CN202475304U - Low-voltage heavy-current high-power pulse power supply - Google Patents
Low-voltage heavy-current high-power pulse power supply Download PDFInfo
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- CN202475304U CN202475304U CN201120510582XU CN201120510582U CN202475304U CN 202475304 U CN202475304 U CN 202475304U CN 201120510582X U CN201120510582X U CN 201120510582XU CN 201120510582 U CN201120510582 U CN 201120510582U CN 202475304 U CN202475304 U CN 202475304U
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Abstract
A low-voltage heavy-current high-power pulse power supply comprises a DC power supply device, an inverter device, a pulse control device and a high-frequency transformer device. The output end of the pulse control device is connected with the control end of the inverter device, and the pulse control device comprises a high frequency signal generator generating two high frequency pulse signals of which the frequencies are more than 10 kHz and the duty ratios are 48% to 50%, and a pulse width control module for controlling the high frequency signal generator whether to output. In allusion to the technical problem that the low-voltage heavy-current high-power pulse power supply is large in power consumption, the utility model provides an efficient solution scheme of the low-voltage heavy-current high-power pulse power supply, and the low-voltage heavy-current high-power pulse power supply has the advantages of being able to modulate frequency and amplitude, being wide in current range, being energy-saving, etc.
Description
Technical field
The utility model relates to the pulse power, specifically is a kind of low-voltage, high-current great power pulse power source.
Background technology
(low-voltage: voltage to earth is between 0-36V for the low-voltage and high-current great power pulse power source; Big electric current: current strength is more than 100A; High-power: power output is more than 1000W.) be widely used in automation control, military industry equipment, research equipment, industrial control equipment, communication apparatus, power equipment, instrument and meter, Medical Devices, semiconductor refrigerating and the field such as heat, and in commercial production, have good application prospects.At present; The great power pulse power source that prior art is manufactured; A kind of high frequency switch power that is applied to electroplating process like Chinese patent document CN101667780A proposition; Referring to shown in Figure 1, comprise DC bus-bar voltage rectifier, Buck amplitude regulator, two phase bridge-type inverters, high frequency transformer and hf rectifier, wherein; The DC bus-bar voltage of said DC bus-bar voltage rectifier output is transported to said two phase bridge-type inverters after said Buck amplitude regulator is regulated amplitude; After said two phase bridge-type inverters are regulated duty ratio, be transported to said high frequency transformer again, deliver to said hf rectifier then, last high frequency switch power signal by said hf rectifier output amplitude and EDM Generator of Adjustable Duty Ratio.Technical scheme in the above-mentioned patent documentation provides a kind of high frequency switch power that can regulate voltage magnitude and duty ratio.Said high frequency switch power output high frequency switch power can't be exported the medium and low frequency Switching Power Supply, and in order to solve this problem of low and medium frequency Switching Power Supply that provides below the 10kHz, prior art is after said hf rectifier, to connect a pulse switch device.
This technical scheme can be brought two technical problems; A problem is that the pulse switch device reality of manufacturing current strength more than 100A is infeasible; Because be prone to generate great amount of heat during system's operation, the pulse switch device will be placed on the inside of circuit board in the manufacture craft, the pulse switch device is done conference cause the heat of pulse switch device generation excessive; Can not in time shed, and then cause the pulse switch device to be burnt damage.
Another problem is that the utilance of low pressure high frequency pulse power supply of output is not high, because above-mentioned patent documentation is that the pulse switch device is connected on after the hf rectifier, is output as at power supply under the situation of high voltage-small current, and the loss of pulse switch device can be ignored; If but the output current of power supply is excessive, the loss that the resistance of switching device own brings just can not ignore.For example, the output voltage of the pulse power is 10V, and output current is 100A, and this moment, the voltage of switching device was about 1V usually, and the energy consumption of switching device itself is 100W, accounts for 10% of power 1000W, and promptly the most effective of power supply is 90%; At this moment, the power that also promptly when the big electric current of pulse power output LOW voltage, just can not ignore the switching device loss.The disclosed a kind of high-frequency high-power pulse dc power of Chinese patent document CN 2896685Y; Referring to shown in Figure 2; The output of inductor filter circuit divides circuits to be connected with many electric currents that are connected in parallel; Every electric current divides circuits to be made up of capacitor filter, equalizing circuit, switching circuit, and the output of capacitor filter is connected with the input of switching circuit through equalizing circuit, and the output of switching circuit is connected with output bus.This kind method has realized the low-voltage, high-current great power pulse power source; But this kind method is connected in parallel a plurality of pulse switch devices, because pulse switch device self character causes the retardance of its conducting, always has the conducting of a pulse switch device elder generation; The pulse switch device of back does not also have conducting; The electric current of that pulse switch device that causes flowing through first conducting is too big, and this pulse switch device very easily damages, and other pulse switch device no currents pass through; And the problem of power loss does not still solve.
