CN102891624A - Pulse power stable output device - Google Patents
Pulse power stable output device Download PDFInfo
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- CN102891624A CN102891624A CN201210358071XA CN201210358071A CN102891624A CN 102891624 A CN102891624 A CN 102891624A CN 201210358071X A CN201210358071X A CN 201210358071XA CN 201210358071 A CN201210358071 A CN 201210358071A CN 102891624 A CN102891624 A CN 102891624A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2176—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
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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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention relates to a pulse power stable output device, which comprises a PWM (Pulse Width Modulation)/PFM (Pulse Frequency Modulation) driving unit. The pulse power stable output device is characterized in that the output end of the PWM/PFM driving unit is connected with the control end of a transistor; one end of the transistor is connected with one end of a resistor and the positive input end of a comparer; the other end of the resistor is grounded; the negative input end of the comparer is connected with the output end of a pulse reference generating unit, and the output end of the comparer is connected with the control end of the PWM/PFM driving unit; the other end of the transistor is connected with one end of an energy-storage induction coil; the other end of the energy-storage induction coil is connected with the output end anode of a full-bridge rectifying circuit and the input end of the pulse reference generating unit; and the input end of the full-bridge rectifying circuit is connected with the input of the commercial electricity. The pulse power stable output device is stable in output power and has the advantages of simple circuit structure, simple manufacturing process, low manufacturing cost and the like.
Description
Technical field
The present invention relates to a kind of pulse power output device, especially a kind of pulse power stable output device.
Background technology
At present, more stable and power factor (PF) is high in order to make power stage, generally all adopt multiplier to control the method for PWM/PFM driver element in conjunction with comparator.But, the device that utilizes the method to make, complex structure, complex manufacturing, cost is higher.As shown in Figure 1, Fig. 1 is existing pulse power output device schematic diagram.Please refer to Fig. 1, in this device, the first comparator is by contrast reference voltage and input voltage, Output rusults is input in the multiplier, this multiplier carries out after the corresponding computing result being input in one second comparator according to this result and a multiplying signal, this second comparator is controlled by a control signal, thereby controls a PWM/PFM driver element.This PWM/PFM driver element is exported a high level or a low level, in order to control the break-make of transistor Q, thereby control transformer T is load supplying, realize high power factor, but can't realize synchronously power stability output, feed back to the PWM/PFM driver element after need to detecting power output and control.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of pulse power stable output device, make this device output more stable, and circuit structure is simpler.
The present invention adopts following scheme to realize: a kind of pulse power stable output device, comprise PWM/PFM driver element (being pulse-width modulator or pulse frequency modulator), it is characterized in that: described PWM/PFM driver element output connects a transistorized control end; A described transistorized end connects an end of a resistance and the positive input terminal of a comparator; Described resistance other end ground connection; The negative input end of described comparator connects the output of a pulsation benchmark generating unit, and the output of described comparator connects the control end of described PWM/PFM driver element; The described transistorized other end connects an end of an energy storage inductor coil; The other end of described energy storage inductor coil connects the output head anode of a full bridge rectifier and the input of described pulsation benchmark generating unit; The input of described full bridge rectifier connects the civil power input.
In an embodiment of the present invention, described pulsation benchmark generating unit, comprise a comparator, it is characterized in that: the output of described comparator connects an end of one first resistance, an end of one second resistance and the positive terminal of a diode, the negative input end of described comparator connects an end of an electric capacity and the negative pole end of described diode, and the positive input terminal of described comparator connects a reference voltage; The other end ground connection of described the second resistance; The other end ground connection of described electric capacity; The other end of described the first resistance is as the input of described pulsation benchmark generating means; The output of described comparator is as the output of described pulsation benchmark generating means.
In an embodiment of the present invention, also comprise a power supply coil, one end ground connection of described power supply coil, the other end of described power supply coil is through the power end of the described pulsation benchmark of rectifying and wave-filtering network connection generating unit and the power end of PWM/PFM driver element, and described power supply coil and described energy storage coil are wound on the same magnetic core.
In an embodiment of the present invention, also comprise a start-up circuit, the input of described start-up circuit connects the output of described full bridge rectifier, and the output of described start-up circuit connects the power end of described pulsation benchmark generating unit and the power end of PWM/PFM driver element.
In an embodiment of the present invention, also comprise a rectifying and wave-filtering network, the input of described rectifying and wave-filtering network connects an end of described resistance, and the output of described rectifying and wave-filtering network connects the positive input terminal of described comparator.
In an embodiment of the present invention, also comprise a load and a power stage coil, described power stage coil is described load supplying through a rectifying and wave-filtering network, and described power stage coil and described energy storage coil are wound on the same magnetic core.
In an embodiment of the present invention, also comprise a load, the input of described load connects the output head anode of described full bridge rectifier, and the output of described load connects the other end of described energy storage coil; Described energy storage coil is described load supplying through a rectifying and wave-filtering network.
In an embodiment of the present invention, described transistor is metal-oxide-semiconductor; The grid of described metal-oxide-semiconductor is as described transistorized control end, and the source electrode of described metal-oxide-semiconductor is as a described transistorized end, and the drain electrode of described metal-oxide-semiconductor is as the described transistorized other end.
In an embodiment of the present invention, described transistor is triode; The base stage of described triode is as described transistorized control end, and the emitter of described triode is as a described transistorized end, and the collector electrode of described triode is as the described transistorized other end
The advantages such as pulse power stable output device of the present invention has stable output power, and circuit structure is simple, and manufacture craft is simple, and cost of manufacture is low.
Description of drawings
Fig. 1 is existing pulse power output device schematic diagram.
Fig. 2 is a kind of pulse power stable output device of the present invention schematic diagram.
Fig. 3 is the schematic diagram of pulsation benchmark generating unit in a kind of pulse power stable output device in the embodiment of the invention.
Fig. 4 is a kind of pulse power stable output device one embodiment schematic diagram of the present invention.
Fig. 5 is another embodiment schematic diagram of a kind of pulse power stable output device of the present invention.
Fig. 6 is mains input voltage Vin of the present invention, pulsation reference voltage V f and through the synchronous schematic diagram of voltage V3 behind the rectifying and wave-filtering network that is comprised of the 3rd diode D3 and the 3rd capacitor C 3.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below will by specific embodiment and relevant drawings, the present invention be described in further detail.
Present embodiment provides a kind of pulse power stable output device, comprises the PWM/PFM driver element, it is characterized in that: described PWM/PFM driver element output connects a transistorized control end; A described transistorized end connects an end of a resistance and the positive input terminal of a comparator; Described resistance other end ground connection; The negative input end of described comparator connects the output of a pulsation benchmark generating unit, and the output of described comparator connects the control end of described PWM/PFM driver element; The described transistorized other end connects an end of an energy storage inductor coil; The other end of described energy storage inductor coil connects the output head anode of a full bridge rectifier and the input of described pulsation benchmark generating unit; The input of described full bridge rectifier connects the civil power input.
As shown in Figure 2, Fig. 2 is a kind of pulse power stable output device of the present invention schematic diagram.Please refer to Fig. 2, present embodiment provides a kind of pulse power stable output device, comprises PWM/PFM driver element 3, it is characterized in that: described PWM/PFM driver element 3 outputs connect the control end of a transistor Q; The end of described transistor Q connects an end of a resistance R and the positive input terminal of a comparator 2; Described resistance R other end ground connection; The negative input end of described comparator 2 connects the output of a pulsation benchmark generating unit 1, and the output of described comparator 2 connects the control end of described PWM/PFM driver element 3; The other end of described transistor Q connects the end of an energy storage inductor coil L; The other end of described energy storage inductor coil L connects the output head anode of a full bridge rectifier and the input of described pulsation benchmark generating unit 1; The input of described full bridge rectifier connects civil power input Vin.
As shown in Figure 3, Fig. 3 is the schematic diagram of pulsation benchmark generating unit in a kind of pulse power stable output device in the embodiment of the invention.Please refer to Fig. 3, present embodiment provides a kind of pulsation benchmark generating unit, comprise a comparator, it is characterized in that: the output of described comparator connects an end of one first resistance R 1, an end of one second resistance R 2 and the positive terminal of a diode D, the negative input end of described comparator connects an end of a capacitor C and the negative pole end of described diode D, the positive input terminal of described comparator connects a reference voltage, and the voltage stabilizing value of described reference voltage is 0.7V; The other end ground connection of described the second resistance R 2; The other end ground connection of described capacitor C; The other end of described the first resistance R 1 is as the input of described pulsation benchmark generating means; The output of described comparator is as the output of described pulsation benchmark generating means.
