CN206728352U - A kind of electronic switch of micro-current control - Google Patents
A kind of electronic switch of micro-current control Download PDFInfo
- Publication number
- CN206728352U CN206728352U CN201720620352.6U CN201720620352U CN206728352U CN 206728352 U CN206728352 U CN 206728352U CN 201720620352 U CN201720620352 U CN 201720620352U CN 206728352 U CN206728352 U CN 206728352U
- Authority
- CN
- China
- Prior art keywords
- circuit
- current
- control
- power supply
- disconnecting switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 210000004899 c-terminal region Anatomy 0.000 claims abstract description 24
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 21
- 230000008859 change Effects 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Electronic Switches (AREA)
Abstract
It the utility model is related to a kind of electronic switch of micro-current control, the disconnecting switch drive circuit being connected including disconnecting switch circuit, with disconnecting switch circuit, disconnecting switch drive circuit include current-limiting circuit, mu balanced circuit, start-up circuit, ON state holding circuit, ON state power supply mu balanced circuit and control circuit；After enforced opening control terminal C access stand-by power supplies, control circuit can turn on bidirectional triode thyristor T1 by start-up circuit；When stand-by power supply powers off, start-up circuit need to be closed as control circuit receives signal, now disconnecting switch circuit is in high-impedance state, flows through the loaded work piece that the weak current on disconnecting switch circuit will not cause to be connected with the C-terminal of enforced opening end.The utility model can be widely applied to business, office corridor lighting, there is provided it is a kind of meet an urgent need it is strong open and stand-by power consumption is low, starting current is low electronic switch, solves the problems, such as that electronic switch stand-by power supply starts.
Description
Technical field
A kind of electronic switch is the utility model is related to, more particularly to a kind of electronic switch of micro-current control.
Background technology
In order to take into account hommization and energy-conservation, between building ladder or passage illumination it is widely used：Infrared induction, acousto-optic control
System, touch the electronic time-delay switch such as delay.The common feature of this kind of switch is：Meet to open during trigger condition, when continuing one section
Between after automatic close.For security against fire, this kind of electronic time-delay switch is required to be designed to：Except fire line terminal（L ends）With it is negative
Carry terminal（A ends）Outside, it is necessary to enforced opening control terminal（C-terminal）.During installation, the enforced opening control terminal of all switches
Son（C-terminal）It is connected in parallel on stand-by power supply line, usually stand-by power supply line does not connect power supply, and electronic time-delay switch can be with normal switch.When
Running into fire-fighting or other accidents needs to illuminate when ensureing, enforced opening control terminal（C-terminal）And fire line terminal（L ends）Connect
Enter same stand-by power supply, all lighting loads being closed will be forced to open, to ensure to illuminate.Electronic delay at present
Switch L ends in A end loops with commonly using controllable silicon, relay is switch element, and A ends are with commonly using thyristor in C-terminal loop
Switch element.
The C-terminal of the electronic time-delay switch of old scheme is connected in parallel on stand-by power supply line, when L ends, it is logical with A terminations when, A ends with
Voltage between C-terminal is line voltage.Product is in order to meet that product can start by force, in A when C-terminal has stand-by power supply at present
Serial regulating circuit, scr promoter circuit between end and C-terminal.Due to being influenceed by switching tube lowest drive current, the circuit
Standby current be in compared with high target.
This just determines that existing scheme has the shortcomings that inevitable：In actual use, behind L ends and logical A terminations, bear
When carrying the illuminator at A ends and lighting, be connected in parallel on low-power load on C-terminal stand-by power supply line by A ends with it is standby in C-terminal loop
Electric current influences, it may appear that the phenomenon of micro- sudden strain of a muscle.
Utility model patent：CN201210257321.0 provide it is a kind of allow between stand-by power supply line and zero line it is in parallel its
The electronic time-delay switch technology started by force of meeting an urgent need that he loads.
