極體D2不發光，表明此時藉由插頭J1輸入的外部電壓處於正常電壓範圍內。所述高電平的開關訊號藉由電阻R8使三極體Q1導通，其中R8用於限制藉由三極體Q1的電流。三極體Q1導通，使繼電器300的第一控制輸入端301和第二控制輸入端303之間導通，進而控制電源輸出端307將電源輸入端305接收的外部電壓輸出。 Resistors R3 and R4 divide the DC voltage output from rectifier module 103 to provide comparator U1A with the voltage to be compared. A resistor R5 and a voltage stabilizing diode D1 connected in series are used to supply a reference voltage to the comparator U1A. If the DC voltage is within a normal voltage range, the reference voltage is the same as the DC voltage, and the voltage to be compared is a voltage divided by the resistors R3 and R4, and the voltage to be compared is lower than the reference voltage, the comparator U1A The voltage at the non-inverting input is higher than the inverting input, and the output of the non-inverting input is high. The branch where the resistor R6 and the light-emitting diode D2 are located is not turned on, and the light-emitting diode D2 does not emit light, indicating that the external voltage input through the plug J1 is within the normal voltage range. The high level switching signal turns on the transistor Q1 through a resistor R8, wherein R8 is used to limit the current through the transistor Q1. The triode Q1 is turned on to turn on between the first control input terminal 301 and the second control input terminal 303 of the relay 300, thereby controlling the power output terminal 307 to output the external voltage received by the power input terminal 305.

若經所述直流電壓高於正常的電壓範圍，穩壓二極體D1被反向擊穿，比較器U1A同相輸入端接收的基準電壓為穩壓二極體D1的反向擊穿電壓，而其反相輸入端接收的待 比較電壓隨著所述直流電壓升高而升高，使比較器U1A的反相輸入端電壓高於同相輸入端，比較器U1A藉由其輸出端輸出低電平的斷開訊號。由電阻R6和發光二極體D2所在的支路導通，發光二極體D2發光，產生報警訊號。而此時三極體Q1截止，繼電器300的第一控制輸入端301和第二控制輸入端303不導通，進而不能控制電源輸出端307將電源輸入端305接收的外部電壓輸出至用電設備，進而保護用電設備不被過高的電壓燒壞。 If the DC voltage is higher than the normal voltage range, the Zener diode D1 is reversely broken, and the reference voltage received by the non-inverting input of the comparator U1A is the reverse breakdown voltage of the Zener diode D1, and Its inverting input receives The comparison voltage rises as the DC voltage rises, so that the voltage of the inverting input terminal of the comparator U1A is higher than the non-inverting input terminal, and the comparator U1A outputs a low-level disconnection signal through its output terminal. The branch of the resistor R6 and the LED diode D2 is turned on, and the LED diode 2 emits light to generate an alarm signal. At this time, the triode Q1 is turned off, the first control input terminal 301 and the second control input terminal 303 of the relay 300 are not turned on, and thus the power output terminal 307 cannot be controlled to output the external voltage received by the power input terminal 305 to the powered device. In turn, the consumer is protected from excessive voltage burnout.

上述電源裝置100連接於外部電源與用電設備之間，用於判斷用電設備所使用的外部電源是否超出家用電器的工作電壓範圍，以及在外部電源電壓過高時，進行報警，並不將外部電源輸出至用電設備，保護用電設備。電源裝置100不會因電壓過高而損壞，從而可以反復使用。 The power supply device 100 is connected between the external power source and the power device, and is used to determine whether the external power source used by the power device exceeds the operating voltage range of the home appliance, and when the external power source voltage is too high, the alarm is not performed. The external power supply is output to the powered device to protect the powered device. The power supply device 100 is not damaged by the excessive voltage, and can be used repeatedly.

100‧‧‧電源裝置 100‧‧‧Power supply unit

101‧‧‧輸入介面 101‧‧‧Input interface

101a‧‧‧第一輸出端 101a‧‧‧ first output

101b‧‧‧第二輸出端 101b‧‧‧second output

103‧‧‧取樣模組 103‧‧‧Sampling module

105‧‧‧整流模組 105‧‧‧Rectifier Module

107‧‧‧檢測模組 107‧‧‧Test module

109‧‧‧報警模組 109‧‧‧ alarm module

111‧‧‧開關模組 111‧‧‧Switch Module

113‧‧‧輸出介面 113‧‧‧Output interface

201‧‧‧第一埠 201‧‧‧ first

203‧‧‧第二埠 203‧‧‧Second

205‧‧‧第三埠 205‧‧‧third

207‧‧‧第四埠 207‧‧‧Fourth

300‧‧‧繼電器 300‧‧‧ Relay

301‧‧‧第一控制輸入端 301‧‧‧First control input

303‧‧‧第二控制輸入端 303‧‧‧second control input

305‧‧‧電源輸入端 305‧‧‧Power input

307‧‧‧電源輸出端 307‧‧‧Power output

圖1為一較佳實施方式的電源裝置的功能模組圖。 1 is a functional block diagram of a power supply device according to a preferred embodiment.

