CN205487947U - Magnetic latching relay drive circuit of intelligence condenser - Google Patents
Magnetic latching relay drive circuit of intelligence condenser Download PDFInfo
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- CN205487947U CN205487947U CN201620268333.7U CN201620268333U CN205487947U CN 205487947 U CN205487947 U CN 205487947U CN 201620268333 U CN201620268333 U CN 201620268333U CN 205487947 U CN205487947 U CN 205487947U
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Abstract
The utility model provides a magnetic latching relay drive circuit of intelligence condenser, include: power, power driving circuit, low voltage detect circuit, relay drive circuit, magnetic latching relay, power driving circuit connects the low voltage detect circuit, low voltage detect circuit connection relay drive circuit, relay drive circuit connects magnetic latching relay. The utility model discloses add a low voltage detect circuit that constitutes by optoelectronic coupler, utilized power and outage drive power supply's voltage to determine and whether cut off the power supply, has realized the own function that detects, when the system in case after cutting off the power supply, sent closed signals by force by this circuit, broken off magnetic latching relay. Thereby just do not have the production of shoving when the system goes up the electricity again, can not influence the stability of system.
Description
Technical field
This utility model relates to electronic technology field, particularly to the drive circuit of magnetic latching relay of a kind of Intelligent capacitor.
Background technology
The Intelligent capacitor of a new generation is because modular construction, and volume is little, field connection is simple, easy to maintenance, is more and more applied.Development along with Intelligent capacitor, what present most driving actuator was selected is magnetic latching relay, this relay has a feature, and he is only closing, power supply is just needed to power during disconnection, and close, disconnecting is all steady statue, have any different in a kind of steady statue of general relay, based on this feature, if system once has a power failure, if drive circuit reacts not in time, magnetic latching relay will keep standing state, that is if on-state, he is the most also in on-state, disconnect also in off-state, the system that so will result in once powers on, the original state of electric capacity is equivalent to short circuit, system can be produced the biggest dash current owing to there being magnetic latching relay to be in closure state；Existing frequently-used scheme be by Single Chip Microcomputer (SCM) program detection external voltage the lowest time, send shutdown signal by force, disconnect magnetic latching relay, but owing to the work of low voltage likely single-chip microcomputer is abnormal, and shutdown signal by force cannot be sent, disconnect magnetic latching relay, be not the most reliable；Have a strong impact on the reliability of electric power system.
Such as the utility model patent that China Patent Publication No. is CN 201656487 U, it is provided that a kind of Intelligent capacitor.This utility model integrates miniature circuit breaker, capacitor, the product wiring made is simple, easy to assembly, volume is less, use the mode of communication, can remotely and the communication of computer, but, it is in closure state after magnetic latching relay power-off in this Intelligent capacitor, once access power supply, system can be produced the biggest dash current, have a strong impact on the reliability of electric power system.
Utility model content
The purpose of this utility model is intended at least solve one of described technological deficiency.
To this end, the purpose of this utility model is to propose the drive circuit of magnetic latching relay of a kind of Intelligent capacitor that oneself can detect and disconnect by force magnetic latching relay.
To achieve these goals, embodiment of the present utility model provides the drive circuit of magnetic latching relay of a kind of Intelligent capacitor, including: power supply, power driving circuit, low-voltage detection circuit, relay drive circuit, magnetic latching relay；
Described power driving circuit connects low-voltage detection circuit, and described low-voltage detection circuit connects relay drive circuit, and described relay drive circuit connects magnetic latching relay；
Described power driving circuit includes driving power-switching circuit, power-off to drive power-switching circuit, the input of described driving power-switching circuit connects power supply, outfan output drives power supply and is connected with low-voltage detection circuit, described power-off drives the input of power-switching circuit to connect power supply, and outfan output power-off drives power supply and low-voltage detection circuit and is connected；
Described relay drive circuit includes brachium pontis continuous current circuit circuit, H-bridge drive circuit, the input of described brachium pontis continuous current circuit circuit connects the outfan of low-voltage detection circuit, its outfan connects H-bridge drive circuit, and described H-bridge drive circuit connects magnetic latching relay.