The technical scheme that the utility model is taken is as follows：A kind of electronic time-delay switch, including on-off circuit, drive circuit,
Delay control circuit, sensing circuit, signal deteching circuit, power supply circuit, the trigger signal input of delay control circuit is with passing
Inductive circuit is connected, and output end is sequentially connected with switch driving circuit and on-off circuit to be sent to from opening time-delay closing
Whole group control signal；Power supply circuit provides power supply for other functional circuits；The signal deteching circuit is connected to pressure and opened
Open between control terminal C and load end A, it is characterised in that：The triggering of the signal deteching circuit output end and delay control circuit
Signal input part connects.The output signal of delay control circuit collection fire-fighting signal detection circuit and sensing circuit, according to two
The situation of signal carries out break-make control to the disconnecting switch of on-off circuit.Specific control mode is as follows：Delay control circuit triggers
The signal of signal input part collection by mode control switch closing of circuit set in advance and will pass through when reaching " activation threshold value "
Disconnected automatically after delay, the triggering from signal deteching circuit is blocked during the delay control circuit controlling switch closing of circuit
Signal, when its controlling switch circuit disconnects, the output signal of fire-fighting signal detection circuit is detected in real time.
Technology does not allow before the utility model solves（C-terminal）Fire-fighting instruction in parallel, fire alarm bell etc. between zero line
The problem of fire-fighting equipment, but because it is still using monitoring, and scheme sensitivity is relatively low selected by embodiment in real time, when in C-terminal
When having a large amount of switch in parallel, it can be blocked although flowing through the electric current of each detection circuit under switch-turn-ON states, switch electricity
Under the closed mode of road, because power supply circuit still works, load end（A ends）With（C-terminal）Between voltage will flow a current through（C
End）, these electric currents, which collect, may allow load is unexpected to work, the LED load especially become increasingly popular.
Utility model patent：ZL201520236458.7 provides a kind of detection circuit of cyclical intermission detection, is opening
Pass L ends enable C-terminal signal deteching circuit and switch to cyclical intermission detection when being closed with A ends, flowed through with offsetting（C-terminal）
Electric current collect effect, while use simpler efficient signal deteching circuit, and increase signal processing circuit to being taken
The signal obtained is acted upon.
The technical scheme that the utility model is taken is as follows：Including on-off circuit, switch driving circuit, control circuit, sensing
Circuit, signal deteching circuit, power supply circuit, the trigger signal input of control circuit is connected with sensing circuit, output end is with opening
Close drive circuit and on-off circuit is sequentially connected；The on-off circuit is connected to load end A with exchanging between live wire L；The letter
The detection switch circuit that number detection circuit is controlled by a controlled circuit is connected to enforced opening control terminal C and load end A
Between, it is characterised in that：The signal deteching circuit output end is defeated by the trigger signal of signal processing circuit and control circuit
Enter end connection；Control circuit closes detection switch circuit during on-off circuit turns on, and works as the on-off circuit down periods, the cycle
Sexual refractoriness open detection on-off circuit, to detect whether enforced opening control terminal C has plant-grid connection.
Such scheme solves the problems, such as the fire-fighting equipments such as fire-fighting instruction in parallel between C-terminal and zero line, fire alarm bell, simultaneously
Observation circuit is only decreased by switching to cyclical intermission detection, the adjustment in real time in index, but between A ends and C-terminal
Standby current is it is possible to can allow the load being connected in parallel in C-terminal surprisingly to work, the LED load especially become increasingly popular.
Utility model content
To solve the above problems, provide a kind of electronic switch of micro-current control.
