CN209014935U - A kind of switching on and shutting down sequential control circuit with interlock function - Google Patents
A kind of switching on and shutting down sequential control circuit with interlock function Download PDFInfo
- Publication number
- CN209014935U CN209014935U CN201821340984.8U CN201821340984U CN209014935U CN 209014935 U CN209014935 U CN 209014935U CN 201821340984 U CN201821340984 U CN 201821340984U CN 209014935 U CN209014935 U CN 209014935U
- Authority
- CN
- China
- Prior art keywords
- connect
- power module
- photoelectrical coupler
- input terminal
- coupler
- 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.)
- Active
Links
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model relates to a kind of switching on and shutting down sequential control circuit with interlock function, including logic power module N1, logic power module N2, first photoelectric coupler isolation circuit and the second photoelectric coupler isolation circuit, the input terminal of the first photoelectric coupler isolation circuit is connect with switch machine control signal, its output end is connect with the input terminal of logic power module N1 and control terminal, the input terminal of the second photoelectric coupler isolation circuit is connect with the output end of logic power module N1, the output end of second photoelectric coupler isolation circuit is connect with the input terminal of logic power module N2 and control terminal.Switching on and shutting down sequential control circuit described in the utility model with interlock function, circuit theory is simple, cheap, high reliablity and strong antijamming capability, can be according to practical application spread, while ensuring the isolation of each road power supply.
Description
Technical field
The utility model relates to a kind of control circuits, and in particular to a kind of switching on and shutting down timing control electricity with interlock function
Road.
Background technique
With the continuous development of science and technology, the electronic equipment of various functions continues to bring out, as power electronic equipment core
The Switching Power Supply of the heart is also faced with various functional requirements.The Switching Power Supply of military radar power supply at present is usually faced with defeated
Number is more out, output power, multiple-channel output requires to be isolated and the startup and shutdown of multiple-channel output need to meet certain sequence
Deng requirement.For the output power of power supply, the achievable output power of current Switching Power Supply can be from several watts to several kilowatts even
It is higher.And the standard brick power module of high reliability is more more and more universal in military radar power supply, and can a plurality of modules realizations
Multiple isolated outputs can realize powerful output by parallel way.In order to meet above-mentioned startup and shutdown timing
It is required that many Switching Power Supplies use programmable logic controller (PLC) part all to realize.However, military high grade requirements is programmable
For logic controller there is expensive, software reliability is low and vulnerable to problems such as interference.
Utility model content
The purpose of this utility model is to provide a kind of the switching on and shutting down sequential control circuit with interlock function, the circuit price
Cheap, high reliablity and strong antijamming capability, while ensuring the isolation of each road power supply.
To achieve the above object, the utility model uses following technical scheme:
A kind of switching on and shutting down sequential control circuit with interlock function, including logic power module N1, logic power module N2,
First photoelectric coupler isolation circuit and the second photoelectric coupler isolation circuit, the first photoelectric coupler isolation circuit it is defeated
Entering end to connect with switch machine control signal, output end is connect with the input terminal of logic power module N1 and control terminal, and described the
The input terminal of two photoelectric coupler isolation circuits is connect with the output end of logic power module N1, the second photoelectric coupler isolation electricity
The output end on road is connect with the input terminal of logic power module N2 and control terminal, passes through the first photoelectric coupler isolation circuit,
Two photoelectric coupler isolation circuit control logic power modules N1, N2 be successively successively switched on or control logic power module N2 processed,
N1 successively successively shuts down.
As a further improvement of the above technical scheme:
First logic unit module includes photoelectrical coupler U1, U2 and triode V2, the photoelectrical coupler U1's
First input end is connected to power supply through resistance R1, and the second input terminal is connect with the collector of triode V2, the triode V2
Emitter ground connection and successively connected through resistance R3, R2 and switching on and shutting down signal, the base stage of triode V2 be connected to resistance R2, R3 it
Between node at；
The first input end of the photoelectrical coupler U2 is connect through resistance R4 with the cathode output end of logic power module N2,
Its second input terminal is connect with the cathode output end of logic power module N2, the first output end and light of the photoelectrical coupler U1
The first output end of electric coupler U2 is connect with the control terminal of logic power module N1, the second output terminal of photoelectrical coupler U1
And the second output terminal of photoelectrical coupler U2 is connect with the input terminal of logic power module N1.
