CN205646933U - Large capacity electric capacity arc suppressing circuit that charges - Google Patents
Large capacity electric capacity arc suppressing circuit that charges Download PDFInfo
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- CN205646933U CN205646933U CN201620461220.9U CN201620461220U CN205646933U CN 205646933 U CN205646933 U CN 205646933U CN 201620461220 U CN201620461220 U CN 201620461220U CN 205646933 U CN205646933 U CN 205646933U
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- 239000003990 capacitor Substances 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims description 10
- 230000008033 biological extinction Effects 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 13
- 239000002699 waste material Substances 0.000 description 4
- 238000010892 electric spark Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model relates to a large capacity electric capacity arc suppressing circuit that charges, including a large capacity electric capacity and a current -limiting resistor, the contact as arc extinction circuit input end is drawn to a current -limiting resistor's one end, and the positive polarity end of large capacity electric capacity is connected to a current -limiting resistor's the other end, draws arc suppressing circuit output contact between a current -limiting resistor and large capacity capacitor anode nature end, at the parallelly connected power switch pipe in a current -limiting resistor's both ends, be connected with between the control end of power switch pipe and the output of power switch pipe and open circuit unit, be connected with steady voltage circuit unit between the control end of power switch pipe and the input of power switch pipe. A current -limiting resistor is gone into through cluster in large capacity capacitor charging circuit to this arc suppressing circuit, and it is open -minded in the timing of the power switch pipe at current -limiting resistor both ends to connect in parallel through control simultaneously, when both having eliminated battery access circuit contact department draw the arch problem, just often avoid the extravagant electric energy of a current -limiting resistor at the circuit again, circuit structure is equitable, and is succinct reliable.
Description
Technical field
This utility model relates to electronic circuit field, relates to a kind of crowbar circuit, particularly relates to electric arc electric spark when a kind of high power DC power supply accesses the DC power supply circuit that there is large bulk capacitance and eliminates circuit.
Background technology
On the equipment using dismountable storage battery (or high-power DC power supply) to power, the input of its equipment end power circuit is usually present large bulk capacitance.When the moment of accumulator access device end power circuit input interface, owing to the charging effect of large bulk capacitance can exist phenomenon of arc discharge between battery stop and power input contact, and then produce electric arc electric spark.Produced electric arc electric spark will cause loose contact in ablation contact, too increases the contact resistance between accumulator and power supply simultaneously and causes electric energy loss, causes unnecessary waste of energy to affect the service life of accumulator.
Summary of the invention
The purpose of this utility model is to provide a kind of large bulk capacitance charging crowbar circuit, in circuit by a current-limiting resistance in parallel with power switch pipe after be connected in series with large bulk capacitance again, the timing of the power switch pipe being connected in parallel on current-limiting resistance two ends by control is open-minded, both the arcing problem at contact when accumulator accesses circuit had been eliminated, the first current-limiting resistance waste electric energy is avoided again when circuit is normal, circuit structure is reasonable, the most reliably.
To achieve these goals, the technical solution adopted in the utility model is, a kind of large bulk capacitance charging crowbar circuit, including large bulk capacitance and the first current-limiting resistance, the input contact as crowbar circuit is drawn in one end of described first current-limiting resistance, the other end of the first current-limiting resistance connects the positive ends of large bulk capacitance, and the negative polarity of described large bulk capacitance terminates into reference to ground, draws the outfan contact of crowbar circuit between the first current-limiting resistance and large bulk capacitance positive ends；A power switch pipe in parallel at the two ends of described first current-limiting resistance, described power switch pipe includes controlling end, outfan and input, the outfan of described power switch pipe connects crowbar circuit outfan contact, and the input of power switch pipe connects the input contact of crowbar circuit；Power switch pipe control end and be connected the open circuit unit having for opening power switch pipe between the outfan of power switch pipe, the end and being connected between the input of power switch pipe of controlling of power switch pipe has the mu balanced circuit unit for stablizing continuous voltage for power switch pipe offer, and described open circuit unit is connected in series with mu balanced circuit unit.
As a kind of improvement of the present utility model, described open circuit unit includes the first Zener diode, the second current-limiting resistance, photoelectrical coupler, the negative pole of described first Zener diode connects the outfan of described power switch pipe, the positive pole of the first Zener diode connects the anode tap of described photoelectrical coupler, the cathode terminal of photoelectrical coupler accesses with reference to ground, the collector terminal of photoelectrical coupler connects the control end of described power switch pipe, the emitter terminal of photoelectrical coupler connects one end of described second current-limiting resistance, and the other end of the second current-limiting resistance accesses with reference to ground.
The model of described photoelectrical coupler is TLP521.
