CN201018405Y - Whole bridge phase-shift drive circuit - Google Patents
Whole bridge phase-shift drive circuit Download PDFInfo
- Publication number
- CN201018405Y CN201018405Y CNU2007200491174U CN200720049117U CN201018405Y CN 201018405 Y CN201018405 Y CN 201018405Y CN U2007200491174 U CNU2007200491174 U CN U2007200491174U CN 200720049117 U CN200720049117 U CN 200720049117U CN 201018405 Y CN201018405 Y CN 201018405Y
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Abstract
The utility model discloses a full-bridge phase-shifting drive circuit which is intended to provide a full-bridge phase-shifting drive circuit which reduces the power consumption of a switch tube and doesn't damage a switch module under the common conduction of the switch tube. The utility model comprises a drive push circuit (1), a drive isolation transformer (2), an I drive output circuit (3) and a II drive output circuit (4); wherein a primary winding of the drive isolation transformer (2) is provided with a centre tap, the centre tap is earthed, a secondary winding of the drive isolation transformer (2) is two symmetric windings, and the input ends of the I drive output circuit (3) and the II drive output circuit (4) are respectively correspondingly connected with the two secondary windings of the drive isolation transformer (2) and the homonymous and synonymous ends are mutually opposite in order to make the formed whole drive circuit become the push-pull mode. The utility model can be widely used in the full-bridge phase-shifting soft switch circuit.
Description
Technical field
The utility model relates to a kind of full-bridge phase shifting drive circuit.
Background technology
In full-bridge phase-shift soft switch circuit in the past, all can exist because the unloaded or big situation of power consumption little year the time, one of its reason is all to be easy to satisfy the switch condition of leading wall no-voltage during any resonant circuit and the switch condition of the no-voltage of hysteresis bridge wall just is difficult to satisfy in design, the bridge wall switch loss that causes lagging behind is very big, this mainly is can not accomplish complete zero voltage switch at little year time lag back axle wall, belong to the hard switching state, certain switching loss is arranged, and be to have caused the switching tube lightly conducting owing to hysteresis bridge wall switch pipe has produced concussion in switching process in addition greatly, also can add lossy, and be easy to make the common conducting of switching tube and cause module damage
In the past in the switching process of full-bridge phase shifting converter lagging leg switching tube, transformer is in short-circuit condition, therefore the energy that participates in resonance is very little, cause losing the zero-pressure condition, by one section of the visible transformer zero level of test waveform a small embossment (also can be described as concussion) is arranged, really be not zero, because lagging leg does not realize that zero-pressure is open-minded, not only caused the decline of efficient, and when the diode of switching tube is also oppositely recovering, the conducting of another switching tube, then there is straight-through possibility in two switching tubes, the result is that input voltage all is added on the power tube, has caused the common conducting of switching tube, thereby damages switch module.
In sum, the present full-bridge phase shifting converter circuit that uses in the prior art, thereby exist unloaded or little year the time power consumption caused the common conducting of switching tube to damage the defective of switch module greatly, easily.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of and reduces the switching tube power consumption, can not cause the common conducting of switching tube and damage the full-bridge phase shifting drive circuit of switch module.
The technical scheme that the utility model adopted is: the utility model comprises that driving promotes circuit, drive isolating transformer, I drives output circuit and II drives output circuit, the elementary winding of described driving isolating transformer has centre cap, described centre cap ground connection, the secondary winding of described driving isolating transformer is two windings of symmetry, described driving promotes the input of circuit and the output point A of circuit external drive chip, B links to each other, the output that described driving promotes circuit links to each other with the two ends of the elementary winding of described driving isolating transformer, two secondary winding of described driving isolating transformer drive corresponding connection of input of output circuit and described II driving output circuit respectively with described I, it is identical with the circuit that described II drives output circuit that described I drives output circuit, it is same when described I driving output circuit is connected with two secondary winding of described driving isolating transformer with described II driving output circuit, the different name end is opposite each other, constitutes whole drive circuit and is the form of recommending.
Described driving promotes circuit and comprises two switching tube S1, S2 and two commissure resistance and two shunt resistances, the base stage of described two switching tube S1, S2 is connected to output point A, the B end of the outer chip for driving of this circuit respectively by commissure resistance, the emitter-base bandgap grading of described two switching tube S1, S2 is connected to this circuit ground end by shunt resistance respectively, and the collector electrode of described two switching tube S1, S2 links to each other with the two ends of the elementary winding of described driving isolating transformer respectively.
