CN207150411U - One kind input Pressure and Control circuit - Google Patents
One kind input Pressure and Control circuit Download PDFInfo
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- CN207150411U CN207150411U CN201721213506.6U CN201721213506U CN207150411U CN 207150411 U CN207150411 U CN 207150411U CN 201721213506 U CN201721213506 U CN 201721213506U CN 207150411 U CN207150411 U CN 207150411U
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- control circuit
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Abstract
The utility model provides a kind of input Pressure and Control circuit, it is characterized in that, the circuit includes two inputs series connection output end switch power modules in parallel, the input of each switch power module has terminated an input capacitance, the controlled tr tube of two series connection is connected across the both ends of input voltage source, and one inductance of each controlled tr tube series connection is in parallel with input capacitance.The dutycycle that the circuit is operated in 50% by two metal-oxide-semiconductors with unification inductance is pressed to realize to input, it is simple in construction, easily realize, provide a kind of new control circuit structure to input pressure, develop for Switching Power Supply to high-power direction and provide a kind of new scheme.
Description
Technical field
Field of switch power is the utility model is related to, Pressure and Control circuit is inputted more particularly to one kind.
Background technology
When the input voltage of Switching Power Supply is the high pressure of several hectovolts, then master power switch pipe necessarily high pressure
MOSFET, the usual conducting resistance of high-voltage MOSFET is big, loss caused by identical electric current is flowed through on the big resistance of resistance greatly, so
It is big to have led to the open circuit loss of Switching Power Supply, band carry efficiency it is low, while high voltage input, it is necessary to input filter device it is specified
Voltage is high, and volume is big, and this is contradiction with the highdensity developing direction of Switching Power Supply small size.
In order to solve above-mentioned contradiction, present way is typically that the module input inputted with two low-voltages is connected, defeated
Go out end application in parallel, two module input series connection can be with partial pressure, then the input voltage in each module is exactly original 1/2, defeated
Going out parallel connection can shunt, and can reduce the power output of each module, thus it is unnecessary to the Switching Power Supply of designing high-power
Module expends substantial amounts of R&D costs.
It is the stable work of switching power converters that pressure is inputted for the switch power module of input series and output parallel
The guarantee of work.If input can not be pressed, output voltage is identical, then the power that a module is born is big, is born in a module
Power it is small, damage can be quickly invalidated by bearing high-power module, then another module also because bear deficiency input high pressure
Also fail.Thus the power module for input series and output parallel has to solve the problems, such as to input voltage un-balance.
In order to solve the problems, such as above-mentioned input voltage un-balance, the utility model provides a kind of simple in construction, input easily realized
Pressure and Control circuit.
Utility model content
The technical problem that the utility model solves is to provide a kind of input Pressure and Control circuit.
Technical scheme is used by the utility model solves above-mentioned technical problem:One kind input Pressure and Control circuit, its
It is characterised by, the circuit includes two inputs series connection output end switch power modules in parallel, each switch power module
Input has terminated an input capacitance, and the controlled tr tube of two series connection is connected across the both ends of input voltage source, each controllable to open
It is in parallel with input capacitance to close pipe one inductance of series connection.
Preferably, above-mentioned input Pressure and Control circuit, it is characterised in that above-mentioned two switch power module output end is simultaneously
Connection, output loading is connected after connecing output capacitance.
Preferably, above-mentioned input Pressure and Control circuit, it is characterised in that above-mentioned two switch power module in parallel is line
Line structure is identical, two modules similar in power output.
Preferably, above-mentioned input Pressure and Control circuit, it is characterised in that above-mentioned circuit is matched somebody with somebody by two controlled tr tubes
The dutycycle that unification inductance is operated in 50% is pressed to realize.
Preferably, above-mentioned input Pressure and Control circuit, it is characterised in that above-mentioned controlled tr tube is MOSFET.
Preferably, above-mentioned input Pressure and Control circuit, it is characterised in that driver circuit provides signals to MOSFET gate pole
To control turning on and off for MOSFET.
The utility model provides a kind of input Pressure and Control circuit, simple in construction, cost is low, loss is small, high efficiency, makes
The high power switching power supply application of high voltage input High-current output is more extensive, to promote the development of new and high technology electronic product
Contribute.
Brief description of the drawings
Fig. 1 is input Pressure and Control conspectus.
