CN207218564U - 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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- CN207218564U CN207218564U CN201720861755.XU CN201720861755U CN207218564U CN 207218564 U CN207218564 U CN 207218564U CN 201720861755 U CN201720861755 U CN 201720861755U CN 207218564 U CN207218564 U CN 207218564U
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 22
- 239000001257 hydrogen Substances 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- 230000015556 catabolic process Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000012512 characterization method Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000000280 densification Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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Abstract
The utility model 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 problems, such as that 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, and 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 isolates 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 utility model belongs to technical field of pulse power, more particularly to a kind of high-voltage nanosecond arteries and veins applied to hydrogen thyratron
Rush trigger.
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 form, 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, in light weight, small volume, be widely used in scientific research, army
Thing, medical field and civilian high-tech product.The conducting of hydrogen thyratron is entered using amplitude, steep-front, the pulse of low jitter more
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；It is relatively slow to export rising edge of a pulse, amplitude is unstable, and shake is 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, adjustable free space is big, stable and reliable in work.
Utility model content
The purpose of this utility model is for overcome the deficiencies in the prior art, devises a kind of height applied to hydrogen thyratron
Nanosecond pulse trigger is pressed, realizes that pulse output voltage is reliable and stable, heater current is flexibly adjustable.
For achieving the above object, technical scheme is used by the utility model：It is a kind of applied to hydrogen thyratron
High-voltage 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 forms 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 resistance R2 that recovers is acted as in charging process with current-limiting resistance R1 mono-
It is fast to recover resistance R2, boosting isolating transformer T2 primary side windings, storage capacitor C2 during pulse shaping for charging resistor
And diode D2 compositions loop so that the boosting quick vanishing of isolating transformer T2 reversing oscillating currents.
Described PFN networks, level electric capacity charge to U, then switch S1 to hydrogen thyratron grid by self breakdown sphere gap
R5 discharges, and load pulse amplitude is U/2 if load matched, output pulse tpBy 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 ceramics
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, 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 both ends parallel connection Absorption Capacitance C1 and
Noninductive resistance R3, the buffer circuit as IGBT shutdown moments.
The triggering of the IGBT grids, pattern is triggered using light, the 5V electricity trigger signals of capture card are after electro-optic module
Be transmitted by optical fiber, at trigger by opto-electronic conversion after drive IGBT drive circuit, and then drive IGBT Q1.
The advantages of the utility model and good effect are：
(1) the storage capacitor charging voltage in pulse trigger of the present utility model is low, solves normal pulsed very well and touches
The problem of hair device isolating transformer primary side needs high pressure so that the pulse trigger is easy to densification, miniaturization.
(2) pulse shaping loop of the present utility model is exported using quick IGBT as the switch opened and turned off
Pulse jitter is small, amplitude stability, while the IGBT pressure voltages needed are low, and cost is low.
(3) PFN networks are passed through in the output pulse of pulse trigger of the present utility model, 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.
(4) pulse trigger of the present utility model is integrated with hydrogen thyratron filament heating circuit, and the circuital current can be fine
Ground is adjusted, while isolates tens of kV high pressure.
(5) pulse trigger of the present utility model exports to suspend, and can meet the different occasions of needs positive negative pulse stuffing.
(6) pulse trigger of the present utility model, by changing charge power supply voltage, output pulse can easily be changed
Amplitude.
Brief description of the drawings
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is a timing chart of the present utility model.
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；C5, C6 ... Cn-1, Cn level electric capacity；L5, L6 ... Ln-1 level inductance；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 include 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 forms 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 resistance R2 that recovers is acted as in charging process with current-limiting resistance R1 mono-
It is fast to recover resistance R2, boosting isolating transformer T2 primary side windings, storage capacitor C2 during pulse shaping for charging resistor
And diode D2 compositions loop so that the boosting quick vanishing of isolating transformer T2 reversing oscillating currents.
Described PFN networks, level electric capacity charge to U, then switch S1 to hydrogen thyratron grid by self breakdown sphere gap
R5 discharges, and load pulse amplitude is U/2 if load matched, output pulse tpBy 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 both ends are in parallel to be absorbed
Electric capacity C1 and noninductive resistance R3, the buffer circuit as IGBT shutdown moments.
The triggering of the IGBT Q1 grids, pattern is triggered using light, the 5V electricity trigger signal of capture card passes 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 the utility model general plotting, should belong to the scope of protection of the utility model it
It is interior.
Claims (3)
- A kind of 1. 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) forms 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 recover resistance (R2) in charging process with current-limiting resistance (R1) together as charging resistor, during pulse shaping, recover soon 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 charge to U, then by self breakdown sphere gap switch (S1) to hydrogen thyratron grid (R5) discharge, load pulse amplitude is U/2 if load matched, output pulse tpBy level electric capacity C, level inductance L and level Number m synthesis determinesPFN 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.
- A kind of 2. 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 both ends parallel connection Absorption Capacitance (C1) and noninductive resistance (R3), the buffer circuit as IGBT shutdown moments.
- A kind of 3. 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 5V electricity trigger signals 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).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720861755.XU CN207218564U (en) | 2017-07-17 | 2017-07-17 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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| CN201720861755.XU CN207218564U (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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257209A (en) * | 2017-07-17 | 2017-10-17 | 中国科学技术大学 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257209A (en) * | 2017-07-17 | 2017-10-17 | 中国科学技术大学 | A kind of high-voltage nanosecond pulse trigger applied to hydrogen thyratron |
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