The utility model content
The utility model is to be solved to be the big technical problem of low-voltage, high-current great power pulse power source power loss, and a kind of high efficiency low-voltage, high-current great power pulse power source is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is following:
A kind of low-voltage, high-current great power pulse power source comprises: continuous-current plant is used to export the direct current that preestablishes amplitude; Inverter, input is connected with said continuous-current plant output, during said inverter conducting, said direct current is carried out inversion handle, the output high-frequency pulse voltage; Said inverter ends, not output; Pulse control unit; Output is connected with said inverter control end, comprise produce the two-way frequency more than 10kHz, duty ratio is the HF signal generator of 48%-50% high-frequency pulse signal and controls the pulse width control module whether said HF signal generator has output; When said pulse width control module is in pulsewidth said inverter conducting during the time; Said inverter ends when said pulse width control module is between arteries and veins the time; The high frequency transformer device, input is connected with said inverter output, and said high-frequency pulse voltage is carried out transformation and rectification processing, output forward action of low-voltage pulse voltage.
Said HF signal generator and said pulse width control module have two kinds of connected modes; A kind of connected mode is that the output of said pulse width control module is connected with said inverter control end; One of said pulse width control module is input as the time between the arteries and veins of pulsewidth time and setting of setting, and another input connects the output of said HF signal generator; Said HF signal generator output high-frequency pulse signal; When said pulse width control module is between arteries and veins the time; Said HF signal generator and said inverter are blocked by said pulse width control module, and said high-frequency pulse signal can not flow into said inverter; When said pulse width control module is in pulsewidth during the time, said HF signal generator and said inverter are connected, and said high-frequency pulse signal flows into said inverter through said pulse width control module.The control end that another kind of connected mode is said HF signal generator is connected with the output of said pulse width control module, and the output of said HF signal generator is connected with said inverter control end; Time between the pulsewidth time that is input as setting of said pulse width control module and the arteries and veins of setting, said pulse width control module is output as triggering signal; When said pulse width control module is in pulsewidth during the time, said triggering signal is a high level, and it is in running order to trigger said HF signal generator, exports said high-frequency pulse signal; When said pulse width control module was between arteries and veins the time, said triggering signal was a low level, and said HF signal generator is in off position, not output.
Said inverter comprises the inverter circuit module; Said inverter circuit module input is connected with said continuous-current plant; Said inverter circuit module output is connected with said high frequency transformer device; Said inverter circuit module controls end is connected with said pulse control unit through the inverse changing driving circuit module, and the direct current that said continuous-current plant is exported carries out the inversion processing; The inverse changing driving circuit module, the high-frequency pulse signal that said pulse control unit is exported amplifies, and the high-frequency pulse signal after amplifying is exported to the inverter circuit module.
Said high frequency transformer device comprises the high frequency transformer module, is connected with said inverter, is used for that said high-frequency pulse voltage is carried out transformation and handles, output positive-negative polarity low pressure high-frequency pulse voltage; The secondary commutation circuit module is connected with the high frequency transformer of said high frequency transformer module is secondary, said positive-negative polarity low pressure high-frequency pulse voltage is carried out rectification handle, output forward action of low-voltage pulse voltage.
Said continuous-current plant comprises rectification module, is used for the input AC electricity is transformed to the direct current that voltage has pulsation; Filtration module, input links to each other with the output of said rectification module, and said direct current is carried out Filtering Processing, the direct current that output amplitude is level and smooth; The DC/DC conversion module, input links to each other with the output of said filtration module, comprises that amplitude is provided with the unit, the level and smooth direct current of said amplitude is carried out amplitude modulation handle, and exports said amplitude the direct current that the unit preestablishes amplitude is set.