Embodiment
The embodiment of the utility model circuit is provided below in conjunction with the accompanying drawings, to describe technical side of the present utility model in detail
Case.
As shown in figure 1,10 and 20 be the switch power module of two input series and output parallel respectively, C1, C2 are respectively
10 and 20 input capacitance, N-type metal-oxide-semiconductor Q1 and Q2 series connection, Q1 Drain connect the positive pole of input voltage source, and Q2 Source connects
The negative pole of input voltage source, Q1 Source and Q2 Drain are connected, and tie point is B points, and C1 and C2 tie point is A points, B
Point is connected by an inductance L1 with A.Driver circuit makes Q1, and Q2 dutycycle is 50%, in a cycle, when the voltage of A points
During more than 1/2Vin, it will be greater than flowing into C2 electric current by inductance L1 outflows C2 electric current, then the voltage of A points has becoming for decline
Gesture, after some cycles, A DC voltage stability is in 1/2Vin;Conversely, when A voltage is less than 1/2Vin, pass through inductance
L1 reserves C2 electric current by the electric current less than outflow C2, and then the voltage of A points has the trend of rising, and after some cycles, A's is straight
Stream voltage can be stablized in 1/2Vin.
Although the foregoing describing specific implementation circuit of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and on the premise of without departing substantially from principle of the present utility model and essence, these implementation circuits can be done
Go out various changes or modifications.Therefore, the scope of protection of the utility model is defined by the appended claims.
Claims (6)
1. one kind input Pressure and Control circuit, it is characterised in that the circuit is connected comprising two inputs, and output ends are in parallel to be opened
Powered-down source module, the input of each switch power module have terminated an input capacitance, the controlled tr tube bridging of two series connection
At the both ends of input voltage source, one inductance of each controlled tr tube series connection is in parallel with input capacitance.
2. a kind of input Pressure and Control circuit as claimed in claim 1, it is characterised in that above-mentioned two switch power module is defeated
It is in parallel to go out end, output loading is connected after connecing output capacitance.
A kind of 3. input Pressure and Control circuit as claimed in claim 1, it is characterised in that above-mentioned two Switching Power Supply in parallel
Module is that line construction is identical, two modules similar in power output.
4. input Pressure and Control circuit as claimed in claim 1 a kind of, it is characterised in that above-mentioned circuit controllable is opened by two
Guan Guan, the dutycycle that 50% is operated in unification inductance are pressed to realize.
5. input Pressure and Control circuit as claimed in claim 4 a kind of, it is characterised in that above-mentioned controlled tr tube is
MOSFET。
6. a kind of input Pressure and Control circuit as claimed in claim 5, it is characterised in that driver circuit provides signals to
MOSFET gate pole controls turning on and off for MOSFET.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721213506.6U CN207150411U (en) | 2017-09-20 | 2017-09-20 | One kind input Pressure and Control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721213506.6U CN207150411U (en) | 2017-09-20 | 2017-09-20 | One kind input Pressure and Control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207150411U true CN207150411U (en) | 2018-03-27 |
Family
ID=61668330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201721213506.6U Active CN207150411U (en) | 2017-09-20 | 2017-09-20 | One kind input Pressure and Control circuit |
Country Status (1)
Country | Link |
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CN (1) | CN207150411U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107482884A (en) * | 2017-09-20 | 2017-12-15 | 江苏兆能电子有限公司 | One kind input Pressure and Control circuit |
CN109302073A (en) * | 2018-10-26 | 2019-02-01 | 哈尔滨工业大学(深圳) | A kind of knockdown converter of input tandem type |
-
2017
- 2017-09-20 CN CN201721213506.6U patent/CN207150411U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107482884A (en) * | 2017-09-20 | 2017-12-15 | 江苏兆能电子有限公司 | One kind input Pressure and Control circuit |
CN109302073A (en) * | 2018-10-26 | 2019-02-01 | 哈尔滨工业大学(深圳) | A kind of knockdown converter of input tandem type |
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CP02 | Change in the address of a patent holder |
Address after: 212000 No.298, daijiamen Road, Zhenjiang high tech Zone, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU ZHAONENG ELECTRONIC CO.,LTD. Address before: No.99, dingmaojing 15th Road, Zhenjiang New District, Zhenjiang City, Jiangsu Province, 212009 Patentee before: JIANGSU ZHAONENG ELECTRONIC CO.,LTD. |