CN202282736U - Switch power supply compatible of synchronous rectification and diode rectification - Google Patents
Switch power supply compatible of synchronous rectification and diode rectification Download PDFInfo
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- CN202282736U CN202282736U CN2011204403145U CN201120440314U CN202282736U CN 202282736 U CN202282736 U CN 202282736U CN 2011204403145 U CN2011204403145 U CN 2011204403145U CN 201120440314 U CN201120440314 U CN 201120440314U CN 202282736 U CN202282736 U CN 202282736U
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- synchronous rectification
- diode
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- rectification
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Abstract
The utility model provides a switch power supply compatible of synchronous rectification and diode rectification, comprising a mainboard and a synchronous rectification circuit board; the mainboard is provided with a rectification circuit interface which is at least provided with two diode interfaces; the synchronous rectification circuit board is provided with a synchronous rectification chip, two signal output ends of which are respectively at least in connection with one MOS pipe; the synchronous rectification circuit board is also provided with a conversion interface; the conversion interface is used for connecting the synchronize rectification circuit board with the rectification circuit interface on the mainboard, wherein each MOS pipe is respectively in corresponding with one diode interface; a source electrode of the MOS pipe is in corresponding connection with an anode of a diode interface; a drain electrode of the MOS pipe is in corresponding connection with a cathode of the diode interface. According to the design mode, the circuit board can be simplified, inventory and production costs of production manufacturers can be reduced and the reliability of a whole machine can be improved.
Description
Technical field
The utility model relates to the switch power technology field, the Switching Power Supply of particularly a kind of compatible synchronous rectification and diode rectification.
Background technology
In switching power circuit design, relatively more commonly used at present have two kinds of circuit structures, and a kind of is to adopt diode rectification, and another kind is to adopt the rectification of synchronous rectification chip.Wherein, diode rectification is commonplace, but have some shortcomings, and the pressure drop that is exactly diode is too big, in big stream performance particularly outstanding, bigger to the influence of Switching Power Supply overall efficiency, advantage is that circuit is simple, and is cheap.And synchronous rectification has been made very big improvement to the shortcoming of diode rectification, has improved overall efficiency to a great extent, but has also had complicated circuit, the shortcoming that cost is also high.To different service conditions and customer requirement, manufacturer often need be used alternatingly above two kinds of different rectifier systems and carry out circuit design.This often just needs manufacturer to be directed against the motherboard design that same circuit design provides two kinds of different rectifier systems.Like this, be unfavorable for the certification work of product, more be unfavorable for the stock of manufacturer and reduce production costs.
Therefore, to the problems referred to above we be necessary to design a kind of can compatible synchronous rectification and the Switching Power Supply design of diode rectification.
Summary of the invention
The main purpose of the utility model is to solve the problem that exists in the prior art, and the Switching Power Supply of a kind of compatible synchronous rectification and diode rectification is provided.
The purpose of the utility model is achieved through following technical proposals:
The Switching Power Supply of a kind of compatible synchronous rectification and diode rectification is characterized in that: said Switching Power Supply comprises mainboard and circuit of synchronous rectification plate;
Said mainboard is provided with the rectification circuit interface; At least be provided with two diode interfaces on the said rectification circuit interface; Said diode interface is installed rectifier diode in order to correspondence;
Said circuit of synchronous rectification plate is provided with the synchronous rectification chip; Said synchronous rectification chip comprises two signal output parts; Two signal output parts of said synchronous rectification chip are connected with a metal-oxide-semiconductor respectively at least; Also be provided with translation interface on this circuit of synchronous rectification plate; Said translation interface; With so that the circuit of synchronous rectification plate be connected with rectification circuit interface on the mainboard; Wherein, The respectively corresponding said diode interface of said each metal-oxide-semiconductor, the corresponding connection of anode of the source electrode of metal-oxide-semiconductor and diode interface, the corresponding connection of negative electrode of the drain electrode of metal-oxide-semiconductor and diode interface.
Said rectification circuit interface is provided with four diode interfaces; Four diode interfaces of said circuit of synchronous rectification plate and this are corresponding to be provided with four metal-oxide-semiconductors; Wherein, two metal-oxide-semiconductors are in series on one road signal output part of said synchronous rectification chip, and two metal-oxide-semiconductors are in series on another road signal output part of said synchronous rectification chip in addition.
Two signal output parts of said synchronous rectification chip are exported complementary switch enable signal respectively.
The model of said synchronous rectification chip is SRK2000.
Through the utility model embodiment, can simplify the design of circuit board, improve the uniformity of board design, reduce the stock and the production cost of manufacturer, improve the reliability of complete machine.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the qualification to the utility model.In the accompanying drawings:
Fig. 1 is the circuit diagram of Switching Power Supply mainboard;
Fig. 2 is the circuit diagram of Switching Power Supply circuit of synchronous rectification plate.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is explained further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the utility model and explanation thereof are used to explain the utility model, but not as the qualification to the utility model.
As previously mentioned, to present manufacturer often need provide with regard to same circuit design the problem of the motherboard design of two kinds of different rectifier systems, the utility model designed a kind of can compatible synchronous rectification and the Switching Power Supply of diode rectification.
Fig. 1 is the circuit diagram of this Switching Power Supply mainboard.As shown in the figure, this Switching Power Supply mainboard is provided with the rectification circuit interface.At least be provided with two diode interface V15, V19 on the said rectification circuit interface.Said diode interface is installed rectifier diode in order to correspondence.