Said DC/DC conversion module is a chopped mode.
Said continuous-current plant be input as the 380V alternating current.
The voltage magnitude of said filtration module output DC is between 500-600V; The amplitude of said DC/DC conversion module is provided with the unit settings between 0-500V.
The voltage of said low-voltage, high-current great power pulse power source is between 0-36V, and electric current is more than 100A, and power is more than 1000W.
The technique scheme of the utility model is compared prior art and is had the following advantages:
The utility model is connected the pulse switch device with inverter; Be connected on before the high frequency transformer device; The electric current that said pulse switch device passes through is little, and this little electric current has guaranteed that said pulse switch device can normally use in the rated current scope of said pulse switch device; Through with before being arranged on pulse switch device behind the said high frequency transformer device in the prior art and being arranged on said high frequency transformer device, making the electric current that flows through said pulse switch device is the little electric current before the transformation, has avoided the big current affects of exporting after the transformation; Thereby a kind of low-voltage, high-current great power pulse power source is provided, and the utility model can reduce the power consumption of said pulse switch device significantly; For example; The voltage of supposing DC/DC conversion module output DC in the utility model is 500V, and the low-voltage, high-current great power pulse power source is output as the 10V/100A power supply, and the voltage of pulse switch device is 1V; So; The electric current of pulse switch device is 10V*100A/500V=2A, and the power of said pulse switch device is 1V*2A=2W, and said pulse switch device wasted power is 0.2%; The efficient of then whole low-voltage, high-current great power pulse power source is 99.8%; The utility model increased the pulse switch device that links to each other with inverter through the pulse switch device after the said high frequency transformer device of cancellation before said high frequency transformer device, a kind of simple low-voltage, high-current great power pulse power source not only is provided; And make pulse switch device wasted power reduce greatly, a kind of high efficiency low-voltage, high-current great power pulse power source is provided; It is the high-frequency pulse signal of 48%-50% that the HF signal generator of the utility model is used for output duty cycle; Make the inter-train pause of high frequency transformer device output as far as possible little until no gap; The low-voltage, high-current great power pulse power source voltage top of final output is level and smooth; Need not add filter circuit and carry out Filtering Processing, and more steep edge, pulse front and back is arranged.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the principle topological diagram of a kind of great power pulse power source embodiment of Chinese patent document CN101667780A proposition;
Fig. 2 is the structural representation of a kind of highpowerpulse DC power supply embodiment of Chinese patent document CN 2896685Y proposition;
Fig. 3 is the structural representation of a kind of low-voltage, high-current great power pulse power source of the utility model embodiment;
Reference numeral is expressed as among the figure: the 31-continuous-current plant; The 32-inverter; 33-high frequency transformer device; The 34-pulse control unit.
Embodiment
Referring to shown in Figure 3, the low-voltage, high-current great power pulse power source of an embodiment of the utility model is that example describes with Chinese AC mains source 380V, and comprising: continuous-current plant 31 is used to export the direct current that preestablishes amplitude; Said continuous-current plant 31 comprises rectification module, is used for the 380V alternating current of input is transformed to the direct current that voltage has pulsation; Filtration module, input links to each other with the output of said rectification module, and said direct current is carried out Filtering Processing, and output amplitude is the smooth direct current between the 500-600V; The DC/DC conversion module; Be the BUCK chopped mode, i.e. buck chopper device, said DC/DC conversion module input links to each other with the output of said filtration module; Comprise that amplitude is provided with the unit; The level and smooth direct current of said amplitude is carried out amplitude modulation handle, export said amplitude the direct current that the unit preestablishes amplitude is set, said predefined amplitude is between the 0-500V.
Inverter 32, input is connected with said continuous-current plant 31 outputs, during said inverter conducting, said direct current is carried out inversion handle, the output high-frequency pulse voltage; When said inverter ends, not output; Said inverter 32 comprises the inverter circuit module; Said inverter circuit module input is connected with said continuous-current plant; Said inverter circuit module output is connected with said high frequency transformer device 33; Said inverter circuit module controls end is connected with said pulse control unit 34 through the inverse changing driving circuit module, and the direct current that said continuous-current plant is exported carries out the inversion processing; The inverse changing driving circuit module, the high-frequency pulse signal that said pulse control unit 34 is exported amplifies, and the high-frequency pulse signal after amplifying is exported to said inverter circuit module.
