CN105262323B - On-off control circuit - Google Patents
On-off control circuit Download PDFInfo
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- CN105262323B CN105262323B CN201510601188.XA CN201510601188A CN105262323B CN 105262323 B CN105262323 B CN 105262323B CN 201510601188 A CN201510601188 A CN 201510601188A CN 105262323 B CN105262323 B CN 105262323B
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- unit
- relay
- preliminary filling
- input terminal
- surge protection
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Abstract
The present invention discloses a kind of on-off control circuit; with electrode input end, negative input, cathode output end and cathode output end; the negative input is connected with the cathode output end, which includes security unit, surge protection unit, preliminary filling unit and filter unit；The input terminal of the security unit is connected with the electrode input end, and output terminal is connected with the input terminal of the surge protection unit；The output terminal of surge protection unit is connected with the cathode output end；The preliminary filling unit is parallel to the both ends of the surge protection unit；The filter unit is installed between the cathode output end and the cathode output end.The present invention is more stablized, while reduce production cost by the integrated of circuit when circuit carries out Anti-surging operation and filtering operation to the electric signal of input.
Description
Technical field
The present invention relates to electronic circuit technology field, and in particular to a kind of on-off control circuit.
Background technology
In hvdc circuit control, often need to carry out break-make to hvdc circuit by using on-off control circuit
Control.
Conventional solution is to use independent precharging circuit, but in major loop without Surge suppression mechanism, so to add
Upper special high-voltage DC contactor or relay carry out break-make to circuit, to avoid direct current contact in long-time caused by actuation
Phenomenon of arc discharge.As it can be seen that traditional technical solution has the shortcomings that of high cost, the core switching device service life is low, circuit is unstable.
The content of the invention
The present invention provides a kind of on-off control circuit, reduces circuit production cost, improves circuit reliability.The mesh of the present invention
Realized by following technical scheme：
A kind of on-off control circuit, has electrode input end, negative input, cathode output end and cathode output end, institute
State negative input with the cathode output end to be connected, it is characterised in that the on-off control circuit includes security unit, surge is protected
Protect unit, preliminary filling unit and filter unit；The input terminal of the security unit is connected with the electrode input end, output terminal with
The input terminal of the surge protection unit is connected；The output terminal of surge protection unit is connected with the cathode output end；It is described pre-
Fill the both ends that unit is parallel to the surge protection unit；The filter unit is installed on the cathode output end and the anode
Between output terminal.
As specific technical solution, the security unit is protective tube, and the input terminal of the protective tube and the cathode are defeated
Enter end connection, output terminal is connected with the input terminal of the surge protection unit.
As specific technical solution, the surge protection unit includes relay switch, relay coil, relay electricity
Hold and control power supply, the relay capacitance connection in control power supply cathode and anode between, the relay coil with
The relay capacitance is connected in parallel, and the relay switch is arranged at the side of the relay coil, and the relay is opened
The input terminal of pass is the input terminal of the surge protection unit, the output terminal of the relay switch and the surge protection unit
Output terminal.
As specific technical solution, the preliminary filling unit includes preliminary filling relay and preliminary filling resistance, the preliminary filling after
The input terminal of electric appliance be preliminary filling unit input terminal, the input terminal phase of the output terminal of the preliminary filling relay and the preliminary filling resistance
Even, the output terminal of the preliminary filling resistance is the output terminal of the preliminary filling unit.
As specific technical solution, the filter unit includes filter capacitor, and the input terminal of the filter capacitor is institute
The input terminal of filter unit is stated, the output terminal of the filter capacitor is the output terminal of the filter unit.
In the present invention, Anti-surging operation and filtering are carried out to the electric signal of input by the integrated of circuit, circuit
More stablize during operation, while reduce production cost.Certain frequency is carried out to relay coil by using control power supply
Energization and power operation, make relay switch carry out closed and disconnected in certain frequency, effectively absorb surge current, so that anti-
Only the capacitance on circuit is punctured by surge current, also makes each electronic component service life longer, at the same relay be attracted and
The moment of disconnection without load, so as to avoid influence during high current disjunction to relay, contactor service life.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of on-off control circuit provided in an embodiment of the present invention.
Fig. 2 is the physical circuit figure of the major part of on-off control circuit provided in an embodiment of the present invention.
Embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1 and Fig. 2, on-off control circuit provided in this embodiment, including electrode input end V1, anode input
Hold V2, cathode output end V3, cathode output end V4, security unit 10, surge protection unit 20, preliminary filling unit 30, filter unit
40 and detection unit (not showing in Fig. 2).
As shown in Fig. 2, security unit 10 and surge protection unit 20 are connected to electrode input end V1 and just in cascaded structure
Between the output terminal V3 of pole；The input terminal of security unit 10 is connected with electrode input end V1, output terminal and surge protection unit 20
Input terminal be connected, the output terminal of surge protection unit 20 is connected with cathode output end V3.
Security unit 10 is used to prevent that subsequent conditioning circuit unit is short-circuit, and protection is provided for subsequent conditioning circuit, it includes protective tube 11,
The input terminal of protective tube 11 is the input terminal of security unit 10, and the output terminal of protective tube 11 is the output of security unit 10
End.
Surge protection unit 20 is used for the surging signal that absorbing circuit produces, and ensures the relative clean of output waveform, it is wrapped
Include relay switch 21, relay coil 22, relay capacitance 23 and control power supply 24.Relay switch 21, relay line
Circle 22, relay capacitance 23 and control power supply 24 form a relay construction, and relay capacitance 23 is connected to control power supply
Between 24 cathode and anode, relay coil 22 is connected in parallel with relay capacitance 23, and relay switch 21 is arranged at relay
The side of device coil 22, relay switch 21 can be by the behaviour that control power supply 24 to be powered and power off relay coil 22
The state switching for making to complete closed and disconnected.The input terminal of relay switch 21 is the input terminal of surge protection unit 20, after
The output terminal of electric switch 21 is the output terminal of surge protection unit 20.
Preliminary filling unit 30 is connected in parallel with surge protection unit 20, output terminal phase of its input terminal equally with security unit 10
Connection, output terminal are equally connected with cathode output end V3.Preliminary filling unit 30 includes preliminary filling relay 31 and preliminary filling resistance 32,
Preliminary filling relay 31 is the input of preliminary filling unit 30 in structure, the input terminal of preliminary filling relay 31 is connected in series with preliminary filling resistance 32
End, the output terminal of preliminary filling relay 31 are connected with the input terminal of preliminary filling resistance 32, and the output terminal of preliminary filling resistance 32 is preliminary filling unit
30 output terminal.
Negative input V2 is connected with cathode output end V4, is provided between cathode output end V3 and cathode output end V4
Filter unit 40.Filter unit 40 is used for the clutter for absorbing primary input, reduces the interference of main road circuit and the electromagnetism of subsequent conditioning circuit is done
Disturb, it includes filter capacitor 41.The input terminal of filter capacitor 41 be filter unit 40 input terminal, the output terminal of filter capacitor 41
For the output terminal of filter unit 40.
As shown in Figure 1, detection unit is connected between the circuit of circuit, detection unit is protected by the state of measure loop
Hinder the douche effect of preliminary filling unit 30.
Relative to the prior art, above-described embodiment carries out wave resistance by the integrated of circuit, circuit to the electric signal of input
More stablize when gushing operation and filtering operation, while reduce production cost.By using control power supply 24 to relay line
Circle 22 carries out energization and the power operation of certain frequency, relay switch 21 is carried out closed and disconnected in certain frequency, effectively
Absorption surge current, so as to prevent the capacitance on circuit from being punctured by surge current, also make each electronic component service life more
It is long, at the same relay in the moment for being attracted and disconnecting without load, so as to avoid during high current disjunction to relay, contactor longevity
The influence of life.
Above example is only that fully disclosure is not intended to limit the present invention, every based on present invention creation purport and without creation
Property the i.e. obtainable equivalence techniques feature of work increase and decrease and replacement, the scope that the present invention is covered should be belonged to.
Claims (4)
1. a kind of on-off control circuit, has electrode input end, negative input, cathode output end and cathode output end, described
Negative input is connected with the cathode output end, which includes security unit, surge protection unit, preliminary filling list
Member and filter unit；The input terminal of the security unit is connected with the electrode input end, output terminal and the surge protection
The input terminal of unit is connected；The output terminal of surge protection unit is connected with the cathode output end；The preliminary filling unit is parallel to
The both ends of the surge protection unit；The filter unit is installed between the cathode output end and the cathode output end；
It is characterized in that, the surge protection unit includes relay switch, relay coil, relay capacitance and control power supply,
The relay capacitance connection is between the cathode and anode of control power supply, and the relay coil and the relay capacitance are simultaneously
Connection connection, the relay switch are arranged at the side of the relay coil, and the control power supply carries out relay coil
The energization of certain frequency and power operation, make relay switch carry out closed and disconnected, the relay switch in certain frequency
Input terminal be the surge protection unit input terminal, the output terminal of the relay switch is the surge protection unit
Output terminal.
2. on-off control circuit according to claim 1, it is characterised in that the security unit is protective tube, the insurance
The input terminal of pipe is connected with the electrode input end, and output terminal is connected with the input terminal of the surge protection unit.
3. on-off control circuit according to claim 1 or 2, it is characterised in that the preliminary filling unit includes preliminary filling relay
Device and preliminary filling resistance, the input terminal of the preliminary filling relay are the input terminal of preliminary filling unit, the output of the preliminary filling relay
End is connected with the input terminal of the preliminary filling resistance, and the output terminal of the preliminary filling resistance is the output terminal of the preliminary filling unit.
4. on-off control circuit according to claim 1, it is characterised in that the filter unit includes filter capacitor, institute
The input terminal for stating filter capacitor is the input terminal of the filter unit, and the output terminal of the filter capacitor is the filter unit
Output terminal.
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 CN105262323A (en) | 2016-01-20 |
| CN105262323B true CN105262323B (en) | 2018-05-08 |
Family
ID=55101872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510601188.XA Active CN105262323B (en) | 2015-09-21 | 2015-09-21 | On-off control circuit |
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| Country | Link |
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| CN (1) | CN105262323B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112016006844T5 (en) * | 2016-05-12 | 2019-02-14 | Robert Bosch Gmbh | Battery disconnect circuits and method for controlling a battery disconnect circuit |
| US10361578B2 (en) * | 2017-05-10 | 2019-07-23 | Analog Devices, Inc. | Techniques for controlling current during power up in hot swap controllers |
| CN110048373A (en) * | 2019-03-01 | 2019-07-23 | 华为技术有限公司 | A kind of break-up device and inverter system |
| CN111865127B (en) * | 2019-04-29 | 2023-01-31 | 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 |
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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105262323A (en) | 2016-01-20 |
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