CN106207963A - The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device - Google Patents

The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device Download PDF

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Publication number
CN106207963A
CN106207963A CN201610784187.8A CN201610784187A CN106207963A CN 106207963 A CN106207963 A CN 106207963A CN 201610784187 A CN201610784187 A CN 201610784187A CN 106207963 A CN106207963 A CN 106207963A
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China
Prior art keywords
resistance
diode
voltage
phase
electric capacity
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CN201610784187.8A
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Chinese (zh)
Inventor
阚屹峰
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Hefei Zhibo Electric Co Ltd
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Hefei Zhibo Electric Co Ltd
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Priority to CN201610784187.8A priority Critical patent/CN106207963A/en
Publication of CN106207963A publication Critical patent/CN106207963A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/24Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage
    • H02H3/253Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to undervoltage or no-voltage for multiphase applications, e.g. phase interruption

Abstract

The invention discloses a kind of under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device, including the first diode, second diode, 3rd diode, 4th diode, 5th diode, 6th diode, 7th diode, transient state suppression Zener diode, stabilivolt able to programme, first stabilivolt, first resistance, second resistance, 3rd resistance, 4th resistance, 5th resistance, 6th resistance, 7th resistance, 8th resistance, 9th resistance, first electric capacity, second electric capacity, 3rd electric capacity, first photoelectrical coupler, second photoelectrical coupler, first audion, second metal-oxide-semiconductor and catalyst, the negative electrode of the first diode, the negative electrode of the 3rd diode, the negative electrode of the 5th diode, the negative electrode of one end of the first resistance and transient state suppression Zener diode is all connected with, the anode of the first diode and the negative electrode of the second diode connect.The present invention has under-voltage with open-phase protection, circuit structure is simple, cost is relatively low, reliability is higher.

Description

The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device
Technical field
The present invention relates to circuit protection field, fill with under-voltage open-phase protection particularly to a kind of electromagnetism voltage-stabilizing energy-saving device Put.
Background technology
Using the equipment such as three phase arc welder powered of three-phase alternating current, in the electrical equipment such as threephase motor, often Due to start and stop or the fluctuation of electrical network itself of high power load, cause the overvoltage of three-phase voltage and under-voltage, and three-phase electricity consumption situation Unbalanced, be likely to result in phase shortage and the imbalance of three-phase electricity, be likely to user's wrong actually used when Voltage, result in phase shortage as 220V voltage misconnection to 380V voltage or three phase connections missed, and these situations is likely to Cause the damage of electrical equipment, even cause the fault of electrical network, cause serious consequence.And under-voltage phase shortage of the prior art is protected Protecting effect not ideal, and circuit structure is complicated, hardware cost is higher, and reliability is the highest.
Summary of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, it is provided that one have under-voltage and The electromagnetism voltage-stabilizing energy-saving device that open-phase protection, circuit structure are simple, cost is relatively low, reliability is higher fills with under-voltage open-phase protection Put.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electromagnetism voltage-stabilizing energy-saving device of structure is with under-voltage Phase-lacking protective device, including the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th Diode, the 7th diode, transient state suppression Zener diode, stabilivolt able to programme, the first stabilivolt, the first resistance, the second electricity Resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electric capacity, Two electric capacity, the 3rd electric capacity, the first photoelectrical coupler, the second photoelectrical coupler, the first audion, the second metal-oxide-semiconductor and catalyst, institute State the negative electrode of the first diode, the negative electrode of the 3rd diode, the negative electrode of the 5th diode, one end of the first resistance and transient state suppression The negative electrode of Zener diode is all connected with, and the anode of described first diode is connected with the negative electrode of described second diode, and described The anode of three diodes is connected with the negative electrode of described 4th diode, the anode of described 5th diode and described 6th diode Negative electrode connect, the anode of the anode of described second diode, the anode of the 4th diode and the 6th diode is all connected with, three-phase Node between first phase voltage of alternating current with described first diode and the second diode is connected, described three-phase alternating current Node between second phase voltage with described 3rd diode and the 4th diode is connected, the third phase electricity of described three-phase alternating current Pressure is connected with the node between described 5th diode and the 6th diode, and the other end of described first resistance is respectively with described the The voltage ratio relatively port of one end of two resistance, one end of the first electric capacity and stabilivolt able to programme connects, described second resistance another The anode of one end, the other end of the first electric capacity, the anode of stabilivolt able to programme and the first stabilivolt is all connected with, and described transient state suppresses The anode of Zener diode is connected with described one end of 4th resistance and one end of the 5th resistance respectively by described 3rd resistance, One end of described 5th resistance also the first pin with described first photoelectrical coupler is connected, and the other end of described 5th resistance divides Be not connected with the second pin of described first photoelectrical coupler and the negative electrode of the first stabilivolt, one end of described 4th resistance also with Described second photoelectrical coupler first pin connect, the other end of described 4th resistance respectively with described second photoelectrical coupler The second pin and stabilivolt able to programme negative electrode connect;
3rd pin ground connection of described second photoelectrical coupler, the 4th pin of described second photoelectrical coupler and described the The emitter stage of one audion connects, the 3rd pin of described first photoelectrical coupler by described 9th resistance respectively with described the The base stage of one audion and one end of the 6th resistance connect, the other end ground connection of described 6th resistance, described first audion Grounded collector, the emitter stage of described first audion is connected with one end of described second electric capacity, described first photoelectrical coupler The 4th pin by described 8th resistance respectively with one end, the negative electrode of the 7th diode and the catalyst of described 7th resistance One end connects, and one end of described catalyst is also connected with DC source, and the other end of described 7th resistance is respectively with the described 3rd The positive pole of electric capacity and the other end of the second electric capacity connect, the minus earth of described 3rd electric capacity, the anode of described 7th diode It is connected with the other end of described catalyst and the drain electrode of the second metal-oxide-semiconductor respectively, the grid of described second metal-oxide-semiconductor and described second electricity The other end held connects, the source ground of described second metal-oxide-semiconductor.