Pulse control unit 34; Output is connected with said inverter 32 control ends; Comprise produce the two-way frequency more than 10kHz, duty ratio is the HF signal generator of 50% high-frequency pulse signal and controls the pulse width control module whether said HF signal generator has output, when said pulse width control module is in pulsewidth said inverter conducting during the time; Said inverter ends when said pulse width control module is between arteries and veins the time; The output of said pulse width control module is connected with said inverter 32 control ends, and of said pulse width control module is input as the time between the arteries and veins of pulsewidth time and setting of setting, and another input connects the output of said HF signal generator; Said HF signal generator output high-frequency pulse signal; When said pulse width control module is between arteries and veins the time; Said HF signal generator and said inverter 32 are blocked by said pulse width control module, and said high-frequency pulse signal can not flow into said inverter 32; When said pulse width control module is in pulsewidth during the time, said HF signal generator and said inverter 32 are connected, and said high-frequency pulse signal flows into said inverter 32 through said pulse width control module.
High frequency transformer device 33, input is connected with said inverter 32 outputs, and said high-frequency pulse voltage is carried out transformation and rectification processing, output forward action of low-voltage pulse voltage; Said high frequency transformer device 33 comprises the high frequency transformer module, is connected with said inverter 32, is used for that said high-frequency pulse voltage is carried out transformation and handles, output positive-negative polarity low pressure high-frequency pulse voltage; The secondary commutation circuit module is connected with the high frequency transformer of said high frequency transformer module is secondary, said positive-negative polarity low pressure high-frequency pulse voltage is carried out rectification handle, output forward action of low-voltage pulse power supply; The voltage of said low-voltage, high-current great power pulse power source is between 0-36V, and electric current is more than 100A, and power is more than 1000W.
The low-voltage, high-current great power pulse power source course of work of the utility model is concrete to be discussed as follows:
Said 380V alternating current is handled through said continuous-current plant 31 rectification modules and filtration module; The direct current of output amplitude between 500-600V; Handle through the voltage AM of said continuous-current plant 31 then, output amplitude preestablishes the direct current between 0-500V; Said pulse switch device 34 comprise produce the two-way frequency more than 10kHz, duty ratio is the HF signal generator of 50% high-frequency pulse signal and controls the pulse width control module whether said HF signal generator has output.Said HF signal generator output high-frequency pulse signal; When said pulse width control module is between arteries and veins the time; Said HF signal generator and said inverter 32 are blocked by said pulse width control module, and said high-frequency pulse signal can not flow into said inverter 32; When said pulse width control module is in pulsewidth during the time; Said HF signal generator and said inverter 32 are connected; Said high-frequency pulse signal flows into said inverter 32 through said pulse width control module, and said inverter 32 conductings are in running order; The inverse changing driving circuit module of said inverter 32 is amplified said high-frequency pulse signal; High-frequency pulse signal after amplifying is exported to said inverter circuit module, and said inverter circuit module is carried out the inversion processing to the direct current of said continuous-current plant output, the output high-frequency pulse voltage; 33 pairs of said high-frequency pulse voltages of said high frequency transformer device carry out transformation and rectification is handled, output forward action of low-voltage pulse voltage.
The utility model is connected the pulse switch device with inverter; Be connected on before the high frequency transformer device; The electric current that said pulse switch device passes through is little, and this little electric current has guaranteed that said pulse switch device can normally use in the rated current scope of said pulse switch device; Through with before being arranged on pulse switch device behind the said high frequency transformer device in the prior art and being arranged on said high frequency transformer device, making the electric current that flows through said pulse switch device is the little electric current before the transformation, has avoided the big current affects of exporting after the transformation; Thereby a kind of low-voltage, high-current great power pulse power source is provided, and the utility model can reduce the power consumption of said pulse switch device significantly; For example; The voltage of supposing DC/DC conversion module output DC in the utility model is 500V, and the low-voltage, high-current great power pulse power source is output as the 10V/100A power supply, and the voltage of pulse switch device is 1V; So; The electric current of pulse switch device is 10V*100A/500V=2A, and the power of said pulse switch device is 1V*2A=2W, and said pulse switch device wasted power is 0.2%; The efficient of then whole low-voltage, high-current great power pulse power source is 99.8%; The utility model increased the pulse switch device that links to each other with inverter through the pulse switch device after the said high frequency transformer device of cancellation before said high frequency transformer device, a kind of simple low-voltage, high-current great power pulse power source not only is provided; And make pulse switch device wasted power reduce greatly, a kind of high efficiency low-voltage, high-current great power pulse power source is provided; The voltage duty cycle that the HF signal generator of the utility model is used for fixing the high frequency alternating current is 50%; Make the pulse of output not have the gap; The low-voltage, high-current great power pulse power source voltage top of final output is level and smooth, need not add filter circuit and carry out Filtering Processing, and steep edge, pulse front and back is arranged.
