CN105577147A - Top drop compensation circuit of high-voltage pulse power supply and top drop compensation method thereof - Google Patents
Top drop compensation circuit of high-voltage pulse power supply and top drop compensation method thereof Download PDFInfo
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- CN105577147A CN105577147A CN201610089655.XA CN201610089655A CN105577147A CN 105577147 A CN105577147 A CN 105577147A CN 201610089655 A CN201610089655 A CN 201610089655A CN 105577147 A CN105577147 A CN 105577147A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
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Abstract
The invention relates to a top drop compensation circuit of a high-voltage pulse power supply. The circuit comprises a pulse unit circuit group composed of N pulse unit circuits which are connected in series end to end. The input end of the pulse unit circuit group is connected to the power output end of a charging power supply; the output end of the pulse unit circuit group is connected to one end of a voltage output resistor R1; the other end of the voltage output resistor R1 is connected to an output terminal X1; and a controller outputs control signals separately to the charging power supply and to all discharging switches, charging switches and a compensation power supply in the pulse unit circuit group. The invention also discloses a top drop compensation method of the top drop compensation circuit of the high-voltage pulse power supply. According to the circuit and the method provided by the invention, the compensation power supply Gn outputting triangular waves is used, when the high flatness pulse waveforms are output, the totally stored energy of the system is greatly reduced; the indexes of the output pulses are ensured by using the top drop compensation method; the system function is strong; and the programmability is good by using the digital controller.
Description
Technical field
The present invention relates to high-voltage pulse power source technical field, especially a kind of top of high-voltage pulse power source falls compensating circuit and compensation method falls in top.
Background technology
Along with the development of Radar Technology and accelerator art, urgent requirement is proposed to the demand of chip with long pulse width high voltage source, especially pulsewidth is greater than the chip with long pulse width modulator of 100 μ s, and its implementation, design concept, construction cost etc. are the research emphasis of domestic and international each research unit.
Traditional technical scheme is utilize the high voltage source of band storage capacitor C3 to add solid-state switch S 3 to realize the wide output of long pulse as shown in Figure 1, generally reach hundred kV at voltage, application scenario that electric current reaches tens A, when output pulse top falls about 1%, electric capacity C3 energy storage reaches tens more than kJ, and so large energy storage makes the danger of system works greatly improve; Or only have sacrifice pulse top to fall (top falls more than 5%), reach the continuous operation of system, its output waveform is shown in Fig. 1 shown in a, has obvious pulse top and falls.
Summary of the invention
Primary and foremost purpose of the present invention is that providing a kind of makes total energy storage of system greatly decline when realizing high flat degree pulse output waveform, ensure that compensating circuit falls in the top of the high-voltage pulse power source of the index exporting pulse.
For achieving the above object, present invention employs following technical scheme: compensating circuit falls in a kind of top of high-voltage pulse power source, comprise the pulse unit circuit group that the pulse unit circuit of being connected by N number of head and the tail forms, the input of pulse unit circuit group is connected with the power output end of charge power supply, the output of pulse unit circuit group is connected with the one end exporting high-tension resistive R1, export another termination lead-out terminal X1 of high-tension resistive R1, lead-out terminal X2 is connected between the power output end of charge power supply and the input of pulse unit circuit group, the indirect successive load of lead-out terminal X1 and lead-out terminal X2, controller exports control signal discharge switch all to charge power supply and pulse unit circuit group respectively, charge switch and offset supply.
Described pulse unit circuit group comprises the first pulse unit circuit, second pulse unit circuit is so that N pulse unit circuit, the input of described first pulse unit circuit is connected with the input of the second pulse unit circuit as the input of pulse unit circuit group, the output of the second pulse unit circuit is connected with the input of the 3rd pulse unit circuit, the output of N-1 pulse unit circuit is connected with the input of N pulse unit circuit, the output of N pulse unit circuit is connected with the one end exporting high-tension resistive R1 as the output of pulse unit circuit group.