As shown in Figure 4, Fig. 4 is a kind of pulse power stable output device one embodiment schematic diagram of the present invention.Please refer to Fig. 4, present embodiment provides a kind of pulse power stable output device, comprises PWM/PFM driver element 3, it is characterized in that: described PWM/PFM driver element 3 outputs connect the grid of a metal-oxide-semiconductor Q; The source electrode of described metal-oxide-semiconductor Q connects the input of the rectifying and wave-filtering network that the end and of a resistance R is comprised of the 3rd diode D3 and the 3rd capacitor C 3; The output of the described rectifying and wave-filtering network that is comprised of the 3rd diode D3 and the 3rd capacitor C 3 connects the positive input terminal of a comparator 2; Described resistance R other end ground connection; The negative input end of described comparator 2 connects the output of a pulsation benchmark generating unit 1, and the output of described comparator 2 connects the control end of described PWM/PFM driver element 3; The drain electrode of described metal-oxide-semiconductor Q connects the second end of a transformer T primary coil; The first end of described transformer T primary coil connects the output of a load 4; The input of described load 4 connects the output of a full bridge rectifier and the input of described pulsation benchmark generating unit 1; The input of described full bridge rectifier connects civil power input Vin.Also comprise a power supply coil, described power supply coil the second end ground connection, described power supply coil first end is through the power end of the described pulsation benchmark of a rectifying and wave-filtering network connection generating unit 1 that is comprised of the second diode D2 and the second capacitor C 2 and the power end of PWM/PFM driver element 3.Also comprise a start-up circuit 5, the input of described start-up circuit 5 connects the output of described full bridge rectifier, and the output of described start-up circuit 5 connects the power end of described pulsation benchmark generating unit 1 and the power end of PWM/PFM driver element 3.Also comprise a rectifying and wave-filtering network that is comprised of the first diode D1 and the first capacitor C 1, described transformer T primary coil is described load 4 power supplies through this network.
As shown in Figure 5, Fig. 5 is another embodiment schematic diagram of a kind of pulse power stable output device of the present invention.Please refer to Fig. 5, present embodiment provides a kind of pulse power stable output device, comprises PWM/PFM driver element 3, it is characterized in that: described PWM/PFM driver element 3 outputs connect the base stage of a NPN type triode Q; The emitter of described NPN type triode Q connects the input of the rectifying and wave-filtering network that the end and of a resistance R is comprised of the 3rd diode D3 and the 3rd capacitor C 3; The output of the described rectifying and wave-filtering network that is comprised of the 3rd diode D3 and the 3rd capacitor C 3 connects the positive input terminal of a comparator 2; Described resistance R other end ground connection; The negative input end of described comparator 2 connects the output of a pulsation benchmark generating unit 1, and the output of described comparator 2 connects the control end of described PWM/PFM driver element 3; The collector electrode of described NPN type triode Q connects the second end of a transformer T primary coil; The first end of described transformer T primary coil connects the output of a full bridge rectifier and the input of described pulsation benchmark generating unit 1; The input of described full bridge rectifier connects civil power input Vin.Also comprise a power supply coil, described power supply coil the second end ground connection, described power supply coil first end is through the power end of the described pulsation benchmark of a rectifying and wave-filtering network connection generating unit 1 that is comprised of the second diode D2 and the second capacitor C 2 and the power end of PWM/PFM driver element 3.Also comprise a start-up circuit 5, the input of described start-up circuit 5 connects the output of described full bridge rectifier, and the output of described start-up circuit 5 connects the power end of described pulsation benchmark generating unit 1 and the power end of PWM/PFM driver element 3.Also comprise a load 4, the power stage coil of described transformer T is described load 4 power supplies through a rectifying and wave-filtering network that is comprised of the first diode D1 and the first capacitor C 1.
Please continue with reference to Fig. 5, the principle that the following describes above-described embodiment is as follows:
When starting this device, civil power input Vin provides voltage by start-up circuit 5 for capacitor C 2 chargings and for pulsation benchmark generating unit 1 and PWM/PFM driver element 3 after through a full bridge rectifier.PWM/PFM driver element 3 outputs one high level makes its conducting to the base stage of NPN type triode Q, at this moment, civil power input Vin passes through NPN type triode Q again through passing through transformer T primary coil behind the full bridge rectifier, the resistance R of flowing through forms a current path to ground.Because the current sampling effect of resistance R, resistance R both end voltage provide the feedback voltage of a positive input terminal for comparator 2 by the rectifying and wave-filtering network that is made of diode D3 and capacitor C 3.This feedback voltage is because the existence of the primary coil of transformer T, can slowly become along with the startup of circuit large, until during the pulsation reference voltage that this feedback voltage provides for the negative input end of comparator 2 greater than pulsation benchmark generating unit 1, control comparator 2 outputs one high level, this high level control PWM/PFM driver element 3 outputs one low level.The base stage of NPN type triode Q is only carried because having applied low level, and the power stage coil of transformer T begins to release energy to load, and the power supply coil is also to capacitor C 2 chargings.When the power supply coil output voltage of transformer T was reduced to 0V because energy release is complete, the output voltage of PWM/PFM driver element reverted to again high voltage, enters next circulation.As shown in Figure 6, because pulsation reference voltage V f and mains input voltage Vin are synchronous and stable, so the voltage V3 of the PEV peak envelope voltage of the electric current of taking a sample on the resistance R after through the rectifying and wave-filtering network that is comprised of the 3rd diode D3 and the 3rd capacitor C 3 and civil power are synchronously and stable, the realization power stage is stablized.
Above-listed preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above only is preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a pulse power stable output device comprises the PWM/PFM driver element, it is characterized in that: described PWM/PFM driver element output connects a transistorized control end; A described transistorized end connects an end of a resistance and the positive input terminal of a comparator; Described resistance other end ground connection; The negative input end of described comparator connects the output of a pulsation benchmark generating unit, and the output of described comparator connects the control end of described PWM/PFM driver element; The described transistorized other end connects an end of an energy storage inductor coil; The other end of described energy storage inductor coil connects the output head anode of a full bridge rectifier and the input of described pulsation benchmark generating unit; The input of described full bridge rectifier connects the civil power input.
2. pulse power stable output device according to claim 1, it is characterized in that: described pulsation benchmark generating unit, comprise a comparator, it is characterized in that: the output of described comparator connects an end of one first resistance, an end of one second resistance and the positive terminal of a diode, the negative input end of described comparator connects an end of an electric capacity and the negative pole end of described diode, and the positive input terminal of described comparator connects a reference voltage; The other end ground connection of described the second resistance; The other end ground connection of described electric capacity; The other end of described the first resistance is as the input of described pulsation benchmark generating means; The output of described comparator is as the output of described pulsation benchmark generating means.
3. pulse power stable output device according to claim 1, it is characterized in that: also comprise a power supply coil, one end ground connection of described power supply coil, the other end of described power supply coil is through the power end of the described pulsation benchmark of rectifying and wave-filtering network connection generating unit and the power end of PWM/PFM driver element, and described power supply coil and described energy storage coil are wound on the same magnetic core.
4. pulse power stable output device according to claim 3, it is characterized in that: also comprise a start-up circuit, the input of described start-up circuit connects the output of described full bridge rectifier, and the output of described start-up circuit connects the power end of described pulsation benchmark generating unit and the power end of PWM/PFM driver element.
5. pulse power stable output device according to claim 1, it is characterized in that: also comprise a rectifying and wave-filtering network, the input of described rectifying and wave-filtering network connects an end of described resistance, and the output of described rectifying and wave-filtering network connects the positive input terminal of described comparator.
6. pulse power stable output device according to claim 1, it is characterized in that: also comprise a load and a power stage coil, described power stage coil is described load supplying through a rectifying and wave-filtering network, and described power stage coil and described energy storage coil are wound on the same magnetic core.
7. pulse power stable output device according to claim 1, it is characterized in that: also comprise a load, the input of described load connects the output head anode of described full bridge rectifier, and the output of described load connects the other end of described energy storage coil; Described energy storage coil is described load supplying through a rectifying and wave-filtering network.
8. pulse power stable output device according to claim 1, it is characterized in that: described transistor is metal-oxide-semiconductor; The grid of described metal-oxide-semiconductor is as described transistorized control end, and the source electrode of described metal-oxide-semiconductor is as a described transistorized end, and the drain electrode of described metal-oxide-semiconductor is as the described transistorized other end.
9. pulse power stable output device according to claim 1, it is characterized in that: described transistor is triode; The base stage of described triode is as described transistorized control end, and the emitter of described triode is as a described transistorized end, and the collector electrode of described triode is as the described transistorized other end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358071.XA CN102891624B (en) | 2012-09-25 | 2012-09-25 | Pulse power stable output device |
| PCT/CN2013/073682 WO2014048102A1 (en) | 2012-09-25 | 2013-04-03 | Stable pulse power output apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358071.XA CN102891624B (en) | 2012-09-25 | 2012-09-25 | Pulse power stable output device |
Publications (2)
| Publication Number | Publication Date |
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| CN102891624A true CN102891624A (en) | 2013-01-23 |
| CN102891624B CN102891624B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210358071.XA Expired - Fee Related CN102891624B (en) | 2012-09-25 | 2012-09-25 | Pulse power stable output device |
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| Country | Link |
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| CN (1) | CN102891624B (en) |
| WO (1) | WO2014048102A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014048102A1 (en) * | 2012-09-25 | 2014-04-03 | Wu Huai | Stable pulse power output apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323938A (en) * | 2019-08-05 | 2019-10-11 | 杭州嘉楠耘智信息科技有限公司 | Power supply voltage following device and computing equipment |
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| CN2188818Y (en) * | 1994-01-31 | 1995-02-01 | 清华大学 | Full-automatic control constant-voltage and constant current-limiting electronic charger |
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| CN102651613A (en) * | 2011-02-28 | 2012-08-29 | 昂宝电子（上海）有限公司 | System and method used for constant-voltage mode and constant-current mode in flyback supply convertor |
| CN202841005U (en) * | 2012-09-25 | 2013-03-27 | 福州凡普科技有限公司 | Stable pulse power output device |
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| US7054170B2 (en) * | 2004-01-05 | 2006-05-30 | System General Corp. | Power-mode controlled power converter |
| TW201038129A (en) * | 2009-04-09 | 2010-10-16 | Sanyo Electric Co | Control circuit for light emitting element |
| CN201435677Y (en) * | 2009-06-19 | 2010-03-31 | Bcd半导体制造有限公司 | Flyback switch power supply |
| CN102684507A (en) * | 2011-03-17 | 2012-09-19 | 国琏电子（上海）有限公司 | Flyback switching power supply |
| CN102545636B (en) * | 2012-02-13 | 2014-03-12 | 辉芒微电子（深圳）有限公司 | Pulse frequency modulation (PFM) primary side feedback controller and PFM primary side feedback converter using same |
| CN102891624B (en) * | 2012-09-25 | 2015-01-07 | 吴槐 | Pulse power stable output device |
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2012
- 2012-09-25 CN CN201210358071.XA patent/CN102891624B/en not_active Expired - Fee Related
-
2013
- 2013-04-03 WO PCT/CN2013/073682 patent/WO2014048102A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2188818Y (en) * | 1994-01-31 | 1995-02-01 | 清华大学 | Full-automatic control constant-voltage and constant current-limiting electronic charger |
| CN101005722A (en) * | 2006-01-20 | 2007-07-25 | 松下电器产业株式会社 | Light emitting diode drive apparatus |
| US20080316781A1 (en) * | 2007-06-21 | 2008-12-25 | Green Mark Technology Inc. | Buck converter led driver circuit |
| CN102238780A (en) * | 2010-04-30 | 2011-11-09 | 安森美半导体贸易公司 | Control circuit of light-emitting element |
| CN102651613A (en) * | 2011-02-28 | 2012-08-29 | 昂宝电子（上海）有限公司 | System and method used for constant-voltage mode and constant-current mode in flyback supply convertor |
| CN202841005U (en) * | 2012-09-25 | 2013-03-27 | 福州凡普科技有限公司 | Stable pulse power output device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014048102A1 (en) * | 2012-09-25 | 2014-04-03 | Wu Huai | Stable pulse power output apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102891624B (en) | 2015-01-07 |
| WO2014048102A1 (en) | 2014-04-03 |
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