CN105262323A - On-off control circuit - Google Patents
On-off control circuit Download PDFInfo
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- CN105262323A CN105262323A CN201510601188.XA CN201510601188A CN105262323A CN 105262323 A CN105262323 A CN 105262323A CN 201510601188 A CN201510601188 A CN 201510601188A CN 105262323 A CN105262323 A CN 105262323A
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Abstract
The invention discloses an on-off control circuit provided with a positive input end, a negative input end, a positive output end and a negative output end, wherein the negative input end is connected with the negative output end. The on-off control circuit comprises a fuse unit, a surge protection unit, a pre-charging unit and a filtering unit, wherein the input end of the fuse unit is connected with the positive input end, the output end of the fuse unit is connected with the input end of the surge protection unit, the output end of the surge protection unit is connected with the positive output end, the pre-charging unit is connected in series with the two ends of the surge protection unit, and the filtering unit is arranged between the positive output end and the negative output end. Through integration of the circuit, the circuit is more stable to carry out surge prevention operation and filtering operation on an input electric signal, and meanwhile, the production cost is reduced.
Description
Technical field
The present invention relates to electronic circuit technology field, be specifically related to a kind of on-off control circuit.
Background technology
In hvdc circuit controls, normal needs carries out break-make control by use on-off control circuit to hvdc circuit.
Conventional solution for adopting independently precharging circuit, but at major loop without Surge suppression mechanism, so will add that special high-voltage DC contactor or relay carry out break-make to circuit, avoids the long phenomenon of arc discharge that direct current contact produces when adhesive.Visible, traditional technical scheme has the shortcomings such as cost is high, the core switching device life-span is low, circuit is unstable.
Summary of the invention
The invention provides a kind of on-off control circuit, reduce circuit production cost, improve circuit reliability.Object of the present invention is realized by following technical scheme:
A kind of on-off control circuit, there is electrode input end, negative input, cathode output end and cathode output end, described negative input is connected with described cathode output end, it is characterized in that, this on-off control circuit comprises security unit, surge protection unit, preliminary filling unit and filter unit; The input of described security unit is connected with described electrode input end, and output is connected with the input of described surge protection unit; The output of surge protection unit is connected with described cathode output end; Described preliminary filling unit is parallel to the two ends of described surge protection unit; Described filter unit is installed between described cathode output end and described cathode output end.
As concrete technical scheme, described security unit is protective tube, and the input of this protective tube is connected with described electrode input end, and output is connected with the input of described surge protection unit.
As concrete technical scheme; described surge protection unit comprises relay switch, relay coil, relay electric capacity and controls power supply; between the positive pole that described relay electric capacity is connected to control power supply and negative pole; described relay coil is connected with described relay Capacitance parallel connection; described relay switch is arranged at one end of described relay coil; the input of described relay switch is the input of described surge protection unit, the output of described relay switch and the output of described surge protection unit.
As concrete technical scheme, described preliminary filling unit comprises preliminary filling relay and preliminary filling resistance, the input of described preliminary filling relay is the input of preliminary filling unit, the output of described preliminary filling relay is connected with the input of described preliminary filling resistance, and the output of described preliminary filling resistance is the output of described preliminary filling unit.
As concrete technical scheme, described filter unit comprises filter capacitor, and the input of described filter capacitor is the input of described filter unit, and the output of described filter capacitor is the output of described filter unit.
In the present invention, integrated by circuit, more stable when the signal of telecommunication of circuit to input carries out Anti-surging operation and filtering operation, reduce production cost simultaneously.By use control power supply, relay coil is carried out to energising and the power operation of certain frequency, relay switch is made to be that certain frequency carries out closed and disconnected, effective absorption surge current, thus prevent the electric capacity on circuit from being punctured by surge current, also each electronic component longer service life is made, simultaneously relay is not with in the moment of adhesive and disconnection and is carried, thus on relay, the impact in contactor life-span when avoiding big current disjunction.
Accompanying drawing explanation
The electrical schematic diagram of the on-off control circuit that Fig. 1 provides for the embodiment of the present invention.
The physical circuit figure of the major part of the on-off control circuit that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail.