Preferably, described power driving circuit includes the first resistance, the second resistance, the first diode, the second diode, the first electrochemical capacitor, the 7th diode, the 8th diode, the second electrochemical capacitor；One end of described first resistance is input and connects power supply, another terminates the anode of the first diode, the anode of the 7th diode, the negative electrode of described first diode connects the negative electrode of the 8th diode, the negative electrode of the second diode, one end of second resistance, the positive pole of the first electrochemical capacitor and drive power supply for output, another of described second resistance terminates the negative pole of the first electrochemical capacitor, the anode of the second diode, the negative pole of the second electrochemical capacitor and all ground connection, the negative electrode of described 7th diode connects the anode of the 8th diode, positive pole and the output power-off of the second electrochemical capacitor drive power supply.
Preferably, described driving power-switching circuit is made up of the first diode, the second diode, the first electrochemical capacitor.
Preferably, described power-off drives power-switching circuit to be made up of the 7th diode, the 8th diode, the second electrochemical capacitor.
Preferably, described low-voltage detection circuit includes the first photoelectrical coupler, 15th resistance, second photoelectrical coupler, 16th resistance, 17th resistance, the anode of described first photoelectrical coupler connects power-off and drives power supply, its negative electrode connects one end of the 15th resistance, its current collection the extremely first outfan, its grounded emitter, another termination power of described 15th resistance, the anode of described second photoelectrical coupler connects power-off and drives power supply, its negative electrode connects one end of the 16th resistance, its colelctor electrode connects power-off and drives power supply, its emitter stage connects one end of the 17th resistance, another termination power of described 16th resistance, the other end of described 17th resistance is the second outfan.
Preferably, described relay drive circuit includes the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the first audion, the second audion, the 3rd audion, the 4th audion, the 5th audion, the 6th audion, the 3rd diode, the 4th diode, the 5th diode, the 6th diode
Termination one end of the 8th resistance, the base stage of the 5th audion, one end of the 13rd resistance, one end for the 14th resistance for described 7th resistance, the base stage of the 4th audion and be that the first input controls end,
Another termination other end of the 14th resistance of described 7th resistance and be that the second input controls end,
The emitter stage of another termination the 5th audion of described 8th resistance and all ground connection, the colelctor electrode of described 5th audion connects one end of the 6th resistance, one end of another termination the 3rd resistance of described 6th resistance, the base stage of the first audion, the emitter stage of described first audion connects the other end of the 3rd resistance, the negative electrode of the 3rd diode, the negative electrode of the 4th diode, one end of 4th resistance, the emitter stage of the second audion and all connect driving power supply, its colelctor electrode connects the anode of the 3rd diode, the colelctor electrode of the 3rd audion, the negative electrode of the 5th diode and be the first relay incoming end,
The emitter stage of described 3rd audion connects one end of the 12nd resistance, the anode of the 5th diode, the anode of the 6th diode, the emitter stage of the 4th audion, one end of the 13rd resistance and all ground connection, its base stage connects the other end of the 12nd resistance, one end of the 11st resistance, one end of the 9th resistance, one end of the tenth resistance and is that the 4th input controls end
Another termination other end of the tenth resistance of described 11st resistance and be that the 3rd input controls end,
The colelctor electrode of described 6th audion connects one end of the 5th resistance, its emitter stage connects the other end and all ground connection of the 9th resistance, the base stage of described second audion connects the other end of the 5th resistance, the other end of the 4th resistance, and its colelctor electrode connects the anode of the 4th diode, the negative electrode of the 6th diode, the colelctor electrode of the 4th audion and is the second relay incoming end.
Preferably, described H-bridge drive circuit is made up of the first audion, the second audion, the 3rd audion, the 4th audion, the 5th audion, the 6th audion.
Preferably, described brachium pontis continuous current circuit circuit is made up of the 3rd diode, the 4th diode, the 5th diode, the 6th diode.
Preferably, described first relay incoming end connects one end of magnetic latching relay.
Preferably, described second relay incoming end connects the other end of magnetic latching relay.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor of the present utility model, has the advantage that as follows:
1, magnetic latching relay of the present utility model is to be driven by the H-bridge drive circuit being made up of multiple audions, has required driving electric current low, the features such as the driving electric current i.e. consuming base stage is little, and power consumption is few, and the loss of device self is little, and switching speed is fast.
2, this utility model with the addition of a low-voltage detection circuit being made up of photoelectrical coupler, power supply and power-off is utilized to drive the voltage of power supply to judge whether power-off, it is achieved oneself detects function, after system once power-off, sent shutdown signal by force by this circuit, disconnect magnetic latching relay.Thus generation of would not shoving when system re-powers, do not interfere with the stability of system.
3, relay drive circuit of the present utility model receives the driving signal from low-voltage detection circuit, completes to turn off by force magnetic latching relay, the stability of safeguards system.
4, simple in construction of the present utility model, components and parts used are fewer and low price, are substantially reduced the manufacturing cost of entirety.
Aspect and advantage that this utility model is additional will part be given in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will be apparent from easy to understand, wherein from combining the accompanying drawings below description to embodiment:
Fig. 1 is structured flowchart of the present utility model；
Fig. 2 is the circuit theory diagrams of power driving circuit of the present utility model；
Fig. 3 is the circuit theory diagrams of low-voltage detection circuit of the present utility model and relay drive circuit；
Fig. 4 is the circuit theory diagrams of magnetic latching relay of the present utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.
In this utility model, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor of this utility model embodiment, as it is shown in figure 1, include: power supply power, power driving circuit 1, low-voltage detection circuit 2, relay drive circuit 3, magnetic latching relay K1.
Wherein, power driving circuit 1 connects low-voltage detection circuit 2, and low-voltage detection circuit 2 connects relay drive circuit 3, and relay drive circuit 3 connects magnetic latching relay K1.
Specifically, power driving circuit 1 includes driving power-switching circuit, power-off to drive power-switching circuit, the input driving power-switching circuit connects power supply power, outfan output drives power supply VCC and is connected with low-voltage detection circuit 2, power-off drives the input of power-switching circuit to connect power supply power, and outfan output power-off drives power supply VCC1 and low-voltage detection circuit 2 and is connected.
Relay drive circuit 3 includes brachium pontis continuous current circuit circuit, H-bridge drive circuit, and the input of brachium pontis continuous current circuit circuit connects the outfan of low-voltage detection circuit 2, and its outfan connects H-bridge drive circuit, and H-bridge drive circuit connects magnetic latching relay K1.
With reference to Fig. 2, below power driving circuit is specifically described:
Power driving circuit 1 includes the first resistance R1, the second resistance R3, the first diode D1, the second diode D2, the first electrochemical capacitor C1, the 7th diode D7, the 8th diode D8, the second electrochemical capacitor C2；One end of first resistance R1 is input and meets power supply power, another terminates the anode of the first diode D1, the anode of the 7th diode D7, the negative electrode of the first diode D1 connects the negative electrode of the 8th diode D8, the negative electrode of the second diode D2, one end of second resistance R2, the positive pole of the first electrochemical capacitor C1 and drive power supply VCC for output, another of second resistance R2 terminates the negative pole of the first electrochemical capacitor C1, the anode of the second diode D2, the C2 negative pole of the second electrochemical capacitor and all ground connection, the negative electrode of the 7th diode D7 connects the anode of the 8th diode D8, positive pole and the output power-off of the second electrochemical capacitor C2 drive power supply VCC1.
Wherein, power-switching circuit is driven to be made up of the first diode, the second diode, the first electrochemical capacitor.
Power-off drives power-switching circuit to be made up of the 7th diode, the 8th diode, the second electrochemical capacitor.
With reference to Fig. 3, below low-voltage detection circuit is specifically described:
nullLow voltage test electricity,2 include the first photoelectrical coupler P1、15th resistance R15、Second photoelectrical coupler P2、16th resistance R16、17th resistance R17，The anode of the first photoelectrical coupler P1 connects power-off and drives power supply VCC1，Its negative electrode connects one end of the 15th resistance R15，Its current collection the extremely first outfan (P1 end)，Its grounded emitter，Another termination power power of the 15th resistance R15，The anode of the second photoelectrical coupler P2 connects power-off and drives power supply VCC1，Its negative electrode connects one end of the 16th resistance R16，Its colelctor electrode connects power-off and drives power supply VCC1，Its emitter stage connects one end of the 17th resistance R17，Another termination power power of the 16th resistance R16，The other end of the 17th resistance R17 is the second outfan (P2 end).
With reference to Fig. 3, below relay drive circuit is specifically described:
Relay drive circuit 3 includes the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the first audion Q1, the second audion Q2, the 3rd audion Q3, the 4th audion Q4, the 5th audion Q5, the 6th audion Q6, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6
Termination one end of the 8th resistance R8, the base stage of the 5th audion Q5, one end of the 13rd resistance R13, one end of the 14th resistance R14 of 7th resistance R7, the base stage of the 4th audion Q4 and be that the first input controls end (P1 end),
Another termination other end of the 14th resistance R14 of 7th resistance R7 and be that the second input controls end (DR_ON end),
The emitter stage of another termination the 5th audion Q5 of the 8th resistance R8 and all ground connection, the colelctor electrode of the 5th audion Q5 connects one end of the 6th resistance R6, one end of another termination the 3rd resistance R3 of the 6th resistance R6, the base stage of the first audion Q1, the emitter stage of the first audion Q1 connects the other end of the 3rd resistance R3, the negative electrode of the 3rd diode D3, the negative electrode of the 4th diode D4, one end of 4th resistance R4, the emitter stage of the second audion Q2 and all meet driving power supply VCC, its colelctor electrode connects the anode of the 3rd diode D3, the colelctor electrode of the 3rd audion Q3, the negative electrode of the 5th diode D5 and be the first relay incoming end (V1+/-),
The emitter stage of the 3rd audion Q3 connects one end of the 12nd resistance R12, the anode of the 5th diode D5, the anode of the 6th diode D6, the emitter stage of the 4th audion Q4, one end of the 13rd resistance R13 and all ground connection, its base stage connects the other end of the 12nd resistance R12, one end of the 11st resistance R11, one end of the 9th resistance R9, one end of the tenth resistance R10 and is that the 4th input controls end (P2 end)
Another termination other end of the tenth resistance R10 of 11st resistance R11 and be the 3rd input control end ((DR_OFF end),
The colelctor electrode of the 6th audion Q6 connects one end of the 5th resistance R5, its emitter stage connects the other end and all ground connection of the 9th resistance R9, the base stage of the second audion Q2 connects the other end of the 5th resistance R5, the other end of the 4th resistance R4, and its colelctor electrode connects the anode of the 4th diode D4, the negative electrode of the 6th diode D6, the colelctor electrode of the 4th audion Q4 and is the second relay incoming end (V1-/+).
Wherein, H-bridge drive circuit is made up of the first audion Q1, the second audion Q2, the 3rd audion Q3, the 4th audion Q4, the 5th audion Q5, the 6th audion Q6.
Brachium pontis continuous current circuit circuit is made up of the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6.
Fig. 4 is the circuit theory diagrams of magnetic latching relay, and a termination first relay incoming end of magnetic latching relay, another terminates the second relay incoming end.
Operation principle is as follows:
1, in the case of not having a power failure, input power power drives signal power source Vcc1 higher than power-off, and such photoelectrical coupler P1, P2 are output as high-impedance state, does not affect normal signal input and controls；
When input signal DR_ON be high level, DR_OFF be low level time, audion Q4, Q5 turn on, and audion Q3, Q6 end, and audion Q5 causes audion Q1 to turn on, audion Q6 cut-off causes audion Q2 to end, so that magnetic latching relay K1 bears forward voltage and turns on.
When input signal DR_ON be low level, DR_OFF be high level time, audion Q4, Q5 end, and audion Q3, Q6 turn on, and audion Q5 cut-off causes audion Q1 to end, audion Q6 causes audion Q2 to turn on, so that magnetic latching relay K1 bears backward voltage and disconnects.
When input signal DR_ON be low level, DR_OFF be low level time, audion Q4, Q5 end, and audion Q3, Q6 end, and audion Q5 cut-off causes audion Q1 to end, audion Q6 cut-off causes audion Q2 to end, so that magnetic latching relay K1 is not subject to voltage and keeps current state.
2, when system blackout, input signal DR_ON, it is all low level that DR_OFF loses power supply, and input power power drastically declines during dead electricity, it is basically unchanged owing to the unilateral conduction of diode remains powered off driving signal power source Vcc1, and now power-off drives signal power source Vcc1 more than input power power, cause photoelectrical coupler P1, P2 turns on, so photoelectrical coupler P1 output low level, optocoupler P2 exports high level, and make audion Q4 this moment, Q5 ends, audion Q3, Q6 turns on, audion Q5 cut-off causes audion Q1 to end, audion Q6 causes audion Q2 to turn on, so that magnetic latching relay K1 bears backward voltage and disconnects.
Magnetic latching relay of the present utility model is that the H-bridge drive circuit consisted of audion drives, simultaneously drive input control end and on a low voltage test being made up of photoelectrical coupler, the shutoff magnetic latching relay circuit by force of output drive signal simultaneously.So after system once power-off, this circuit send shutdown signal by force, disconnect magnetic latching relay.Thus generation of would not shoving when system re-powers, do not interfere with the stability of system.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although above it has been shown and described that embodiment of the present utility model, it is understandable that, above-described embodiment is exemplary, it is not intended that to restriction of the present utility model, above-described embodiment can be changed in the range of this utility model in the case of without departing from principle of the present utility model and objective, revises, replace and modification by those of ordinary skill in the art.Scope of the present utility model is extremely equal to by claims and limits.
Claims (10)
1. the drive circuit of magnetic latching relay of an Intelligent capacitor, it is characterised in that including: power supply, power driving circuit, low-voltage detection circuit, relay drive circuit, magnetic latching relay；
Described power driving circuit connects low-voltage detection circuit, and described low-voltage detection circuit connects relay drive circuit, and described relay drive circuit connects magnetic latching relay；
Described power driving circuit includes driving power-switching circuit, power-off to drive power-switching circuit, the input of described driving power-switching circuit connects power supply, outfan output drives power supply and is connected with low-voltage detection circuit, described power-off drives the input of power-switching circuit to connect power supply, and outfan output power-off drives power supply and low-voltage detection circuit and is connected；
Described relay drive circuit includes brachium pontis continuous current circuit circuit, H-bridge drive circuit, the input of described brachium pontis continuous current circuit circuit connects the outfan of low-voltage detection circuit, its outfan connects H-bridge drive circuit, and described H-bridge drive circuit connects magnetic latching relay.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 1, it is characterized in that, described power driving circuit includes the first resistance, the second resistance, the first diode, the second diode, the first electrochemical capacitor, the 7th diode, the 8th diode, the second electrochemical capacitor；One end of described first resistance is input and connects power supply, another terminates the anode of the first diode, the anode of the 7th diode, the negative electrode of described first diode connects the negative electrode of the 8th diode, the negative electrode of the second diode, one end of second resistance, the positive pole of the first electrochemical capacitor and drive power supply for output, another of described second resistance terminates the negative pole of the first electrochemical capacitor, the anode of the second diode, the negative pole of the second electrochemical capacitor and all ground connection, the negative electrode of described 7th diode connects the anode of the 8th diode, positive pole and the output power-off of the second electrochemical capacitor drive power supply.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 2, it is characterised in that described driving power-switching circuit is made up of the first diode, the second diode, the first electrochemical capacitor.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 2, it is characterised in that described power-off drives power-switching circuit to be made up of the 7th diode, the 8th diode, the second electrochemical capacitor.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 1, it is characterized in that, described low-voltage detection circuit includes the first photoelectrical coupler, 15th resistance, second photoelectrical coupler, 16th resistance, 17th resistance, the anode of described first photoelectrical coupler connects power-off and drives power supply, its negative electrode connects one end of the 15th resistance, its current collection the extremely first outfan, its grounded emitter, another termination power of described 15th resistance, the anode of described second photoelectrical coupler connects power-off and drives power supply, its negative electrode connects one end of the 16th resistance, its colelctor electrode connects power-off and drives power supply, its emitter stage connects one end of the 17th resistance, another termination power of described 16th resistance, the other end of described 17th resistance is the second outfan.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 1, it is characterized in that, described relay drive circuit includes the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the first audion, the second audion, the 3rd audion, the 4th audion, the 5th audion, the 6th audion, the 3rd diode, the 4th diode, the 5th diode, the 6th diode