Described first pulse unit circuit is by storage capacitor C1, high_voltage isolation inductance L 1, discharge switch S
1-1, charge switch S
1-2, offset supply G1 and charging diode V1 forms, described second pulse unit circuit is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1, charge switch S
2-2, offset supply G2 and charging diode V2 forms, described N pulse unit circuit is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1, charge switch S
n-2, offset supply Gn and charging diode Vn forms; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, offset supply G1 respectively, offset supply G1 successively with storage capacitor C1, discharge switch S
1-1series connection, the other end of described high_voltage isolation inductance L 1 respectively with high_voltage isolation inductance L 2, storage capacitor C1, discharge switch S
1-1be connected, discharge switch S
1-1the other end be connected with one end of offset supply G2, charge switch S
1-2be connected across negative pole and the discharge switch S of offset supply G1
1-1on, the anode of charging diode V1 is connected with the positive pole of offset supply G1, and the negative electrode of charging diode V1 is connected with the negative pole of offset supply G1; Described offset supply Gn successively with storage capacitor Cn, discharge switch S
n-1series connection, one end of described high_voltage isolation inductance L n respectively with storage capacitor Cn, discharge switch S
n-1be connected, charge switch S
n-2one end be connected with the negative pole of offset supply Gn, charge switch S
n-2the other end and discharge switch S
n-1be connected with the one end exporting high-tension resistive R1 after being connected.
Compensation method falls in the top that another object of the present invention is to provide a kind of top of high-voltage pulse power source to fall compensating circuit, and the method comprises the step of following order:
(1) first, in controller control impuls element circuit group, all charge switchs are conducting state;
(2) then, controller controls charge power supply again, by the high_voltage isolation inductance of each pulse unit circuit, charge switch and charging diode, charges to all storage capacitors simultaneously;
(3), after being charged to rated value, the controller charge switch controlled again in all pulse unit circuit is off state;
(4) last controller controls the conducting sequential of discharge switch and the output amplitude of offset supply in each pulse unit circuit, forms last flat-top Discharge pulse waveform;
(5), after electric discharge terminates, controller controls all discharge switches and all turns off.
As shown from the above technical solution, beneficial effect of the present invention is: the first, and owing to have employed the offset supply Gn exported as triangular wave, when realizing high flat degree pulse output waveform, total energy storage of system declines greatly; The second, fall compensation method owing to have employed top, ensure that the index exporting pulse; 3rd, owing to have employed digital controller, systemic-function is powerful, and programmability is good.
Accompanying drawing explanation
Fig. 1 is traditional pulse power conceptual scheme;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is the working timing figure of top compensation of the present invention.
Embodiment
As shown in Figure 2, compensating circuit falls in a kind of top of high-voltage pulse power source, comprise the pulse unit circuit group that the pulse unit circuit of being connected by N number of head and the tail forms, the input of pulse unit circuit group is connected with the power output end of charge power supply, the output of pulse unit circuit group is connected with the one end exporting high-tension resistive R1, export another termination lead-out terminal X1 of high-tension resistive R1, lead-out terminal X2 is connected between the power output end of charge power supply and the input of pulse unit circuit group, the indirect successive load of lead-out terminal X1 and lead-out terminal X2, controller exports control signal discharge switch all to charge power supply and pulse unit circuit group respectively, charge switch and offset supply.
As shown in Figure 2, described pulse unit circuit group comprises the first pulse unit circuit, second pulse unit circuit is so that N pulse unit circuit, the input of described first pulse unit circuit is connected with the input of the second pulse unit circuit as the input of pulse unit circuit group, the output of the second pulse unit circuit is connected with the input of the 3rd pulse unit circuit, the output of N-1 pulse unit circuit is connected with the input of N pulse unit circuit, the output of N pulse unit circuit is connected with the one end exporting high-tension resistive R1 as the output of pulse unit circuit group.
As shown in Figure 2, described first pulse unit circuit is by storage capacitor C1, high_voltage isolation inductance L 1, discharge switch S
1-1, charge switch S
1-2, offset supply G1 and charging diode V1 forms, described second pulse unit circuit is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1, charge switch S
2-2, offset supply G2 and charging diode V2 forms, described N pulse unit circuit is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1, charge switch S
n-2, offset supply Gn and charging diode Vn forms; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, offset supply G1 respectively, offset supply G1 successively with storage capacitor C1, discharge switch S
1-1series connection, the other end of described high_voltage isolation inductance L 1 respectively with high_voltage isolation inductance L 2, storage capacitor C1, discharge switch S
1-1be connected, discharge switch S
1-1the other end be connected with one end of offset supply G2, charge switch S
1-2be connected across negative pole and the discharge switch S of offset supply G1
1-1on, the anode of charging diode V1 is connected with the positive pole of offset supply G1, and the negative electrode of charging diode V1 is connected with the negative pole of offset supply G1; Described offset supply Gn successively with storage capacitor Cn, discharge switch S
n-1series connection, one end of described high_voltage isolation inductance L n respectively with storage capacitor Cn, discharge switch S
n-1be connected, charge switch S
n-2one end be connected with the negative pole of offset supply Gn, charge switch S
n-2the other end and discharge switch S
n-1be connected with the one end exporting high-tension resistive R1 after being connected.
As shown in Figure 3, operationally, after system is ready, first, in controller control impuls element circuit group, all charge switchs are conducting state; Then, controller controls charge power supply again, by the high_voltage isolation inductance of each pulse unit circuit, charge switch and charging diode, charges to all storage capacitors simultaneously; After being charged to rated value, the controller charge switch controlled again in all pulse unit circuit is off state; Last controller controls the conducting sequential of discharge switch and the output amplitude of offset supply in each pulse unit circuit, forms last flat-top Discharge pulse waveform; After electric discharge terminates, controller controls all discharge switches and all turns off.
The calculating of storage capacitor Cn is by formula I × Δ t=C × Δ U, and generally the top ratio of falling designed when rated output voltage electric current is 10% ~ 20%, and thus compared with the traditional circuit shown in Fig. 1, the energy storage of storage capacitor can decline 10 ~ 20 times.The output of offset supply Gn is triangular wave, design objective be pulse unit circuit when nominal load exports, the amplitude peak of triangular wave is identical with the landing amplitude of storage capacitor Cn.Charge power supply, by high_voltage isolation inductance L n, the charge switch S of each pulse unit circuit
n-2, charging diode Vn, storage capacitor Cn is charged.Described output high-tension resistive R1, is arranged on the most significant end that all pulse unit circuit connected in series export, and plays restriction load short circuit current, reduces the effect of pulse front edge top punching.
During the discharge switch of each pulse unit circuit of independent unlatching, storage capacitor, directly to load discharge, forms dai channel and to rush to summit the impulse waveform b fallen.Now described controller, export N number of control signal, control N saves the work of offset supply Gn in pulse unit circuit, according to High voltage output impulse waveform top, situation is fallen, automatic calculating need to compensate unit number, it exports triangular wave and sees waveform c, with the output of compensation energy storage electric capacity Cn landing, forms pulsed discharge waveform d.
N saves pulse unit circuit and joins end to end, and forms high voltage pulse output loop with High voltage output resistance R1, lead-out terminal X1, X2 and successive load.Charge power supply is connected to the charging input end of low-pressure end pulse unit circuit, and power supply exports by high_voltage isolation inductance L n, storage capacitor Cn, charging diode Vn and charge switch S
n-2form charge circuit, when all charge switchs are opened simultaneously, charge power supply is that N joint storage capacitor Cn charges simultaneously.Controller detects total output voltage, and ratio falls in the top according to voltage pulse output, calculates the required voltage amplitude compensated, then according to the fan-out capability of single-unit offset supply Gn, calculate total need how many joint pulse unit offset supply Gn while open.Obviously, under the specified fan-out capability of each pulse unit circuit, all offset supply Gn will open simultaneously.
