CN107257209A - A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron - Google Patents
A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron Download PDFInfo
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- CN107257209A CN107257209A CN201710579472.0A CN201710579472A CN107257209A CN 107257209 A CN107257209 A CN 107257209A CN 201710579472 A CN201710579472 A CN 201710579472A CN 107257209 A CN107257209 A CN 107257209A
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- voltage
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Classifications
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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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/567—Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
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Abstract
The invention discloses a kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron, including charge power supply, pulse shaping loop, PFN networks, filament heating circuit, storage capacitor charging voltage in pulse trigger is low, solve the problem of normal pulsed trigger isolating transformer primary side needs high pressure very well so that the pulse trigger is easy to densification, miniaturization.Pulse shaping loop is using quick IGBT as the switch opened and turned off, and output pulse jitter is small, amplitude stability, while the IGBT pressure voltages needed are low, cost is low.PFN networks are passed through in the output pulse of pulse trigger, in that context it may be convenient to governing stage electric capacity, level inductance and series, and then the convenient rise time for changing output pulse and pulsewidth.Pulse trigger is integrated with hydrogen thyratron filament heating circuit, and the circuital current can be adjusted subtly, while isolating tens of kV high pressure.Pulse trigger exports to suspend, and can meet the different occasions of needs positive negative pulse stuffing.
Description
Technical field
The invention belongs to technical field of pulse power, a kind of more particularly to high-voltage nanosecond pulse applied to hydrogen thyratron is touched
Send out device.
Background technology
Hydrogen thyratron is a kind of pulse power discharge device, mainly by anode, grid, negative electrode, hydrogen storage device and ceramic package
Five parts are constituted, and it changes the energy of the storages such as high-voltage capacitor in pulse period moment to form strong power impulses output, and it has
Have the advantages that operating voltage is high, pulse current is big, impulse modulation circuit is simple, lightweight, small volume, is widely used in scientific research, army
Thing, medical field and civilian high-tech product.Entered more than the conducting of hydrogen thyratron using amplitude, steep-front, the pulse of low jitter
Row triggering and conducting, therefore the amplitude of the pulse of pulse trigger, rise time, shake have directly influenced the conducting of hydrogen thyratron
The accuracy of time.
The triggering high-voltage pulse of existing most of hydrogen thyratron pulse trigger is directly exported by isolating transformer, is not entered
The good impedance matching of row, coupling efficiency is low, and load-carrying ability is small, particularly in multiple unit capacitor series connection hydrogen thyratron sequential
In the case of electric discharge, antijamming capability is weak；Export rising edge of a pulse relatively to delay, amplitude is unstable, shake larger；Filament heating circuit
It is unreasonable, it is impossible to isolate tens of kV high-voltage pulse.With the further development of pulse power, miniaturization, modularization, low jitter
Nanosecond pulse trigger be pulse power development inexorable trend.
PFN networks are widely used in high-voltage nanosecond pulse source, are mainly used in the generation of pulse power.PFN networks are main
It is made up of capacitor, inductance, high-voltage switch gear, it is simple in construction, the fast rise time of nanosecond can be obtained on matched load, it is defeated
Go out pulse width to be determined by level electric capacity, level inductance and series, can adjust free space greatly, it is stable and reliable in work.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, devise a kind of high pressure applied to hydrogen thyratron and receive
Pulse per second (PPS) trigger, realizes that pulse output voltage is reliable and stable, heater current is flexibly adjustable.
For achieving the above object, the technical solution adopted in the present invention is：A kind of high pressure applied to hydrogen thyratron
Nanosecond pulse trigger, including charge power supply, pulse shaping loop, PFN networks, filament heating circuit.
Described charge power supply provides energy to the storage capacitor C2 in pulse shaping loop, and the charge power supply includes first
Adjustable transformer T1, differential mode choke coil L1, commutation diode D1, current-limiting resistance R1；The first described adjustable transformer T1 secondary
One pole, IGBT Q1 emitter stages and the pole common grounds of storage capacitor C2 mono-；Described storage capacitor C2 is electrolytic capacitor, 450V/
220uF；Described differential mode choke coil L1 400mH, 100W.
The pulse shaping loop, boosting isolating transformer T2 primary side windings, storage capacitor C2, IGBT Q1 and fast extensive
Complex resistance R2 constitutes RLC networks, and high-voltage pulse is produced in boosting isolating transformer T2 vice-side windings；Described boosting isolation transformation
Device T2 uses high-voltage ignition coil, 230V/26kV；The fast recovery resistance R2 is acted as in charging process with current-limiting resistance R1 mono-
For charging resistor, during pulse shaping, fast recovery resistance R2, boosting isolating transformer T2 primary side windings, storage capacitor C2
And diode D2 compositions loop so that the boosting quick vanishing of isolating transformer T2 reversing oscillating currents.
Described PFN networks, level electric capacity charges to U, then switchs S1 to hydrogen thyratron grid by self breakdown sphere gap
R5 discharges, and load pulse amplitude is U/2, output pulse t if load matchedpBy level electric capacity C, level inductance L and series m
It is comprehensive to determinePFN network characterization impedances are by formulaIt is determined that, the electric capacity at different levels used is ceramic electricals
Hold, the capacitance of ceramic condenser is 470pF, and inductance at different levels are wound on insulation tube by high pressure silica gel line and are made, and inductance is
1.175uH；In described PFN networks, the first capacitance C3, the second capacitance C4 are 2.5nF, 40kV DC, grid limit
Leakage resistance R4 is that 25 Ω, 40W, the second capacitance C4 are connected on one end that self breakdown sphere gap switchs S1, the first capacitance
C3 is connected to the other end of PFN network delivery outlets after being connected with grid current-limiting resistance R4.
Described filament heating circuit, including fuse F1, the second adjustable transformer T4, power frequency high voltage isolating transformer
T3, common mode choke T5 and filament R6 compositions.Described power frequency high voltage isolating transformer T3, is wound on iron core, primary side around
Group is enamel-covered wire, and vice-side winding is high pressure silica gel line；Described common mode choke T5,400uH, using ferrite core, two-wire
And around the line of coiling is high pressure silica gel line.
The break-make in IGBT control pulse shaping loop, IGBT collector and emitters two ends parallel connection Absorption Capacitance C1 with
Noninductive resistance R3, is used as the buffer circuit of IGBT shutdown moments.
The triggering of the IGBT grids, triggers pattern, the electric trigger signals of 5V of capture card are after electro-optic module using light
Be transmitted by optical fiber, at trigger by opto-electronic conversion after drive IGBT drive circuit, and then drive IGBT Q1.
Advantages and positive effects of the present invention are：
(1) the storage capacitor charging voltage in pulse trigger of the invention is low, and normal pulsed trigger is solved very well
The problem of isolating transformer primary side needs high pressure so that the pulse trigger is easy to densification, miniaturization.
(2) pulse shaping loop of the invention exports pulse using quick IGBT as the switch opened and turned off
Small, amplitude stability is shaken, while the IGBT pressure voltages needed are low, cost is low.
(3) PFN networks are passed through in the output pulse of pulse trigger of the invention, in that context it may be convenient to governing stage electric capacity, level electricity
Sense and series, and then the convenient rise time for changing output pulse and pulsewidth.
(4) pulse trigger of the invention is integrated with hydrogen thyratron filament heating circuit, and the circuital current can be adjusted subtly
Section, while isolating tens of kV high pressure.
(5) pulse trigger of the invention exports to suspend, and can meet the different occasions of needs positive negative pulse stuffing.
(6) pulse trigger of the invention, by changing charge power supply voltage, can easily change output pulse width
Value.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram of high-voltage nanosecond pulse trigger applied to hydrogen thyratron of the invention.
Fig. 2 is the timing chart of the present invention.
In figure：T1 is the first adjustable transformer；L1 is differential mode choke coil；D1 is commutation diode；R1 is current-limiting resistance；R2
Recover resistance to be fast；Q1 is IGBT；C1 is Absorption Capacitance；R3 is noninductive resistance；D2 is diode；C2 is storage capacitor；T2 is
Boost isolating transformer；Cn-1, Cn grades of electric capacity of C5, C6 ...；Ln-1 grades of inductance of L5, L6 ...；S1 is that self breakdown sphere gap is opened
Close；C3 is the first capacitance；C4 is the second capacitance；R4 is grid current-limiting resistance；R5 is grid；F1 is fuse；T4
For the second adjustable transformer；T3 is power frequency high voltage isolating transformer；T5 is common mode choke；R6 is filament.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the technical program is described in detail.
As shown in Figure 1-2, a kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron, the system includes charging electricity
Source, pulse shaping loop, PFN networks, filament heating circuit.
Described charge power supply provides energy to the storage capacitor C2 in pulse shaping loop, and the charge power supply includes first
Adjustable transformer T1, differential mode choke coil L1, commutation diode D1, current-limiting resistance R1；The first described adjustable transformer T1 secondary
One pole, IGBT Q1 emitter stages and the pole common grounds of storage capacitor C2 mono-；Described storage capacitor C2 is electrolytic capacitor, 450V/
220uF；Described differential mode choke coil L1 400mH, 100W.
The pulse shaping loop, boosting isolating transformer T2 primary side windings, storage capacitor C2, IGBT Q1 and fast extensive
Complex resistance R2 constitutes RLC networks, and high-voltage pulse is produced in boosting isolating transformer T2 vice-side windings；Described boosting isolation transformation
Device T2 uses high-voltage ignition coil, 230V/26kV；The fast recovery resistance R2 is acted as in charging process with current-limiting resistance R1 mono-
For charging resistor, during pulse shaping, fast recovery resistance R2, boosting isolating transformer T2 primary side windings, storage capacitor C2
And diode D2 compositions loop so that the boosting quick vanishing of isolating transformer T2 reversing oscillating currents.
Described PFN networks, level electric capacity charges to U, then switchs S1 to hydrogen thyratron grid by self breakdown sphere gap
R5 discharges, and load pulse amplitude is U/2, output pulse t if load matchedpBy level electric capacity C, level inductance L and series m
It is comprehensive to determinePFN network characterization impedances are by formulaIt is determined that, the electric capacity at different levels used is ceramic electricals
Hold, the capacitance of ceramic condenser is 470pF, and inductance at different levels are wound on insulation tube by high pressure silica gel line and are made, and inductance is
1.175uH；In described PFN networks, the first capacitance C3, the second capacitance C4 are respectively 2.5nF, and 40kV DC, R4 are
Grid current-limiting resistance 25 Ω, 40W.
Described filament heating circuit, including fuse F1, the second adjustable transformer T4, power frequency high voltage isolating transformer
T3, common mode choke T5 and filament R6 compositions.Described power frequency high voltage isolating transformer T3, is wound on iron core, primary side around
Group is enamel-covered wire, and vice-side winding is high pressure silica gel line；Described common mode choke T5,400uH, using ferrite core, two-wire
And around the line of coiling is high pressure silica gel line.
The break-make in the control pulse shaping loop of the IGBT Q1, IGBT Q1 collector and emitters two ends parallel connection absorbs
Electric capacity C1 and noninductive resistance R3, is used as the buffer circuit of IGBT shutdown moments.
The triggering of the IGBT Q1 grids, pattern is triggered using light, and the electric trigger signals of 5V of capture card pass through electro-optic module
Be transmitted afterwards by optical fiber, at trigger by opto-electronic conversion after drive IGBT Q1 drive circuits, and then drive IGBT
Q1。
Among one embodiment, a kind of described high-voltage nanosecond pulse trigger particular technique applied to hydrogen thyratron
Index is as follows：
A. trigger pulse：
(1) trigger pulse voltage：- 3kV arrives -10kV；
(2) trigger pulse electric current：<200A；
(3) pulse rise time：~30ns；
(4) Jitter shakes：<5ns；
B. filament：
(1) voltage：AC 0-8V；
(2) heater current max：2.5A；
It is above-mentioned that the Extensible magnetic probe is described in detail with reference to embodiment, it is illustrative rather than limited
, therefore changing and modifications in the case where not departing from present general inventive concept, it should belong within protection scope of the present invention.
Claims (3)
1. a kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron, it is characterised in that：Including charge power supply, pulse shaping
Loop, PFN networks, filament heating circuit, wherein：
Described charge power supply provides energy to the storage capacitor (C2) in pulse shaping loop, and the charge power supply includes first and adjusted
Pressure transformer (T1), differential mode choke coil (L1), commutation diode (D1), current-limiting resistance (R1)；The first described adjustable transformer
(T1) pole of secondary one, IGBT (Q1) emitter stages and the pole common ground of storage capacitor (C2) one；Described storage capacitor (C2) is electricity
Electrolysis condenser, 450V/220uF；Described differential mode choke coil (L1) is 400mH, 100W；
The pulse shaping loop, boosting isolating transformer (T2) primary side winding, storage capacitor (C2), IGBT (Q1) and fast extensive
Complex resistance (R2) constitutes RLC networks, and high-voltage pulse is produced in boosting isolating transformer (T2) vice-side winding；Described boosting isolation
Transformer (T2) uses high-voltage ignition coil, 230V/26kV；It is described it is fast recovery resistance (R2) in charging process with current-limiting resistance
(R1) together as charging resistor, during pulse shaping, soon recover resistance (R2), boosting isolating transformer (T2) primary side around
Group, storage capacitor (C2) and diode (D2) composition loop so that boosting isolating transformer (T2) reversing oscillating current is quick
Vanishing；
Described PFN networks, level electric capacity charges to U, then by self breakdown sphere gap switch (S1) to hydrogen thyratron grid
(R5) discharge, load pulse amplitude is U/2, output pulse t if load matchedpBy level electric capacity C, level inductance L and level
Number m, which is integrated, to be determinedPFN network characterization impedances are by formulaIt is determined that, the electric capacity at different levels used is potteries
Porcelain electric capacity, the capacitance of ceramic condenser is 470pF, and inductance at different levels are wound on insulation tube by high pressure silica gel line and are made, and inductance is
1.175uH；In described PFN networks, the first capacitance (C3) and the second capacitance (C4) are 2.5nF, 40kV DC,
Grid current-limiting resistance (R4) is that 25 Ω, 40W, the second capacitances (C4) are connected on one end that self breakdown sphere gap switchs S1, the
One capacitance (C3) is connected to the other end of PFN network delivery outlets after being connected with grid current-limiting resistance (R4)；
Described filament heating circuit, including fuse (F1), the second adjustable transformer (T4), power frequency high voltage isolating transformer
(T3), common mode choke (T5) and filament (R6), described power frequency high voltage isolating transformer (T3) are wound on iron core, former
Side winding is enamel-covered wire, and vice-side winding is high pressure silica gel line；Described common mode choke (T5) is 400uH, using ferrite magnetic
The heart, Double-wire parallel wound, the line of coiling is high pressure silica gel line.
2. a kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron according to claim 1, it is characterised in that：Institute
State the break-make in IGBT control pulse shapings loop, IGBT collector and emitters two ends parallel connection Absorption Capacitance (C1) and noninductive resistance
(R3), as the buffer circuit of IGBT shutdown moments.
3. a kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron according to claim 1, it is characterised in that：Institute
The triggering of IGBT grids is stated, pattern is triggered using light, the electric trigger signals of 5V of capture card are entered after electro-optic module by optical fiber
Row transmission, at trigger by opto-electronic conversion after drive IGBT drive circuit, and then drive IGBT (Q1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710579472.0A CN107257209A (en) | 2017-07-17 | 2017-07-17 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710579472.0A CN107257209A (en) | 2017-07-17 | 2017-07-17 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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| CN107257209A true CN107257209A (en) | 2017-10-17 |
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ID=60025128
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| CN201710579472.0A Pending CN107257209A (en) | 2017-07-17 | 2017-07-17 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736872A (en) * | 2018-04-26 | 2018-11-02 | 西安微电子技术研究所 | A kind of ignition drive circuit |
| CN109379069A (en) * | 2018-08-21 | 2019-02-22 | 杭州睿笛生物科技有限公司 | A kind of high voltage co-axial switching device based on hydrogen thyratron |
| CN111431509A (en) * | 2020-04-24 | 2020-07-17 | 西安交通大学 | Repetition frequency nanosecond pulse generation circuit based on drift step recovery diode |
| CN112366974A (en) * | 2020-11-14 | 2021-02-12 | 大连理工大学 | Magnetic compression power supply with adjustable pulse width |
| CN113285627A (en) * | 2021-04-12 | 2021-08-20 | 中科石金(安徽)中子技术有限公司 | Pulse power supply system and neutron generator |
| CN116321663A (en) * | 2023-03-31 | 2023-06-23 | 中国工程物理研究院流体物理研究所 | Heavy frequency induction acceleration unit and working method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736872A (en) * | 2018-04-26 | 2018-11-02 | 西安微电子技术研究所 | A kind of ignition drive circuit |
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| CN112366974A (en) * | 2020-11-14 | 2021-02-12 | 大连理工大学 | Magnetic compression power supply with adjustable pulse width |
| CN113285627A (en) * | 2021-04-12 | 2021-08-20 | 中科石金(安徽)中子技术有限公司 | Pulse power supply system and neutron generator |
| CN113285627B (en) * | 2021-04-12 | 2022-03-15 | 中科石金(安徽)中子技术有限公司 | Pulse power supply system and neutron generator |
| CN116321663A (en) * | 2023-03-31 | 2023-06-23 | 中国工程物理研究院流体物理研究所 | Heavy frequency induction acceleration unit and working method thereof |
| CN116321663B (en) * | 2023-03-31 | 2023-11-21 | 中国工程物理研究院流体物理研究所 | Heavy frequency induction acceleration unit and working method thereof |
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