A kind of electronic switch of micro-current control, including disconnecting switch circuit, keep apart with what disconnecting switch circuit was connected
Close drive circuit, the disconnecting switch drive circuit includes current-limiting circuit, mu balanced circuit, start-up circuit, ON state holding circuit, opened
State power supply mu balanced circuit and control circuit, the disconnecting switch circuit are connected between load end A and enforced opening control terminal C,
During disconnecting switch circuit turn-on, the loaded work piece that is connected on the C of enforced opening end；Current-limiting circuit, mu balanced circuit, control circuit according to
Secondary connection, the input of start-up circuit are connected with control circuit, and output end is connected with ON state holding circuit and current-limiting circuit, current limliting
Circuit, mu balanced circuit, control circuit and start-up circuit, which form one, can be converted into the change of input voltage the change of output current
Loop, activated circuit output current to ON state holding circuit；The ON state holding circuit is connected with disconnecting switch circuit, institute
ON state power supply mu balanced circuit is stated to be connected with ON state holding circuit, start-up circuit, disconnecting switch circuit and control circuit respectively；
When stand-by power supply starts, current-limiting circuit is continuously mu balanced circuit injection electric charge, and voltage is increased to start-up circuit and opened
It is dynamic, ON state holding circuit conducting, so as to output current conducting disconnecting switch circuit, loaded work piece；
When loading in running order, ON state power supply mu balanced circuit is continuously the power supply of ON state holding circuit, maintains conducting
Disconnecting switch circuit；
When stand-by power supply powers off, need to close start-up circuit if control circuit receives signal, now keep apart powered-down
Road is in high-impedance state, flows through the load that the weak current on disconnecting switch circuit will not cause to be connected with the C-terminal of enforced opening end
Work.
Further, the current-limiting circuit, mu balanced circuit, control circuit are connected successively, and start-up circuit maintains electricity with ON state
Road is connected in parallel.
Further, the current-limiting circuit, mu balanced circuit, control circuit are connected successively, and start-up circuit maintains electricity with ON state
Road is connected in series.
Further, the current-limiting circuit includes resistance R10, and the mu balanced circuit includes voltage-regulator diode Z1, electric capacity C3,
Resistance R10 one end connects start-up circuit, other end connection mu balanced circuit；Voltage-regulator diode Z1 one end is grounded, other end connection electricity
Hinder R10, electric capacity C3 one end ground connection, other end connection resistance R10.
Further, the start-up circuit includes metal-oxide-semiconductor T4, metal-oxide-semiconductor T4 G poles connection control circuit, and D poles connect R10,
S poles connection ON state power supply mu balanced circuit.
Further, the ON state holding circuit includes one-way SCR T2, resistance R8, R9 and electric capacity C1, C2, electric capacity C2
One end is grounded, other end access resistance R8, and resistance R8 one end access ON state power supply mu balanced circuit, resistance R8 other ends order is to can
Silicon T2 control pole, electric capacity C1 one end ground connection are controlled, the other end connects one-way SCR T2 control pole, and resistance R9 one end is grounded, separately
One end connects one-way SCR T2 control pole, and one-way SCR T2 control pole passes through resistance R8 connections ON state power supply voltage stabilizing electricity
Road, negative electrode connection ON state power supply mu balanced circuit, anode connection disconnecting switch circuit.
Further, the ON state power supply mu balanced circuit includes triode T3, triode T3 base stage and one-way SCR
T2 control pole connection, grounded emitter, colelctor electrode are connected with one-way SCR T2 negative electrode.
Further, the disconnecting switch circuit includes bidirectional triode thyristor T1, individual event controllable silicon T1 be connected to load end A with it is strong
System is opened between control terminal C.
The electronic switch of above-mentioned micro-current control, it can be widely applied to business, office corridor lighting, there is provided one kind can meet an urgent need
It is strong to open and stand-by power consumption is low, starting current is low electronic switch, solves the problems, such as that electronic switch stand-by power supply starts.
Brief description of the drawings
Fig. 1 is the schematic diagram of the first embodiment of the electronic switch of micro-current described in the utility model control；
Fig. 2 is the first embodiment circuit theory diagrams of the electronic switch of micro-current described in the utility model control；
Fig. 3 is the schematic diagram of the second embodiment of the electronic switch of micro-current described in the utility model control；
Fig. 4 is the second embodiment circuit theory diagrams of the electronic switch of micro-current described in the utility model control；
Fig. 5 is that the circuit of the application mode of the second embodiment of the electronic switch of micro-current described in the utility model control is former
Reason figure.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The embodiment of utility model is described in detail.