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, also include the tenth resistance, institute The 4th pin stating the second photoelectrical coupler is connected with the emitter stage of described first audion by described tenth resistance.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, also include the 11st resistance, 3rd pin of described second photoelectrical coupler passes through described 11st resistance eutral grounding.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, also include the 12nd resistance, The colelctor electrode of described first audion passes through described 12nd resistance eutral grounding.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, also include the 13rd resistance, The source electrode of described second metal-oxide-semiconductor passes through described 13rd resistance eutral grounding.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, described first audion is PNP type triode.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device, described second metal-oxide-semiconductor is N ditch Road metal-oxide-semiconductor.
Implement the present invention the under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device, have the advantages that due to Be provided with the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the seven or two Pole pipe, transient state suppression Zener diode, stabilivolt able to programme, the first stabilivolt, the first resistance, the second resistance, the 3rd resistance, the Four resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electric capacity, the second electric capacity, the 3rd electricity Appearance, the first photoelectrical coupler, the second photoelectrical coupler, the first audion, the second metal-oxide-semiconductor and catalyst, its have three-phase overvoltage, Under-voltage and phase shortage integrated protective function, cuts off supply line by actuator thus plays protection electrical equipment and electrical network Effect, its circuit is simple, with low cost, it is not necessary to use sensitive detection chip, and reliability is high;So it has under-voltage and scarce Protect mutually, circuit structure is simple, cost is relatively low, reliability is higher.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation in electromagnetism voltage-stabilizing energy-saving device of the present invention one embodiment of under-voltage phase-lacking protective device Figure.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
At electromagnetism voltage-stabilizing energy-saving device of the present invention with in under-voltage phase-lacking protective device embodiment, this electromagnetism voltage-stabilizing energy-saving device With the structural representation of under-voltage phase-lacking protective device as shown in Figure 1.In Fig. 1, this electromagnetism voltage-stabilizing energy-saving device is protected by under-voltage phase shortage Protection unit include the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, Six diode D6, the 7th diode D7, transient state suppression Zener diode TVS1, stabilivolt T1 able to programme, the first stabilivolt Z1, the One resistance R1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, Eight resistance R8, the 9th resistance R9, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the first photoelectrical coupler U1, the second light Electric coupler U2, the first audion Q1, the second metal-oxide-semiconductor Q2 and catalyst J1.
Wherein, the negative electrode of the first diode D1, the negative electrode of the 3rd diode D3, the negative electrode of the 5th diode D5, the first electricity One end of resistance R1 and the negative electrode of transient state suppression Zener diode TVS1 are all connected with, the anode of the first diode D1 and the second diode The negative electrode of D2 connects, and the anode of the 3rd diode D3 connects with the negative electrode of the 4th diode D4, the anode of the 5th diode D5 and The negative electrode of the 6th diode D6 connects, the anode of the second diode D2, the anode of the 4th diode D4 and the 6th diode D6's Anode is all connected with, and the node between the first phase voltage Ua and the first diode D1 and the second diode D2 of three-phase alternating current is even Connecing, the node between the second phase voltage Ub and the 3rd diode D3 and the 4th diode D4 of three-phase alternating current connects, and three intersect Node between third phase voltage Uc and the 5th diode D5 and the 6th diode D6 of stream electricity connects, another of the first resistance R1 End voltage ratio relatively port R with one end of the second resistance R2, one end of the first electric capacity C1 and stabilivolt T1 able to programme respectively is connected, The other end of the second resistance R2, the other end of the first electric capacity C1, the anode A of stabilivolt T1 able to programme and the sun of the first stabilivolt Z1 Pole is all connected with.