Said Switching Power Supply also is provided with the circuit of synchronous rectification plate.Fig. 2 is the circuit diagram of this circuit of synchronous rectification plate.As shown in the figure, this circuit of synchronous rectification plate is provided with synchronous rectification chip N1.In the present embodiment, what this synchronous rectification chip was specifically selected for use is that model is the synchronous rectification chip of SRK2000.This synchronous rectification chip comprises two signal output parts, respectively the complementary switch enable signal of output.Two signal output parts of this synchronous rectification chip are connected with a metal-oxide-semiconductor V9, V11 respectively at least.Also be provided with translation interface on this circuit of synchronous rectification plate.This translation interface; With so that the circuit of synchronous rectification plate be connected with rectification circuit interface on the mainboard; Respectively corresponding said diode interface of each metal-oxide-semiconductor wherein, the corresponding connection of anode of the source electrode of metal-oxide-semiconductor and diode interface, the corresponding connection of negative electrode of the drain electrode of metal-oxide-semiconductor and diode interface.In the present embodiment, said metal-oxide-semiconductor V9 is corresponding with diode interface V15, and metal-oxide-semiconductor V11 is corresponding with diode interface V19.
In addition, in order further to increase the rated current of Switching Power Supply, in the present embodiment, said rectification circuit interface specifically includes four diode interface V15, V19, V14, V20.Corresponding four metal-oxide-semiconductor V9, V11, V10, the V12 of on the circuit of synchronous rectification plate, also being provided with.Wherein, metal-oxide-semiconductor V9, V10 are connected on the road signal output part of synchronous rectification chip N1, and metal-oxide-semiconductor V11, V12 are connected on another road signal output part of synchronous rectification chip N1.Said metal-oxide-semiconductor V9 is corresponding with diode interface V15, and metal-oxide-semiconductor V11 is corresponding with diode interface V19, and said metal-oxide-semiconductor V10 is corresponding with diode interface V14, and metal-oxide-semiconductor V12 is corresponding with diode interface V20.Can increase the rated current of Switching Power Supply through this design.
Based on above-mentioned design, production firm is no longer necessary for different rectifier system designs two cover circuit boards to same circuit design, but only need design a unified mainboard to the diode rectification mode.When needs adopt synchronous rectification, only need to adopt additional above-mentioned circuit of synchronous rectification plate, be transferred to through said translation interface on the respective pin of diode rectification interface on the mainboard and get final product.Can simplify the design of circuit board through this kind design, improve the uniformity of board design, reduce the stock and the production cost of manufacturer, improve the reliability of complete machine.Persons skilled in the art are under this design philosophy, and any not creative transformation of doing all should be regarded as within the protection range of the utility model.
Claims (4)
1. the Switching Power Supply of compatible synchronous rectification and diode rectification, it is characterized in that: said Switching Power Supply comprises mainboard and circuit of synchronous rectification plate;
Said mainboard is provided with the rectification circuit interface; At least be provided with two diode interfaces on the said rectification circuit interface; Said diode interface is installed rectifier diode in order to correspondence;
Said circuit of synchronous rectification plate is provided with the synchronous rectification chip; Said synchronous rectification chip comprises two signal output parts; Two signal output parts of said synchronous rectification chip are connected with a metal-oxide-semiconductor respectively at least; Also be provided with translation interface on this circuit of synchronous rectification plate; Said translation interface; With so that the circuit of synchronous rectification plate be connected with rectification circuit interface on the mainboard; Wherein, The respectively corresponding said diode interface of said each metal-oxide-semiconductor, the corresponding connection of anode of the source electrode of metal-oxide-semiconductor and diode interface, the corresponding connection of negative electrode of the drain electrode of metal-oxide-semiconductor and diode interface.
2. Switching Power Supply as claimed in claim 1 is characterized in that: said rectification circuit interface is provided with four diode interfaces; Four diode interfaces of said circuit of synchronous rectification plate and this are corresponding to be provided with four metal-oxide-semiconductors; Wherein, two metal-oxide-semiconductors are in series on one road signal output part of said synchronous rectification chip, and two metal-oxide-semiconductors are in series on another road signal output part of said synchronous rectification chip in addition.
3. according to claim 1 or claim 2 Switching Power Supply, it is characterized in that: two signal output parts of said synchronous rectification chip are exported complementary switch enable signal respectively.
4. Switching Power Supply as claimed in claim 1 is characterized in that: the model of said synchronous rectification chip is SRK2000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204403145U CN202282736U (en) | 2011-11-09 | 2011-11-09 | Switch power supply compatible of synchronous rectification and diode rectification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204403145U CN202282736U (en) | 2011-11-09 | 2011-11-09 | Switch power supply compatible of synchronous rectification and diode rectification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282736U true CN202282736U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204403145U Expired - Fee Related CN202282736U (en) | 2011-11-09 | 2011-11-09 | Switch power supply compatible of synchronous rectification and diode rectification |
Country Status (1)
| Country | Link |
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| CN (1) | CN202282736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849701A (en) * | 2017-03-30 | 2017-06-13 | 四川汇源光通信有限公司 | One kind exchange input MOS commutation driver circuits and unit module circuit |
-
2011
- 2011-11-09 CN CN2011204403145U patent/CN202282736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849701A (en) * | 2017-03-30 | 2017-06-13 | 四川汇源光通信有限公司 | One kind exchange input MOS commutation driver circuits and unit module circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Switch power supply compatible of synchronous rectification and diode rectification Effective date of registration: 20150618 Granted publication date: 20120620 Pledgee: Beijing technology business factoring Ltd. Pledgor: Beijing Tonlier Energy-saving LLC. Registration number: 2015990000483 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20171109 |