The utility model has proposed a kind of solution of high efficiency low-voltage, high-current great power pulse power source to the big technical problem of low-voltage, high-current great power pulse power source power loss, has advantages such as Frequency Adjustable, amplitude modulation, current range be wide, energy-conservation.
A distortion as the foregoing description; Said pulse control unit 34 comprises pulse width control module and the HF signal generator that links to each other successively; The control end of said HF signal generator is connected with the output of said pulse width control module, and the output of said HF signal generator links to each other with the control end of said inverter 32; Time between the pulsewidth time that is input as setting of said pulse width control module and the arteries and veins of setting, said pulse width control module is output as triggering signal; When said pulse width control module is in pulsewidth during the time, said triggering signal is a high level, and it is in running order to trigger said HF signal generator, exports said high-frequency pulse signal; When said pulse width control module was between arteries and veins the time, said triggering signal was a low level, and said HF signal generator is in off position, not output; The inverse changing driving circuit module of said inverter 32 is amplified said high-frequency pulse signal; High-frequency pulse signal after amplifying is exported to said inverter circuit module; Said inverter circuit module is carried out the inversion processing to the direct current of said continuous-current plant 31 outputs, the output high-frequency pulse voltage.
As other embodiment of the utility model, the said high-frequency pulse signal duty ratio that said HF signal generator produces can be any number between the 48%-50%; In theory, 50% duty ratio is the most desirable, can make the pulse of output not have the gap; But consider the for example individual difference of CM600HA-24E of inverter circuit module, its turn-off time of different components maybe be different, when turn-offing, have delay; Can cause direct-current short circuit, device to burn out like this,, can reserve 2% safe space from security consideration; Though possibly cause the pulse of high frequency transformer device output gapped, when turn-off delay, said inter-train pause can provide buffer time; Can not burn out device, improve the coefficient of safety of using, strengthen practicality.
The numerical value of AC mains source voltage possibly be different between country variant or area, and the foregoing description is that example is set forth explanation with the AC mains of China only.Those skilled in the art make the technical scheme of the utility model be equally applicable to the AC mains source voltage of 220V, perhaps the AC mains source voltage of other numerical value of other countries through selecting corresponding filtration module and DC/DC conversion module for use.The protection range that still belongs to the utility model.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model.
Claims (10)
1. a low-voltage, high-current great power pulse power source is characterized in that, comprising:
Continuous-current plant is used to export the direct current that preestablishes amplitude;
Inverter, input is connected with said continuous-current plant output, during said inverter conducting, said direct current is carried out inversion handle, the output high-frequency pulse voltage; When said inverter ends, not output; Pulse control unit; Output is connected with said inverter control end; Comprise produce the two-way frequency more than 10kHz, duty ratio is the HF signal generator of 48%-50% high-frequency pulse signal and controls the pulse width control module whether said HF signal generator has output, when said pulse width control module is in pulsewidth said inverter conducting during the time; Said inverter ends when said pulse width control module is between arteries and veins the time;
The high frequency transformer device, input is connected with said inverter output, and said high-frequency pulse voltage is carried out transformation and rectification processing, output forward action of low-voltage pulse voltage.