As a kind of improvement of the present utility model, described mu balanced circuit unit includes the second Zener diode, the 3rd current-limiting resistance and charging capacitor, the positive pole of described second Zener diode connects the control end of described power switch pipe, the negative pole of the second Zener diode connects the input of power switch pipe, and described 3rd current-limiting resistance and charging capacitor are all connected in the two ends of described second Zener diode in parallel.
As a kind of improvement of the present utility model, described power switch pipe uses power MOS pipe, and described control end is the grid of metal-oxide-semiconductor, and described power switch pipe outfan is the drain electrode of metal-oxide-semiconductor, and described power switch pipe input is the source electrode of metal-oxide-semiconductor.
As a kind of improvement of the present utility model, described power switch pipe uses P-channel enhancement type MOSFET pipe.
As a kind of improvement of the present utility model, the positive pole of described second Zener diode connects the collector terminal of described photoelectrical coupler.
As a kind of improvement of the present utility model, described open circuit unit being additionally provided with the 4th current-limiting resistance, one end of described 4th current-limiting resistance connects the negative pole of described first Zener diode, and the other end connects the outfan of described power switch pipe.
Relative to prior art, the crowbar circuit that this utility model is proposed is by connecting the first current-limiting resistance on large bulk capacitance, and at the first current-limiting resistance two ends parallel connection one power switch pipe, and by large bulk capacitance charging two Zener diodes of delays time to control and the work of photoelectrical coupler, and then timing closing power switch pipe, by the first current-limiting resistance short circuit, thus realize equipment end power circuit and power up the initial stage, large bulk capacitance charging current is less, does not results in generation phenomenon of arc discharge between battery stop and equipment end power circuit input contact；In addition, after large bulk capacitance has been filled with a part of electricity, power switch pipe is persistently opened the first current-limiting resistance short circuit, the supply current making accumulator is directly over power switch pipe supply arrangement end power circuit, thus it also avoid equipment end power circuit when normally working, first current-limiting resistance increases extra load to power supply, causes energy waste or affects circuit function；Whole circuit rational in infrastructure, simple and reliable.
Accompanying drawing explanation
The circuit diagram of the large bulk capacitance charging crowbar circuit that Fig. 1 is proposed by this utility model.
In figure, 1-mu balanced circuit unit, 2-open circuit unit.
Detailed description of the invention
In order to deepen understanding and cognition of the present utility model, below in conjunction with the accompanying drawings this utility model it is further described and introduce.
As it is shown in figure 1, a kind of large bulk capacitance charging crowbar circuit, the input contact Vin as crowbar circuit is drawn in the one end including large bulk capacitance C1 and the first current-limiting resistance R1, described first current-limiting resistance R1, and this contact be from accumulator power taking use.The other end of the first current-limiting resistance R1 connects the positive ends of large bulk capacitance C1, the negative polarity of described large bulk capacitance C1 terminates into reference to ground GND(i.e. storage battery negative input), between the first current-limiting resistance R1 and large bulk capacitance C1 positive ends, draw the outfan contact Vout of crowbar circuit.A power switch pipe Q1 in parallel at the two ends of described first current-limiting resistance R1, described power switch pipe Q1 includes controlling end, outfan and input, the outfan of described power switch pipe Q1 connects the input of crowbar circuit outfan contact Vout, power switch pipe Q1 and connects crowbar circuit input contact Vin.Power switch pipe Q1 controls end and is connected the open circuit unit 2 having for opening power switch pipe Q1 between power switch pipe Q1 outfan, power switch pipe Q1 controls end and is connected the mu balanced circuit unit 1 having for stablizing continuous voltage for power switch pipe Q1 offer between power switch pipe Q1 input, and described open circuit unit 2 is connected in series with mu balanced circuit unit 1.
Wherein, described open circuit unit 2 includes the first Zener diode Z1, second current-limiting resistance R2, photoelectrical coupler U1, the negative pole of described first Zener diode Z1 connects the outfan of described power switch pipe Q1, the positive pole of the first Zener diode Z1 connects the anode tap of described photoelectrical coupler U1, the cathode terminal of photoelectrical coupler U1 accesses with reference to ground GND, the collector terminal of photoelectrical coupler U1 connects the control end of described power switch pipe Q1, the emitter terminal of photoelectrical coupler U1 connects one end of described second current-limiting resistance R2, the other end of the second current-limiting resistance R2 accesses with reference to ground GND.It addition, the one end being additionally provided with the 4th current-limiting resistance R4, described 4th current-limiting resistance R4 on described open circuit unit 2 connects the negative pole of described first Zener diode Z1, the other end connects the outfan of described power switch pipe Q1.
The positive ends of described large bulk capacitance C1, the first current-limiting resistance R1, the outfan of the 4th current-limiting resistance R4 and power switch pipe Q1 are connected to (i.e. T0 node in Fig. 1) at one, draw the outfan contact Vout of crowbar circuit from T0 node.