Shown in Fig. 1 and Fig. 2; the on-off control circuit that the present embodiment provides, comprises electrode input end V1, negative input V2, cathode output end V3, cathode output end V4, security unit 10, surge protection unit 20, preliminary filling unit 30, filter unit 40 and detecting unit (not showing in Fig. 2).
As shown in Figure 2, security unit 10 and surge protection unit 20 are connected between electrode input end V1 and cathode output end V3 in cascaded structure; The input of security unit 10 is connected with electrode input end V1, and output is connected with the input of surge protection unit 20, and the output of surge protection unit 20 is connected with cathode output end V3.
Security unit 10 is for preventing the short circuit of subsequent conditioning circuit unit, and for subsequent conditioning circuit provides protection, it comprises protective tube 11, and the input of protective tube 11 is the input of security unit 10, and the output of protective tube 11 is the output of security unit 10.
The surging signal that surge protection unit 20 produces for absorbing circuit, ensures the relative clean of output waveform, and it comprises relay switch 21, relay coil 22, relay electric capacity 23 and controls power supply 24.Relay switch 21, relay coil 22, relay electric capacity 23 and control power supply 24 form a relay construction, between the positive pole that relay electric capacity 23 is connected to control power supply 24 and negative pole, relay coil 22 and relay electric capacity 23 are connected in parallel, relay switch 21 is arranged at one end of relay coil 22, and relay switch 21 can be switched by the state controlling power supply 24 pairs of relay coils 22 and be energized and the operation of power-off completes closed and disconnected.The input of relay switch 21 is the input of surge protection unit 20, the output of relay switch 21 and the output of surge protection unit 20.
Preliminary filling unit 30 and surge protection unit 20 are connected in parallel, and its input is connected with the output of security unit 10 equally, and output is connected with cathode output end V3 equally.Preliminary filling unit 30 comprises preliminary filling relay 31 and preliminary filling resistance 32, preliminary filling relay 31 and preliminary filling resistance 32 are in connect in series structure, the input of preliminary filling relay 31 is the input of preliminary filling unit 30, the output of preliminary filling relay 31 is connected with the input of preliminary filling resistance 32, and the output of preliminary filling resistance 32 is the output of preliminary filling unit 30.
Negative input V2 is connected with cathode output end V4, is provided with filter unit 40 between cathode output end V3 and cathode output end V4.Filter unit 40 is for absorbing the clutter of primary input, and reduce the electromagnetic interference of main road circuit interference to subsequent conditioning circuit, it comprises filter capacitor 41.The input of filter capacitor 41 is the input of filter unit 40, and the output of filter capacitor 41 is the output of filter unit 40.
As shown in Figure 1, detecting unit is connected between the loop of circuit, and detecting unit, by the state of measure loop, ensures the douche effect of preliminary filling unit 30.
Relative to prior art, integrated by circuit of above-described embodiment, more stable when the signal of telecommunication of circuit to input carries out Anti-surging operation and filtering operation, reduce production cost simultaneously.Energising and the power operation that power supply 24 pairs of relay coils 22 carry out certain frequency is controlled by using, relay switch 21 is made to carry out closed and disconnected in certain frequency, effective absorption surge current, thus prevent the electric capacity on circuit from being punctured by surge current, also each electronic component longer service life is made, simultaneously relay is not with in the moment of adhesive and disconnection and is carried, thus on relay, the impact in contactor life-span when avoiding big current disjunction.
Above embodiment is only fully open and unrestricted the present invention, everyly creates purport based on the present invention and without the need to the increase and decrease of creative work and obtainable equivalence techniques feature and replacement, should belong to the scope that the present invention is contained.
Claims (5)
1. an on-off control circuit, there is electrode input end, negative input, cathode output end and cathode output end, described negative input is connected with described cathode output end, it is characterized in that, this on-off control circuit comprises security unit, surge protection unit, preliminary filling unit and filter unit; The input of described security unit is connected with described electrode input end, and output is connected with the input of described surge protection unit; The output of surge protection unit is connected with described cathode output end; Described preliminary filling unit is parallel to the two ends of described surge protection unit; Described filter unit is installed between described cathode output end and described cathode output end.
2. on-off control circuit according to claim 1, is characterized in that, described security unit is protective tube, and the input of this protective tube is connected with described electrode input end, and output is connected with the input of described surge protection unit.