Mentality of designing of the present utility model is：After stand-by power supply is accessed, disconnecting switch is led to by control circuit
Disconnected control, realizes automatic conversion between civil power and stand-by power supply；When stand-by power supply does not work, the disconnecting switch circuit is high resistant
State, this switch can be used for requiring that extremely low place uses to stand-by power consumption, starting current.
Refer to Fig. 1 and Fig. 2, in the present embodiment, the electronic switch of micro-current control include disconnecting switch circuit 1.1, with
The disconnecting switch drive circuit 1.2 that disconnecting switch circuit 1.1 connects, disconnecting switch drive circuit 1.2 include current-limiting circuit
1.2.1, mu balanced circuit 1.2.2, start-up circuit 1.2.3, ON state holding circuit 1.2.4, ON state power supply mu balanced circuit 1.2.5, control
Circuit 1.2.6 processed, disconnecting switch circuit 1.1 are connected between load end A and enforced opening control terminal C, disconnecting switch circuit 1.2
During conducting, the loaded work piece in parallel in the C-terminal of enforced opening end.
Current-limiting circuit 1.2.1, mu balanced circuit 1.2.2, control circuit 1.2.6 are sequentially connected, start-up circuit 1.2.3 input
End is connected with control circuit 1.2.6, and output end is connected with ON state holding circuit 1.2.4 and current-limiting circuit 1.2.1；ON state maintains electricity
Road 1.2.4 is connected with disconnecting switch circuit 1.1, ON state power supply mu balanced circuit 1.2.5 respectively with ON state holding circuit 1.2.4, open
Dynamic circuit 1.2.3, disconnecting switch circuit 1.1 connect with control circuit 1.2.6.Current-limiting circuit 1.2.1, mu balanced circuit 1.2.2, control
Circuit 1.2.6 and start-up circuit 1.2.3 processed form primary Ioops, and start-up circuit 1.2.3 is that can be converted into the change of input voltage
The semiconductor switch circuit of the change of output current, the activated circuit 1.2.3 in the loop output current to ON state holding circuit
1.2.4。
When stand-by power supply starts, current-limiting circuit 1.2.1 is continuously mu balanced circuit 1.2.2 injection electric charges, and voltage is increased to
Start-up circuit 1.2.3 starts, ON state holding circuit 1.2.4 conductings, so as to turn on disconnecting switch circuit 1.1, loaded work piece；When negative
When carrying in running order, ON state power supply mu balanced circuit 1.2.5 be continuously ON state holding circuit 1.2.4 power supply, maintain conducting every
From on-off circuit 1.1；When stand-by power supply powers off, disconnecting switch circuit is closed, and control circuit control start-up circuit is closed, now
Disconnecting switch circuit 1.1 is in high-impedance state, and flowing through the weak current on disconnecting switch circuit 1.1 will not cause and enforced opening end
The loaded work piece connected in C-terminal.
Referring to Fig. 2, current-limiting circuit 1.2.1 includes resistance R10, mu balanced circuit 1.2.2 includes voltage-regulator diode Z1, electric capacity
C3, resistance R10 one end connect start-up circuit 1.2.3, other end connection mu balanced circuit 1.2.2；Voltage-regulator diode Z1 one end is grounded,
The other end connects resistance R10, electric capacity C3 one end ground connection, other end connection resistance R10.
Start-up circuit 1.2.3 includes metal-oxide-semiconductor T4, metal-oxide-semiconductor T4 G poles connection control circuit 1.2.6, D poles connection R10, S poles
Connect ON state power supply mu balanced circuit 1.2.5.Start-up circuit 1.2.3 is the change that the change of input voltage can be converted into output current
The semiconductor switch circuit of change, therefore, current-limiting circuit 1.2.1 and mu balanced circuit 1.2.2 cause the voltage liter on metal-oxide-semiconductor T4
Height, voltage are increased to a timing, can turn on ON state power supply mu balanced circuit 1.2.5.
ON state holding circuit 1.2.4 includes one-way SCR T2, resistance R8, R9 and electric capacity C1, C2, electric capacity C2 mono- and terminated
Ground, other end access resistance R8, resistance R8 one end access ON state power supply mu balanced circuit 1.2.5, resistance R8 other ends order is to can
Silicon T2 control pole, electric capacity C1 one end ground connection are controlled, the other end connects one-way SCR T2 control pole, and resistance R9 one end is grounded, separately
One end connects one-way SCR T2 control pole, and one-way SCR T2 control pole passes through resistance R8 connections ON state power supply mu balanced circuit
1.2.5, negative electrode connection ON state power supply mu balanced circuit 1.2.5, anode connection disconnecting switch circuit 1.1.ON state drives holding circuit
The change of input current can be converted into the semiconductor switch circuit of the change of output current, therefore, when stand-by power supply starts
When, when loading in running order, ON state power supply mu balanced circuit 1.2.5 is continuously ON state holding circuit 1.2.4 power supplies.
ON state power supply mu balanced circuit 1.2.5 includes triode T3, triode T3 base stage and one-way SCR T2 control
Pole is connected, and grounded emitter, colelctor electrode is connected with one-way SCR T2 negative electrode.
Disconnecting switch circuit 1.1 includes bidirectional triode thyristor T1, and individual event controllable silicon T1 is connected to load end A and controlled with enforced opening
Between the C of end.When ON state holding circuit 1.2.4 is turned on, then disconnecting switch circuit 1.1 can also be turned on, and load is started working.
Refer to Fig. 3 and Fig. 4, its be second of embodiment of the utility model a kind of preferred embodiment, the present embodiment
In, the difference with the first embodiment is：The ON state holding circuit 1.2.4 and start-up circuit of the first embodiment
1.2.3 connected mode is parallel connection；The ON state holding circuit 1.2.4 and start-up circuit 1.2.3 of second of embodiment connection
Mode is series connection.
For ease of understanding, referring to Fig. 5, it is a kind of application mode of the utility model Fig. 3 and embodiment illustrated in fig. 4,
On the basis of Fig. 3 and embodiment illustrated in fig. 4, in addition to on-off circuit, process circuit and the sensing circuit being sequentially connected, processing
Circuit input end is connected with bidirectional triode thyristor T5, and output end is connected with control circuit 1.2.6, on-off circuit and bidirectional triode thyristor T5
Connection, bidirectional triode thyristor T5 are connected between zero line L and load end A.
In the case of normal power supply, bidirectional triode thyristor T5 is closed when sensing circuit is not connected to useful signal, such as now standby
With power initiation, control circuit 1.2.6 in process circuit controllable load end A and enforced opening control terminal C loops is so as to leading
Pass two-way controllable silicon T1, locking bidirectional triode thyristor T5 are closed mode, and enforced opening control terminal C power supplies, then loaded work piece, ensures
Bidirectional triode thyristor T1 and bidirectional triode thyristor T5 will not be simultaneously turned on.
When stand-by power supply is powered off or stopped power supply, sensing circuit receives effective working signal, process circuit control
Bidirectional triode thyristor T5 processed is opened, and sends a signal to control circuit, and process circuit controls bidirectional triode thyristor T1 by control circuit
Close.After the working signal that sensing circuit receives is closed, bidirectional triode thyristor T5 time-delay closings, processing circuit controls are two-way can
Control after silicon T5 is closed and be delayed a period of time, then control bidirectional triode thyristor T1 to open, ensure bidirectional triode thyristor T1 and bidirectional triode thyristor
T5 will not be simultaneously turned on.