2. according to the said low-voltage, high-current great power pulse power source of claim 1; It is characterized in that; The output of said pulse width control module is connected with said inverter control end; One of said pulse width control module is input as the time between the arteries and veins of pulsewidth time and setting of setting, and another input connects the output of said HF signal generator;
Said HF signal generator output high-frequency pulse signal; When said pulse width control module is between arteries and veins the time; Said HF signal generator and said inverter are blocked by said pulse width control module, and said high-frequency pulse signal can not flow into said inverter; When said pulse width control module is in pulsewidth during the time, said HF signal generator and said inverter are connected, and said high-frequency pulse signal flows into said inverter through said pulse width control module.
3. according to the said low-voltage, high-current great power pulse power source of claim 2; It is characterized in that; The control end of said HF signal generator is connected with the output of said pulse width control module, and the output of said HF signal generator is connected with said inverter control end; Time between the pulsewidth time that is input as setting of said pulse width control module and the arteries and veins of setting, said pulse width control module is output as triggering signal;
When said pulse width control module is in pulsewidth during the time, said triggering signal is a high level, and it is in running order to trigger said HF signal generator, exports said high-frequency pulse signal; When said pulse width control module was between arteries and veins the time, said triggering signal was a low level, and said HF signal generator is in off position, not output.
4. according to the arbitrary said low-voltage, high-current great power pulse power source of claim 1-3, it is characterized in that said inverter comprises
The inverter circuit module; Said inverter circuit module input is connected with said continuous-current plant; Said inverter circuit module output is connected with said high frequency transformer device; Said inverter circuit module controls end is connected with said pulse control unit through the inverse changing driving circuit module, and the direct current that said continuous-current plant is exported carries out the inversion processing;
The inverse changing driving circuit module, the high-frequency pulse signal that said pulse control unit is exported amplifies, and the high-frequency pulse signal after amplifying is exported to said inverter circuit module.
5. according to the said low-voltage, high-current great power pulse power source of claim 4, it is characterized in that said high frequency transformer device comprises
The high frequency transformer module is connected with said inverter, is used for that said high-frequency pulse voltage is carried out transformation and handles, output positive-negative polarity low pressure high-frequency pulse voltage;
The secondary commutation circuit module is connected with the high frequency transformer of said high frequency transformer module is secondary, said positive-negative polarity low pressure high-frequency pulse voltage is carried out rectification handle, output forward action of low-voltage pulse voltage.
6. according to the said low-voltage, high-current great power pulse power source of claim 5, it is characterized in that said continuous-current plant comprises
Rectification module is used for the alternating current of input is transformed to the direct current that voltage has pulsation;
Filtration module, input links to each other with the output of said rectification module, and said direct current is carried out Filtering Processing, the direct current that output amplitude is level and smooth;
The DC/DC conversion module, input links to each other with the output of said filtration module, comprises that amplitude is provided with the unit, the level and smooth direct current of said amplitude is carried out amplitude modulation handle, and exports said amplitude the direct current that the unit preestablishes amplitude is set.
7. according to the said low-voltage, high-current great power pulse power source of claim 6, it is characterized in that said DC/DC conversion module is a chopped mode.
8. according to the said low-voltage, high-current great power pulse power source of claim 7, it is characterized in that, said continuous-current plant be input as the 380V alternating current.
9. said according to Claim 8 low-voltage, high-current great power pulse power source is characterized in that the voltage magnitude of said filtration module output DC is between 500-600V; The amplitude of said DC/DC conversion module is provided with the unit and is arranged between the 0-500V.
10. according to the said low-voltage, high-current great power pulse power source of claim 9, it is characterized in that the voltage of said low-voltage, high-current great power pulse power source is between 0-36V, electric current is more than 100A, and power is more than 1000W.
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| CN201120510582XU CN202475304U (en) | 2011-12-08 | 2011-12-08 | Low-voltage heavy-current high-power pulse power supply |
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| CN201120510582XU CN202475304U (en) | 2011-12-08 | 2011-12-08 | Low-voltage heavy-current high-power pulse power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386800A (en) * | 2011-12-08 | 2012-03-21 | 崔建勋 | Low-voltage heavy-current high-power pulse power supply |
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2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386800A (en) * | 2011-12-08 | 2012-03-21 | 崔建勋 | Low-voltage heavy-current high-power pulse power supply |
| CN102386800B (en) * | 2011-12-08 | 2014-06-18 | 崔建勋 | Low-voltage heavy-current high-power pulse power supply |
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