The second photoelectric coupler isolation circuit includes photoelectrical coupler U3, U4 and triode V5, the photoelectric coupling
The first input end of device U3 is connected to power supply through resistance R5, and the second input terminal is connect with the collector of triode V5, photoelectricity coupling
The first output end of clutch U3 is connect with the control terminal of logic power module N2, the second output terminal and logic of photoelectrical coupler U3
The input terminal of power module N2 connects, and the emitter of the triode V5 is grounded and successively through resistance R7, resistance R6 and photoelectricity coupling
The second output terminal of clutch U4 connects；
The first input end of the photoelectrical coupler U4 is connect through resistance R8 with the cathode output end of logic power module N1,
The second input terminal of photoelectrical coupler U4 is connect with the cathode output end of logic power module N1, and the first of photoelectrical coupler U4 is defeated
Outlet is connect with switch machine control signal.
First logic unit module includes the cathode and photoelectricity coupling of diode V1 and diode V3, the diode V1
The first input end of clutch U1 connects, and anode is connect with the second input terminal of photoelectrical coupler U1, the yin of the diode V3
Pole is connect with the first input end of photoelectrical coupler U2, and anode is connect with the second input terminal of photoelectrical coupler U2.
Second logic unit module includes the cathode and photoelectricity coupling of diode V4 and diode V6, the diode V4
The first input end of clutch U3 connects, and anode is connect with the second input terminal of photoelectrical coupler U3, the yin of the diode V6
Pole is connect with the first input end of photoelectrical coupler U4, and anode is connect with the second input terminal of photoelectrical coupler U4.
First logic unit module includes capacitor C1, and one end of the capacitor C1 is connect with the base stage of triode V2,
The other end of capacitor C1 is connect with the emitter of triode V2.
Second logic unit module includes capacitor C2, and one end of the capacitor C2 is connect with the base stage of triode V5,
The other end of capacitor C2 is connect with the emitter of triode V5.
As shown from the above technical solution, the switching on and shutting down sequential control circuit described in the utility model with interlock function, electricity
Road principle is simple, cheap, high reliablity and strong antijamming capability, can be according to practical application spread, while ensuring each
The isolation of road power supply.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, the switching on and shutting down sequential control circuit with interlock function of the present embodiment, including logic power module
N1, logic power module N2, the first photoelectric coupler isolation circuit and the second photoelectric coupler isolation circuit, the first photoelectric coupling
The input terminal of device isolation circuit is connect with switch machine control signal ONOFFA, the input terminal of output end and logic power module N1
And control terminal connection, the input terminal of the second photoelectric coupler isolation circuit are connect with the output end of logic power module N1, second
The output end of photoelectric coupler isolation circuit is connect with the input terminal of logic power module N2 and control terminal, passes through the first photoelectricity coupling
Clutch isolation circuit, the second photoelectric coupler isolation circuit control logic power module N1, N2 are successively successively switched on or control system
Logic power module N2, N1 is successively successively shut down.
First logic unit module includes photoelectrical coupler U1, U2 and triode V2, the first input of photoelectrical coupler U1
End is connected to power supply through resistance R1, and the second input terminal is connect with the collector of triode V2, the emitter ground connection of triode V2
And successively through resistance R3, R2 and the ONOFFA connection of switching on and shutting down signal, the base stage of triode V2 is connected to the section between resistance R2, R3
At point；The first input end of photoelectrical coupler U2 is connect through resistance R4 with the cathode output end VoB+ of logic power module N2, light
The second input terminal of electric coupler U2 is connect with the cathode output end VoB- of logic power module N2, and the first of photoelectrical coupler U1 is defeated
The first output end of outlet and photoelectrical coupler U2 are connect with the control terminal RC of logic power module N1, photoelectrical coupler U1's
Second output terminal and the second output terminal of photoelectrical coupler U2 are connect with the input terminal IN of logic power module N1.
Second photoelectric coupler isolation circuit includes photoelectrical coupler U3, U4 and triode V5, and the of photoelectrical coupler U3
One input terminal is connected to power supply through resistance R5, and the second input terminal is connect with the collector of triode V5, photoelectrical coupler U3's
First output end is connect with the control terminal RC of logic power module N2, the second output terminal and logic power mould of photoelectrical coupler U3
The emitter of the input terminal IN connection of block N2, triode V5 is grounded and successively through resistance R7, resistance R6 with photoelectrical coupler U4's
Second output terminal connection；Cathode output end of the first input end of photoelectrical coupler U4 through resistance R8 Yu logic power module N1
Second input terminal of VoA+ connection, photoelectrical coupler U4 is connect with the cathode output end VoA- of logic power module N1, photoelectricity coupling
The first output end of clutch U4 is connect with switch machine control signal ONOFFB.
