CN103490642A - Minitype AC-DC power module - Google Patents
Minitype AC-DC power module Download PDFInfo
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- CN103490642A CN103490642A CN201310386889.7A CN201310386889A CN103490642A CN 103490642 A CN103490642 A CN 103490642A CN 201310386889 A CN201310386889 A CN 201310386889A CN 103490642 A CN103490642 A CN 103490642A
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- power
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Abstract
The invention discloses a minitype AC-DC power module which comprises an AC end, an AC-DC power conversion circuit and a DC end. A starting circuit is electrically connected between the AC end and the AC-DC power conversion circuit, the starting circuit is electrically connected with a control circuit, a variable-voltage circuit is electrically connected between the AC-DC power conversion circuit and the DC end, and a protection circuit is electrically connected between the AC end and the DC end. Therefore, the AC-DC power module can improve conversion efficiency, and is long in service life, good in safety and small in size.
Description
Technical field
The present invention relates to electronic applications, particularly relate to a kind of miniature 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 market is larger, traditional power frequency AC-DC power supply input range is limited, the civil power AC-input voltage need be transformed into to low alternating voltage, become required direct voltage carrying out rectification, exchange and inputted at the AC-DC power supply, under-voltage protection has very important effect, it does not work power supply when ac input voltage exceeds power supply permission working range again, with protection power source, prevent due to mistake, the under-voltage fault that causes, it is larger that existing AC-DC power supply has a volume, design is heavy, circuit structure falls behind, efficiency is low, anti-shake performance is bad, the shortcoming such as fragile.Demand that can't satisfying the market.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of miniature AC-DC power module, can improve conversion efficiency, long service life, and fail safe is good, and volume is little.
For solving the problems of the technologies described above; the technical scheme that the present invention adopts is: a kind of miniature AC-DC power module is provided; comprise: AC end, AC-DC power-switching circuit and DC end; be electrically connected with start-up circuit between described AC end and AC-DC power-switching circuit; be electrically connected with control circuit on described start-up circuit; be electrically connected with transforming circuit between described AC-DC power-switching circuit and DC end are electrical, between described AC end and DC end, be electrically connected with protective circuit.
In a preferred embodiment of the present invention, between described AC end and start-up circuit, be electrically connected with current rectifying and wave filtering circuit.
In a preferred embodiment of the present invention, between described transforming circuit and DC end, be electrically connected with filter circuit.
In a preferred embodiment of the present invention, described control circuit comprises switch, control chip and the executive circuit be electrically connected successively.
In a preferred embodiment of the present invention, described protective circuit comprises overvoltage crowbar and current foldback circuit.
The invention has the beneficial effects as follows: the miniature AC-DC power module of the present invention, can improve conversion efficiency, long service life, fail safe is good, and volume is little.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of miniature AC-DC power module one preferred embodiment of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, AC end, 2, the AC-DC power-switching circuit, 3, the DC end, 4, start-up circuit, 5, transforming circuit, 6, protective circuit, 7, current rectifying and wave filtering circuit, 8, filter circuit, 9, control circuit.
Embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1; a kind of miniature AC-DC power module; comprise: AC end 1, AC-DC power-switching circuit 2 and DC end 3; be electrically connected with start-up circuit 4 between described AC end and AC-DC power-switching circuit; be electrically connected with control circuit 9 on described start-up circuit 4; be electrically connected with transforming circuit 5 between described AC-DC power-switching circuit and DC end are electrical, between described AC end and DC end, be electrically connected with protective circuit 6.
In addition, be electrically connected with current rectifying and wave filtering circuit 7 between described AC end 1 and start-up circuit 6.
In addition, be electrically connected with filter circuit 8 between described transforming circuit 5 and DC end 3.
In addition, described control circuit 9 comprises switch, control chip and the executive circuit be electrically connected successively.
In addition, described protective circuit 6 comprises overvoltage crowbar and current foldback circuit.
Be different from prior art, the miniature AC-DC power module of the present invention, can improve conversion efficiency, long service life, and fail safe is good, and volume is little.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (5)
1. a miniature AC-DC power module; it is characterized in that; comprise: AC end, AC-DC power-switching circuit and DC end; be electrically connected with start-up circuit between described AC end and AC-DC power-switching circuit; be electrically connected with control circuit on described start-up circuit; be electrically connected with transforming circuit between described AC-DC power-switching circuit and DC end are electrical, between described AC end and DC end, be electrically connected with protective circuit.
2. miniature AC-DC power module according to claim 1, is characterized in that, between described AC end and start-up circuit, is electrically connected with current rectifying and wave filtering circuit.
3. miniature AC-DC power module according to claim 1, is characterized in that, between described transforming circuit and DC end, is electrically connected with filter circuit.
4. miniature AC-DC power module according to claim 1, is characterized in that, described control circuit comprises switch, control chip and the executive circuit be electrically connected successively.
5. miniature AC-DC power module according to claim 1, is characterized in that, described protective circuit comprises overvoltage crowbar and current foldback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386889.7A CN103490642A (en) | 2013-08-30 | 2013-08-30 | Minitype AC-DC power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386889.7A CN103490642A (en) | 2013-08-30 | 2013-08-30 | Minitype AC-DC power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103490642A true CN103490642A (en) | 2014-01-01 |
Family
ID=49830654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310386889.7A Pending CN103490642A (en) | 2013-08-30 | 2013-08-30 | Minitype AC-DC power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103490642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086883A1 (en) * | 2014-12-04 | 2016-06-09 | 深圳市高瓴科技有限公司 | Mobile phone charging cord with invisible charger |
-
2013
- 2013-08-30 CN CN201310386889.7A patent/CN103490642A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016086883A1 (en) * | 2014-12-04 | 2016-06-09 | 深圳市高瓴科技有限公司 | Mobile phone charging cord with invisible charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |
|
| WD01 | Invention patent application deemed withdrawn after publication |