For the electronic switch of micro-current described in the utility model control, enforced opening control terminal C is connected with stand-by power supply,
After enforced opening control terminal C access stand-by power supplies, control circuit can turn on bidirectional triode thyristor T1 by start-up circuit, simultaneously
Working signal is fed back into process circuit by control circuit, locking bidirectional triode thyristor T5 is closed mode.Powered off in stand-by power supply,
That is when zero line L connects load end A normal power supplies, process circuit sends a signal to control circuit and closes start-up circuit and then closing
Disconnecting switch circuit, then bidirectional triode thyristor T1 closings, prevent bidirectional triode thyristor T1 and T5 from simultaneously turning on, now disconnecting switch circuit
In high-impedance state, loaded work piece in parallel in the C-terminal of enforced opening end will not be caused by flowing through the weak current on disconnecting switch circuit,
It can be widely applied to business, office corridor lighting, there is provided a kind of strong open and stand-by power consumption is low, starting current is low electronics of meeting an urgent need
Switch, solves the problems, such as the startup of electronic switch stand-by power supply.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
1. a kind of electronic switch of micro-current control, including disconnecting switch circuit, the disconnecting switch that is connected with disconnecting switch circuit
Drive circuit, the disconnecting switch drive circuit include current-limiting circuit, mu balanced circuit, start-up circuit, ON state holding circuit, ON state
Power supply mu balanced circuit and control circuit, the disconnecting switch circuit are connected between load end A and enforced opening control terminal C, every
When being turned on from on-off circuit, the loaded work piece that is connected on the C of enforced opening end；Characterized in that,
Current-limiting circuit, mu balanced circuit, control circuit are sequentially connected, and the input of start-up circuit is connected with control circuit, output end
It is connected with ON state holding circuit and current-limiting circuit, current-limiting circuit, mu balanced circuit, control circuit and start-up circuit form one can will be defeated
Enter voltage change be converted into output current change loop, activated circuit output current to ON state holding circuit；It is described
ON state holding circuit is connected with disconnecting switch circuit, and the ON state power supply mu balanced circuit is electric with ON state holding circuit, startup respectively
Road, disconnecting switch circuit connect with control circuit；
When stand-by power supply starts, current-limiting circuit is continuously mu balanced circuit injection electric charge, and voltage is increased to start-up circuit startup, opened
State holding circuit turns on, so as to output current conducting disconnecting switch circuit, loaded work piece；
When loading in running order, ON state power supply mu balanced circuit is continuously the power supply of ON state holding circuit, maintains conducting isolation
On-off circuit；
When stand-by power supply powers off, start-up circuit need to be closed as control circuit receives signal, now disconnecting switch circuit is in
High-impedance state, flow through the loaded work piece that the weak current on disconnecting switch circuit will not cause to be connected with the C-terminal of enforced opening end.
2. the electronic switch of micro-current control according to claim 1, it is characterised in that the current-limiting circuit, voltage stabilizing electricity
Road, control circuit are connected successively, and start-up circuit is connected in parallel with ON state holding circuit.
3. the electronic switch of micro-current control according to claim 1, it is characterised in that the current-limiting circuit, voltage stabilizing electricity
Road, control circuit are connected successively, and start-up circuit is connected in series with ON state holding circuit.
4. the electronic switch of micro-current control according to claim 1, it is characterised in that the current-limiting circuit includes resistance
R10, the mu balanced circuit include voltage-regulator diode Z1, electric capacity C3, and resistance R10 one end connection start-up circuit, other end connection is surely
Volt circuit；Voltage-regulator diode Z1 one end is grounded, other end connection resistance R10, electric capacity C3 one end ground connection, other end connection resistance
R10。
5. the electronic switch of micro-current control according to claim 4, it is characterised in that the start-up circuit includes MOS
Pipe T4, metal-oxide-semiconductor T4 G poles connection control circuit, D poles connection resistance R10, S poles connection ON state power supply mu balanced circuit.
6. the electronic switch of micro-current control according to claim 5, it is characterised in that the ON state holding circuit includes
One-way SCR T2, resistance R8, R9 and electric capacity C1, C2, electric capacity C2 one end ground connection, other end access resistance R8, resistance R8 one end
ON state power supply mu balanced circuit is accessed, the resistance R8 other ends connect one-way SCR T2 control pole, electric capacity C1 one end ground connection, the other end
One-way SCR T2 control pole, resistance R9 one end ground connection are connect, the other end connects one-way SCR T2 control pole, one-way SCR
T2 control pole by resistance R8 connections ON state power mu balanced circuit, negative electrode connection ON state power supply mu balanced circuit, anode connection every
From on-off circuit.
7. the electronic switch of micro-current control according to claim 6, it is characterised in that the ON state power supply mu balanced circuit
Including triode T3, triode T3 base stage is connected with one-way SCR T2 control pole, grounded emitter, colelctor electrode with it is unidirectional
Controllable silicon T2 negative electrode connection.
8. the electronic switch of micro-current control according to claim 7, it is characterised in that the disconnecting switch circuit includes
Bidirectional triode thyristor T1, individual event controllable silicon T1 are connected between load end A and enforced opening control terminal C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620352.6U CN206728352U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic switch of micro-current control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720620352.6U CN206728352U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic switch of micro-current control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206728352U true CN206728352U (en) | 2017-12-08 |
Family
ID=60510995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720620352.6U Withdrawn - After Issue CN206728352U (en) | 2017-05-31 | 2017-05-31 | A kind of electronic switch of micro-current control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206728352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379893A (en) * | 2020-03-20 | 2020-07-07 | 青岛中加特电气股份有限公司 | Device for controlling electromagnetic valve |
-
2017
- 2017-05-31 CN CN201720620352.6U patent/CN206728352U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379893A (en) * | 2020-03-20 | 2020-07-07 | 青岛中加特电气股份有限公司 | Device for controlling electromagnetic valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106788363B (en) | Electronic time delay switch capable of realizing fault diagnosis | |
| CN208569338U (en) | A kind of single fire line control switch | |
| CN101789580B (en) | Fault detection and protection method of power-supply system and device for realizing same | |
| US20110301775A1 (en) | Power supply control device and ventilatiing device using same | |
| CN105321770A (en) | Alternating current contactor controller and control method | |
| CN106982503A (en) | Single fiery dual control intelligent switch of compatible mechanical switch wiring | |
| CN206294140U (en) | A kind of electronic time-delay switch of achievable fault diagnosis | |
| CN207117590U (en) | A kind of more control wall touch switch control circuits | |
| CN206728352U (en) | A kind of electronic switch of micro-current control | |
| CN202759634U (en) | LED drive circuit without auxiliary winding | |
| CN102241356A (en) | Energy saving method and device for elevator door motor | |
| CN110337162A (en) | Single live wire power getting system and method based on intelligent switch | |
| CN207368861U (en) | A kind of Switching Power Supply | |
| CN206940144U (en) | The elevator emergency for inductively detecting door lock break-make using detection declutches supply unit | |
| CN203878704U (en) | Automatic flushing device for male urinal of public toilet | |
| CN105449995B (en) | Drive control circuit and drive control method and Switching Power Supply | |
| CN106714392A (en) | Sectional switching lighting adjustment control drive circuit with LED open circuit protection | |
| CN207184901U (en) | A kind of electronic switch of automatic time delay | |
| CN203574442U (en) | Induction stand-by power supply | |
| CN107018615A (en) | A kind of electronic switch of micro-current control | |
| CN206533586U (en) | Block switch brightness adjustment control drive circuit with LED open-circuit-protections | |
| CN206923122U (en) | A kind of parameter adjustment system of sensing lamp | |
| CN204046129U (en) | A kind of refrigerator protector | |
| CN205348322U (en) | Controller is drenched to circulating dashing of men's urinal | |
| CN204206523U (en) | Indoor LED illumination light modulating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191212 Address after: No. 63 building B Hui Taiwan Industrial Zone 516000 in Guangdong province Huizhou City Zhongkai high tech Zone Patentee after: HUIZHOU QIRUI ELECTRIC Co.,Ltd. Address before: No. 63 building B Hui Taiwan Industrial Zone 516000 in Guangdong province Huizhou City Zhongkai high tech Zone Patentee before: Tian Tao |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171208 Effective date of abandoning: 20240130 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171208 Effective date of abandoning: 20240130 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |