CN105576944A - Top rush elimination circuit of high-voltage pulse power supply and top rush elimination method for top rush elimination circuit - Google Patents
Top rush elimination circuit of high-voltage pulse power supply and top rush elimination method for top rush elimination circuit Download PDFInfo
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- CN105576944A CN105576944A CN201610089656.4A CN201610089656A CN105576944A CN 105576944 A CN105576944 A CN 105576944A CN 201610089656 A CN201610089656 A CN 201610089656A CN 105576944 A CN105576944 A CN 105576944A
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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
- H02M1/00—Details of apparatus for conversion
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention relates to a top rush elimination circuit of a high-voltage pulse power supply. The top rush elimination circuit comprises a pulse unit circuit group, wherein the pulse unit circuit group is formed by N pulse unit circuits connected in series in an end-to-end way, the input end of the pulse unit circuit group is connected with a power supply output end of a charging power supply, the output end of the pulse unit circuit group is connected with one end of an output high-voltage resistor R1, the other end of the output high-voltage resistor R1 is connected with one end of a primary winding of a pulse transformer T1, the other end of the primary winding of the pulse transformer T1 is connected between the output end of the charging power supply and the input end of the pulse unit circuit group, and the two ends of a secondary winding of the pulse transformer T1 are connected with the two ends of a load R2. The invention also discloses a top rush elimination method for the top rush elimination circuit of the high-voltage pulse power supply. By controlling a starting time sequence of a discharging switch, a high-voltage waveform rising a in stepped way is formed at the primary of the pulse transformer T1, thus, overlarge top rush of an output pulse caused by leakage inductance, distributed capacitance and the like of the pulse transformer T1 is prevented, and the front edge and the pulse width of the pulse are adjustable.
Description
Technical field
The present invention relates to high-voltage pulse power source technical field, circuit is eliminated in especially a kind of top punching of high-voltage pulse power source and top rushes removing method.
Background technology
Along with the development of high-voltage pulse technology, the direction more and more higher towards pulse voltage, pulse output width-adjustable, impulse waveform Top flatness are superior, proposes higher requirement.
In existing technical scheme, typical circuit steel pipe as shown in Figure 1 pushes away pulse transformer technology, high voltage source with storage capacitor C3 is by steel pipe solid-state switch S3 and the elementary electric discharge of current-limiting resistance R3 pulse transformer T3, after boosting by pulse transformer T3, nominal load R4 reaches the high-voltage pulse output waveform b shown in Fig. 2.Due to the impact of pulse transformer T3 leakage inductance, distributed capacitance etc., by input waveform a, the high-voltage pulse output waveform b of pulse transformer T3 in Fig. 2, can find out that this scheme to have significantly shortcoming be exactly that the top punching of voltage pulse output is larger, generally all be greater than 3%, or by strengthening the current-limiting resistance R3 after solid-state switch S3, increase the power consumption of power source internal, suppress the overshoot amplitude at top, but its limited efficiency.
Summary of the invention
Primary and foremost purpose of the present invention be to provide a kind of can the top punching at suppressor pulse forward position place, realize arteries and veins become after the top punching of high-voltage pulse power source of top high flat degree of voltage pulse output waveform eliminate circuit.
For achieving the above object, present invention employs following technical scheme: circuit is eliminated in a kind of top punching 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, the other end exporting high-tension resistive R1 is connected with one end of the armature winding of pulse transformer T1, the other end of the armature winding of pulse transformer T1 is connected between the output of charge power supply and the input of pulse unit circuit group, the two ends of two terminating load R2 of the secondary winding of pulse transformer T1, controller exports control signal respectively to all discharge switches and charge switch in charge power supply and pulse unit circuit group.
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
1-1with charge switch S
1-2composition, described second pulse unit circuit is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1with charge switch S
2-2composition, described N pulse unit circuit is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1with charge switch S
n-2composition; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, storage capacitor C1 respectively, storage capacitor C1 and 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 storage capacitor C2, charge switch S
1-2be connected across storage capacitor C1 and discharge switch S
1-1on; Described storage capacitor Cn and 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 storage capacitor Cn, 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.
Another object of the present invention is to provide a kind of top of high-voltage pulse power source to rush the top of eliminating circuit and rush removing method, 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 high_voltage isolation inductance and the charge switch of each pulse unit circuit, 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) pulsewidth that exports as required of last controller and forward position, regulate the conducting sequential of each pulse unit circuit discharging switch, make discharge switch S
1-1to discharge switch S
n-1in at least two discharge switches postpone successively to open, make the voltage waveform that the output waveform of each pulse unit circuit rises at the elementary formation ladder of pulse transformer T1 through overlapped in series;
(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, owing to adopting the unlatching time delay regulating each pulse unit circuit, realizes the top high flat degree that arteries and veins becomes rear voltage pulse output waveform; The second, the discharge switch due to pulse unit circuit is firm tube device, discharge pulse width and forward position controlled, be particularly suitable for the high and application that forward position difficulty of matching is large of the such paired pulses waveform requirements of magnetron; 3rd, owing to adopting, controller is unified controls charge switch in each pulse unit circuit and discharge switch work, and one is the correctness that ensure that each switching sequence, and two is increase product function provide convenience for realizing controller software programming.
