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 PDFInfo
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- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/24—Emergency 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
- H02H3/253—Emergency 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
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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
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.
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| CN201610784187.8A CN106207963A (en) | 2016-08-30 | 2016-08-30 | The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device |
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| CN201610784187.8A CN106207963A (en) | 2016-08-30 | 2016-08-30 | The under-voltage phase-lacking protective device of electromagnetism voltage-stabilizing energy-saving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| 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 |
| 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 |
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| 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)
| 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 |