Termination one end of the 8th resistance, the base stage of the 5th audion, one end of the 13rd resistance, one end for the 14th resistance for described 7th resistance, the base stage of the 4th audion and be that the first input controls end,
Another termination other end of the 14th resistance of described 7th resistance and be that the second input controls end,
The emitter stage of another termination the 5th audion of described 8th resistance and all ground connection, the colelctor electrode of described 5th audion connects one end of the 6th resistance, one end of another termination the 3rd resistance of described 6th resistance, the base stage of the first audion, the emitter stage of described first audion connects the other end of the 3rd resistance, the negative electrode of the 3rd diode, the negative electrode of the 4th diode, one end of 4th resistance, the emitter stage of the second audion and all connect driving power supply, its colelctor electrode connects the anode of the 3rd diode, the colelctor electrode of the 3rd audion, the negative electrode of the 5th diode and be the first relay incoming end,
The emitter stage of described 3rd audion connects one end of the 12nd resistance, the anode of the 5th diode, the anode of the 6th diode, the emitter stage of the 4th audion, one end of the 13rd resistance and all ground connection, its base stage connects the other end of the 12nd resistance, one end of the 11st resistance, one end of the 9th resistance, one end of the tenth resistance and is that the 4th input controls end
Another termination other end of the tenth resistance of described 11st resistance and be that the 3rd input controls end,
The colelctor electrode of described 6th audion connects one end of the 5th resistance, its emitter stage connects the other end and all ground connection of the 9th resistance, the base stage of described second audion connects the other end of the 5th resistance, the other end of the 4th resistance, and its colelctor electrode connects the anode of the 4th diode, the negative electrode of the 6th diode, the colelctor electrode of the 4th audion and is the second relay incoming end.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 6, it is characterised in that described H-bridge drive circuit is made up of the first audion, the second audion, the 3rd audion, the 4th audion, the 5th audion, the 6th audion.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 6, it is characterised in that described brachium pontis continuous current circuit circuit is made up of the 3rd diode, the 4th diode, the 5th diode, the 6th diode.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 6, it is characterised in that described first relay incoming end connects one end of magnetic latching relay.
The drive circuit of magnetic latching relay of a kind of Intelligent capacitor the most as claimed in claim 6, it is characterised in that described second relay incoming end connects the other end of magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268333.7U CN205487947U (en) | 2016-03-31 | 2016-03-31 | Magnetic latching relay drive circuit of intelligence condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268333.7U CN205487947U (en) | 2016-03-31 | 2016-03-31 | Magnetic latching relay drive circuit of intelligence condenser |
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| Publication Number | Publication Date |
|---|---|
| CN205487947U true CN205487947U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620268333.7U Expired - Fee Related CN205487947U (en) | 2016-03-31 | 2016-03-31 | Magnetic latching relay drive circuit of intelligence condenser |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253211A (en) * | 2016-08-18 | 2016-12-21 | 北京索英电气技术有限公司 | A kind of magnetic latching relay automatically controls method and the device thereof that contact disconnects |
| CN106486978A (en) * | 2016-12-22 | 2017-03-08 | 北京海林节能科技股份有限公司 | Power-down protection apparatus based on magnetic latching relay |
| CN110554233A (en) * | 2019-10-12 | 2019-12-10 | 深圳市欧瑞博科技有限公司 | fault current detection device and method applied to intelligent switch |
-
2016
- 2016-03-31 CN CN201620268333.7U patent/CN205487947U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253211A (en) * | 2016-08-18 | 2016-12-21 | 北京索英电气技术有限公司 | A kind of magnetic latching relay automatically controls method and the device thereof that contact disconnects |
| CN106486978A (en) * | 2016-12-22 | 2017-03-08 | 北京海林节能科技股份有限公司 | Power-down protection apparatus based on magnetic latching relay |
| CN106486978B (en) * | 2016-12-22 | 2019-03-19 | 北京海林节能科技股份有限公司 | Power-down protection apparatus based on magnetic latching relay |
| CN110554233A (en) * | 2019-10-12 | 2019-12-10 | 深圳市欧瑞博科技有限公司 | fault current detection device and method applied to intelligent switch |
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