Described I drives output circuit and described II driving output circuit is a same circuits, include triode Q, two diode D1, D2, two voltage-stabiliser tube W1, W2, capacitor C, four resistance R 1, R2, R3, R4 and power switch tube S, described resistance R 1 is in parallel with described diode D1, the anodal end that connects the secondary winding of described driving isolating transformer of described diode D1, the other end of the secondary winding of described driving isolating transformer connects the base stage of negative pole and the triode Q of described diode D2, the positive pole of described diode D2 is connected with the emitter of described triode, one end of described resistance R 4, the negative pole of described voltage stabilizing didoe W2, the emitter of described power switch pipe, the negative pole of described diode D1 is connected with an end of described resistance R 2, one end of described capacitor C, described triode Q collector electrode, the other end of described resistance R 2 connects the base stage of described triode Q, the other end of described capacitor C connects an end of described resistance R 3, the other end of described resistance R 3 is connected with an end of described resistance R 4, the negative pole of described voltage stabilizing didoe W1, the base stage of described power switch pipe, the other end of described resistance R 4 connects the negative pole of described voltage stabilizing didoe W2, and the positive pole of described voltage stabilizing didoe W1 is connected with the positive pole of described voltage stabilizing didoe W2.
The beneficial effects of the utility model are: promote circuit because the utility model comprises driving, drive isolating transformer, I drives output circuit and II drives output circuit, the elementary winding of described driving isolating transformer has centre cap, described centre cap ground connection, the secondary winding of described driving isolating transformer comprises two windings of symmetry, described driving promotes the input of circuit and the output point A of circuit external drive chip, B links to each other, the output that described driving promotes circuit links to each other with the two ends of the elementary winding of described driving isolating transformer, two secondary winding of described driving isolating transformer respectively with the corresponding connection of input (I drives output circuit and II drives output circuit) of identical two driving output circuits, it is same when two secondary winding of described driving isolating transformer are connected with the input of two driving output circuits, the different name end is opposite each other, make the whole drive circuit of formation be the form of recommending, so have the switching tube of reduction power consumption, can not cause the common conducting of switching tube and damaged the advantage of switch module.
Description of drawings
Fig. 1 is the utility model electrical block diagram.
Embodiment
As shown in Figure 1, the utility model comprises that driving promotes circuit 1, drive isolating transformer 2, I drives output circuit 3 and II drives output circuit 4, the elementary winding of described driving isolating transformer 2 has centre cap, described centre cap ground connection, the secondary winding of described driving isolating transformer is two windings of symmetry, described driving promotes the input of circuit 1 and the output point A of circuit external drive chip, B links to each other, the output that described driving promotes circuit 1 links to each other with the two ends of the elementary winding of described driving isolating transformer 2, two secondary winding of described driving isolating transformer 2 drive corresponding connection of input of output circuit 3 and II driving output circuit 4 respectively with described I, it is identical with the circuit that drives output circuit 4 to drive output circuit 3, same when being connected with two secondary winding of described driving isolating transformer 2, the different name end is opposite each other, makes the whole drive circuit of formation be the form of recommending.
Described driving promotes circuit 1 and comprises two switching tube S1, S2 and two commissure resistance and two shunt resistances, the base stage of described two switching tube S1, S2 is connected to output point A, the B end of the outer chip for driving of this circuit respectively by commissure resistance, the emitter-base bandgap grading of described two switching tube S1, S2 is connected to this circuit ground end by shunt resistance respectively, and the collector electrode of described two switching tube S1, S2 links to each other with the two ends of the elementary winding of described driving isolating transformer 2 respectively.
I drives output circuit 3 and II driving output circuit 4 includes triode Q, two diode D1, D2, two voltage-stabiliser tube W1, W2, capacitor C, four resistance R 1, R2, R3, R4 and power switch tube S, described resistance R 1 is in parallel with described diode D1, the anodal end that connects the secondary winding of described driving isolating transformer 2 of described diode D1, the other end of the secondary winding of described driving isolating transformer 2 connects the base stage of negative pole and the triode Q of described diode D2, the positive pole of described diode D2 is connected with the emitter of described triode, one end of described resistance R 4, the negative pole of described voltage stabilizing didoe W2, the emitter of described power switch pipe, the negative pole of described diode D1 is connected with an end of described resistance R 2, one end of described capacitor C, described triode Q collector electrode, the other end of described resistance R 2 connects the base stage of described triode Q, the other end of described capacitor C connects an end of described resistance R 3, the other end of described resistance R 3 is connected with an end of described resistance R 4, the negative pole of described voltage stabilizing didoe W1, the base stage of described power switch pipe, the other end of described resistance R 4 connects the negative pole of described voltage stabilizing didoe W2, and the positive pole of described voltage stabilizing didoe W1 is connected with the positive pole of described voltage stabilizing didoe W2.
Circuit working principle: A, 2 of B connect the driving output of the same bridge wall of chip for driving, two switching tube S1, S2 forms the push-pull circuit of drive circuit, the isolation of drive signal process isolating transformer is exported in drive waveforms that secondary hot junction produced and type of drive in the past and is had no difference, it is a waveform that positive negative pulse stuffing and zero dead band are arranged, and by a diode negative part is reamed, negative pole at D1 makes it become the drive signal having only positive pulse and do not have negative pulse, by a capacitor C its translation under, allow it that the negative value of certain amplitude is arranged, directly pulled down to certain negative value at the driving turn off process like this, rather than will be through the zero level in dead band, before coming, sentences next pulse negative drive (comprising Dead Time) always, other one group of driving of it and same bridge wall does not simultaneously intersect at zero crossing and dead band, do not have overlapping, can the phase mutual interference, when switching tube is turn-offed, driving pulse is not to get back to earlier to pull down to negative pulse again through the dead band again zero point as in the past, but driving pulse directly pulled down to certain amplitude negative value, this negative value necessarily is higher than the threshold level that switching tube is opened, and said small embossment (concussion) above when switching tube turn-offs, just can not producing between DS like this, because GS is negative value and without the zero passage dead band below zero level by instantaneous clamper, can not cause the conducting once more of switching tube, this just greatly reduces the power consumption of switching tube (promptly above seen small embossment), simultaneously also good restraining because the common conducting of switching tube that concussion and interference cause damages switch module.
Claims (3)
1. full-bridge phase shifting drive circuit, comprise driving and promote circuit (1), drive isolating transformer (2), I drives output circuit (3) and II drives output circuit (4), it is characterized in that: the elementary winding of described driving isolating transformer (2) has centre cap, described centre cap ground connection, the secondary winding of described driving isolating transformer (2) is two windings of symmetry, described driving promotes the input of circuit (1) and the output point A of circuit external drive chip, B links to each other, the output that described driving promotes circuit (1) links to each other with the two ends of the elementary winding of described driving isolating transformer (2), two secondary winding of described driving isolating transformer (2) drive corresponding connection of input of output circuit (3) and described II driving output circuit (4) respectively with described I, it is identical with the circuit that described II drives output circuit (4) that described I drives output circuit (3), it is same when described I driving output circuit (3) is connected with two secondary winding of described driving isolating transformer (2) with described II driving output circuit (4), the different name end is opposite each other, constitutes whole drive circuit and is the form of recommending.
2. full-bridge phase shifting drive circuit according to claim 1, it is characterized in that: described driving promotes circuit (1) and comprises two switching tube S1, S2 and two commissure resistance and two shunt resistances, the base stage of described two switching tube S1, S2 is connected to output point A, the B end of the outer chip for driving of this circuit respectively by commissure resistance, the emitter-base bandgap grading of described two switching tube S1, S2 is connected to this circuit ground end by shunt resistance respectively, and the collector electrode of described two switching tube S1, S2 links to each other with the two ends of the elementary winding of described driving isolating transformer (2) respectively.
3. full-bridge phase shifting drive circuit according to claim 1, it is characterized in that: described I drives output circuit (3) and described II driving output circuit (4) is same circuits, include triode Q, two diode D1, D2, two voltage-stabiliser tube W1, W2, capacitor C, four resistance R 1, R2, R3, R4 and power switch tube S, described resistance R 1 is in parallel with described diode D1, the anodal end that connects the secondary winding of described driving isolating transformer (2) of described diode D1, the other end of the secondary winding of described driving isolating transformer (2) connects the base stage of negative pole and the triode Q of described diode D2, the positive pole of described diode D2 is connected with the emitter of described triode, one end of described resistance R 4, the negative pole of described voltage stabilizing didoe W2, the emitter of described power switch pipe, the negative pole of described diode D1 is connected with an end of described resistance R 2, one end of described capacitor C, described triode Q collector electrode, the other end of described resistance R 2 connects the base stage of described triode Q, the other end of described capacitor C connects an end of described resistance R 3, the other end of described resistance R 3 is connected with an end of described resistance R 4, the negative pole of described voltage stabilizing didoe W1, the base stage of described power switch pipe, the other end of described resistance R 4 connects the negative pole of described voltage stabilizing didoe W2, and the positive pole of described voltage stabilizing didoe W1 is connected with the positive pole of described voltage stabilizing didoe W2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491174U CN201018405Y (en) | 2007-03-09 | 2007-03-09 | Whole bridge phase-shift drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200491174U CN201018405Y (en) | 2007-03-09 | 2007-03-09 | Whole bridge phase-shift drive circuit |
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| Publication Number | Publication Date |
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| CN201018405Y true CN201018405Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200491174U Expired - Fee Related CN201018405Y (en) | 2007-03-09 | 2007-03-09 | Whole bridge phase-shift drive circuit |
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| CN (1) | CN201018405Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066814A (en) * | 2011-10-24 | 2013-04-24 | 中兴通讯股份有限公司 | Isolated drive circuit |
| CN103107683A (en) * | 2011-11-09 | 2013-05-15 | 上海施能电器设备厂 | Half bridge driving circuit of power tube |
| CN105896955A (en) * | 2016-04-15 | 2016-08-24 | 深圳市鹏源电子有限公司 | Driving device of power switch tube |
| CN106300931A (en) * | 2016-09-30 | 2017-01-04 | 许继电源有限公司 | A kind of numerical control and simulation hybrid driving circuit structure |
| CN104269997B (en) * | 2014-10-11 | 2017-09-26 | 南京航空航天大学 | A kind of adjustable transformer isolation complementary drive circuit in dead band |
| CN107809177A (en) * | 2017-09-25 | 2018-03-16 | 南京航空航天大学 | A kind of adjustable drive circuit of isolated form output voltage |
| CN109450263A (en) * | 2018-10-29 | 2019-03-08 | 南京航空航天大学 | One kind recommending mode of resonance driving circuit and its control method |
| CN111917306A (en) * | 2020-08-21 | 2020-11-10 | 苏州浪潮智能科技有限公司 | Power switch switching drive circuit and method based on LLC |
-
2007
- 2007-03-09 CN CNU2007200491174U patent/CN201018405Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066814A (en) * | 2011-10-24 | 2013-04-24 | 中兴通讯股份有限公司 | Isolated drive circuit |
| CN103066814B (en) * | 2011-10-24 | 2016-07-27 | 中兴通讯股份有限公司 | A kind of isolated drive circuit |
| CN103107683A (en) * | 2011-11-09 | 2013-05-15 | 上海施能电器设备厂 | Half bridge driving circuit of power tube |
| CN104269997B (en) * | 2014-10-11 | 2017-09-26 | 南京航空航天大学 | A kind of adjustable transformer isolation complementary drive circuit in dead band |
| CN105896955A (en) * | 2016-04-15 | 2016-08-24 | 深圳市鹏源电子有限公司 | Driving device of power switch tube |
| CN105896955B (en) * | 2016-04-15 | 2019-02-05 | 深圳市鹏源电子有限公司 | The driving device of power switch tube |
| CN106300931A (en) * | 2016-09-30 | 2017-01-04 | 许继电源有限公司 | A kind of numerical control and simulation hybrid driving circuit structure |
| CN107809177A (en) * | 2017-09-25 | 2018-03-16 | 南京航空航天大学 | A kind of adjustable drive circuit of isolated form output voltage |
| CN109450263A (en) * | 2018-10-29 | 2019-03-08 | 南京航空航天大学 | One kind recommending mode of resonance driving circuit and its control method |
| CN111917306A (en) * | 2020-08-21 | 2020-11-10 | 苏州浪潮智能科技有限公司 | Power switch switching drive circuit and method based on LLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Superior Collyer Energy Equipment Co., Ltd. Assignor: Zhuhai Titans Technology Co., Ltd. Contract record no.: 2010110000169 Denomination of utility model: Full-bridge phase-shift driving circuit Granted publication date: 20080206 License type: Exclusive License Record date: 20101008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20140309 |