CN103475200A - Anti-surge circuit - Google Patents
Anti-surge circuit Download PDFInfo
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- CN103475200A CN103475200A CN2013103785184A CN201310378518A CN103475200A CN 103475200 A CN103475200 A CN 103475200A CN 2013103785184 A CN2013103785184 A CN 2013103785184A CN 201310378518 A CN201310378518 A CN 201310378518A CN 103475200 A CN103475200 A CN 103475200A
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Abstract
The invention relates to an anti-surge circuit which comprises a voltage input end, a voltage output end, a resistor r1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a capacitor C1, a capacitor C2, a capacitor C3, a voltage stabilizing tube ZD1, a voltage stabilizing tube ZD2, a triode Q1, a field effect tube Q2 and a thermal resistor RT1. The anti-surge circuit disclosed by the invention has the advantages of small size, high output power and good inhibition effect on direct current transient spike voltage and voltage surge.
Description
Technical field
The present invention relates to anti-surge circuit.
Background technology
The AC/DC power supply changeover device has that volume is little, lightweight, the conversion efficiency advantages of higher, and is widely used from industry to civilian every field.The DC/DC transducer that simultaneously fixing direct voltage is converted to variable direct voltage also has been widely used in each technical field.Nowadays AC/DC transducer and DC/DC transducer have become one of circuit indispensable in power consumption equipment; so in the use procedure of AC/DC, DC/DC transducer; the function that suppresses surge, antisurge is even more important; be convenient to like this protect reliability and the stability of product; yet; all there is problem in various degree in the most anti-surge circuit, as: Heavy Weight, volume is large, power output is low, circuit integration is difficult, inhibition is poor, stability is not good etc.
Summary of the invention
The object of the invention is to propose a kind of anti-surge circuit, the problem such as it can solve Heavy Weight, volume is large, power output is low, circuit integration is difficult, inhibition is poor and stability is not good.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of anti-surge circuit, it comprises voltage input end, voltage output end, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, voltage-stabiliser tube ZD1, voltage-stabiliser tube ZD2, triode Q1, field effect transistor Q2 and thermistor RT1; One end of one end of resistance R 1, an end of resistance R 3 and capacitor C 2 all is connected with the positive pole of voltage input end; The grid of one end of one end of the negative electrode of voltage-stabiliser tube ZD1, resistance R 2, the other end of resistance R 3, capacitor C 1, the collector electrode of triode Q1 and field effect transistor Q2 all is connected with the other end of resistance R 1; The emitter of the other end of the other end of the anode of the negative pole of voltage input end, voltage-stabiliser tube ZD1, resistance R 2, capacitor C 1 and triode Q1 all is connected with the source electrode of field effect transistor Q2; One end of the anode of voltage-stabiliser tube ZD2 and resistance R 4 all is connected with the collector electrode of triode Q1; The negative electrode of voltage-stabiliser tube ZD2 is by resistance R 5 ground connection; The other end of resistance R 4 is connected with the source electrode of field effect transistor Q2; The equal ground connection of the other end of the drain electrode of field effect transistor Q2 and capacitor C 2; The end of thermistor RT1 is connected with the source electrode of field effect transistor Q2, and the other end of thermistor RT1 is connected with the drain electrode of field effect transistor Q2, and capacitor C 3 is in parallel with thermistor RT1; One end of capacitor C 2 is as the positive pole of voltage output end, and the other end of capacitor C 2 is as the negative pole of voltage output end.
Optionally, described triode Q1 is NPN type triode.
Optionally, described field effect transistor Q2 is N channel-type field effect transistor.
Optionally, described thermistor RT1 is negative tempperature coefficient thermistor.
The present invention has following beneficial effect:
Volume is little, power output is large, and at DC transient peak voltage and voltage surge, suppress effective, the multiple in esse problem such as can overcome the existing existing Heavy Weight of anti-surge circuit, volume is large, circuit integration is difficult, inhibition is not good.
The accompanying drawing explanation
The structural representation of the anti-surge circuit that Fig. 1 is preferred embodiment of the present invention.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further.
As shown in Figure 1, a kind of anti-surge circuit, it comprises voltage input end V1, voltage output end V0, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, voltage-stabiliser tube ZD1, voltage-stabiliser tube ZD2, triode Q1, field effect transistor Q2 and thermistor RT1.
One end of one end of resistance R 1, an end of resistance R 3 and capacitor C 2 all with the positive pole of voltage input end V1+be connected; The grid of one end of one end of the negative electrode of voltage-stabiliser tube ZD1, resistance R 2, the other end of resistance R 3, capacitor C 1, the collector electrode of triode Q1 and field effect transistor Q2 all is connected with the other end of resistance R 1; The negative pole of voltage input end V1-, the anode of voltage-stabiliser tube ZD1, the other end of resistance R 2, the other end of capacitor C 1 and the emitter of triode Q1 all be connected with the source electrode of field effect transistor Q2; One end of the anode of voltage-stabiliser tube ZD2 and resistance R 4 all is connected with the collector electrode of triode Q1; The negative electrode of voltage-stabiliser tube ZD2 is by resistance R 5 ground connection; The other end of resistance R 4 is connected with the source electrode of field effect transistor Q2; The equal ground connection of the other end of the drain electrode of field effect transistor Q2 and capacitor C 2; The end of thermistor RT1 is connected with the source electrode of field effect transistor Q2, and the other end of thermistor RT1 is connected with the drain electrode of field effect transistor Q2, and capacitor C 3 is in parallel with thermistor RT1; One end of capacitor C 2 as the positive pole of voltage output end V0+, the other end of capacitor C 2 as the negative pole of voltage output end V0-.
In the present embodiment, triode Q1 adopts NPN type triode, and field effect transistor Q2 adopts N channel-type field effect transistor, and thermistor RT1 adopts negative tempperature coefficient thermistor.
The operation principle of the present embodiment is as follows:
The moment of opening at the voltage of voltage input end V1, due to capacitor C 1 in charged state, so not conducting of triode Q2, electric current forms loop through thermistor RT1, voltage on capacitor C 1 is filled to the voltage stabilizing value of voltage-stabiliser tube ZD1, at this moment field effect transistor Q2 starts conducting, if capacitor C 2 occurs that short circuit phenomenon appears in electric leakage or circuit rear class, the pressure drop moment produced on thermistor RT1 at electric leakage or the immediate current of short circuit so increases, triode Q1 starts that conducting drags down field effect transistor Q2 grid voltage until field effect transistor Q2 turn-offs, thermistor RT1 moment opens a way, thereby the circuit of protection rear class.
According to the circuit of different capacity section, the parameter configured is adjustable, the increased power that field effect transistor Q2, thermistor RT1, voltage-stabiliser tube ZD1 configure along with circuit and strengthen its parameter.
The present embodiment has following advantage:
1. circuit design is reasonable and with low cost;
2. volume is little, lightweight;
3. easy-to-connect and integrated convenience, result of use is good, and parameter is adjustable;
4. dependable performance, each index is good, and power output is changeable, and DC transient peak voltage and voltage surge inhibition are good.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and the distortion all should belong to the protection range of the claims in the present invention within.
Claims (4)
1. an anti-surge circuit, it is characterized in that, comprise voltage input end, voltage output end, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, capacitor C 1, capacitor C 2, capacitor C 3, voltage-stabiliser tube ZD1, voltage-stabiliser tube ZD2, triode Q1, field effect transistor Q2 and thermistor RT1; One end of one end of resistance R 1, an end of resistance R 3 and capacitor C 2 all is connected with the positive pole of voltage input end; The grid of one end of one end of the negative electrode of voltage-stabiliser tube ZD1, resistance R 2, the other end of resistance R 3, capacitor C 1, the collector electrode of triode Q1 and field effect transistor Q2 all is connected with the other end of resistance R 1; The emitter of the other end of the other end of the anode of the negative pole of voltage input end, voltage-stabiliser tube ZD1, resistance R 2, capacitor C 1 and triode Q1 all is connected with the source electrode of field effect transistor Q2; One end of the anode of voltage-stabiliser tube ZD2 and resistance R 4 all is connected with the collector electrode of triode Q1; The negative electrode of voltage-stabiliser tube ZD2 is by resistance R 5 ground connection; The other end of resistance R 4 is connected with the source electrode of field effect transistor Q2; The equal ground connection of the other end of the drain electrode of field effect transistor Q2 and capacitor C 2; The end of thermistor RT1 is connected with the source electrode of field effect transistor Q2, and the other end of thermistor RT1 is connected with the drain electrode of field effect transistor Q2, and capacitor C 3 is in parallel with thermistor RT1; One end of capacitor C 2 is as the positive pole of voltage output end, and the other end of capacitor C 2 is as the negative pole of voltage output end.
2. anti-surge circuit as claimed in claim 1, is characterized in that, described triode Q1 is NPN type triode.
3. anti-surge circuit as claimed in claim 1, is characterized in that, described field effect transistor Q2 is N channel-type field effect transistor.
4. anti-surge circuit as claimed in claim 1, is characterized in that, described thermistor RT1 is negative tempperature coefficient thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103785184A CN103475200A (en) | 2013-08-27 | 2013-08-27 | Anti-surge circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103785184A CN103475200A (en) | 2013-08-27 | 2013-08-27 | Anti-surge circuit |
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| CN103475200A true CN103475200A (en) | 2013-12-25 |
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| CN2013103785184A Pending CN103475200A (en) | 2013-08-27 | 2013-08-27 | Anti-surge circuit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701313A (en) * | 2013-12-31 | 2014-04-02 | 宁波市子华电器有限公司 | Damping current-limiting circuit used in DC (direct current)-DC converter |
| CN105871188A (en) * | 2016-05-18 | 2016-08-17 | 青岛海信移动通信技术股份有限公司 | Surge protection circuit and mobile terminal |
| CN106153078A (en) * | 2016-08-22 | 2016-11-23 | 成都众山科技有限公司 | A kind of telemetry terminal system with electrostatic defending |
| CN109510449A (en) * | 2018-11-19 | 2019-03-22 | 天津津航计算技术研究所 | A kind of inrush current suppression circuit |
| CN111555599A (en) * | 2020-04-29 | 2020-08-18 | 中国电子科技集团公司第二十九研究所 | Power-on surge current suppression circuit and method of capacitor |
| CN112202155A (en) * | 2020-10-19 | 2021-01-08 | 天津津航计算技术研究所 | Input voltage surge suppression circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018407Y (en) * | 2007-02-02 | 2008-02-06 | 深圳晶辰电子科技股份有限公司 | Surge-suppressing circuit |
| CN201282332Y (en) * | 2008-08-06 | 2009-07-29 | 深圳市东辰科技有限公司 | Surge-proof circuit |
| CN203398985U (en) * | 2013-08-27 | 2014-01-15 | 崧顺电子（深圳）有限公司 | Anti-surge circuit |
-
2013
- 2013-08-27 CN CN2013103785184A patent/CN103475200A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018407Y (en) * | 2007-02-02 | 2008-02-06 | 深圳晶辰电子科技股份有限公司 | Surge-suppressing circuit |
| CN201282332Y (en) * | 2008-08-06 | 2009-07-29 | 深圳市东辰科技有限公司 | Surge-proof circuit |
| CN203398985U (en) * | 2013-08-27 | 2014-01-15 | 崧顺电子（深圳）有限公司 | Anti-surge circuit |
Non-Patent Citations (1)
| Title |
|---|
| 1155050: "《世纪电源网-电源论坛-综合技术讨论区》《http://bbs.21dianyuan.com/52569.html》", 10 November 2011, article "抗浪涌电路分析" * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701313A (en) * | 2013-12-31 | 2014-04-02 | 宁波市子华电器有限公司 | Damping current-limiting circuit used in DC (direct current)-DC converter |
| CN103701313B (en) * | 2013-12-31 | 2015-10-28 | 宁波市子华电器有限公司 | A kind of damping current-limiting circuit for DC-DC direct current transducer |
| CN105871188A (en) * | 2016-05-18 | 2016-08-17 | 青岛海信移动通信技术股份有限公司 | Surge protection circuit and mobile terminal |
| CN106153078A (en) * | 2016-08-22 | 2016-11-23 | 成都众山科技有限公司 | A kind of telemetry terminal system with electrostatic defending |
| CN109510449A (en) * | 2018-11-19 | 2019-03-22 | 天津津航计算技术研究所 | A kind of inrush current suppression circuit |
| CN111555599A (en) * | 2020-04-29 | 2020-08-18 | 中国电子科技集团公司第二十九研究所 | Power-on surge current suppression circuit and method of capacitor |
| CN112202155A (en) * | 2020-10-19 | 2021-01-08 | 天津津航计算技术研究所 | Input voltage surge suppression circuit |
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Application publication date: 20131225 |