Embodiment one
A kind of high-voltage pulse power source, rated output voltage 100kV, output current 100A, pulsewidth 1ms.
Be designed with 25 joint pulse unit circuit, the output voltage of charge power supply is 4kV, and total output voltage of 25 joint series connection is 100kV.Storage capacitor Cn in pulse unit circuit falls 20% design by top, and storage capacitor Cn value is 125 μ F, and namely when output-current rating 100A, after pulsewidth 1ms, storage capacitor pressure drop is 800V.Offset supply Gn is designed to when output current 100A, and during pwm triangular wave 1ms, the peak of voltage is 800V.
When specified voltage pulse output 100kV, pulse current 100A, the offset supply Gn of 25 joints and discharge switch S
n-1need all to open simultaneously.When voltage pulse output 100kV, pulse current 80A, the discharge switch S that the 20 offset supply Gn and 25 saved save
n-1need all to open simultaneously.When voltage pulse output 100kV, pulse current 60A, the discharge switch S that the 15 offset supply Gn and 25 saved save
n-1need all to open simultaneously.By that analogy, offset supply number is needed when can reach different output current.
Again by regulating the output voltage values of charge power supply, as continuously adjustabe between from 2 ~ 4kV, coordinating the fan-out capabilities of 25 joint offset supply Gn to regulate, any voltage pulse output current value can be realized in theory
In sum, the output voltage that the present invention passes through the design magnitude of voltage of charge power supply, the number of pulse unit circuit and offset supply Gn and the number simultaneously worked, the function of Pulse of Arbitrary voltage and current can be realized, the advantages such as the total energy storage of simultaneity factor is little, output pulse top flatness is excellent, output pulse width adjustable range is large, can apply and multiple load matched occasion, practicality is stronger.
Claims (4)
1. compensating circuit falls in the top of a high-voltage pulse power source, it is characterized in that: comprise the pulse unit circuit group that the pulse unit circuit of being connected by N number of head and the tail forms, the input of pulse unit circuit group is connected with the power output end of charge power supply, the output of pulse unit circuit group is connected with the one end exporting high-tension resistive R1, export another termination lead-out terminal X1 of high-tension resistive R1, lead-out terminal X2 is connected between the power output end of charge power supply and the input of pulse unit circuit group, the indirect successive load of lead-out terminal X1 and lead-out terminal X2, controller exports control signal discharge switch all to charge power supply and pulse unit circuit group respectively, charge switch and offset supply.
2. compensating circuit falls in the top of high-voltage pulse power source according to claim 1, it is characterized in that: described pulse unit circuit group comprises the first pulse unit circuit, second pulse unit circuit is so that N pulse unit circuit, the input of described first pulse unit circuit is connected with the input of the second pulse unit circuit as the input of pulse unit circuit group, the output of the second pulse unit circuit is connected with the input of the 3rd pulse unit circuit, the output of N-1 pulse unit circuit is connected with the input of N pulse unit circuit, the output of N pulse unit circuit is connected with the one end exporting high-tension resistive R1 as the output of pulse unit circuit group.
3. compensating circuit falls in the top of high-voltage pulse power source according to claim 1, it is characterized in that: described first pulse unit circuit is by storage capacitor C1, high_voltage isolation inductance L 1, discharge switch S
1-1, charge switch S
1-2, offset supply G1 and charging diode V1 forms, described second pulse unit circuit is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1, charge switch S
2-2, offset supply G2 and charging diode V2 forms, described N pulse unit circuit is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1, charge switch S
n-2, offset supply Gn and charging diode Vn forms; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, offset supply G1 respectively, offset supply G1 successively with storage capacitor C1, discharge switch S
1-1series connection, the other end of described high_voltage isolation inductance L 1 respectively with high_voltage isolation inductance L 2, storage capacitor C1, discharge switch S
1-1be connected, discharge switch S
1-1the other end be connected with one end of offset supply G2, charge switch S
1-2be connected across negative pole and the discharge switch S of offset supply G1
1-1on, the anode of charging diode V1 is connected with the positive pole of offset supply G1, and the negative electrode of charging diode V1 is connected with the negative pole of offset supply G1; Described offset supply Gn successively with storage capacitor Cn, discharge switch S
n-1series connection, one end of described high_voltage isolation inductance L n respectively with storage capacitor Cn, discharge switch S
n-1be connected, charge switch S
n-2one end be connected with the negative pole of offset supply Gn, charge switch S
n-2the other end and discharge switch S
n-1be connected with the one end exporting high-tension resistive R1 after being connected.
4. a compensation method for compensating circuit falls in the top of high-voltage pulse power source as claimed in claim 1, and the method comprises the step of following order:
(1) first, in controller control impuls element circuit group, all charge switchs are conducting state;
(2) then, controller controls charge power supply again, by the high_voltage isolation inductance of each pulse unit circuit, charge switch and charging diode, charges to all storage capacitors simultaneously;
(3), after being charged to rated value, the controller charge switch controlled again in all pulse unit circuit is off state;
(4) last controller controls the conducting sequential of discharge switch and the output amplitude of offset supply in each pulse unit circuit, forms last flat-top Discharge pulse waveform;
(5), after electric discharge terminates, controller controls all discharge switches and all turns off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089655.XA CN105577147A (en) | 2016-02-18 | 2016-02-18 | Top drop compensation circuit of high-voltage pulse power supply and top drop compensation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089655.XA CN105577147A (en) | 2016-02-18 | 2016-02-18 | Top drop compensation circuit of high-voltage pulse power supply and top drop compensation method thereof |
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| CN201610089655.XA Pending CN105577147A (en) | 2016-02-18 | 2016-02-18 | Top drop compensation circuit of high-voltage pulse power supply and top drop compensation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107565933A (en) * | 2017-08-30 | 2018-01-09 | 西安交通大学 | A kind of high-voltage pulse power source parameterizes device and method |
| CN108336922A (en) * | 2018-03-30 | 2018-07-27 | 贵州航天林泉电机有限公司 | A kind of array pulse load power supply circuit and its control method |
| CN109417381A (en) * | 2017-04-24 | 2019-03-01 | 驱动封闭合资股份公司 | The equipment for generating high pulse voltage |
| CN111030651A (en) * | 2019-12-11 | 2020-04-17 | 西安新海脉冲科技有限公司 | Double-voltage source pulse modulator circuit and fast leading edge pulse modulator |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109417381A (en) * | 2017-04-24 | 2019-03-01 | 驱动封闭合资股份公司 | The equipment for generating high pulse voltage |
| CN109417381B (en) * | 2017-04-24 | 2022-03-22 | 驱动封闭合资股份公司 | Device for generating high pulse voltage |
| CN107565933A (en) * | 2017-08-30 | 2018-01-09 | 西安交通大学 | A kind of high-voltage pulse power source parameterizes device and method |
| CN107565933B (en) * | 2017-08-30 | 2020-03-17 | 西安交通大学 | High-voltage pulse power supply parameterization device and method |
| CN108336922A (en) * | 2018-03-30 | 2018-07-27 | 贵州航天林泉电机有限公司 | A kind of array pulse load power supply circuit and its control method |
| CN108336922B (en) * | 2018-03-30 | 2023-09-05 | 贵州航天林泉电机有限公司 | Array type pulse load power supply circuit and control method thereof |
| CN111030651A (en) * | 2019-12-11 | 2020-04-17 | 西安新海脉冲科技有限公司 | Double-voltage source pulse modulator circuit and fast leading edge pulse modulator |
| CN111030651B (en) * | 2019-12-11 | 2023-04-25 | 西安新海脉冲科技有限公司 | Dual-voltage-source pulse modulator circuit and fast-forward pulse modulator |
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