圖2為圖1所示的電源裝置的電路圖。 Fig. 2 is a circuit diagram of the power supply unit shown in Fig. 1.

100‧‧‧電源裝置 100‧‧‧Power supply unit

101‧‧‧輸入介面 101‧‧‧Input interface

103‧‧‧取樣模組 103‧‧‧Sampling module

105‧‧‧整流模組 105‧‧‧Rectifier Module

107‧‧‧檢測模組 107‧‧‧Test module

109‧‧‧報警模組 109‧‧‧ alarm module

111‧‧‧開關模組 111‧‧‧Switch Module

113‧‧‧輸出介面 113‧‧‧Output interface

Claims (10)

一種電源裝置，其包括輸入介面和輸出介面，輸入介面用於接收外部電源電壓，輸出介面用於將外部電源電壓輸出至用電設備，其改良在於：電源裝置還包括檢測模組、報警模組以及開關模組，檢測模組用於比較判斷該外部電源電壓是否過高，若該外部電源電壓過高，則檢測模組輸出斷開訊號，反之則輸出導通訊號，開關模組用於回應該導通訊號將該外部電源電壓藉由該輸出介面輸出，報警模組回應該斷開訊號進行報警，開關模組回應該斷開訊號停止將外部電源電壓藉由輸出介面輸出。 A power supply device includes an input interface for receiving an external power supply voltage, and an output interface for outputting an external power supply voltage to the powered device. The improvement is that the power supply device further includes a detection module and an alarm module. And a switch module, the detection module is configured to compare and determine whether the external power supply voltage is too high, if the external power supply voltage is too high, the detection module outputs a disconnection signal, and vice versa, the output communication number is output, and the switch module is used for responding The communication signal outputs the external power supply voltage through the output interface, and the alarm module should be disconnected from the signal for alarm. The switch module should be disconnected and the external power supply voltage is output through the output interface. 如申請專利範圍第1項所述之電源裝置，其中該電源裝置還包括取樣模組和整流模組，取樣模組用於對該外部電源電壓進行分壓，並輸出分壓後的取樣電壓至整流模組，整流模組用於對該取樣電壓進行整流，並輸出直流電壓至檢測模組，以供檢測模組判斷該外部電源電壓是否過高。 The power supply device of claim 1, wherein the power supply device further comprises a sampling module and a rectification module, wherein the sampling module is configured to divide the external power supply voltage, and output the divided sampling voltage to The rectifier module is configured to rectify the sampling voltage and output a DC voltage to the detection module, so that the detection module determines whether the external power supply voltage is too high. 如申請專利範圍第2項所述之電源裝置，其中該取樣模組包括依次連接的兩個電阻(R1、R2)和兩個穩壓二極體(D4、D5)，該兩個穩壓二極體(D4、D5)的負極相互連接，取樣模組將加於電阻(R2)以及穩壓二極體(D4、D5)上的電壓作為取樣電壓。 The power supply device of claim 2, wherein the sampling module comprises two resistors (R1, R2) and two voltage stabilizing diodes (D4, D5) connected in sequence, and the two voltage regulators The negative electrodes of the polar bodies (D4, D5) are connected to each other, and the sampling module applies a voltage applied to the resistor (R2) and the voltage stabilizing diodes (D4, D5) as a sampling voltage. 如申請專利範圍第3項所述之電源裝置，其中該取樣模組還包括與電阻(R1)並聯的電容(C1)，電容(C1)與穩壓二極體(D4、D5)共同用於除去該外部電源電壓中的雜波。 The power supply device of claim 3, wherein the sampling module further comprises a capacitor (C1) connected in parallel with the resistor (R1), and the capacitor (C1) is used together with the voltage stabilizing diode (D4, D5) The clutter in the external supply voltage is removed. 如申請專利範圍第2項所述之電源裝置，其中該整流模組 包括電容(C2)以及整流橋(D3)，整流橋(D3)包括第一埠、第二埠、第三埠以及第四埠，其中第一埠和第三埠與取樣模組電性相連，用於接收取樣模組輸出的取樣電壓，電容(C2)並聯於第二埠與第四埠之間，用於對整流橋(D3)整流後的電壓進行濾波得到直流電壓。 The power supply device of claim 2, wherein the rectifier module Including a capacitor (C2) and a rectifier bridge (D3), the rectifier bridge (D3) includes a first 埠, a second 埠, a third 埠, and a fourth 埠, wherein the first 埠 and the third 电 are electrically connected to the sampling module, The sampling voltage for receiving the output of the sampling module, the capacitor (C2) is connected in parallel between the second 埠 and the fourth ,, and is used for filtering the rectified voltage of the rectifier bridge (D3) to obtain a DC voltage. 如申請專利範圍第2項所述之電源裝置，其中該檢測模組包括兩個依次連接的兩電阻(R3、R4)，以及穩壓二極體(D1)和比較器(U1A)，電阻(R3、R4)依次連接後電性連接於整流模組，用於給比較器(U1A)提供用於比較的待比較電壓，穩壓二極體(D1)電性連接至整流模組，用於給比較器(U1A)提供基準電壓，比較器(U1A)用於比較該待比較電壓與基準電壓，並在該待比較電壓高於基準電壓時輸出斷開訊號，反之，則輸出導通訊號。 The power supply device of claim 2, wherein the detection module comprises two resistors (R3, R4) connected in series, and a voltage regulator diode (D1) and a comparator (U1A), a resistor ( R3 and R4) are sequentially connected and electrically connected to the rectifier module for providing a comparator (U1A) with a voltage to be compared for comparison, and the voltage regulator diode (D1) is electrically connected to the rectifier module for The comparator (U1A) is supplied with a reference voltage, and the comparator (U1A) is for comparing the voltage to be compared with the reference voltage, and outputs a disconnection signal when the voltage to be compared is higher than the reference voltage, and vice versa, outputs a communication number. 如申請專利範圍第1項所述之電源裝置，其中該報警模組包括發光二極體(D2)，發光二極體(D2)的負極連接至整流模組，發光二極體(D2)的正極電性連接至檢測模組，若檢測模組輸出低電平的導通訊號，則發光二極體(D2)導通發光，以指示外部電源電壓過高。 The power supply device of claim 1, wherein the alarm module comprises a light emitting diode (D2), the negative electrode of the light emitting diode (D2) is connected to the rectifier module, and the light emitting diode (D2) The positive electrode is electrically connected to the detecting module. If the detecting module outputs a low-level guiding communication number, the light-emitting diode (D2) is turned on to indicate that the external power supply voltage is too high. 如申請專利範圍第2項所述之電源裝置，其中該開關模組包括三極體(Q1)，三極體(Q1)的基極和發射極與檢測模組相連，用於接收檢測模組提供的導通訊號而導通，輸出驅動電壓。 The power supply device of claim 2, wherein the switch module comprises a triode (Q1), and a base and an emitter of the triode (Q1) are connected to the detection module for receiving the detection module. The provided communication number is turned on and the driving voltage is output. 如申請專利範圍第8項所述之電源裝置，其中該開關模組還包括繼電器，用於接收該外部電源電壓，並回應三極體(Q1)輸出的驅動電壓將該外部電源電壓輸出。 The power supply device of claim 8, wherein the switch module further comprises a relay for receiving the external power supply voltage and outputting the external power supply voltage in response to a driving voltage of the output of the triode (Q1). 如申請專利範圍第9項所述之電源裝置，其中該繼電器為 固態繼電器。 The power supply device of claim 9, wherein the relay is solid state relay.
TW97113355A 2008-04-11 2008-04-11 Power apparatus TWI383557B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992723A (en) * 1989-03-31 1991-02-12 Square D Company Fault-powered power supply
US5764495A (en) * 1996-05-01 1998-06-09 Compaq Computer Corporation Variable-frequency variable-input-voltage converter with minimum frequency limit
US20060083031A1 (en) * 2004-09-08 2006-04-20 Progressive Dynamics, Inc. Power converter
TW200709545A (en) * 2005-08-26 2007-03-01 Topower Computer Ind Co Ltd A power supply equipped with an independent overload protection mechanism
CN1303749C (en) * 2002-11-01 2007-03-07 夏普株式会社 Switching mains
TWI279965B (en) * 2001-03-05 2007-04-21 Fujitsu Ltd Overvoltage-protective device for power system, AC/DC converter and DC/DC converter constituting the power system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992723A (en) * 1989-03-31 1991-02-12 Square D Company Fault-powered power supply
US5764495A (en) * 1996-05-01 1998-06-09 Compaq Computer Corporation Variable-frequency variable-input-voltage converter with minimum frequency limit
TWI279965B (en) * 2001-03-05 2007-04-21 Fujitsu Ltd Overvoltage-protective device for power system, AC/DC converter and DC/DC converter constituting the power system
CN1303749C (en) * 2002-11-01 2007-03-07 夏普株式会社 Switching mains
US20060083031A1 (en) * 2004-09-08 2006-04-20 Progressive Dynamics, Inc. Power converter
TW200709545A (en) * 2005-08-26 2007-03-01 Topower Computer Ind Co Ltd A power supply equipped with an independent overload protection mechanism

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