3. on-off control circuit according to claim 1; it is characterized in that; described surge protection unit comprises relay switch, relay coil, relay electric capacity and controls power supply; between the positive pole that described relay electric capacity is connected to control power supply and negative pole; described relay coil is connected with described relay Capacitance parallel connection; described relay switch is arranged at one end of described relay coil; the input of described relay switch is the input of described surge protection unit, the output of described relay switch and the output of described surge protection unit.
4. the on-off control circuit according to claim 1 or 3, it is characterized in that, described preliminary filling unit comprises preliminary filling relay and preliminary filling resistance, the input of described preliminary filling relay is the input of preliminary filling unit, the output of described preliminary filling relay is connected with the input of described preliminary filling resistance, and the output of described preliminary filling resistance is the output of described preliminary filling unit.
5. on-off control circuit according to claim 1, is characterized in that, described filter unit comprises filter capacitor, and the input of described filter capacitor is the input of described filter unit, and the output of described filter capacitor is the output of described filter unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601188.XA CN105262323B (en) | 2015-09-21 | 2015-09-21 | On-off control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601188.XA CN105262323B (en) | 2015-09-21 | 2015-09-21 | On-off control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105262323A true CN105262323A (en) | 2016-01-20 |
| CN105262323B CN105262323B (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510601188.XA Active CN105262323B (en) | 2015-09-21 | 2015-09-21 | On-off control circuit |
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| CN (1) | CN105262323B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880205A (en) * | 2017-05-10 | 2018-11-23 | 美国亚德诺半导体公司 | System and method for controlling electric current during energization |
| CN109075581A (en) * | 2016-05-12 | 2018-12-21 | 罗伯特·博世有限公司 | Battery disconnection circuit and method for controlling battery disconnection circuit |
| CN110364993A (en) * | 2019-03-01 | 2019-10-22 | 华为技术有限公司 | A kind of break-up device and inverter system |
| CN111865127A (en) * | 2019-04-29 | 2020-10-30 | 株洲中车时代电气股份有限公司 | Water surface power supply for underwater remote control robot and underwater remote control robot |
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| EP0748035A1 (en) * | 1995-06-08 | 1996-12-11 | STMicroelectronics S.A. | A circuit and method for controlling an inrush current limiter in a power conversion system that includes power factor correction |
| CN101888179A (en) * | 2010-06-21 | 2010-11-17 | 三一重机有限公司 | DC/DC control and drive circuit of hybrid power excavator |
| CN102611337A (en) * | 2011-01-20 | 2012-07-25 | 鸿富锦精密工业（深圳）有限公司 | Power supply circuit |
| CN205123559U (en) * | 2015-09-21 | 2016-03-30 | 深圳市科泰新能源车用空调技术有限公司 | On -off control circuit |
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2015
- 2015-09-21 CN CN201510601188.XA patent/CN105262323B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0748035A1 (en) * | 1995-06-08 | 1996-12-11 | STMicroelectronics S.A. | A circuit and method for controlling an inrush current limiter in a power conversion system that includes power factor correction |
| CN101888179A (en) * | 2010-06-21 | 2010-11-17 | 三一重机有限公司 | DC/DC control and drive circuit of hybrid power excavator |
| CN102611337A (en) * | 2011-01-20 | 2012-07-25 | 鸿富锦精密工业（深圳）有限公司 | Power supply circuit |
| CN205123559U (en) * | 2015-09-21 | 2016-03-30 | 深圳市科泰新能源车用空调技术有限公司 | On -off control circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075581A (en) * | 2016-05-12 | 2018-12-21 | 罗伯特·博世有限公司 | Battery disconnection circuit and method for controlling battery disconnection circuit |
| CN108880205A (en) * | 2017-05-10 | 2018-11-23 | 美国亚德诺半导体公司 | System and method for controlling electric current during energization |
| CN110364993A (en) * | 2019-03-01 | 2019-10-22 | 华为技术有限公司 | A kind of break-up device and inverter system |
| WO2020177650A1 (en) * | 2019-03-01 | 2020-09-10 | 华为技术有限公司 | Breaker device and inverter system |
| CN111865127A (en) * | 2019-04-29 | 2020-10-30 | 株洲中车时代电气股份有限公司 | Water surface power supply for underwater remote control robot and underwater remote control robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105262323B (en) | 2018-05-08 |
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