Accompanying drawing explanation
Fig. 1 is that traditional steel pipe pushes away pulse transformer power principle figure;
Fig. 2 is the primary and secondary oscillogram of pulse transformer;
Fig. 3 is circuit theory diagrams of the present invention;
Fig. 4 is working timing figure of the present invention;
Fig. 5 is the working timing figure that the present invention eliminates top punching.
Embodiment
As shown in Figure 3, circuit is eliminated in a kind of top punching 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, the other end exporting high-tension resistive R1 is connected with one end of the armature winding of pulse transformer T1, the other end of the armature winding of pulse transformer T1 is connected between the output of charge power supply and the input of pulse unit circuit group, the two ends of two terminating load R2 of the secondary winding of pulse transformer T1, controller exports control signal respectively to all discharge switches and charge switch in charge power supply and pulse unit circuit group.Output voltage reaches tens kV to the series connection of pulse unit circuit group, electric current reaches hundreds of A, the continuously adjustable ability of pulsewidth.Described output high-tension resistive R1 is arranged on the high-end of all pulse unit circuit connected in series output, plays restriction load short circuit current, reduces the effect of pulse front edge top punching; The primary input terminal of described pulse transformer T1 is connected to the output of pulse unit circuit connected in series, supply successive load R2 after boosting.
As shown in Figure 3, described pulse unit circuit group comprises the first pulse unit circuit 1, second pulse unit circuit 2 is so that N pulse unit circuit 3, the input of described first pulse unit circuit 1 is connected with the input of the second pulse unit circuit 2 as the input of pulse unit circuit group, the output of the second pulse unit circuit 2 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 3, the output of N pulse unit circuit 3 is connected with the one end exporting high-tension resistive R1 as the output of pulse unit circuit group.
As shown in Figure 3, described first pulse unit circuit 1 is by storage capacitor C1, high_voltage isolation inductance L 1, discharge switch S
1-1with charge switch S
1-2composition, described second pulse unit circuit 2 is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1with charge switch S
2-2composition, described N pulse unit circuit 3 is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1with charge switch S
n-2composition; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, storage capacitor C1 respectively, storage capacitor C1 and 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 storage capacitor C2, charge switch S
1-2be connected across storage capacitor C1 and discharge switch S
1-1on; Described storage capacitor Cn and 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 storage capacitor Cn, 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 4, 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 high_voltage isolation inductance and the charge switch of each pulse unit circuit, 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; The pulsewidth that last controller exports as required and forward position, regulate the conducting sequential of each pulse unit circuit discharging switch, make discharge switch S
1-1to discharge switch S
n-1in at least two discharge switches postpone successively to open, make the voltage waveform that the output waveform of each pulse unit circuit rises at the elementary formation ladder of pulse transformer T1 through overlapped in series; After electric discharge terminates, controller controls all discharge switches and all turns off.
As shown in Figure 5, with 3 pulse unit circuit, operation principle is described: controller regulates the work schedule of each pulse unit circuit discharging switch, first pulse unit circuit 1 output waveform c, second pulse unit circuit 2 output waveform d, 3rd pulse unit circuit output waveform e, three pulse unit circuit postpone to open, at the waveform f of the elementary formation of pulse transformer T1 after overlapped in series successively.Due at the elementary voltage waveform having formed ladder and risen of pulse transformer T1, the forward position of waveform g after pulse transformer T1 boosts can regulate, and inhibits the top at pulse front edge place to rush.That is, by controlling the work schedule of discharge switch in each pulse unit circuit, being formed in the ladder raised voltage ripple that pulse transformer T1 is elementary, then after boosting, forming the HT waveform that adjustable, the adjustable pulse width of pulse front edge, pulse top are smooth.
Embodiment one
A kind of high-voltage pulse power source, rated output voltage 150kV, output current 10A, pulsewidth 2 ~ 5 μ s continuously adjustabe, top punching is less than 1%.
The no-load voltage ratio of design pulse transformer T1 is 1:6, then the voltage that pulse transformer T1 is elementary is 25kV, and electric current is 60A.The output voltage of design charge power supply is 2.5kV, and the voltage that 10 joint pulse unit circuit connected in series export is 25kV.Often save delay 0.05 μ s, 10 joint total delaies are 0.5 μ s.
By regulating the output voltage of charge power supply, the trunon delay time often saving pulse unit circuit and ON time, the adjustment on a large scale of the amplitude of voltage pulse output, width can be realized
In sum, the present invention is by the unlatching sequential of discharge switch in control impuls element circuit group, in the elementary HT waveform realizing ladder and rise of pulse transformer T1, thus the top punching suppressing the output pulse that causes due to pulse transformer T1 leakage inductance and distributed capacitance etc. excessive, and pulse front edge and adjustable pulse width, be particularly suitable for the application scenario that the paired pulses waveform requirements such as magnetron are high.
Claims (4)
1. circuit is eliminated in the top punching 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, the other end exporting high-tension resistive R1 is connected with one end of the armature winding of pulse transformer T1, the other end of the armature winding of pulse transformer T1 is connected between the output of charge power supply and the input of pulse unit circuit group, the two ends of two terminating load R2 of the secondary winding of pulse transformer T1, controller exports control signal respectively to all discharge switches and charge switch in charge power supply and pulse unit circuit group.
2. circuit is eliminated in the top punching 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. circuit is eliminated in the top punching 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
1-1with charge switch S
1-2composition, described second pulse unit circuit is by storage capacitor C2, high_voltage isolation inductance L 2, discharge switch S
2-1with charge switch S
2-2composition, described N pulse unit circuit is by storage capacitor Cn, high_voltage isolation inductance L n, discharge switch S
n-1with charge switch S
n-2composition; The output of described charge power supply is connected with one end of high_voltage isolation inductance L 1, storage capacitor C1 respectively, storage capacitor C1 and 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 storage capacitor C2, charge switch S
1-2be connected across storage capacitor C1 and discharge switch S
1-1on; Described storage capacitor Cn and 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 storage capacitor Cn, 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. the top of the top punching elimination circuit of high-voltage pulse power source as claimed in claim 1 rushes a removing method, 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 high_voltage isolation inductance and the charge switch of each pulse unit circuit, 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) pulsewidth that exports as required of last controller and forward position, regulate the conducting sequential of each pulse unit circuit discharging switch, make discharge switch S
1-1to discharge switch S
n-1in at least two discharge switches postpone successively to open, make the voltage waveform that the output waveform of each pulse unit circuit rises at the elementary formation ladder of pulse transformer T1 through overlapped in series;
(5), after electric discharge terminates, controller controls all discharge switches and all turns off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089656.4A CN105576944A (en) | 2016-02-18 | 2016-02-18 | Top rush elimination circuit of high-voltage pulse power supply and top rush elimination method for top rush elimination circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089656.4A CN105576944A (en) | 2016-02-18 | 2016-02-18 | Top rush elimination circuit of high-voltage pulse power supply and top rush elimination method for top rush elimination circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105576944A true CN105576944A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089656.4A Pending CN105576944A (en) | 2016-02-18 | 2016-02-18 | Top rush elimination circuit of high-voltage pulse power supply and top rush elimination method for top rush elimination circuit |
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| CN (1) | CN105576944A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070179A (en) * | 2017-03-20 | 2017-08-18 | 合肥雷科电子科技有限公司 | A kind of top punching of pulse transformer eliminates circuit and its top rushes removing method |
| CN108471255A (en) * | 2018-03-27 | 2018-08-31 | 上海理工大学 | A kind of arbitrary polarity high-voltage square-wave superimposed pulses device |
| CN110289832A (en) * | 2019-06-28 | 2019-09-27 | 四川英杰电气股份有限公司 | A kind of solid-state modulator |
| CN113852265A (en) * | 2021-08-17 | 2021-12-28 | 北京无线电测量研究所 | Modulation switch |
| CN116667305A (en) * | 2023-07-31 | 2023-08-29 | 北京凌空天行科技有限责任公司 | Method for completely isolating secondary energy storage initiating explosive device activation circuit and timing control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070179A (en) * | 2017-03-20 | 2017-08-18 | 合肥雷科电子科技有限公司 | A kind of top punching of pulse transformer eliminates circuit and its top rushes removing method |
| CN108471255A (en) * | 2018-03-27 | 2018-08-31 | 上海理工大学 | A kind of arbitrary polarity high-voltage square-wave superimposed pulses device |
| CN110289832A (en) * | 2019-06-28 | 2019-09-27 | 四川英杰电气股份有限公司 | A kind of solid-state modulator |
| CN110289832B (en) * | 2019-06-28 | 2023-06-02 | 四川英杰电气股份有限公司 | Solid-state modulator |
| CN113852265A (en) * | 2021-08-17 | 2021-12-28 | 北京无线电测量研究所 | Modulation switch |
| CN116667305A (en) * | 2023-07-31 | 2023-08-29 | 北京凌空天行科技有限责任公司 | Method for completely isolating secondary energy storage initiating explosive device activation circuit and timing control method |
| CN116667305B (en) * | 2023-07-31 | 2023-10-20 | 北京凌空天行科技有限责任公司 | Method for completely isolating secondary energy storage initiating explosive device activation circuit and timing control method |
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Application publication date: 20160511 |