CN202103580U - Lightening surge preventing power supply adapter - Google Patents
Lightening surge preventing power supply adapter Download PDFInfo
- Publication number
- CN202103580U CN202103580U CN2011202282771U CN201120228277U CN202103580U CN 202103580 U CN202103580 U CN 202103580U CN 2011202282771 U CN2011202282771 U CN 2011202282771U CN 201120228277 U CN201120228277 U CN 201120228277U CN 202103580 U CN202103580 U CN 202103580U
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- resistance
- circuit
- piezo
- power supply
- surge
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Abstract
A lightening surge preventing power supply adapter is provided with a primary rectification circuit, a primary filter circuit, an inversion circuit, a secondary rectification filter circuit and a feedback circuit, and is also provided with a surge absorption circuit, wherein one end of the surge absorption circuit is connected to a power supply input end, and the other end of the surge absorption circuit is connected to the input end of the primary rectification circuit. The surge adsorption circuit is provided with a pressure-sensitive resistor MOV1, a pressure-sensitive resistor MOV2, a pressure-sensitive resistor MOV3, a protective tube F1, a protective tube F2 and a negative temperature coefficient thermistor NTC. The lightening surge preventing power supply adapter has the characteristic of preventing the impact of an extra-high lightning surge, thus being capable of effectively protecting a power supply and related devices.
Description
Technical field
The utility model relates to switch power technology, particularly relates to a kind of anti-thunderbolt surge power supply adaptor.
Background technology
Power supply adaptor is the power supply conversion equipment of small portable electronic device and electronic apparatus; On products such as electronic product and household electrical appliance, be widely used; But the power supply adaptor of existing market is resisted limited in one's ability that lightning surge impacts; Particularly to the lightning surge of extra-high-speed, existing power supply adaptor can not prevent the impact of lightning surge effectively, thereby can't effectively protect power supply and relevant device.
Not enough to prior art, provide that a kind of to have an anti-thunderbolt surge power supply adaptor that can have surge absorbing circuit very necessary to solve the prior art deficiency.
The utility model content
The purpose of the utility model is to avoid the weak point of prior art and a kind of anti-thunderbolt surge power supply adaptor is provided, and this anti-thunderbolt surge power supply adaptor can be resisted the ultra high voltage lightning surge and impact, and the protection power supply is not damaged.
The purpose of the utility model realizes through following technical measures.
A kind of anti-thunderbolt surge power supply adaptor; Be provided with elementary rectification circuit, elementary filter circuit, inverter circuit, secondary commutation filter circuit and feedback circuit; Also be provided with surge absorbing circuit; One end of said surge absorbing circuit is connected with power input, and the other end of said surge absorbing circuit is connected with the input of said elementary rectification circuit.
Above-mentioned surge absorbing circuit is provided with piezo-resistance MOV1, piezo-resistance MOV2, piezo-resistance MOV3, protective tube F1, protective tube F2 and negative tempperature coefficient thermistor NTC.
Above-mentioned protective tube F1 one end is connected with said negative tempperature coefficient thermistor NTC one end, and the above-mentioned protective tube F1 other end is connected with power input N end.
The above-mentioned negative tempperature coefficient thermistor NTC other end is connected with piezo-resistance MOV1 one end, piezo-resistance MOV3 one end.
Above-mentioned protective tube F2 one end and piezo-resistance MOV2 one end, the piezo-resistance MOV3 other end connects, and the other end of protective tube F2 is connected with power input L end.
The above-mentioned piezo-resistance MOV1 other end, the piezo-resistance MOV2 other end connect and are connected with the earth;
The model of above-mentioned piezo-resistance MOV1 is 14D471.
The model of above-mentioned piezo-resistance MOV2 is 14D471.
The model of above-mentioned piezo-resistance MOV3 is 14D471.
The negative tempperature coefficient thermistor NTC that above-mentioned negative tempperature coefficient thermistor NTC is 3R/6A.
A kind of anti-thunderbolt surge power supply adaptor of the utility model; Be provided with elementary rectification circuit, elementary filter circuit, inverter circuit, secondary commutation filter circuit and feedback circuit; Also be provided with surge absorbing circuit; One end of said surge absorbing circuit is connected with power input, and the other end of said surge absorbing circuit is connected with the input of said elementary rectification circuit.The utlity model has the characteristics of the impact of anti-extra-high-speed lightning surge, effectively protect power supply and relevant device.
Description of drawings
Utilize accompanying drawing that the utility model is further described, but the content in the accompanying drawing does not constitute any restriction to the utility model.
Fig. 1 is the circuit diagram of the surge absorbing circuit of a kind of anti-thunderbolt surge power supply adaptor of the utility model.
Fig. 2 is the circuit diagram that utilizes a kind of anti-thunderbolt surge power supply adaptor of the utility model.
In Fig. 1, Fig. 2, comprising:
Secondary commutation filter circuit 600.
Embodiment
In conjunction with following examples the utility model is described further.
embodiment 1.
A kind of anti-thunderbolt surge power supply adaptor; Like Fig. 1, shown in Figure 2; Be provided with elementary rectification circuit 200, elementary filter circuit 300, inverter circuit 400, secondary commutation filter circuit 600 and feedback circuit 500 [MS1] and also be provided with surge absorbing circuit 100; One end of surge absorbing circuit 100 is connected with power input, and the other end of surge absorbing circuit 100 is connected with the input of elementary rectification circuit 200.
The end of protective tube F1 is connected with the end of negative tempperature coefficient thermistor NTC, and the other end of protective tube F1 is connected with power input N end.
The other end of negative tempperature coefficient thermistor NTC is connected with the end of piezo-resistance MOV1, the end of piezo-resistance MOV3.
The end of protective tube F2 and the end of piezo-resistance MOV2, the other end of piezo-resistance MOV3 connects.
The other end of piezo-resistance MOV1, the other end of piezo-resistance MOV2 are connected with the earth.
The other end of protective tube F2 is connected with power input L end.
Secondary commutation filter circuit 600 is provided with inductance L 11, capacitor C 20, capacitor C 21, capacitor C 5, resistance R 55, diode D3 and diode D4.
The utility model is provided with surge absorbing circuit 100; Piezo-resistance MOV1, piezo-resistance MOV2, piezo-resistance MOV3 are used to absorb surge; Protective tube F1, protective tube F2 and negative tempperature coefficient thermistor NTC can suppress surge; Therefore power supply and relevant device can be effectively protected in the impact that the utility model can anti-extra-high-speed lightning surge.
embodiment 2.
A kind of anti-thunderbolt surge power supply adaptor, other structure is identical with embodiment 1, and difference is: the model of negative tempperature coefficient thermistor NTC parameter and piezo-resistance MOV1, piezo-resistance MOV2, piezo-resistance MOV3 is selected specific parameter and model for use.
Negative tempperature coefficient thermistor NTC parameter is 3R/6A.
The model of piezo-resistance MOV1 is 14D471.
The model of piezo-resistance MOV2 is 14D471.
The model of piezo-resistance MOV3 is 14D471.
Need to prove; Piezo-resistance MOV1, piezo-resistance MOV2, piezo-resistance MOV3 also can select other model; As long as satisfy the requirement of preventing thunderbolt surge power supply adaptor and suppressing, the requirement that reaches protective circuit, the user can change as required flexibly.
Should be noted that at last; Above embodiment only be used to explain the utility model technical scheme but not to the restriction of the utility model protection range; Although the utility model has been done detailed description with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model, and do not break away from the essence and the scope of the utility model technical scheme.
Claims (6)
1. prevent thunderbolt surge power supply adaptor for one kind; Be provided with elementary rectification circuit, elementary filter circuit, inverter circuit, secondary commutation filter circuit and feedback circuit; It is characterized in that: also be provided with surge absorbing circuit; One end of said surge absorbing circuit is connected with power input, and the other end of said surge absorbing circuit is connected with the input of said elementary rectification circuit.
2. anti-thunderbolt surge power supply adaptor according to claim 1, it is characterized in that: said surge absorbing circuit is provided with piezo-resistance MOV1, piezo-resistance MOV2, piezo-resistance MOV3, protective tube F1, protective tube F2 and negative tempperature coefficient thermistor NTC;
The end of said protective tube F1 is connected with the end of said negative tempperature coefficient thermistor NTC, and the other end of said protective tube F1 is connected with power input N end;
The other end of said negative tempperature coefficient thermistor NTC is connected with the end of piezo-resistance MOV1, the end of piezo-resistance MOV3;
The end of said protective tube F2 and the end of piezo-resistance MOV2, the other end of piezo-resistance MOV3 connects;
The other end of said piezo-resistance MOV1, the other end of piezo-resistance MOV2 are connected with the earth;
The other end of said protective tube F2 is connected with power input L end.
3. anti-thunderbolt surge power supply adaptor according to claim 2, it is characterized in that: the model of said piezo-resistance MOV1 is 14D471.
4. anti-thunderbolt surge power supply adaptor according to claim 2, it is characterized in that: the model of said piezo-resistance MOV2 is 14D471.
5. anti-thunderbolt surge power supply adaptor according to claim 4, it is characterized in that: the model of said piezo-resistance MOV3 is 14D471.
6. anti-thunderbolt surge power supply adaptor according to claim 2 is characterized in that: the negative tempperature coefficient thermistor NTC that said negative tempperature coefficient thermistor NTC is 3R/6A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202282771U CN202103580U (en) | 2011-06-30 | 2011-06-30 | Lightening surge preventing power supply adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202282771U CN202103580U (en) | 2011-06-30 | 2011-06-30 | Lightening surge preventing power supply adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202103580U true CN202103580U (en) | 2012-01-04 |
Family
ID=45389578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202282771U Expired - Fee Related CN202103580U (en) | 2011-06-30 | 2011-06-30 | Lightening surge preventing power supply adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202103580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391042A (en) * | 2015-11-03 | 2016-03-09 | 丹阳奇烨科技有限公司 | Novel anti-lightning surge power adapter |
-
2011
- 2011-06-30 CN CN2011202282771U patent/CN202103580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391042A (en) * | 2015-11-03 | 2016-03-09 | 丹阳奇烨科技有限公司 | Novel anti-lightning surge power adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |