CN202872662U - Microminiature AC/DC power supply module - Google Patents
Microminiature AC/DC power supply module Download PDFInfo
- Publication number
- CN202872662U CN202872662U CN 201220543898 CN201220543898U CN202872662U CN 202872662 U CN202872662 U CN 202872662U CN 201220543898 CN201220543898 CN 201220543898 CN 201220543898 U CN201220543898 U CN 201220543898U CN 202872662 U CN202872662 U CN 202872662U
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- circuit
- microminiature
- power supply
- power module
- utility
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Abstract
The utility model discloses a microminiature AC/DC power supply module. The microminiature AC/DC power supply module comprises a power supply, an AC-DC circuit, a control circuit, a transformation circuit, a filter circuit, a rectification circuit and an output circuit. A switch circuit is connected on the control circuit. A protection circuit is connected between the AC-DC circuit and the output circuit. The control circuit comprises a control chip and an execution circuit. By adopting the above-mentioned technical scheme, the microminiature AC/DC power supply module has the advantages of small size, high output efficiency, strong reliability, high safety and long service lifetime.
Description
Technical field
The utility model relates to the power module field, particularly relates to a kind of microminiature AC/DC power module.
Background technology
At present; electronic product is just in develop rapidly; the common volume of AC-DC power module product on the market is larger; traditional power frequency AC-DC power supply input range is limited; need the civil power AC-input voltage is transformed into low alternating voltage; become required direct voltage carrying out rectification, exchange at the AC-DC power supply and inputted; under-voltage protection has very important effect, and it does not work power supply when ac input voltage exceeds power supply permission working range again; with protection power source; prevent because mistake; it is larger that the under-voltage fault that causes, existing AC-DC power supply have a volume, and design is heavy; circuit structure falls behind; the shortcomings such as efficient is low, and anti-shake performance is bad, and is fragile.Demand that can't satisfying the market.
The utility model content
The technical problem that the utility model mainly solves provides that a kind of volume is little, delivery efficiency is high, reliability is strong, the microminiature AC/DC power module of safe, long service life.
For solving the problems of the technologies described above; the technical scheme that the utility model adopts is: a kind of microminiature AC/DC power module is provided; comprise: the power supply that connects successively, interchange conversion DC circuit, control circuit, transforming circuit, filter circuit, rectification circuit and output circuit; be connected with switching circuit on the described control circuit; be connected with protective circuit between described interchange conversion DC circuit and the output circuit, described control circuit comprises control chip and executive circuit.
In preferred embodiment of the utility model, described protective circuit comprises overvoltage crowbar and current foldback circuit.
In preferred embodiment of the utility model, described filter circuit comprises a plurality of capacitors and inductor.
In preferred embodiment of the utility model, described transforming circuit is transformer.
In preferred embodiment of the utility model, the magnet ring that described transformer adopting R7K material is made, and be wound with the wire that two-layer above insulating barrier is made at magnet ring.
The beneficial effects of the utility model are: the utility model volume is little, delivery efficiency is high, reliability is strong, the microminiature AC/DC power module of safe, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model microminiature AC/DC power module one preferred embodiment;
The mark of each parts is as follows in the accompanying drawing: 1, power supply, 2, exchange the conversion DC circuit, 3, control circuit, 4, transforming circuit; 5, filter circuit, 6, rectification circuit, 7, output circuit, 8, switching circuit; 9 protective circuits, 10, control chip, 11, executive circuit.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection range of the present utility model is made more explicit defining.
See also Fig. 1; a kind of microminiature AC/DC power module; comprise: the power supply 1 that connects successively, interchange conversion DC circuit 2, control circuit 3, transforming circuit 4, filter circuit 5, rectification circuit 6 and output circuit 7; be connected with switching circuit 8 on the described control circuit 3; be connected with protective circuit 9 between described interchange conversion DC circuit 2 and the output circuit 7; described control circuit 3 comprises control chip 10 and executive circuit 11, the control that control circuit 3 is realized circuit.
In addition, described protective circuit 3 comprises overvoltage crowbar and current foldback circuit, and when overvoltage or overcurrent, the protective circuit automatic shutdown circuit prevents that power module is destroyed.
In addition, described filter circuit 5 comprises a plurality of capacitors and inductor.
In addition, described transforming circuit 4 is transformer.
In addition, the magnet ring that described transformer adopting R7K material is made, and be wound with the wire that two-layer above insulating barrier is made at magnet ring.
The utility model microminiature AC/DC power module specific works principle is as follows: power supply 1 is started working, then change by exchanging conversion DC circuit 2, control circuit 3 is controlled, process transforming circuit 4, filter circuit 5 and rectification circuit 6 are exported by output circuit 7 after adjusting.
Be different from prior art, the utility model microminiature AC/DC power module volume is little, delivery efficiency is high, reliability is strong, safe, long service life.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. microminiature AC/DC power module; it is characterized in that; comprise: the power supply that connects successively, interchange conversion DC circuit, control circuit, transforming circuit, filter circuit, rectification circuit and output circuit; be connected with switching circuit on the described control circuit; be connected with protective circuit between described interchange conversion DC circuit and the output circuit, described control circuit comprises control chip and executive circuit.
2. microminiature AC/DC power module according to claim 1 is characterized in that, described protective circuit comprises overvoltage crowbar and current foldback circuit.
3. microminiature AC/DC power module according to claim 1 is characterized in that, described filter circuit comprises a plurality of capacitors and inductor.
4. microminiature AC/DC power module according to claim 1 is characterized in that, described transforming circuit is transformer.
5. microminiature AC/DC power module according to claim 4 is characterized in that, the magnet ring that described transformer adopting R7K material is made, and be wound with the wire that two-layer above insulating barrier is made at magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543898 CN202872662U (en) | 2012-10-23 | 2012-10-23 | Microminiature AC/DC power supply module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543898 CN202872662U (en) | 2012-10-23 | 2012-10-23 | Microminiature AC/DC power supply module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872662U true CN202872662U (en) | 2013-04-10 |
Family
ID=48039348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220543898 Expired - Fee Related CN202872662U (en) | 2012-10-23 | 2012-10-23 | Microminiature AC/DC power supply module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872662U (en) |
-
2012
- 2012-10-23 CN CN 201220543898 patent/CN202872662U/en not_active Expired - Fee Related
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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: 20130410 Termination date: 20131023 |