CN104065269A - Double forward converter circuit - Google Patents
Double forward converter circuit Download PDFInfo
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- CN104065269A CN104065269A CN201310089216.5A CN201310089216A CN104065269A CN 104065269 A CN104065269 A CN 104065269A CN 201310089216 A CN201310089216 A CN 201310089216A CN 104065269 A CN104065269 A CN 104065269A
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- positive pole
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Abstract
The invention discloses a double forward converter circuit comprising a capacitor, an inductor, a resistor, a first transformer, a second transformer, a first switch, a second switch, a third switch, a fourth switch, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode, a seventh diode and an eighth diode. The voltage positive electrode input end is respectively connected with the negative electrode of the first diode, the negative electrode of the third diode, the first end of the first switch and the first end of the third switch. The voltage negative electrode input end is respectively connected with the positive electrode of the second diode, the positive electrode of the fourth diode, the first end of the second switch and the first end of the fourth switch. According to the double forward converter circuit, power and output frequency of a converter are increased via parallel connection of two forward conversion circuits, and highest safety and working state stability can be achieved.
Description
Technical field
The present invention relates to a kind of converter circuit, relate in particular to a kind of pair of forward converter circuit.
Background technology
Power pack is a kind of closed transformer without air gap unshakable in one's determination.Advantage is when unshakable in one's determination when unsaturated, and secondary current waveform is with once identical.Shortcoming is easily saturated under the effect of electric current aperiodic component, poor linearity, the general power pack that adopts in Microcomputer Protection.In forming loop to the voltage of input current, microcomputer protecting device to use this equipment.In the concrete application of DC converter, inverse excitation type converter and forward converter occupy majority.Power pack in the market exists that power is not high, the shortcoming of unstable working condition.
Summary of the invention
A kind of reliability is high, power output is high, two forward converter circuit of stable working state with regard to being to provide in order to address the above problem for object of the present invention.
In order to achieve the above object, the present invention has adopted following technical scheme:
A pair forward converter circuit, comprises electric capacity, inductance, resistance, the first transformer, the second transformer, the first switch, second switch, the 3rd switch, the 4th switch, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode and the 8th diode, positive polarity input respectively with the negative pole of described the first diode, the negative pole of described the 3rd diode, the first end of described the first switch is connected with the first end of described the 3rd switch, voltage negative input respectively with the positive pole of described the second diode, the positive pole of described the 4th diode, the first end of described second switch is connected with the first end of described the 4th switch, the second end of described the first switch is connected with the negative pole of described the second diode with the first end of a winding of described the first transformer respectively, the positive pole of described the first diode is connected with the second end of a winding and second end of described second switch of described the first transformer respectively, the second end of described the 3rd switch is connected with the negative pole of described the 4th diode with the first end of a winding of described the second transformer respectively, the positive pole of described the 3rd diode is connected with the second end of described the 4th switch with the second end of a winding of described the second transformer respectively, the first end of the secondary winding of described the first transformer is connected with the positive pole of described the 5th diode, the second end of the secondary winding of described the first transformer respectively with the positive pole of described the 6th diode, the first end of described electric capacity, the first end of described resistance, the positive pole of described the 8th diode is connected with the first end of the secondary winding of described the second transformer, the negative pole of described the 5th diode respectively with the negative pole of described the 6th diode, the first end of described inductance, the negative pole of described the 7th diode is connected with the negative pole of described the 8th diode, the second end of described inductance is connected with the second end of described electric capacity and the second end of described resistance respectively, and the second end of the secondary winding of described the second transformer is connected with the positive pole of described the 7th diode.
Beneficial effect of the present invention is:
The two forward converter circuit of the present invention, increase the increase of output power of converter, output frequency by the parallel connection of two positive activation type translation circuits, and fail safe and stability under working conditions reach the highest.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the two forward converter circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of pair of forward converter circuit of the present invention, comprises capacitor C, inductance L, resistance R, the first transformer T1, the second transformer T2, the first switch S 1, second switch S2, the 3rd switch S 3, the 4th switch S 4, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 7th diode D7 and the 8th diode D8, positive polarity input respectively with the negative pole of the first diode D1, the negative pole of the 3rd diode D3, the first end of the first switch S 1 is connected with the first end of the 3rd switch S 3, voltage negative input respectively with the positive pole of the second diode D2, the positive pole of the 4th diode D4, the first end of second switch S2 is connected with the first end of the 4th switch S 4, the second end of the first switch S 1 is connected with the negative pole of the second diode D2 with the first end of a winding of the first transformer T1 respectively, the positive pole of the first diode D1 is connected with the second end of a winding and the second end of second switch S2 of the first transformer T1 respectively, the second end of the 3rd switch S 3 is connected with the negative pole of the 4th diode D4 with the first end of a winding of the second transformer T2 respectively, the positive pole of the 3rd diode D3 is connected with the second end of the 4th switch S 4 with the second end of a winding of the second transformer T2 respectively, the first end of the secondary winding of the first transformer T1 is connected with the positive pole of the 5th diode D5, the second end of the secondary winding of the first transformer T1 respectively with the positive pole of the 6th diode D6, the first end of capacitor C, the first end of resistance R, the positive pole of the 8th diode D8 is connected with the first end of the secondary winding of the second transformer T2, the negative pole of the 5th diode D5 respectively with the negative pole of the 6th diode D6, the first end of inductance L, the negative pole of the 7th diode D7 is connected with the negative pole of the 8th diode D8, and the second end of inductance L is connected with the second end of capacitor C and the second end of resistance R respectively, and the second end of the secondary winding of the second transformer T2 is connected with the positive pole of the 7th diode D7.
Claims (1)
1. two forward converter circuit, is characterized in that: comprise electric capacity, inductance, resistance, the first transformer, the second transformer, the first switch, second switch, the 3rd switch, the 4th switch, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode and the 8th diode, positive polarity input respectively with the negative pole of described the first diode, the negative pole of described the 3rd diode, the first end of described the first switch is connected with the first end of described the 3rd switch, voltage negative input respectively with the positive pole of described the second diode, the positive pole of described the 4th diode, the first end of described second switch is connected with the first end of described the 4th switch, the second end of described the first switch is connected with the negative pole of described the second diode with the first end of a winding of described the first transformer respectively, the positive pole of described the first diode is connected with the second end of a winding and second end of described second switch of described the first transformer respectively, the second end of described the 3rd switch is connected with the negative pole of described the 4th diode with the first end of a winding of described the second transformer respectively, the positive pole of described the 3rd diode is connected with the second end of described the 4th switch with the second end of a winding of described the second transformer respectively, the first end of the secondary winding of described the first transformer is connected with the positive pole of described the 5th diode, the second end of the secondary winding of described the first transformer respectively with the positive pole of described the 6th diode, the first end of described electric capacity, the first end of described resistance, the positive pole of described the 8th diode is connected with the first end of the secondary winding of described the second transformer, the negative pole of described the 5th diode respectively with the negative pole of described the 6th diode, the first end of described inductance, the negative pole of described the 7th diode is connected with the negative pole of described the 8th diode, the second end of described inductance is connected with the second end of described electric capacity and the second end of described resistance respectively, and the second end of the secondary winding of described the second transformer is connected with the positive pole of described the 7th diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089216.5A CN104065269A (en) | 2013-03-20 | 2013-03-20 | Double forward converter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310089216.5A CN104065269A (en) | 2013-03-20 | 2013-03-20 | Double forward converter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104065269A true CN104065269A (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310089216.5A Pending CN104065269A (en) | 2013-03-20 | 2013-03-20 | Double forward converter circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104065269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964397A (en) * | 2016-11-01 | 2019-07-02 | 三菱电机株式会社 | Power conversion device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431760A (en) * | 2003-01-27 | 2003-07-23 | 浙江大学 | Dual positive excitated DC-DC power transfer device with soft switch in three electrical levels |
| CN102341950A (en) * | 2009-03-06 | 2012-02-01 | 伊利诺斯工具制品有限公司 | Battery charger using phase shift double forward converting circuit |
| JP2012165492A (en) * | 2011-02-03 | 2012-08-30 | Shindengen Electric Mfg Co Ltd | Double forward dc/dc converter |
| CN203180778U (en) * | 2013-03-20 | 2013-09-04 | 成都世旗电子科技有限公司 | Double-forward converter circuit |
-
2013
- 2013-03-20 CN CN201310089216.5A patent/CN104065269A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431760A (en) * | 2003-01-27 | 2003-07-23 | 浙江大学 | Dual positive excitated DC-DC power transfer device with soft switch in three electrical levels |
| CN102341950A (en) * | 2009-03-06 | 2012-02-01 | 伊利诺斯工具制品有限公司 | Battery charger using phase shift double forward converting circuit |
| JP2012165492A (en) * | 2011-02-03 | 2012-08-30 | Shindengen Electric Mfg Co Ltd | Double forward dc/dc converter |
| CN203180778U (en) * | 2013-03-20 | 2013-09-04 | 成都世旗电子科技有限公司 | Double-forward converter circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109964397A (en) * | 2016-11-01 | 2019-07-02 | 三菱电机株式会社 | Power conversion device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140924 |