First logic unit module includes diode V1, diode V3 and capacitor C1, the cathode and photoelectricity coupling of diode V1
The first input end of clutch U1 connects, and anode is connect with the second input terminal of photoelectrical coupler U1, the cathode of diode V3 and
The first input end of photoelectrical coupler U2 connects, and anode is connect with the second input terminal of photoelectrical coupler U2.The one of capacitor C1
End is connect with the base stage of triode V2, and the other end of capacitor C1 is connect with the emitter of triode V2.
Second logic unit module includes diode V4, capacitor C2 and diode V6, the cathode and photoelectricity coupling of diode V4
The first input end of clutch U3 connects, and anode is connect with the second input terminal of photoelectrical coupler U3, the cathode of diode V6 and
The first input end of photoelectrical coupler U4 connects, and anode is connect with the second input terminal of photoelectrical coupler U4.The one of capacitor C2
End is connect with the base stage of triode V5, and the other end of capacitor C2 is connect with the emitter of triode V5.Capacitor C1 and C2 are used for
Anti-interference and filter action.
The logic power module N1, logic power module N2 of the present embodiment are the negative logic power module of high reliability, when
Control pin RC is shutdown shape to (generally higher than 2.4V) power module when negative pin IN- is open circuit or high level is inputted
State is to open to (generally less than 0.8V) when negative pin IN- is short circuit or low level, power module is inputted when controlling pin RC
Machine state.Switching on and shutting down sequential control circuit with interlock function and the input of power module and output be isolated and its power supply mould
The input of block is realized by the isolation of photoelectrical coupler U1, U2, U3 and U4 with being isolated for output.12V in figure is switching on and shutting down
The auxiliary power supply of control circuit powers on i.e. automatic starting；ONOFFA and ONOFFB is respectively the switching on and shutting down of power module N1 and N2
Signal is controlled, high level booting, low level shutdown are set as；VoA and VoB is respectively the isolation output of power module N1 and N2.
According to circuit diagram it is found that under zero original state, after power supply electrifying is normal, the 12V of accessory power supply will be built
It is vertical, and the output of power module will remain that nought state is constant under not given starting-up signal.When switching on and shutting down control circuit is given
When fixed effective starting-up signal ONOFFA and ONOFFB, if power module N1 is not exported also, do not set up due to VoA so that
Photoelectrical coupler U4 is in off state, so even ONOFFB is that effective starting-up signal also can not be such that photoelectrical coupler U3 leads
It is logical, so that power module N2 cannot be started up.Therefore booting timing by according to power module N1 effective starting-up signal ONOFFA's
Under effect, triode V2 is connected, is to the greatest extent connected photoelectrical coupler U1, so that power module N1 be made to be switched on, builds output VoA
It is vertical；After VoA is established, photoelectrical coupler U4 will be connected, so that effectively starting-up signal ONOFFB will be so that triode V5 be connected, to the greatest extent
And photoelectrical coupler U3 is connected, so that power module N2 be made to be switched on, make to export VoB foundation.For timing of shutting down, according to principle
Figure makes VoB without output, at this time effective off signal only after effective off signal ONOFFB of power module N2 comes into force
ONOFFA can just turn off power module N1, make VoA without output；If power module N2 does not shut down, VoB will maintain to export, from
And make photoelectrical coupler U2 in the conductive state, so even giving effective off signal ONOFFA makes photoelectrical coupler U1
Cut-off is also impossible to so that power module N1 shutdown output, does not turn off, power module N1 as long as i.e. power module N2 is exported
It does not shut down.Summarize startup and shutdown timing are as follows: start process can only be that power module N1 is first switched on, and establish VoA first, then electric
Source module N2 could be switched on, and establish VoB；Shutdown process can only be that power module N2 first shuts down, and make VoB without output, then electric
Source module N1 could shut down, and make VoA without output.It is required to reach expected control.
The utility model has also carried out practical application verifying in actual product item, startup and shutdown timing and every
Requirement is all satisfied from equal various functions.Although for being exported for above-mentioned principle analysis and explanation using two-way, this electricity
The case where road is not restricted to two-way output, and application can be extended to multiple-channel output completely.By to the switch with interlock function
The principle analysis of machine sequential control circuit and situation is verified to the practical application of circuit, illustrates this switching on and shutting down sequential control circuit
Principle is simple, low in cost, reliable performance and can be a kind of reliable and effective switching on and shutting down timing according to practical application spread
Control circuit.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (7)
1. a kind of switching on and shutting down sequential control circuit with interlock function, it is characterised in that: including logic power module N1, logic electricity
Source module N2, the first photoelectric coupler isolation circuit and the second photoelectric coupler isolation circuit, first photoelectrical coupler every
Input terminal from circuit is connect with switch machine control signal, and the input terminal and control terminal of output end and logic power module N1 connect
It connects, the input terminal of the second photoelectric coupler isolation circuit is connect with the output end of logic power module N1, the second photoelectricity coupling
The output end of clutch isolation circuit is connect with the input terminal of logic power module N2 and control terminal, by the first photoelectrical coupler every
Logic electricity processed is successively successively switched on or controls from circuit, the second photoelectric coupler isolation circuit control logic power module N1, N2
Source module N2, N1 successively successively shut down.
2. the switching on and shutting down sequential control circuit according to claim 1 with interlock function, it is characterised in that: first light
Electric coupler isolation circuit includes the first input end warp of photoelectrical coupler U1, U2 and triode V2, the photoelectrical coupler U1
Resistance R1 is connected to power supply, and the second input terminal is connect with the collector of triode V2, the emitter ground connection of the triode V2
And successively connected through resistance R3, R2 and switching on and shutting down signal, the base stage of triode V2 is connected at the node between resistance R2, R3；
The first input end of the photoelectrical coupler U2 is connect through resistance R4 with the cathode output end of logic power module N2, the
Two input terminals are connect with the cathode output end of logic power module N2, the first output end and photoelectricity coupling of the photoelectrical coupler U1
The first output end of clutch U2 is connect with the control terminal of logic power module N1, the second output terminal and light of photoelectrical coupler U1
The second output terminal of electric coupler U2 is connect with the input terminal of logic power module N1.
3. the switching on and shutting down sequential control circuit according to claim 1 with interlock function, it is characterised in that: second light
Electric coupler isolation circuit includes the first input end warp of photoelectrical coupler U3, U4 and triode V5, the photoelectrical coupler U3
Resistance R5 is connected to power supply, and the second input terminal is connect with the collector of triode V5, the first output end of photoelectrical coupler U3
It is connect with the control terminal of logic power module N2, the second output terminal of photoelectrical coupler U3 and the input terminal of logic power module N2
Connection, the emitter ground connection of the triode V5 and the successively second output terminal through resistance R7, resistance R6 and photoelectrical coupler U4
Connection；
The first input end of the photoelectrical coupler U4 is connect through resistance R8 with the cathode output end of logic power module N1, photoelectricity
The second input terminal of coupler U4 is connect with the cathode output end of logic power module N1, the first output end of photoelectrical coupler U4
It is connect with switch machine control signal.
4. the switching on and shutting down sequential control circuit according to claim 2 with interlock function, it is characterised in that: first light
Electric coupler isolation circuit further include diode V1 and diode V3, the diode V1 cathode and photoelectrical coupler U1 the
The connection of one input terminal, anode are connect with the second input terminal of photoelectrical coupler U1, the cathode and photoelectricity coupling of the diode V3
The first input end of clutch U2 connects, and anode is connect with the second input terminal of photoelectrical coupler U2.
5. the switching on and shutting down sequential control circuit according to claim 3 with interlock function, it is characterised in that: second light
Electric coupler isolation circuit further include diode V4 and diode V6, the diode V4 cathode and photoelectrical coupler U3 the
The connection of one input terminal, anode are connect with the second input terminal of photoelectrical coupler U3, the cathode and photoelectricity coupling of the diode V6
The first input end of clutch U4 connects, and anode is connect with the second input terminal of photoelectrical coupler U4.
6. the switching on and shutting down sequential control circuit according to claim 2 with interlock function, it is characterised in that: first light
Electric coupler isolation circuit further includes capacitor C1, and one end of the capacitor C1 is connect with the base stage of triode V2, and capacitor C1's is another
One end is connect with the emitter of triode V2.
7. the switching on and shutting down sequential control circuit according to claim 3 with interlock function, it is characterised in that: second light
Electric coupler isolation circuit further includes capacitor C2, and one end of the capacitor C2 is connect with the base stage of triode V5, and capacitor C2's is another
One end is connect with the emitter of triode V5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821340984.8U CN209014935U (en) | 2018-08-20 | 2018-08-20 | A kind of switching on and shutting down sequential control circuit with interlock function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821340984.8U CN209014935U (en) | 2018-08-20 | 2018-08-20 | A kind of switching on and shutting down sequential control circuit with interlock function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209014935U true CN209014935U (en) | 2019-06-21 |
Family
ID=66831107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821340984.8U Active CN209014935U (en) | 2018-08-20 | 2018-08-20 | A kind of switching on and shutting down sequential control circuit with interlock function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209014935U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100971A (en) * | 2018-08-20 | 2018-12-28 | 合肥华耀电子工业有限公司 | A kind of switching on and shutting down sequential control circuit with interlock function |
| CN110737222A (en) * | 2019-10-23 | 2020-01-31 | 无锡市凯奥善生物医药科技有限公司 | Manual and automatic switching on and switching off circuit and method for isolation circuit systems |
| CN111983957A (en) * | 2020-09-03 | 2020-11-24 | 中国兵器工业集团第二一四研究所苏州研发中心 | Combined power supply and power-on time sequence control method thereof |
| CN114237092A (en) * | 2021-11-18 | 2022-03-25 | 北京卫星制造厂有限公司 | Level signal type on-off control circuit |
-
2018
- 2018-08-20 CN CN201821340984.8U patent/CN209014935U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100971A (en) * | 2018-08-20 | 2018-12-28 | 合肥华耀电子工业有限公司 | A kind of switching on and shutting down sequential control circuit with interlock function |
| CN109100971B (en) * | 2018-08-20 | 2024-02-09 | 合肥华耀电子工业有限公司 | On-off time sequence control circuit with interlocking function |
| CN110737222A (en) * | 2019-10-23 | 2020-01-31 | 无锡市凯奥善生物医药科技有限公司 | Manual and automatic switching on and switching off circuit and method for isolation circuit systems |
| CN110737222B (en) * | 2019-10-23 | 2022-05-24 | 无锡市凯奥善生物医药科技有限公司 | Manual and automatic switching on and switching off circuit and method of isolation circuit system |
| CN111983957A (en) * | 2020-09-03 | 2020-11-24 | 中国兵器工业集团第二一四研究所苏州研发中心 | Combined power supply and power-on time sequence control method thereof |
| CN114237092A (en) * | 2021-11-18 | 2022-03-25 | 北京卫星制造厂有限公司 | Level signal type on-off control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209014935U (en) | A kind of switching on and shutting down sequential control circuit with interlock function | |
| CN109100971A (en) | A kind of switching on and shutting down sequential control circuit with interlock function | |
| CN208188613U (en) | For reducing the power supply system and electronic equipment of power consumption | |
| CN208257783U (en) | A kind of more power supply electrifying sequential control circuits | |
| CN103532541B (en) | Light module power supply control method and system | |
| CN109243309A (en) | Display controller, display panel and display device | |
| CN111817096B (en) | Data line and charging equipment | |
| CN203587996U (en) | Multipath combined power output sequential control device | |
| CN209151038U (en) | The driver for brushless DC motor interlock circuit of anti-bridge arm direct pass | |
| CN105527520B (en) | Quick charger test macro and test method | |
| CN104635569B (en) | A kind of multimode sequential control circuit | |
| CN103425220A (en) | Electric energy control module, electric energy control device and electric energy control equipment | |
| CN106647918B (en) | electrical equipment and its control circuit | |
| CN109448621A (en) | A kind of driving circuit and display device | |
| US20180098406A1 (en) | Lighting system, power drawing device using single live wire and method for controlling the same | |
| CN215419641U (en) | Communication system | |
| CN205960623U (en) | Power protection circuit and have its circuit board | |
| CN212367594U (en) | LED drive protection circuit and lamp | |
| CN204441967U (en) | charging circuit, charging device and charging system | |
| CN204216634U (en) | A kind of inversion of uninterrupted power supply and maintenance bypass interlock circuit | |
| CN203574624U (en) | Switch control circuit | |
| CN207731100U (en) | Intelligent sequence controller | |
| CN106597897A (en) | Constant current source multi-channel control interlocking circuit | |
| CN206686066U (en) | Frequency converter digital signal input end and frequency converter | |
| CN106356963B (en) | Soft starting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |