CN201523230U - Two-phase electric power supply lightning protection device - Google Patents
Two-phase electric power supply lightning protection device Download PDFInfo
- Publication number
- CN201523230U CN201523230U CN2009202816841U CN200920281684U CN201523230U CN 201523230 U CN201523230 U CN 201523230U CN 2009202816841 U CN2009202816841 U CN 2009202816841U CN 200920281684 U CN200920281684 U CN 200920281684U CN 201523230 U CN201523230 U CN 201523230U
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- power supply
- circuit
- overvoltage
- lightning protection
- protection
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- 230000001681 protective effect Effects 0.000 claims description 15
- 101100283471 Schizosaccharomyces pombe (strain 972 / ATCC 24843) gnr1 gene Proteins 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
The utility model provides a two-phase electric power supply lightning protection device, belonging to the technical field of power supply lightning protection. The circuit of the device comprises an anti-interference power supply input circuit, an overvoltage differential mode protection circuit, an overvoltage common mode protection circuit, an overvoltage discharge protection circuit and a protection power supply output circuit. Compared with the prior art, the two-phase electric power supply lightning protection device has the characteristics of reasonable design, simple structure, safe lightning protection and the like, can realize fast response and protection of the two-phase power supply equipment, and has high practical value in the field of small and medium power electronic products.
Description
Technical field
The utility model relates to apparatus for protecting power supply, a kind of specifically two-phase power supply lightning protection device.
Background technology
Power lightning protection is to prevent that thunder and lightning and other internal overvoltage intrusion equipment from causing damage, from the integrated lightning protection scheme that outdoor lightning protection combines with line thunder protection, has introduced outside lightning-arrest and notion such as take shelter from the thunder in inside, protection zone, lightning protection equipotential are connected.Analyzed the power lightning protection operation principle.Adopt power lightning protection can in the shortest time, discharge a large amount of pulse energy short circuits that produce because of lightning induction on the circuit the earth of releasing, the potential difference between each interface of reduction equipment, thereby the equipment on the protective circuit.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of two-phase power supply lightning protection device is provided.
The technical solution of the utility model realizes in the following manner; this a kind of two-phase power supply lightning protection device, the circuit of this device successively comprise anti-jamming power-supply input circuit, overvoltage differential mode protective circuit, overvoltage common mode protective circuit, overvoltage discharge protection circuit and protection power output circuit.
Be parallel with resistance R and capacitor C between the phase line L of power supply input circuit and zero line N, overvoltage differential mode protective circuit is made up of the piezo-resistance GNR1 that is connected phase line L and zero line N; Overvoltage common mode protective circuit is made up of the piezo-resistance GNR2, the GNR3 that connect between phase line L and the zero line N; The overvoltage discharge protection circuit is made up of the discharge tube TVS1, the TVS2 that connect between phase line L and the zero line N, all is connected to ground wire between piezo-resistance GNR2, the GNR3 and between discharge tube TVS1, the TVS2.
The beneficial effect that the utility model is compared with prior art produced is:
The circuit of a kind of two-phase power supply lightning protection device of the present utility model is simple and reliable; can realize of quick response and the protection of two-phase power supply unit to lightning protection; prevent that thunder and lightning and other internal overvoltage intrusion equipment from causing damage, has very high practical value in middle low power electronic product field.
Description of drawings
Accompanying drawing 1 is a theory diagram of the present utility model;
Accompanying drawing 2 is circuit diagrams of the present utility model.
Mark in the accompanying drawing is represented respectively:
1, power supply input circuit, 2, overvoltage differential mode protective circuit, 3, overvoltage common mode protective circuit, 4, the overvoltage discharge protection circuit, 5, power output circuit.
Embodiment
Below in conjunction with accompanying drawing a kind of two-phase power supply lightning protection device of the present utility model is done following detailed description the in detail.
As accompanying drawing 1, shown in Figure 2, this a kind of two-phase power supply lightning protection device successively via overvoltage differential mode protective circuit 2, overvoltage common mode protective circuit 3, overvoltage discharge protection circuit 4, exports 5 through the protection power supply in anti-jamming power-supply input 1 back again.
As shown in Figure 2, G, N, L are respectively ground wire, zero line, phase line, R is a conventional, electric-resistance, GNR1, GNR2, GNR3 are piezo-resistance, TVS1, TVS2 are discharge tube, be parallel with resistance R and capacitor C between the phase line L of power supply input 1 and zero line N, overvoltage differential mode protective circuit 2 is made up of the piezo-resistance GNR1 that is connected phase line L and zero line N; Overvoltage common mode protective circuit 3 is made up of the piezo-resistance GNR2, the GNR3 that connect between phase line L and zero line N; Overvoltage discharge protection circuit 4 is made up of the discharge tube TVS1, the TVS2 that connect between phase line L and zero line N, all is connected to ground wire between piezo-resistance GNR2, the GNR3 and between discharge tube TVS1, the TVS2, and then reaches desirable lightning-arrest effect.
Claims (2)
1. a two-phase power supply lightning protection device is characterized in that the circuit of this device successively comprises anti-jamming power-supply input circuit, overvoltage differential mode protective circuit, overvoltage common mode protective circuit, overvoltage discharge protection circuit and protection power output circuit.
2. a kind of two-phase power supply lightning protection device according to claim 1, it is characterized in that being parallel with resistance R and capacitor C on the power supply input circuit between phase line L and zero line N, overvoltage differential mode protective circuit is made up of the piezo-resistance GNR1 that is connected phase line L and zero line N; Overvoltage common mode protective circuit is made up of the piezo-resistance GNR2, the GNR3 that connect between phase line L and the zero line N; The overvoltage discharge protection circuit is made up of the discharge tube TVS1, the TVS2 that connect between phase line L and the zero line N, all is connected to ground wire between piezo-resistance GNR2, the GNR3 and between discharge tube TVS1, the TVS2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202816841U CN201523230U (en) | 2009-11-20 | 2009-11-20 | Two-phase electric power supply lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202816841U CN201523230U (en) | 2009-11-20 | 2009-11-20 | Two-phase electric power supply lightning protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523230U true CN201523230U (en) | 2010-07-07 |
Family
ID=42509406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202816841U Expired - Fee Related CN201523230U (en) | 2009-11-20 | 2009-11-20 | Two-phase electric power supply lightning protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917802A (en) * | 2010-07-30 | 2010-12-15 | 深圳市桑达实业股份有限公司 | LED street lamp and driving power supply circuit thereof |
| CN102315636A (en) * | 2011-08-26 | 2012-01-11 | 江苏上骐集团有限公司 | Lightning protection circuit for direct current motor and main power supply circuit |
-
2009
- 2009-11-20 CN CN2009202816841U patent/CN201523230U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917802A (en) * | 2010-07-30 | 2010-12-15 | 深圳市桑达实业股份有限公司 | LED street lamp and driving power supply circuit thereof |
| CN101917802B (en) * | 2010-07-30 | 2013-06-12 | 深圳市桑达实业股份有限公司 | LED street lamp and driving power supply circuit thereof |
| CN102315636A (en) * | 2011-08-26 | 2012-01-11 | 江苏上骐集团有限公司 | Lightning protection circuit for direct current motor and main power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20101120 |