Wherein, the anode of transient state suppression Zener diode TVS1 by the 3rd resistance R3 respectively with one end of the 4th resistance R4 Connecting with one end of the 5th resistance R5, one end of the 5th resistance R5 also the first pin with the first photoelectrical coupler U1 is connected, the The other end of five resistance R5 is connected with second pin of the first photoelectrical coupler U1 and the negative electrode of the first stabilivolt Z1 respectively, and the 4th One end of resistance R4 also the first pin with the second photoelectrical coupler U2 is connected, the other end of the 4th resistance R4 respectively with the second light Second pin of electric coupler U2 and the negative electrode K of stabilivolt T1 able to programme connect.
Wherein, the 3rd pin ground connection of the second photoelectrical coupler U2, the 4th pin and first of the second photoelectrical coupler U2 The emitter stage of audion Q1 connects, the 3rd pin of the first photoelectrical coupler U1 by the 9th resistance R9 respectively with the first audion The base stage of Q1 and one end of the 6th resistance R6 connect, and the other end ground connection of the 6th resistance R6, the colelctor electrode of the first audion Q1 connects Ground, the emitter stage of the first audion Q1 and one end of the second electric capacity C2 connect, and the 4th pin of the first photoelectrical coupler U1 passes through 8th resistance R8 one end with one end, the negative electrode of the 7th diode D7 and the catalyst J1 of the 7th resistance R7 respectively is connected, contact One end of device J1 is also connected with DC source VCC, the other end of the 7th resistance R7 respectively with the positive pole and second of the 3rd electric capacity C3 The other end of electric capacity C2 connects, the minus earth of the 3rd electric capacity C3, the anode of the 7th diode D7 another with catalyst J1 respectively The drain electrode of one end and the second metal-oxide-semiconductor Q2 connects, and the grid of the second metal-oxide-semiconductor Q2 and the other end of the second electric capacity C2 connect, the 2nd MOS The source ground of pipe Q2.
In the present embodiment, the 3rd electric capacity C3 is electrochemical capacitor, and the 8th resistance R8 and the 9th resistance R9 is current-limiting resistance, uses Branch road in the first photoelectrical coupler U1 place carries out overcurrent protection.Second electric capacity C2 is coupling electric capacity, is used for preventing the one or three Interference between pole pipe Q1 and the second metal-oxide-semiconductor Q2.Catalyst J1 is three-phase contactor.
First phase voltage Ua of three-phase alternating current to be detected, the second phase voltage Ub and third phase voltage Uc are through by first After the three phase full bridge rectification that diode D1 to the 6th diode D6 forms, obtain the voltage of DC pulse, through the first resistance R1 With the voltage ratio relatively port R that the voltage that obtains after the second resistance R2 dividing potential drop accesses stabilivolt T1 able to programme, as voltage ratio relatively port R Voltage peak less than 2.5V time, the anode A of stabilivolt T1 able to programme and negative electrode K disconnect, due to the first stabilivolt Z1 and first The clamping action of the input of photoelectrical coupler U1, the second photoelectrical coupler U2 does not works, and will not drag down the door of the second metal-oxide-semiconductor Q2 Pole tension, catalyst J1 adhesive, electrical equipment normally works.
As the voltage peak high pressure 2.5V of the first resistance R1 and the second resistance R2, the anode A of stabilivolt T1 able to programme and Negative electrode K is equivalent to the stabilivolt of 2V, and the voltage stabilizing value of the first stabilivolt Z1 is 1.5V, less than the voltage stabilizing of stabilivolt T1 able to programme Value, therefore the second photoelectrical coupler U2 work, the 3rd pin of the second photoelectrical coupler U2 and the conducting of the 4th pin, the 3rd electric capacity The voltage of C3 is pulled low, and the second metal-oxide-semiconductor Q2 disconnects, and catalyst J1 disconnects.This is overvoltage crowbar, regulate the first resistance R1 and The intrinsic standoff ratio of the second resistance R2 can regulate the size of overvoltage protection voltage.
In the present embodiment, under-voltage protection and open-phase protection share circuit kit, and after three-phase alternating current is rectified, obtain is straight The voltage of the stream pulsation voltage higher than transient state suppression Zener diode TVS1, so, the first photoelectrical coupler U1 just can work, because of This is when occurring under-voltage, and transient state suppression Zener diode TVS1 can not be breakdown, and the first photoelectrical coupler U1 does not works, the first light 3rd pin of electric coupler U1 becomes low level, the first audion Q1 conducting, by the 3rd electric capacity C3 short circuit dischange, thus drags down The gate voltage of the second metal-oxide-semiconductor Q2, turns off catalyst J1.The magnitude of voltage changing transient state suppression Zener diode TVS1 can change The voltage swing of under-voltage protection.
When input generation phase shortage, the first phase voltage Ua of three-phase alternating current, the second phase voltage Ub and third phase voltage Uc becomes single-phase input, and the waveform after its rectification is single-phase rectifier waveform, and single-phase rectifier waveform valley is the lowest, can arrive as little as 0V, therefore transient state suppression Zener diode TVS1 is in not on-state, therefore at the first photoelectrical coupler U1 for some time In pulsed ON state, in this state, during the first photoelectrical coupler U1 conducting, the first audion Q1 turns off, the 3rd electric capacity C3 is electrically charged by the 7th resistance R7, and voltage slowly raises, when the first photoelectrical coupler U1 turns off, and the first audion Q1 conducting, To the 3rd electric capacity C3 electric discharge, owing to discharge current is the electric current after the first audion Q1 amplifies, therefore discharge quickly, and by Relatively big in the resistance value ratio of the 7th resistance R7, the capacitance of the 3rd electric capacity C3 is the biggest, and its charge constant is bigger, therefore exists When next discharge pulse arrives, the voltage of the 3rd electric capacity C3 is not the most filled with, therefore the 3rd electric capacity C3 two ends or Directly being in low-voltage state, now the second metal-oxide-semiconductor Q2 closes, and catalyst J1 disconnects.
The structural circuit of the present invention is simple, with low cost, it is achieved that multi-protective function, it is not necessary to use sensitive detection Chip, such as voltage comparator, single-chip microcomputer etc., reliability is higher.Photoelectrical coupler (the first smooth thermocouple is used between forceful electric power and light current Clutch U1 and the second photoelectrical coupler U2) completely isolated, it is ensured that safety, improve capacity of resisting disturbance.Use detection electrical network The method of voltage peak, this electromagnetism voltage-stabilizing energy-saving device circuit of under-voltage phase-lacking protective device uses ripple control mode, only The peak value wanting line voltage reaches to trigger the situation of the first photoelectrical coupler U1 and the second photoelectrical coupler U2 work, rear end Circuit can be carried out abnormal conditions and judges, because the second metal-oxide-semiconductor Q2 of rear end is designed as turning off by force weak opening state.The present invention There is three-phase overvoltage, under-voltage and phase shortage integrated protective function, cut off supply line by actuator thus play protection electricity consumption Equipment and the effect of electrical network, under-voltage open-phase protection effect is preferable.
In the present embodiment, this electromagnetism voltage-stabilizing energy-saving device also includes the tenth resistance R10 with under-voltage phase-lacking protective device, second 4th pin of photoelectrical coupler U2 is connected by the emitter stage of the tenth resistance R10 and the first audion Q1.Tenth resistance R10 is Current-limiting resistance, for the branch road of the first audion Q1 and the second metal-oxide-semiconductor Q2 place is carried out overcurrent protection, improves this electromagnetism voltage stabilizing The energy saver security performance of under-voltage phase-lacking protective device.
In the present embodiment, this electromagnetism voltage-stabilizing energy-saving device also includes the 11st resistance R11 with under-voltage phase-lacking protective device, the 3rd pin of two photoelectrical coupler U2 passes through the 11st resistance R11 ground connection.11st resistance R11 is current-limiting resistance, for right The branch road at the second photoelectrical coupler U2 place carries out overcurrent protection, improves this under-voltage phase shortage of electromagnetism voltage-stabilizing energy-saving device further The security performance of protection device.
In the present embodiment, this electromagnetism voltage-stabilizing energy-saving device also includes the 12nd resistance R12 with under-voltage phase-lacking protective device, the The colelctor electrode of one audion Q1 passes through the 12nd resistance R12 ground connection.12nd resistance R12 is current-limiting resistance, for the one or three The branch road at the colelctor electrode place of pole pipe Q1 carries out overcurrent protection, further improves this under-voltage phase shortage of electromagnetism voltage-stabilizing energy-saving device The security performance of protection device.
In the present embodiment, this electromagnetism voltage-stabilizing energy-saving device also includes the 13rd resistance R13 with under-voltage phase-lacking protective device, the The source electrode of two metal-oxide-semiconductor Q2 passes through the 13rd resistance R13 ground connection.13rd resistance R13 is current-limiting resistance, for the second metal-oxide-semiconductor The branch road at the source electrode place of Q2 carries out overcurrent protection.
It is noted that in the present embodiment, the first audion Q1 is PNP type triode.Second metal-oxide-semiconductor Q2 is N-channel Metal-oxide-semiconductor.Certainly, under the certain situation of the present embodiment, the first audion Q1 can be NPN type triode, and the second metal-oxide-semiconductor Q2 is also Can be P-channel metal-oxide-semiconductor, but at this moment this electromagnetism voltage-stabilizing energy-saving device also wants corresponding with the circuit structure of under-voltage phase-lacking protective device Change.
In a word, the present invention has three-phase overvoltage, under-voltage and phase shortage integrated protective function, cuts off supply lines by actuator Road thus play protection electrical equipment and the effect of electrical network, open-phase protection effect that it is under-voltage is preferable, the circuit structure letter of the present invention Single, cost is relatively low, and reliability is higher.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (7)

1. the under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device, it is characterised in that include the first diode, the two or two Pole pipe, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, transient state suppress voltage stabilizing two pole Pipe, stabilivolt able to programme, the first stabilivolt, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th Resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first photoelectrical coupler, Two photoelectrical couplers, the first audion, the second metal-oxide-semiconductor and catalyst, the negative electrode of described first diode, the moon of the 3rd diode The negative electrode of pole, the negative electrode of the 5th diode, one end of the first resistance and transient state suppression Zener diode is all connected with, and the described 1st The anode of pole pipe is connected with the negative electrode of described second diode, the anode of described 3rd diode and the moon of described 4th diode Pole connects, and the anode of described 5th diode is connected with the negative electrode of described 6th diode, the anode of described second diode, the The anode of four diodes and the anode of the 6th diode are all connected with, the first phase voltage of three-phase alternating current and described first diode With the node that second between diode connects, the second phase voltage of described three-phase alternating current and described 3rd diode and the four or two Node between the pipe of pole connects, between third phase voltage and described 5th diode and the 6th diode of described three-phase alternating current Node connect, the other end of described first resistance respectively with one end, one end of the first electric capacity of described second resistance and can compile The voltage ratio of journey stabilivolt relatively port connects, the other end of described second resistance, the other end of the first electric capacity, stabilivolt able to programme Anode and the anode of the first stabilivolt be all connected with, the anode of described transient state suppression Zener diode is divided by described 3rd resistance Be not connected with described one end of 4th resistance and one end of the 5th resistance, one end of described 5th resistance also with described first photoelectricity First pin of bonder connects, the other end of described 5th resistance respectively with the second pin of described first photoelectrical coupler and The negative electrode of the first stabilivolt connects, and one end of described 4th resistance also the first pin with described second photoelectrical coupler is connected, The other end of described 4th resistance connects with the second pin of described second photoelectrical coupler and the negative electrode of stabilivolt able to programme respectively Connect;
3rd pin ground connection of described second photoelectrical coupler, the 4th pin and the described 1st of described second photoelectrical coupler The emitter stage of pole pipe connects, and the 3rd pin of described first photoelectrical coupler passes through described 9th resistance respectively with the described 1st The base stage of pole pipe and one end of the 6th resistance connect, the other end ground connection of described 6th resistance, the current collection of described first audion Pole ground connection, the emitter stage of described first audion is connected with one end of described second electric capacity, the of described first photoelectrical coupler Four pins by described 8th resistance respectively with one end, the negative electrode of the 7th diode and one end of catalyst of described 7th resistance Connect, one end of described catalyst is also connected with DC source, the other end of described 7th resistance respectively with described 3rd electric capacity Positive pole and the other end of the second electric capacity connect, the minus earth of described 3rd electric capacity, the anode of described 7th diode is respectively It is connected with the other end of described catalyst and the drain electrode of the second metal-oxide-semiconductor, the grid of described second metal-oxide-semiconductor and described second electric capacity The other end connects, the source ground of described second metal-oxide-semiconductor.
The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device the most according to claim 1, it is characterised in that also include Tenth resistance, the 4th pin of described second photoelectrical coupler is by the emitter stage of described tenth resistance with described first audion Connect.
The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device the most according to claim 2, it is characterised in that also include 11st resistance, the 3rd pin of described second photoelectrical coupler passes through described 11st resistance eutral grounding.
4. according to the under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device described in claims 1 to 3 any one, its feature Being, also include the 12nd resistance, the colelctor electrode of described first audion passes through described 12nd resistance eutral grounding.
The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device the most according to claim 4, it is characterised in that also include 13rd resistance, the source electrode of described second metal-oxide-semiconductor passes through described 13rd resistance eutral grounding.
The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device the most according to claim 1, it is characterised in that described One audion is PNP type triode.
The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device the most according to claim 1, it is characterised in that described Two metal-oxide-semiconductors are N-channel MOS pipe.
CN201610784187.8A 2016-08-30 2016-08-30 The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device Pending CN106207963A (en)

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TWI689076B (en) * 2017-03-31 2020-03-21 大陸商萬民半導體(澳門)有限公司 High surge bi-directional transient voltage suppressor

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CN104577968A (en) * 2015-02-05 2015-04-29 上海和宗焊接设备制造有限公司 Three-phase overvoltage, under-voltage and default phase integrated protection circuit
CN104716625A (en) * 2013-12-14 2015-06-17 天津市飞美通电梯有限公司 Phase-lack protection circuit for elevators

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202217019U (en) * 2011-09-15 2012-05-09 广州三晶电气有限公司 Three-phase supply input open phase detection circuit
CN104716625A (en) * 2013-12-14 2015-06-17 天津市飞美通电梯有限公司 Phase-lack protection circuit for elevators
CN104577968A (en) * 2015-02-05 2015-04-29 上海和宗焊接设备制造有限公司 Three-phase overvoltage, under-voltage and default phase integrated protection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI689076B (en) * 2017-03-31 2020-03-21 大陸商萬民半導體(澳門)有限公司 High surge bi-directional transient voltage suppressor
CN108332137A (en) * 2018-03-02 2018-07-27 国网山东省电力公司泗水县供电公司 A kind of electric power first-aid lighting device

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Application publication date: 20161207