CN107612345A - A kind of circuit of DC/DC converters full-wave rectification driving - Google Patents
A kind of circuit of DC/DC converters full-wave rectification driving Download PDFInfo
- Publication number
- CN107612345A CN107612345A CN201710900402.0A CN201710900402A CN107612345A CN 107612345 A CN107612345 A CN 107612345A CN 201710900402 A CN201710900402 A CN 201710900402A CN 107612345 A CN107612345 A CN 107612345A
- Authority
- CN
- China
- Prior art keywords
- circuit
- oxide
- semiconductor
- metal
- triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Rectifiers (AREA)
Abstract
The present invention provides a kind of circuit of DC/DC converters full-wave rectification driving.The circuit includes：Transformer；The first metal-oxide-semiconductor and the second metal-oxide-semiconductor being respectively coupled to the both ends of the output of the transformer；The first triode and the second triode being respectively coupled to the both ends of the output of the transformer；The 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor being respectively coupled to first triode and second triode；The first push-pull circuit and the second push-pull circuit coupled respectively with the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor.
Description
Technical field
The present invention relates to output full-wave rectification new self-driving circuit, more particularly to a kind of DC/DC converters full-wave rectification
The circuit of driving.
Background technology
In D/C power system, output synchronous rectification can effectively improve overall efficiency, commonly use driving chip, driving transformer
Or self-driving circuit realizes that metal-oxide-semiconductor drives.It is higher using driving chip or driving transformer resolution circuitry complexity, cost；Commonly use certainly
Crystal drive circuit requires that output voltage can not be too high, big using limitation, easily produces and simultaneously turns on, reliability is relatively low.
The content of the invention
In view of the shortcomings of the prior art, it is a primary object of the present invention to propose that a kind of DC/DC converters full-wave rectification is driven
Dynamic circuit.The purpose of the present invention is optimization self-powered drive circuit, makes self-powered driving more general, reliable.
According to above-mentioned purpose, the present invention provides a kind of circuit of DC/DC converters full-wave rectification driving, the circuit bag
Include：Transformer；The first metal-oxide-semiconductor and the second metal-oxide-semiconductor being respectively coupled to the both ends of the output of the transformer；With the transformer
Output both ends the first triode and the second triode that are respectively coupled to；With first triode and second triode
The 3rd metal-oxide-semiconductor being respectively coupled to and the 4th metal-oxide-semiconductor；First coupled respectively with the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor pushes away
Puller circuit and the second push-pull circuit.
In one embodiment, first push-pull circuit and second push-pull circuit include two triodes respectively.
In one embodiment, the circuit also includes：The output with first push-pull circuit and described second pushes away respectively
The first electric capacity and the second electric capacity of the output coupling of puller circuit.
In one embodiment, the circuit also includes：
The first resistor and second resistance coupled with first electric capacity and second electric capacity.
In one embodiment, the circuit also includes：
The first diode between first metal-oxide-semiconductor and the first triode；
The second diode between second metal-oxide-semiconductor and the second triode.
The circuit of a kind of DC/DC converters full-wave rectification driving provided by the invention, by using transformer secondary output level
As the drive signal of rectification metal-oxide-semiconductor, for triode as signaling switch, metal-oxide-semiconductor rapidly switches off protection, prevents from simultaneously turning on.
Its advantage is to improve the versatility and reliability of self-driving circuit, increases circuit application.
Brief description of the drawings
Fig. 1 shows a kind of circuit diagram of the circuit one side of DC/DC converters full-wave rectification driving of the present invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, it should all belong to what the present invention protected
Scope.
Fig. 1 is refer to, Fig. 1 shows a kind of circuit of DC/DC converters full-wave rectification driving of the present invention.
The circuit includes：Transformer；The first metal-oxide-semiconductor being respectively coupled to the both ends of the output of the transformer and second
Metal-oxide-semiconductor；The first triode and the second triode being respectively coupled to the both ends of the output of the transformer；With the one or three pole
The 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor that pipe and second triode are respectively coupled to；Respectively with the 3rd metal-oxide-semiconductor and described
The first push-pull circuit and the second push-pull circuit of four metal-oxide-semiconductors coupling.
In one embodiment, first push-pull circuit and second push-pull circuit include two triodes respectively.
In one embodiment, the circuit also includes：The output with first push-pull circuit and described second pushes away respectively
The first electric capacity and the second electric capacity of the output coupling of puller circuit.
In one embodiment, the circuit also includes：
The first resistor and second resistance coupled with first electric capacity and second electric capacity.
In one embodiment, the circuit also includes：
The first diode between first metal-oxide-semiconductor and the first triode；
The second diode between second metal-oxide-semiconductor and the second triode.
When T1-1 is just, T1-2 is that QD1 is high level, and QD2 is low level when bearing, and ends Q3 conductings, Q7, DG1 is
Low, DG2 is height, at this moment Q4 conductings, Q8 cut-offs.Now G1 is low level, and Q1 ends；G2 provides drive signal, Q2 for high level
Conducting.Q4 conductings ensure that even if DG1 also can reliably be ended by false triggering, Q1 when Q2 is turned on, and prevent from simultaneously turning on.
When T1-2 is just, T1-1 is that QD2 is high level, and QD1 is low level when bearing, and ends Q7 conductings, Q3, DG2 is
Low, DG1 is height, at this moment Q8 conductings, Q4 cut-offs.Now G2 is low level, and Q2 ends；G1 provides drive signal, Q1 for high level
Conducting.Q8 conductings ensure that even if DG2 also can reliably be ended by false triggering, Q2 when Q1 is turned on, and prevent from simultaneously turning on.
This circuit can reliably provide the drive signal of rectifying tube, and Q4, Q8 presence ensure that Q1, Q2 will not be simultaneously turned on.
In addition, although the present specification is described in terms of embodiments, not each embodiment is only only comprising one
Vertical technical scheme, this narrating mode of specification only for clarity, those skilled in the art should using specification as
One entirety, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that its
His embodiment.
Claims (5)
1. a kind of circuit of DC/DC converters full-wave rectification driving, it is characterised in that the circuit includes：
Transformer；
The first metal-oxide-semiconductor and the second metal-oxide-semiconductor being respectively coupled to the both ends of the output of the transformer；
The first triode and the second triode being respectively coupled to the both ends of the output of the transformer；
The 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor being respectively coupled to first triode and second triode；
The first push-pull circuit and the second push-pull circuit coupled respectively with the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor.
2. circuit as claimed in claim 1, it is characterised in that first push-pull circuit and second push-pull circuit difference
Include two triodes.
3. circuit as claimed in claim 1, it is characterised in that the circuit also includes：Respectively with first push-pull circuit
Output and second push-pull circuit output coupling the first electric capacity and the second electric capacity.
4. circuit as claimed in claim 3, it is characterised in that the circuit also includes：
The first resistor and second resistance coupled with first electric capacity and second electric capacity.
5. circuit as claimed in claim 1, it is characterised in that the circuit also includes：
The first diode between first metal-oxide-semiconductor and the first triode；
The second diode between second metal-oxide-semiconductor and the second triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900402.0A CN107612345B (en) | 2017-09-28 | 2017-09-28 | Drive circuit of full-wave rectification circuit for DC/DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900402.0A CN107612345B (en) | 2017-09-28 | 2017-09-28 | Drive circuit of full-wave rectification circuit for DC/DC converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107612345A true CN107612345A (en) | 2018-01-19 |
| CN107612345B CN107612345B (en) | 2020-04-21 |
Family
ID=61059248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900402.0A Active CN107612345B (en) | 2017-09-28 | 2017-09-28 | Drive circuit of full-wave rectification circuit for DC/DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107612345B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070097714A1 (en) * | 2005-10-31 | 2007-05-03 | Honeywell International, Inc. | DC-DC converter having synchronous rectification without cross conduction |
| CN2901771Y (en) * | 2006-05-24 | 2007-05-16 | 张建华 | Wire bundle electromagnetic heater |
| CN101345487A (en) * | 2008-05-21 | 2009-01-14 | 英飞特电子（杭州）有限公司 | Primary sampling current controlled synchronous commutation driving circuit |
| JP2009081952A (en) * | 2007-09-26 | 2009-04-16 | Yokogawa Electric Corp | Synchronous rectifier driving circuit |
| CN106849704A (en) * | 2017-03-20 | 2017-06-13 | 广州视源电子科技股份有限公司 | Synchronous rectification interlocking circuit |
-
2017
- 2017-09-28 CN CN201710900402.0A patent/CN107612345B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070097714A1 (en) * | 2005-10-31 | 2007-05-03 | Honeywell International, Inc. | DC-DC converter having synchronous rectification without cross conduction |
| CN2901771Y (en) * | 2006-05-24 | 2007-05-16 | 张建华 | Wire bundle electromagnetic heater |
| JP2009081952A (en) * | 2007-09-26 | 2009-04-16 | Yokogawa Electric Corp | Synchronous rectifier driving circuit |
| CN101345487A (en) * | 2008-05-21 | 2009-01-14 | 英飞特电子（杭州）有限公司 | Primary sampling current controlled synchronous commutation driving circuit |
| CN106849704A (en) * | 2017-03-20 | 2017-06-13 | 广州视源电子科技股份有限公司 | Synchronous rectification interlocking circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107612345B (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104935315B (en) | IGBT drive circuit | |
| CN204349431U (en) | A kind of overpressure absorbing circuit for permanent magnet DC motor | |
| CN107612345A (en) | A kind of circuit of DC/DC converters full-wave rectification driving | |
| CN102970017B (en) | A kind of one-way conduction circuit | |
| CN203896179U (en) | Drive interlocking circuit | |
| CN206004638U (en) | Nothing the ultra-thin DC solid-state relay of medium couples isolated form | |
| CN105682303B (en) | A kind of LED circuit of the single- stage PFC of double-transistor flyback | |
| CN203984384U (en) | A kind of pair of photovoltaic optocoupler drives DC solid-state relay | |
| CN105024530A (en) | Full-bridge soft switching MOS drive circuit | |
| CN202957415U (en) | Multifunctional anti-error-connection joint | |
| CN205430189U (en) | Gate driving signal transmission circuit suitable for IGBT | |
| CN204668926U (en) | A kind of IGBT drives and protective circuit | |
| CN204179650U (en) | A kind of work of series-connection power supplies lightning protection device and failure indicating circuit | |
| CN104064884B (en) | Automatic electric cable connector | |
| CN107677877A (en) | Middle-high pressure electrification indicating circuit | |
| CN203983166U (en) | Relay drive circuit | |
| CN102820789A (en) | Alternating current zero and live wire identification conversion circuit | |
| CN205945507U (en) | Parallelly connected drive circuit who uses of IGBT in high -power power | |
| CN207819551U (en) | Switching power circuit | |
| CN205847088U (en) | A kind of power circuit being applied to USB Type c expanding unit | |
| CN105024557A (en) | Power circuit for driving insulted gate bipolar transistor (IGBT) | |
| CN201622339U (en) | Full-wave zero-passing detection circuit of switch power supply | |
| CN203367982U (en) | A series battery pack electrode fracture protection circuit based on discrete elements | |
| CN204241867U (en) | A kind of power-on and power-off control device | |
| CN203377852U (en) | IGBT drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |