CN201199674Y - High-voltage power supply apparatus for resonant converter - Google Patents
High-voltage power supply apparatus for resonant converter Download PDFInfo
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- CN201199674Y CN201199674Y CNU2008201163523U CN200820116352U CN201199674Y CN 201199674 Y CN201199674 Y CN 201199674Y CN U2008201163523 U CNU2008201163523 U CN U2008201163523U CN 200820116352 U CN200820116352 U CN 200820116352U CN 201199674 Y CN201199674 Y CN 201199674Y
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model relates to a high-voltage power supply device for a resonant converter, which mainly solves the problems that the peak current flowing across a switch tube is high, the control of a power source is complicated, and the work is not easy to be achieved under the output status of direct current stabilized voltage in the prior art. The utility model adopts a parallel resonance topology circuit; and a resonant capacitor is parallelly connected with a primary transformer. The circuit structure can be used in a full bridge or half bridge manner, can be connected with the output end of an active factor correcting circuit, and also can adopt municipal power of 220 V to supply power. The utility model can satisfy the ways of applying the high voltage source to a direct current voltage stabilizing output status and a capacitance constant current charge status, and can be suitable for occasions where the load of the power source is changed suddenly, thereby achieving the complete performance of high power density by combing the advantages of the resonant converter and a PFM converter.
Description
Technical field
The utility model relates to a kind of supply unit, is specifically related to a kind of high voltage power source of resonant transformer.
Background technology
The power electronic technology development in recent years is swift and violent, along with mechanics of communication and power system development, communication is had higher requirement with performance, weight, volume, efficient and the reliability of Switching Power Supply and electric power operation power supply.In order to satisfy these requirements, soft switch technique arises at the historic moment, as controlled resonant converter, quasi resonant convertor and multi-resonance converter.Zero voltage switch or Zero Current Switch that they have realized switching tube have reduced switching loss, have improved the conversion efficiency of converter.The nineties occurred zero conversion converter, just converter is operated in resonance condition in the switching tube switching process, realizes the zero voltage switch or the Zero Current Switch of switching tube, and other times all are operated under PWM (pulse width modulation) control mode.
In the resonance manner, commonly used is the series resonance mode, has realized the no-voltage and the zero current unlatching shutoff of switching tube in this mode, has reduced the loss of switching tube.Shortcoming is the peak current height that flows through switching tube, and the control complexity of power supply is difficult for being implemented in work under the DC voltage-stabilizing output state.
Summary of the invention
At the problems referred to above, the purpose of this utility model is to solve the peak current height that flows through switching tube that exists in the prior art, and the control complexity of power supply is difficult for being implemented in the problem of working under the DC voltage-stabilizing output state.
The utility model is that the technical scheme that its purpose of realization is taked is: adopt parallel resonance topological structure circuit in resonant circuit, resonant capacitance and primary are connected in parallel.
In the full-bridge mode, described parallel resonance topological structure circuit adopts four groups of switching tube assemblies, after per two groups of series connection, be connected in parallel on the output of APFC together, the input of resonant inductance and resonant capacitance is connected to two groups of mid points between the tandem tap pipe assembly, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
In the half-bridge mode, described parallel resonance topological structure circuit adopts two groups of switching tube assemblies and two electric capacity, respectively after the series connection, be connected in parallel on the output of APFC together, the input of resonant inductance is connected the mid point between two electric capacity of connecting, the input of resonant capacitance is connected the mid point of two groups of tandem tap pipe assemblies, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
The utility model can directly adopt civil power 220V power supply, and technical scheme is as follows:
In the full-bridge mode, described parallel resonance topological structure circuit adopts four groups of switching tube assemblies, after per two groups of series connection, be connected in parallel on the output of current rectifying and wave filtering circuit together, the input of resonant inductance and resonant capacitance is connected to two groups of mid points between the tandem tap pipe assembly, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
In the half-bridge mode, described parallel resonance topological structure circuit adopts two groups of switching tube assemblies and two electric capacity, respectively after the series connection, be connected in parallel on the output of current rectifying and wave filtering circuit together, the input of resonant inductance is connected the mid point between two electric capacity of connecting, the input of resonant capacitance is connected the mid point of two groups of tandem tap pipe assemblies, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
The utility model can satisfy the mode that high voltage source is applied to DC voltage-stabilizing output state and electric capacity constant current charge state, well brings into play the advantage of Switching Power Supply.And the occasion that can be fit to power source loads sudden change, promptly exporting is suddenlyd change by underloading suddenlys change to light condition to the full power output state or from the full power output state.Advantage in conjunction with controlled resonant converter and pulse frequency modulated (PFM) converter reaches the very complete machine performance of high power density.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is the utility model The general frame;
Fig. 2 is a series resonance topological structure circuit diagram;
Fig. 3 is a parallel resonance topological structure circuit diagram;
Fig. 4 is a half-bridge parallel resonance topological structure circuit diagram;
Fig. 5 is the current work oscillogram;
Fig. 6 is the utility model embodiment one circuit structure diagram;
Fig. 7 is the utility model embodiment one actual measurement resonance current oscillogram;
Fig. 8 is the utility model embodiment two circuit structure diagrams.
Embodiment
Referring to Fig. 1, the utility model mainly comprises four circuit parts: APFC 1 (also can directly adopt current rectifying and wave filtering circuit with civil power), resonant circuit 2, control circuit 3, transformation output circuit 4.
In resonance manner, commonly used is the series resonance mode, and series resonance topological structure circuit has been realized the no-voltage and the zero current unlatching shutoff of switching tube as shown in Figure 2 in this mode, reduced the loss of switching tube.Shortcoming is the peak current height that flows through switching tube, and the control complexity of power supply is difficult for being implemented in work under the DC voltage-stabilizing output state.
The utility model utilization be the parallel resonance mode, parallel resonance topological structure circuit as shown in Figure 3, utilize soft switch technique to improve switching frequency, the parasitic parameter of transformer is all absorbed by basic transducer parameters, but the work of converter high-efficiency reliable is high voltage source ideal designs scheme.
Now specify as follows to each circuit of the utility model:
APFC 1 mainly utilizes the BOOST inductance to realize the Active Power Factor Correction of power supply.Circuit structure is shown in APFC among Fig. 81.
Electric current by in the control chip control high-frequency inductor makes the voltage and current in the loop have identical phase place and waveform, and late-class circuit is equivalent to pure resistive load, and the power factor of power supply improves greatly, can reach 0.98.
The utility model also can directly adopt civil power 220V power supply, supplies back level resonant circuit 2 behind current rectifying and wave filtering circuit 1 ＇, as shown in Figure 6.
Circuit comprises: switching tube 211,212, diode 221,222, electric capacity 231,232, resonant inductance 24, resonant capacitance 25, transformer 41, rectifier diode 421,422,423,424, filter capacitor 43.
The 390V voltage that provides from APFC is added to resonant circuit, switching tube 211 and switching tube 212 conductings by turns, and after transformer 41, rectifier diode 421～424 rectifications, load RL is exported in filtering again.Concrete current waveform is seen Fig. 5.
Switching tube 211 conducting under control signal control, supply voltage are added to elementary, the resonant inductance 24 and the electric capacity 232 of transformer 41, because the existence of resonance impedance, current in loop is a resonance characteristic.Switching tube 211 closes has no progeny, 212 conductings again, and the voltage on the electric capacity 232 is added on resonant inductance 24, transformer 41 elementary.
From current waveform, t0 is switching tube 211 conductings constantly, this moment, electric current flow through from diode 221, current reversal flows through from switching tube 211 during to t1, finish the resonance of resonant inductance 24 and resonant capacitance 25 constantly to t2, this moment, the voltage of resonant capacitance 25 equaled the voltage that secondary voltage is folded to primary, t2 constantly after, rectifying tube conducting behind the transformer is to secondary transmission energy.During to t3, switching tube 211 turn-offs firmly, and electric current can not suddenly change in the resonant inductance 24, and this moment, electric current just flow through from diode 222, and current waveform is linear decline.Through behind the Dead Time, t4 is switching tube 212 conductings constantly, and this moment, electric current flow through from diode 222, so for switching tube 212, be zero current and no-voltage conducting.To t5 constantly, current reversal flows through from switching tube 212, after this arrives next cycle again.
The function of control circuit 3 mainly is a voltage close loop, guarantees the stability of output voltage.Compare from output voltage sampling and benchmark, the frequency of oscillation of control chip, when frequency was low, output was maximum.When output voltage raises, sampling voltage raise and benchmark relatively after, the output frequency of control chip raises, the power supply fan-out capability descends; When voltage reduces, sampling reduce and benchmark relatively after, the output frequency of control chip reduces, the power supply fan-out capability increases.
The utility model can be operated in the high direct voltage output state, and power supply guarantees the stability of power supply by top said control output voltage.When charge power supply is used, power supply is a constant current charge, when charging voltage arrives set point, stops charging.As within a certain period of time, voltage is not charged to set point, illustrates that then load has problem (or power supply has surpassed setting power).
Power supply is provided with the overvoltage error protection, and after sampling voltage surpassed the overvoltage set point, output OC door Continuity signal blocked high pressure output, and has the fault memory function.Again after powering up, can remove the fault memory.
Embodiment one
This example is output 1kW supply unit, and it does not have source power factor correcting circuit 1, directly adopts civil power 220V power supply.Resonant circuit forms is the half-bridge mode, and lowest operating frequency is chosen to be 40kHz, and maximum operating frequency is 100kHz.Circuit structure is referring to Fig. 6, and the resonance current waveform is referring to Fig. 7, and theory analysis as above.Among alternating current 220V civil power input rectifying filter circuit 1 ＇,, be used for the input voltage of resonant circuit 2 through providing direct current 300V voltage behind rectifier bridge 11, the filter capacitor 121,122.Switching tube 211,212 is parallel with diode 221,222, and diode is formed the switching tube assembly as fly-wheel diode herein, and two switching tube assemblies are cascaded.Two groups of switching tube assemblies of series connection are connected in the output of current rectifying and wave filtering circuit 1 ＇ in parallel with the electric capacity 231,232 of two series connection, the input of resonant inductance 24 is connected the mid point of electric capacity 231,232, the input of resonant capacitance 25 is connected with the switching tube assembly mid point of two groups of series connection, the output parallel connection of resonant inductance 24 and resonant capacitance 25, and be connected with the primary input terminal of transformer 41, the input of resonant capacitance 25 also is connected with another primary input terminal of transformer 41.
Switching tube 211,212 is under drive signal control, and conducting in turn produces voltage waveform alternately, is used for producing on resonant inductance 24 and resonant capacitance 25 loops current waveform alternately.232 two capacitances in series dividing potential drops of electric capacity 231 and electric capacity, making mid-point voltage is half of busbar voltage, i.e. 150V.Resonance take place in resonant inductance 24 and resonant capacitance 25, and the secondary energy that provides to transformer 41 is provided the current waveform in that the elementary generation high frequency of transformer 41 replaces.41 level output of transformer after electric capacity 43 filtering, is exported to load RL through diode 421～424 rectifications.
The utility model is the parallel resonance mode, is output as constant current, and when load short circuits, output current can not increase yet.Overvoltage crowbar is set in the control circuit, by sampling voltage and overvoltage protection benchmark relatively, when sampling voltage during greater than the overvoltage protection benchmark, the output overvoltage fault-signal.
During power work of the present utility model, the resonance current waveform that records as shown in Figure 7, from oscillogram, see to be divided into three working stages, i.e. resonance stage, electric current output stage and diode continuousing flow stage, corresponding above t1 in the circuit analysis to the t2 interval, t2 to t3 interval and t3 to the t5 interval.
Embodiment two
This example is output 2kW supply unit, and this supply unit has source power factor correcting circuit 1, and civil power 220V power supply is transformed into direct current 390V voltage, offers back level resonant circuit 2.Resonant circuit forms is the full-bridge mode, and lowest operating frequency is chosen to be 40kHz, and maximum operating frequency is 100kHz.Circuit structure as shown in Figure 8.
The alternating current 220V input gets half-sine wave by diode 111～114 rectifications.Such half-sine wave is added to the input of high-frequency inductor correcting circuit 1, is added to simultaneously treatedly in the control circuit 3 to determine desired phase place of input current and waveform as the reference signal.Input current returns by inductance 12 and through current sense resistor 13, and the sampling value of actual current waveform is offered control circuit 3.In order to reach the half-sine wave electric current of average 100Hz on inductance 12, power switch pipe 14 is realized opening and closing with 50kHz, and half-sine wave in the cycle instantaneous input voltage change slower.If can control the HF switch process exactly in short-term, in this cycle, the electric current on the inductance 12 can be followed the waveform and the phase place of half sine wave voltage signal so.Like this, be a pure resistor load in this cycle internal inductance 12 and the equivalence of circuit meeting thereafter.APFC 1 is transformed into direct current 390V voltage to the civil power alternating current 220V, is used for the input power supply of back level resonant circuit 2.
The utility model is the parallel resonance mode, is output as constant current, and when load short circuits, output current can not increase yet.In the control circuit 3 overvoltage crowbar is set, by sampling voltage and overvoltage protection benchmark relatively, when sampling voltage during greater than the overvoltage protection benchmark, the output overvoltage fault-signal.
Claims (5)
1. a high voltage power source of resonant transformer comprises resonant circuit, it is characterized in that described resonant circuit adopts parallel resonance topological structure circuit, and resonant capacitance and primary are connected in parallel.
2. high voltage power source of resonant transformer according to claim 1, it is characterized in that in the full-bridge mode, described parallel resonance topological structure circuit adopts four groups of switching tube assemblies, after per two groups of series connection, be connected in parallel on the output of APFC together, the input of resonant inductance and resonant capacitance is connected to two groups of mid points between the tandem tap pipe assembly, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
3. high voltage power source of resonant transformer according to claim 1, it is characterized in that in the half-bridge mode, described parallel resonance topological structure circuit adopts two groups of switching tube assemblies and two electric capacity, respectively after the series connection, be connected in parallel on the output of APFC together, the input of resonant inductance is connected the mid point between two electric capacity of connecting, the input of resonant capacitance is connected the mid point of two groups of tandem tap pipe assemblies, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
4. high voltage power source of resonant transformer according to claim 1, it is characterized in that in the full-bridge mode, described parallel resonance topological structure circuit adopts four groups of switching tube assemblies, after per two groups of series connection, be connected in parallel on the output of current rectifying and wave filtering circuit together, the input of resonant inductance and resonant capacitance is connected to two groups of mid points between the tandem tap pipe assembly, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
5. high voltage power source of resonant transformer according to claim 1, it is characterized in that in the half-bridge mode, described parallel resonance topological structure circuit adopts two groups of switching tube assemblies and two electric capacity, respectively after the series connection, be connected in parallel on the output of current rectifying and wave filtering circuit together, the input of resonant inductance is connected the mid point between two electric capacity of connecting, the input of resonant capacitance is connected the mid point of two groups of tandem tap pipe assemblies, the output parallel connection of resonant inductance and resonant capacitance, and be connected with the primary input terminal of transformer, the input of resonant capacitance also is connected with another primary input terminal of transformer.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201163523U CN201199674Y (en) | 2008-05-09 | 2008-05-09 | High-voltage power supply apparatus for resonant converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201163523U CN201199674Y (en) | 2008-05-09 | 2008-05-09 | High-voltage power supply apparatus for resonant converter |
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| CN201199674Y true CN201199674Y (en) | 2009-02-25 |
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| CNU2008201163523U Expired - Fee Related CN201199674Y (en) | 2008-05-09 | 2008-05-09 | High-voltage power supply apparatus for resonant converter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001502A (en) * | 2012-11-14 | 2013-03-27 | 国网智能电网研究院 | Resonance booster for new energy grid connection |
| CN103269554A (en) * | 2013-05-28 | 2013-08-28 | 深圳威迈斯电源有限公司 | Universal gas lamp starting circuit and realizing method thereof |
| CN103597723A (en) * | 2011-04-29 | 2014-02-19 | 赤多尼科两合股份有限公司 | Method and circuit for power factor correction |
| CN105429482A (en) * | 2015-12-21 | 2016-03-23 | 西安航天动力研究所 | High-voltage direct current power supply applied to dust removal system |
| CN108695829A (en) * | 2017-04-03 | 2018-10-23 | 维洛西门子新能源汽车法国简式股份公司 | Guard method, protective device, electrical system and the charger system of resonance circuit |
| CN112350403A (en) * | 2020-11-03 | 2021-02-09 | 山东大学 | Battery equalization topology based on half-bridge structure and wave trap and control method |
| CN114094869A (en) * | 2021-11-23 | 2022-02-25 | 成都科莱弗生命科技有限公司 | Circuit and method for realizing pulsed electric field technology |
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2008
- 2008-05-09 CN CNU2008201163523U patent/CN201199674Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103597723A (en) * | 2011-04-29 | 2014-02-19 | 赤多尼科两合股份有限公司 | Method and circuit for power factor correction |
| CN103597723B (en) * | 2011-04-29 | 2016-08-17 | 赤多尼科两合股份有限公司 | Method and circuits for PFC |
| CN103001502A (en) * | 2012-11-14 | 2013-03-27 | 国网智能电网研究院 | Resonance booster for new energy grid connection |
| CN103269554A (en) * | 2013-05-28 | 2013-08-28 | 深圳威迈斯电源有限公司 | Universal gas lamp starting circuit and realizing method thereof |
| CN103269554B (en) * | 2013-05-28 | 2015-04-22 | 深圳威迈斯电源有限公司 | Universal gas lamp starting circuit and realizing method thereof |
| CN105429482A (en) * | 2015-12-21 | 2016-03-23 | 西安航天动力研究所 | High-voltage direct current power supply applied to dust removal system |
| CN108695829A (en) * | 2017-04-03 | 2018-10-23 | 维洛西门子新能源汽车法国简式股份公司 | Guard method, protective device, electrical system and the charger system of resonance circuit |
| CN108695829B (en) * | 2017-04-03 | 2022-05-17 | 维洛西门子新能源汽车法国简式股份公司 | Protection method and protection device for resonant circuit, electrical system and charger system |
| CN112350403A (en) * | 2020-11-03 | 2021-02-09 | 山东大学 | Battery equalization topology based on half-bridge structure and wave trap and control method |
| CN112350403B (en) * | 2020-11-03 | 2023-01-13 | 山东大学 | Battery equalization topology based on half-bridge structure and wave trap and control method |
| CN114094869A (en) * | 2021-11-23 | 2022-02-25 | 成都科莱弗生命科技有限公司 | Circuit and method for realizing pulsed electric field technology |
| CN114094869B (en) * | 2021-11-23 | 2024-01-09 | 融和医疗科技(浙江)有限公司 | Circuit and method for realizing pulsed electric field technology |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20130509 |