Described mu balanced circuit unit 1 includes the second Zener diode Z2, the 3rd current-limiting resistance R3 and charging capacitor C2, the positive pole of described second Zener diode Z2 connects the control end of described power switch pipe Q1, the negative pole of the second Zener diode Z2 connects the input of power switch pipe Q1, and described 3rd current-limiting resistance R3 and charging capacitor C2 is all connected in the two ends of described second Zener diode Z2 in parallel.
The positive pole of described second Zener diode Z2 connects the collector terminal of described photoelectrical coupler U1, thus realizes being connected in series by open circuit unit 2 and mu balanced circuit unit 1.
Preferably, described power switch pipe Q1 uses P-channel enhancement type MOSFET pipe, and wherein, the end that controls of power switch pipe is the grid of metal-oxide-semiconductor, and the outfan of power switch pipe is the drain electrode of metal-oxide-semiconductor, and the input of power switch pipe is the source electrode of metal-oxide-semiconductor.
Typically, the condition that electric arc produces is that between contact, voltage is not less than 10V, by electric current not less than 80mA.Input at equipment end power circuit arranges the first current-limiting resistance R1 and connects with large bulk capacitance C1, when input powers up, power switch pipe Q1 is not closed, charged to large bulk capacitance C1 by the first current-limiting resistance R1 by the electric current after current limliting, now it is unsatisfactory for electric arc Production conditions because of electric current, therefore electric arc can not be produced between battery stop and source current outfan contact.Practicality according to supply voltage value, can adjust the value of the first current-limiting resistance R1, make the electric current flow through during charging be unsatisfactory for electric arc Production conditions.
As shown in the above, although sealing in a current-limiting resistance R1 in equipment end power circuit can eliminate electric arc, but when equipment end power circuit normally works, in equipment end power circuit, still seal in this current-limiting resistance R1, extra load will be increased to power supply, cause energy waste, even can affect the function of equipment end power circuit.
Therefore, in order to overcome the above-mentioned defect only using current-limiting resistance R1 extinguishing arc, this utility model selects power switch pipe Q1 in parallel with current-limiting resistance R1, it is equipped with for power switch pipe Q1 simultaneously and opens and the circuit unit of voltage stabilizing, via large bulk capacitance C1 charging delays time to control Zener diode and photoelectrical coupler U1 work, and then delayed start-up power switch pipe Q1, by current-limiting resistance R1 short circuit, thus realize equipment end power circuit and power up the initial stage, large bulk capacitance C1 charging current is less, do not result in arcing between battery stop and equipment end power circuit input contact, additionally after large bulk capacitance C1 has been filled with a part of electricity, power switch pipe Q1 can be by current-limiting resistance R1 short circuit, supply current is made directly to open the light pipe supply arrangement end power circuit through power, without through current-limiting resistance R1.
During use, this crowbar circuit is connected between accumulator and equipment end power circuit, after the input contact Vin of crowbar circuit powers up, power switch pipe Q1 is not closed, the first line that electric current is constituted along the first current-limiting resistance R1 is charged to large bulk capacitance C1, charging current is limited in 50mA by the first current-limiting resistance R1, it is achieved the model of the circuit components of this function and parameter see table 1 below.
Table 1 is up to each component parameters during DC42V for supply voltage:
Table 1
| Element identifier | Element title | Model |
| R1 | Resistance | 103 |
| Q1 | Metal-oxide-semiconductor | SUD50P06 |
| U1 | Optocoupler | TLP521 |
| R2 | Resistance | 203 |
| Z1 | Zener diode | ZMM20 |
| R4 | Resistance | 152 |
| Z2 | Zener diode | ZMM12 |
| R3 | Resistance | 204 |
| C2 | Electric capacity | 103 |
Although still suffering from producing the voltage difference of electric arc between battery stop and equipment end power circuit input contact, but the current condition producing electric arc is unsatisfactory for, thus produces electric arc to circuit when avoiding powering up between contact.
Carrying out along with large bulk capacitance C1 charging, after TO node voltage rises above the turning-on voltage of the first Zener diode Z1, Z1 is open-minded, photoelectrical coupler U1 starts working, photoelectrical coupler U1 input turns on, and power switch pipe Q1 gate terminal voltage reaches turning-on voltage, and power switch pipe Q1 closes unlatching, by the first current-limiting resistance R1 short circuit, accumulator is directly powered to equipment end power circuit through Q1.Other second Zener diode Z2 provides to power switch pipe Q1 gate terminal and stablizes lasting voltage, it is ensured that the normally closed of power switch pipe Q1.
It should be noted that in the claims, word first, second and third use do not indicate that any order, can be title by these word explanations.
Technological means disclosed in this utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (6)
1. a large bulk capacitance charging crowbar circuit, it is characterized in that: include large bulk capacitance and the first current-limiting resistance, the input contact as crowbar circuit is drawn in one end of described first current-limiting resistance, the other end of the first current-limiting resistance connects the positive ends of large bulk capacitance, the negative polarity of described large bulk capacitance terminates into reference to ground, draws the outfan contact of crowbar circuit between the first current-limiting resistance and large bulk capacitance positive ends；A power switch pipe in parallel at the two ends of described first current-limiting resistance, described power switch pipe includes controlling end, outfan and input, the outfan of described power switch pipe connects crowbar circuit outfan contact, and the input of power switch pipe connects crowbar circuit input contact；The end that controls of power switch pipe has open circuit unit with being connected between the outfan of power switch pipe, and the end that controls of power switch pipe has mu balanced circuit unit with being connected between the input of power switch pipe, and described open circuit unit is connected in series with mu balanced circuit unit.
2. a kind of large bulk capacitance charging crowbar circuit as claimed in claim 1, it is characterized in that, described open circuit unit includes the first Zener diode, second current-limiting resistance, photoelectrical coupler, the negative pole of described first Zener diode connects the outfan of described power switch pipe, the positive pole of the first Zener diode connects the anode tap of described photoelectrical coupler, the cathode terminal of photoelectrical coupler accesses with reference to ground, the collector terminal of photoelectrical coupler connects the control end of described power switch pipe, the emitter terminal of photoelectrical coupler connects one end of described second current-limiting resistance, the other end of the second current-limiting resistance accesses with reference to ground.
3. a kind of large bulk capacitance charging crowbar circuit as claimed in claim 1, it is characterized in that, described mu balanced circuit unit includes the second Zener diode, the 3rd current-limiting resistance and charging capacitor, the positive pole of described second Zener diode connects the control end of described power switch pipe, the negative pole of the second Zener diode connects the input of power switch pipe, and described 3rd current-limiting resistance and charging capacitor are all connected in the two ends of described second Zener diode in parallel.
4. a kind of large bulk capacitance charging crowbar circuit as claimed in claim 2, it is characterized in that, described open circuit unit is provided with the 4th current-limiting resistance, and one end of described 4th current-limiting resistance connects the negative pole of described first Zener diode, and the other end connects the outfan of described power switch pipe.
5. a kind of large bulk capacitance charging crowbar circuit as described in any one of claim 1-4, it is characterized in that, described power switch pipe uses power MOS pipe, described control end is the grid of metal-oxide-semiconductor, the input of described power switch pipe is the source electrode of metal-oxide-semiconductor, and the outfan of described power switch pipe is the drain electrode of metal-oxide-semiconductor.
6. a kind of large bulk capacitance charging crowbar circuit as claimed in claim 5, it is characterised in that described power switch pipe uses P-channel enhancement type MOSFET pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461220.9U CN205646933U (en) | 2016-05-19 | 2016-05-19 | Large capacity electric capacity arc suppressing circuit that charges |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620461220.9U CN205646933U (en) | 2016-05-19 | 2016-05-19 | Large capacity electric capacity arc suppressing circuit that charges |
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| Publication Number | Publication Date |
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| CN205646933U true CN205646933U (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620461220.9U Active CN205646933U (en) | 2016-05-19 | 2016-05-19 | Large capacity electric capacity arc suppressing circuit that charges |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581541A (en) * | 2018-06-11 | 2019-12-17 | 中国电子科技集团公司第五十二研究所 | surge current suppression circuit with isolation control |
| CN111146829A (en) * | 2018-11-06 | 2020-05-12 | 太普动力新能源(常熟)股份有限公司 | Two-stage charging battery management method |
-
2016
- 2016-05-19 CN CN201620461220.9U patent/CN205646933U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581541A (en) * | 2018-06-11 | 2019-12-17 | 中国电子科技集团公司第五十二研究所 | surge current suppression circuit with isolation control |
| CN111146829A (en) * | 2018-11-06 | 2020-05-12 | 太普动力新能源(常熟)股份有限公司 | Two-stage charging battery management method |
| CN111146829B (en) * | 2018-11-06 | 2023-11-14 | 太普动力新能源(常熟)股份有限公司 | Battery management method for two-stage charging |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An arc suppression circuit for large capacity capacitor charging Effective date of registration: 20200812 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2020980004913 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210907 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2020980004913 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A large capacity capacitor charging arc suppression circuit Effective date of registration: 20210908 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2021980009002 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220818 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2021980009002 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A large-capacity capacitor charging arc suppression circuit Effective date of registration: 20220818 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2022980013000 |
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Date of cancellation: 20230625 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2022980013000 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Large Capacity Capacitor Charging Arc Suppression Circuit Effective date of registration: 20230629 Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980046048 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20161012 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING FASTWHEEL INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2023980046048 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |