CN106411112A - Surge overvoltage absorption circuit used for power device - Google Patents
Surge overvoltage absorption circuit used for power device Download PDFInfo
- Publication number
- CN106411112A CN106411112A CN201610890508.2A CN201610890508A CN106411112A CN 106411112 A CN106411112 A CN 106411112A CN 201610890508 A CN201610890508 A CN 201610890508A CN 106411112 A CN106411112 A CN 106411112A
- Authority
- CN
- China
- Prior art keywords
- circuit
- power device
- lightning protection
- surge
- protection circuit
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
Abstract
The invention relates to a surge overvoltage absorption circuit used for a power device. The circuit comprises a power device (1), a surge suppression circuit (2) and a lightning protection circuit (3), wherein the power device (1), the surge suppression circuit (2) and the lightning protection circuit (3) are electrically connected in sequence. The circuit has the advantages of simple structure, low cost and high reliability.
Description
Technical field
The present invention relates to a kind of be used for power device overvoltage surge absorbing circuit.
Background technology
Switching Power Supply popularizes use in a large number, and the safe handling of its equipment has become important class and carried, and present electric power network is defeated
Electric line threatens switch electricity because of the spike of various resistive, capacitives and the frequent switching industry of inductive load, overvoltage moment
The normal work in source, especially lightning surge cause a lot of damages to electronic equipment.Consequently, it is desirable to absorb sharp arteries and veins existing
Increase on the circuit of punching and limit atmospheric over voltage protection circuit.
Typical high-power electric and electronic power device buffer circuit has three kinds of forms, as shown in Figure 1.Fig. 1 (a) is single
The buffer circuit that low inductance Absorption Capacitance is constituted, it is adaptable to low power power electronic power device, can effectively suppress surge
Voltage, circuit cost is low.This circuit shortcoming is not to be suitable for loading the device for parallel resonance.The suction that Fig. 1 (b) is constituted for RCD
Receive circuit it is adaptable to the power electronic power device of relatively high power, it is electric that this circuit suppression power electronic power device turns off surge
Pressure effect is good, and power electronic power device surge voltage effect when suppression is opened is a bit weaker.This circuit shortcoming is to absorb
Diode in circuit increased stray inductance.Fig. 1 (c) is applied to powerful power electronic power device, is functionally similar to
Fig. 1 (b) absorbing circuit, but circuit inductance is less, if use cooperatively Fig. 1 (a) absorbing circuit moreover it is possible to reduce answering of diode simultaneously
Power, makes assimilation effect more preferable.The common drawback of above-mentioned three kinds of circuit is that absorption surge capacity is very low, therefore cannot effectively limit
The infringement that lightning surge processed causes to electronic equipment.
Content of the invention
Technical problem solved by the invention is to provide one kind to be used for power device overvoltage surge absorbing circuit, to solve
Certainly above-mentioned background technology shortcoming.
Technical problem solved by the invention employs the following technical solutions to realize:Including power device (1), Surge suppression
Circuit (2), lightning protection circuit (3), described power device (1), surge restraint circuit (2), lightning protection circuit (3) are electrically connected successively.
Power device (1) according to claim 1 it is characterised in that:Described power device is contacted by Q1 and Q2
Composition.
Surge restraint circuit (2) according to claim 1 it is characterised in that:Described surge restraint circuit by R1,
C1, R2, C2 series winding composition.
Lightning protection circuit (3) according to claim 1 it is characterised in that:Described lightning protection circuit by R5 and be connected to R3,
The upper and lower ends composition of R4 series winding.
One kind according to claim 11 be used for power device overvoltage surge absorbing circuit it is characterised in that:
Described surge restraint circuit (2), by series circuit R1, C1, R2, C2 upper, middle and lower end respectively with power device Q1's and Q2
Upper, middle and lower end is connected, described lightning protection circuit (3), by the upper, middle and lower end of R3, R4 divide with surge restraint circuit R1, C1, R2,
The upper, middle and lower end of C2 is respectively connected with, and the two ends of R5 are connected with the upper and lower end of R3, R4.
Described lightning protection circuit (3) it is characterised in that:Described lightning protection absorber element R3, R4, R5 are zinc oxide pressure-sensitive electricity
Resistance.
Beneficial effect is that the present invention can effectively absorb the spike overvoltage producing on electric power network transmission line of electricity,
The overvoltage that electrical network produces can be limited because of thunderbolt, this circuit has that structure is simple, low cost, reliability are high.
Brief description
Fig. 1 is the surge absorbing circuit figure to pipe for typical case's switch.
Fig. 2 is the circuit theory diagrams of the present invention.
Specific embodiment
For making technological means that the present invention realizes, creation characteristic, being easy to understand with function with reaching mesh, with reference to
It is specifically illustrating, the present invention is expanded on further.
It is shown in Figure 2,:One kind of the present invention is used for power device overvoltage surge absorbing circuit, including power device
(1), surge restraint circuit (2), lightning protection circuit (3), described power device (1), surge restraint circuit (2), lightning protection circuit (3) according to
Secondary electrical connection.
Power device (1) according to claim 1 it is characterised in that:Described power device is contacted by Q1 and Q2
Composition.
Surge restraint circuit (2) according to claim 1 it is characterised in that:Described surge restraint circuit by R1,
C1, R2, C2 series winding composition.
Lightning protection circuit (3) according to claim 1 it is characterised in that:Described lightning protection circuit by R5 and be connected to R3,
The upper and lower ends composition of R4 series winding.
One kind according to claim 11 be used for power device overvoltage surge absorbing circuit it is characterised in that:
Described surge restraint circuit (2), by series circuit R1, C1, R2, C2 upper, middle and lower end respectively with power device Q1's and Q2
Upper, middle and lower end is connected, described lightning protection circuit (3), by the upper, middle and lower end of R3, R4 divide with surge restraint circuit R1, C1, R2,
The upper, middle and lower end of C2 is respectively connected with, and the two ends of R5 are connected with the upper and lower end of R3, R4.
Ultimate principle and principal character and the advantages of the present invention of the present invention, the technology of the industry have been shown and described above
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the invention, the present invention also has various changes and modifications, and these change and change
Enter and both fall within the range of claimed invention, claimed scope is by appending claims and its equivalent circle.
Fixed.
Claims (6)
1. one kind is used for power device overvoltage surge absorbing circuit, including power device (1), surge restraint circuit (2), lightning protection
Circuit (3), described power device (1), surge restraint circuit (2), lightning protection circuit (3) are electrically connected successively.
2. power device (1) according to claim 1 it is characterised in that:Described power device is by Q1 and Q2 series winding group
Become.
3. surge restraint circuit (2) according to claim 1 it is characterised in that:Described surge restraint circuit by R1,
C1, R2, C2 series winding composition.
4. lightning protection circuit (3) according to claim 1 it is characterised in that:Described lightning protection circuit by R5 and is connected to R3, R4
The upper and lower ends composition of series winding.
5. the one kind according to claim 11 be used for power device overvoltage surge absorbing circuit it is characterised in that:Institute
The surge restraint circuit (2) stated, by series circuit R1, C1, R2, C2 upper, middle and lower end respectively with power device Q1's and Q2
Upper, middle and lower end is connected, described lightning protection circuit (3), by the upper, middle and lower end of R3, R4 divide with surge restraint circuit R1, C1, R2,
The upper, middle and lower end of C2 is respectively connected with, and the two ends of R5 are connected with the upper and lower end of R3, R4.
6. lightning protection circuit (3) according to claim 4 it is characterised in that:Described lightning protection absorber element R3, R4, R5 are oxygen
Change zinc varistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890508.2A CN106411112A (en) | 2016-10-12 | 2016-10-12 | Surge overvoltage absorption circuit used for power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890508.2A CN106411112A (en) | 2016-10-12 | 2016-10-12 | Surge overvoltage absorption circuit used for power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106411112A true CN106411112A (en) | 2017-02-15 |
Family
ID=59229211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610890508.2A Pending CN106411112A (en) | 2016-10-12 | 2016-10-12 | Surge overvoltage absorption circuit used for power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106411112A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316756Y (en) * | 1997-12-08 | 1999-04-28 | 栖霞市供电公司 | Lighting protector for AC power |
| JP4765018B2 (en) * | 2005-06-10 | 2011-09-07 | 富士電機株式会社 | Power converter |
| CN203039657U (en) * | 2013-01-14 | 2013-07-03 | 湖南大学 | IGBT buffer circuit |
| CN203387396U (en) * | 2013-07-30 | 2014-01-08 | 深圳市晶福源电子技术有限公司 | IGBT (insulated gate bipolar transistor) inverter buffer circuit capable of being applied to high-frequency conditions |
| CN203590070U (en) * | 2013-11-26 | 2014-05-07 | 上海联星电子有限公司 | IGBT buffering adsorption circuit |
| CN204030574U (en) * | 2014-06-11 | 2014-12-17 | 惠州学院 | A kind of lightning protection circuit that is applicable to switch |
-
2016
- 2016-10-12 CN CN201610890508.2A patent/CN106411112A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2316756Y (en) * | 1997-12-08 | 1999-04-28 | 栖霞市供电公司 | Lighting protector for AC power |
| JP4765018B2 (en) * | 2005-06-10 | 2011-09-07 | 富士電機株式会社 | Power converter |
| CN203039657U (en) * | 2013-01-14 | 2013-07-03 | 湖南大学 | IGBT buffer circuit |
| CN203387396U (en) * | 2013-07-30 | 2014-01-08 | 深圳市晶福源电子技术有限公司 | IGBT (insulated gate bipolar transistor) inverter buffer circuit capable of being applied to high-frequency conditions |
| CN203590070U (en) * | 2013-11-26 | 2014-05-07 | 上海联星电子有限公司 | IGBT buffering adsorption circuit |
| CN204030574U (en) * | 2014-06-11 | 2014-12-17 | 惠州学院 | A kind of lightning protection circuit that is applicable to switch |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |