CN205039692U - Zero voltage conversion drive and control circuit of compound ZVT that steps down steps up - Google Patents
Zero voltage conversion drive and control circuit of compound ZVT that steps down steps up Download PDFInfo
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- CN205039692U CN205039692U CN201520641638.3U CN201520641638U CN205039692U CN 205039692 U CN205039692 U CN 205039692U CN 201520641638 U CN201520641638 U CN 201520641638U CN 205039692 U CN205039692 U CN 205039692U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model provides a zero voltage conversion drive and control circuit of compound ZVT that steps down steps up. Zero voltage conversion circuit is more advance in all topologys of soft switch, and is different with topologys such as hard switch, quasi -resonance, zero switches, and resonance circuit is parallelly connected with the main switch among zero converting circuit, can make resonance circuit diminished by load and input voltage's influence like this, make the circuit in the input voltage wide region and the load arrive and be fully loaded with homoenergetic work in soft on off state. This circuit comprises topological basically, drive module circuit, digital controller module circuit, supplementary part (various measuring feedback signal, supplementary driving voltage ). Digital controller module by STM8 or STM32 singlechip are constituteed comes control adjustment to be sent to 6 way PWM in the pressure topology according to the voltage of gathering on the lower extreme resistance among the series resistance bleeder circuit. The utility model discloses there are three kinds of mode: the mode of stepping up, step -down mode and critical mode.
Description
Technical field
The new development of soft switch technique, along with the development of power electronic technology, trends towards miniaturization, high efficiency to the requirement of power electronic equipment at present further.Zero voltage transition circuit is more advanced in all topologys of Sofe Switch, higher than conventional BUCK, BOOST efficiency.
Background technology
Topological different from hard switching, quasi-resonance, zero switch etc., in zero change-over circuit, resonant circuit is in parallel with main switch, resonant circuit can be made like this to diminish by the impact of load and input voltage, make circuit in input voltage wide region and load to be fully loaded with all can work in Sofe Switch state.But less for this kind of ZVT Zero voltage transition circuit control chip, control method is more complicated than hard switching BUCK, BOOST non-isolated.This circuit is to producing in the case.
Summary of the invention
This circuit is made up of basic topology, driver module circuit, digitial controller modular circuit, slave part (various detection feedback signal, process auxiliary drive voltage).In accompanying drawing, the combined type buck/boost buck topology of Fig. 3 is basic topology of the present utility model, is the voltage detecting circuit of driver module circuit of the present utility model, digitial controller modular circuit and feedback signal in Fig. 4.
In the utility model basic topology circuit, some electronic power switch device place indicates " switching tube can be economized " and refers to when some low-voltage output in order to high conversion efficiency needs topology conversion to become synchronous rectification form, but when some high voltage exports, the electron electric power switching device that these indicate " switching tube can be economized " can be saved.
The electron electric power switching device of a diode and an electric capacity has been connect in the utility model basic topology circuit, be the main switching device in topology, to open on device main and connect the resonant circuit be together in series by an auxiliary switch device and an inductance, resonant circuit can be made like this to diminish by the impact of load and input voltage, make circuit in input voltage wide region and load to be fully loaded with all can work in Sofe Switch state.So each main switching device in topology has an auxiliary switch device to work together, combined type buck/boost buck topology of the present utility model has two masters to open device and two auxiliary switch devices, other two electron electric power switching devices in circuit are for work when synchronous rectification, can save, so combined type buck/boost buck topology of the present utility model has 6 electron electric power switching device time-sharing works when the most complicated, Fig. 4 is driving of the present utility model, control circuit.
Accompanying drawing explanation
Fig. 1 is the ZVT-PWM Zero voltage transition circuit of BUCK step-down, is the first half part of the utility model basic topology.
Fig. 2 is the ZVT-PWM Zero voltage transition circuit of BOOST boosting, is the later half part of the utility model basic topology.
Fig. 3 is the ZVT-PWM Zero voltage transition circuit of combined type buck/boost buck, is basic topology of the present utility model.
Fig. 4 is driver module circuit, digital control chip circuit, auxiliary circuit part.
Embodiment
Input DC power positive pole VIN is connected to a main switching device D pole after being connected to a filter capacitor, main switching device D, S extremely goes up and has connect an electric capacity and an anti-phase diode, master opens device D, S pole also and connect the resonant circuit be composed in series by auxiliary switch device and resonant inductance, in resonant circuit, auxiliary switch device and resonant inductance series connection node place are connected to a diode cathode, diode anode is connected to input DC power negative pole GND, main switching device S pole is connected with the D pole of a switching tube with the negative electrode of a diode again, the anode of diode is connected with the GND of power supply with switching tube S pole, the S pole of main switching device is connected to power inductance one end, the other end of power inductance is connected to the D pole of another main switching device, the negative electrode of a diode and an electric capacity one end, the S pole of main switching device, the anode of diode and the other end of electric capacity are connected to the GND of power supply, the D of main switching device, S extremely equally also and connect the resonant circuit be composed in series by auxiliary switch device and resonant inductance, in resonant circuit, auxiliary switch device and resonant inductance series connection node place are connected to a diode anode, the negative electrode of diode is connected to the positive pole output VOUT of power supply, the D pole of main switch is connected to the anode of a diode and the D pole of a switching tube, the positive pole that the negative electrode of diode and the S pole of switching tube are connected to power supply exports VOUT, to export between VOUT and GND at the positive pole of power supply and connect a filter capacitor.Power inductance is the boundary (referring to Fig. 1, Fig. 2) of forward and backward half part of basic topology, is divided be combined into combined type buck/boost buck topology (Fig. 3) of the present utility model by forward and backward two half portion.
Two main switching devices in basic topology of the present utility model (Fig. 3) all and connect anti-phase two poles, an electric capacity and a resonant circuit be composed in series by auxiliary switch device and resonant inductance, before the main switching device of two in circuit does not also have conducting, the auxiliary switch device that conducting is connected with series inductance, voltage on two main switching devices is reduced to zero, reduce to zero rear two main switching device conductings again, be exactly that no-voltage is opened, when after two main switching device conductings, auxiliary switch device is closed again, the energy of resonant circuit also discharges to power supply in this stage, can embody than conventional hard-switched topologies efficiency higher position.Simultaneously again because resonant circuit is attempted by two main switching devices, resonant circuit is diminished by the impact of load and input voltage, circuit is in input voltage wide region and load to and fully loaded all can work in Sofe Switch state, and the soft switch topology of this quasi-resonance than routine, complex resonance, phase shift zero switch is outstanding.
Basic topology of the present utility model (Fig. 3) has 6 switching devices and is operated on off state when the most complicated, need 6 road pwm signals, the digitial controller module be made up of STM8 or STM32 single-chip microcomputer produces (see Fig. 4), and the PWM of generation just can promote 6 switching devices in the utility model basic topology after the power ascension of driver module.In some cases, different power electronic component requires that driver module needs three groups of direct voltages VCC-1, VCC-2, VCC-3 isolating each other.
Output dc voltage VOUT and the GND of basic topology of the present utility model (Fig. 3) connects two mutual series resistances, the digitial controller module (see Fig. 4) be made up of STM8 or STM32 single-chip microcomputer detects the ohmically magnitude of voltage in lower end, and the software program run in STM8 or STM32 single-chip microcomputer carries out adjusting 6 road PWM in real time according to the voltage signal collected on resistance.
A main switching device in forward and backward half part of basic topology of the present utility model (Fig. 3) and a switching device indicating " switching tube can be economized " are operated in complementary state, at any time, main switching device can only be a conducting with the switching device indicating " switching tube can be economized ", another is closed, can not conducting simultaneously.
Three kinds of mode of operations are had: boost mode, decompression mode and critical conduction mode in basic topology of the present utility model (Fig. 3).When decompression mode, first half part normally works (referring to Fig. 1) by buck topology mode, main switching device in later half part, the auxiliary switch device of connecting with resonant inductance are all in closedown, and the switching device indicating " switching tube can be economized " can be closed in conducting.When boost mode, later half part normally works (referring to Fig. 2) by boost topology mode, main switching device in first half part is in conducting state always, the auxiliary switch device of connecting with resonant inductance can conducting can close also can on off state, the switching device indicating " switching tube can be economized " is in closed condition always.When critical conduction mode, first half part works (referring to Fig. 1) by buck topology mode, later half part works (referring to Fig. 2) by boost topology mode, be no matter step-down when changing to boost conversion or boosting to step-down, the main switching device in first half part is longer than the ON time of the main switching device in later half part.
All all electron electric power switching devices being operated on off state device and all referring to be closed to control conducting by pwm signal in basic topology of the present utility model (Fig. 3), in order to the connection of circuit can be described, it is metal-oxide-semiconductor that accompanying drawing marks, and its three pins are G, D, S.
Claims (2)
1. a voltage raising and reducing compound ZVT Zero voltage transition Drive and Control Circuit, it is characterized in that: input DC power positive pole VIN is connected to a main switching device D pole after being connected to a filter capacitor, main switching device D, S extremely goes up and has connect an electric capacity and an anti-phase diode, master opens device D, S pole also and connect the resonant circuit be composed in series by auxiliary switch device and resonant inductance, auxiliary switch device and resonant inductance series connection node place are connected to a diode cathode, diode anode is connected to input DC power negative pole GND, main switching device S pole is connected with the D pole of a switching tube with the negative electrode of a diode again, the anode of diode is connected with the GND of power supply with switching tube S pole, the S pole of main switching device is connected to power inductance one end, the other end of power inductance is connected to the D pole of another main switching device, the negative electrode of a diode and an electric capacity one end, the S pole of main switching device, the anode of diode and the other end of electric capacity are connected to the GND of power supply, the D of main switching device, S extremely equally also and connect the resonant circuit be composed in series by auxiliary switch device and resonant inductance, auxiliary switch device and resonant inductance series connection node place are connected to a diode anode, the negative electrode of diode is connected to the positive pole output VOUT of power supply, the D pole of main switch is connected to the anode of a diode and the D pole of a switching tube, the positive pole that the negative electrode of diode and the S pole of switching tube are connected to power supply exports VOUT, to export between VOUT and GND at the positive pole of power supply and connect a filter capacitor and a resistant series bleeder circuit become by two resistant series, the digitial controller module be made up of STM8 or STM32 single-chip microcomputer produces PWM after driver module, controls 6 electron electric power switching devices in buck topological circuit respectively, described digitial controller module controls to adjust according to the ohmically voltage in lower end gathered in resistant series bleeder circuit the 6 road PWM be sent in buck topology.
2. voltage raising and reducing according to claim 1 compound ZVT Zero voltage transition Drive and Control Circuit, is characterized in that: the conducting more first than main switching device of the auxiliary switch device in resonant circuit, after main switching device conducting, auxiliary switch device is closed again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641638.3U CN205039692U (en) | 2015-08-25 | 2015-08-25 | Zero voltage conversion drive and control circuit of compound ZVT that steps down steps up |
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| CN201520641638.3U CN205039692U (en) | 2015-08-25 | 2015-08-25 | Zero voltage conversion drive and control circuit of compound ZVT that steps down steps up |
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| CN205039692U true CN205039692U (en) | 2016-02-17 |
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| CN201520641638.3U Expired - Fee Related CN205039692U (en) | 2015-08-25 | 2015-08-25 | Zero voltage conversion drive and control circuit of compound ZVT that steps down steps up |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130348A (en) * | 2016-06-29 | 2016-11-16 | 上海交通大学 | Realize the auxiliary circuit of Sofe Switch and the buck translation circuit with this auxiliary circuit |
| CN106992698A (en) * | 2017-05-04 | 2017-07-28 | 厦门其力电子科技有限公司 | A kind of module for power supply circuit with double-mode |
| CN107302309A (en) * | 2016-04-15 | 2017-10-27 | 德州仪器公司 | Method and apparatus during adaptometer for zero voltage transition power converter |
| CN107404229A (en) * | 2016-04-14 | 2017-11-28 | 德州仪器公司 | Method and apparatus during adaptometer for zero voltage transition power converter |
| TWI692185B (en) * | 2019-10-31 | 2020-04-21 | 宏碁股份有限公司 | Boost converter |
-
2015
- 2015-08-25 CN CN201520641638.3U patent/CN205039692U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404229A (en) * | 2016-04-14 | 2017-11-28 | 德州仪器公司 | Method and apparatus during adaptometer for zero voltage transition power converter |
| CN107404229B (en) * | 2016-04-14 | 2020-11-24 | 德州仪器公司 | Method and apparatus for adaptive timing of zero voltage transition power converters |
| US11038421B2 (en) | 2016-04-14 | 2021-06-15 | Texas Instruments Incorporated | Methods and apparatus for adaptive timing for zero voltage transition power converters |
| CN107302309A (en) * | 2016-04-15 | 2017-10-27 | 德州仪器公司 | Method and apparatus during adaptometer for zero voltage transition power converter |
| CN107302309B (en) * | 2016-04-15 | 2020-11-24 | 德州仪器公司 | Method and apparatus for adaptive timing of zero voltage transition power converters |
| CN106130348A (en) * | 2016-06-29 | 2016-11-16 | 上海交通大学 | Realize the auxiliary circuit of Sofe Switch and the buck translation circuit with this auxiliary circuit |
| CN106130348B (en) * | 2016-06-29 | 2019-09-27 | 上海交通大学 | Realize the auxiliary circuit of Sofe Switch and the buck translation circuit with the auxiliary circuit |
| CN106992698A (en) * | 2017-05-04 | 2017-07-28 | 厦门其力电子科技有限公司 | A kind of module for power supply circuit with double-mode |
| CN106992698B (en) * | 2017-05-04 | 2023-06-06 | 厦门其力电子科技有限公司 | Module power supply circuit with dual mode |
| TWI692185B (en) * | 2019-10-31 | 2020-04-21 | 宏碁股份有限公司 | Boost converter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160217 Termination date: 20180825 |