CN104579277A - Single-board multi-way high-voltage power silicon-controlled trigger circuit - Google Patents
Single-board multi-way high-voltage power silicon-controlled trigger circuit Download PDFInfo
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- CN104579277A CN104579277A CN201410852307.4A CN201410852307A CN104579277A CN 104579277 A CN104579277 A CN 104579277A CN 201410852307 A CN201410852307 A CN 201410852307A CN 104579277 A CN104579277 A CN 104579277A
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Abstract
The invention provides a single-board multi-way high-voltage power silicon-controlled trigger circuit and aims to provide a trigger circuit which is large in trigger current, good in trigger synchronicity, high in isolation degree and high in anti-disturbance performance. The trigger circuit is obtained through the following technical scheme. According to the technical scheme, two sets of optical coupler circuits are correspondingly and electrically connected with three sets of current drive circuits to form three trigger circuit bodies with synchronous trigger pulses, two trigger signals in the three trigger circuit bodies are generated through the same on-signal in the mode that the same set of optical coupler circuits drives the two current drive circuits with completely identical circuit forms and circuit parameters, and the turn-off signal optical coupler circuit of another trigger circuit body is sequentially connected with the current drive circuits in series to generate a trigger signal 3; the other two sets of optical coupler circuits are connected with relay drive circuits 1 and 2 respectively in series, gating signal control and trigger signal output end relay short circuit protection are adopted for improving the anti-interference property of the trigger circuit; high isolation optical couplers are adopted in the four sets of optical coupler circuits to increase the isolation degree between input signals and the trigger signals, and a double-way DC/DC power source module supplies power.
Description
Technical field
The present invention relates to a kind of high-voltage power thyristor gating circuit being mainly used in superlaser power pulse power switch.More particularly, the present invention is the high reliability veneer multichannel high-voltage power thyristor gating circuit that can be used under complex electromagnetic environment.
Technical background
The pumping of High Energy Solid-state Lasers generally all needs pulse power switch controlled or switch.The main switch element of composition pulse power switch is multiple high-voltage power controllable silicons, and wherein some controllable silicon needs synchronous triggering, and parallel connection uses, and passes through electric current to increase; Some controllable silicon independently uses again, needs mutually isolated triggering.The voltage that in usual superlaser power supply, pulse power switch bears is greater than 5kV, reaches 20kA by electric current, and the electromagnetic environment residing for circuits for triggering is very complicated, there is the strong interferers of the high tension ignition pulse of more than 30kV and the discharge pulse of 5kV/20kA.Above-mentioned factors all proposes very high requirement to the trigger impulse of circuits for triggering and output.And general thyristor gating circuit isolation lower (3.5kV), reliability are general, easy false triggering under complex electromagnetic environment, be difficult to the requirement meeting pulse power switch and complex electromagnetic environment thereof in superlaser power supply.Therefore, be necessary to design a kind of high reliability veneer multichannel high-voltage power thyristor gating circuit, make it have that large, the in parallel triggering synchronous of trigger current is good, isolation is high, strong anti-interference performance and the feature such as veneer is integrated, solve the special triggering demand of pulse power switch in superlaser power supply.
The present invention is further developing and improving control machines technology.
Summary of the invention
The object of the invention is the weak point existed for above-mentioned prior art, on the basis of general thyristor gating circuit, a kind of high reliability veneer multichannel high-voltage power thyristor gating circuit is provided, make it have that large, the in parallel triggering synchronous of trigger current is good, isolation is high, strong anti-interference performance and the feature such as veneer is integrated, to solve the special triggering demand of pulse power switch and complex electromagnetic environment thereof in superlaser power supply.
Object of the present invention can be reached by following measures: a kind of veneer multichannel high-voltage power thyristor gating circuit, comprise photoelectric coupled circuit, current driving circuit, relay drive circuit, relay protection circuit and height isolate two-way DC/DC power module and input filter circuit thereof, it is characterized in that: 2 groups of 10kV photoelectric coupled circuit correspondence electrical connections, 3 groups of current driving circuits form the synchronous circuits for triggering of three road trigger impulses, triggering signal 1 in three road circuits for triggering and triggering signal 2 open signal by same, two-way circuit form and the identical current driving circuit of circuit parameter is driven to produce by same group of photoelectric coupled circuit, another road circuits for triggering cut-off signals produces triggering signal 3 by one group of 10kV photoelectric coupled circuit sequential series current driving circuit, other two groups of 10kV photoelectric coupled circuit series relay drive circuit 1,2 respectively, adopts gating signal control and triggering signal output relay short-circuit protection to improve the anti-interference of circuits for triggering, above-mentioned 4 groups of 10kV photoelectric coupled circuit adopt 10kV height isolation optocoupler to improve isolation between input signal and triggering signal, and touch block by two-way height isolation DC/DC power supply and power.
The present invention has following beneficial effect compared to prior art:
The present invention adopts high isolation optocoupler and two-way height isolation DC/DC power supply to touch block and improves each to isolation of circuits for triggering; making this circuit can be applicable to ceiling voltage is in the hyperbaric environment of 7.5kV; add gating signal again to control and relay short-circuit protection; make this circuit have very strong anti-interference and good Electro Magnetic Compatibility, complicated electromagnetic environment can be adapted to.
The present invention adopts the isolation between 10kV height isolation optocoupler raising input signal and triggering signal, two-way height isolation DC/DC power supply is adopted to touch block, isolation between raising power supply input with triggering signal and the isolation between two groups of triggering signals, above measure can make the isolation of whole circuits for triggering reach 10kV; The mode adopting capacitance energy storage and pliotron to promote provides the pulse-triggered electric current being greater than 5A; Adopt same signal source and identical energy storage to promote circuit and improve triggering synchronous in parallel; The measures such as gating signal control and triggering signal output relay short-circuit protection are adopted to improve the anti-interference of circuits for triggering; Adopt modular construction three road circuits for triggering to be carried out veneer integrated, integrated level is high, and circuit board size is little, and environmental suitability is strong, can meet various environment for use.
Because triggering signal 1 and triggering signal 2 drive two-way circuit form and the identical current driving circuit of circuit parameter to produce by opening signal with 1 by same group of photoelectric coupled circuit, so both Complete Synchronizations, can two power thyristor T1 and T2 in parallel in trigger impulse power switch.Again due to triggering signal 1 and the electrical isolation degree between triggering signal 2 and triggering signal 3 with 10kV, the power thyristor T3 that triggering signal 3 can be independent in trigger impulse power switch.
Silicon controlled opening process affects very large by its gate pole trigger impulse, strong trigger impulse can reduce device service time, impels Tandem devices simultaneously open-minded; Strong trigger impulse also has reduction device turn-on consumption simultaneously, the effect of enhance device di/dt ability to bear.Therefore it is very necessary for applying synchronous, that forward position is extremely steep, that intensity is enough trigger impulse to devices in parallel.To trigger impulse requirement be: trigger current amplitude: IGM=4-10IGT; The trigger current rise time is lower than 1 μ s.
The trigger impulse of the exportable two-way Complete Synchronization of circuits for triggering of the present invention, ask when it rises and be less than 1 μ s, electric current is close to 5A (testing in simulating in load of 1 Ω), the parallel connection that can be applicable to the power thyristor of tens kilo-amperes triggers, the trigger current of the other road trigger impulse exported and rise time too, can trigger a high-power silicon controlled rectifier.
The present invention adopts and samely opens signal, drive two-way circuit form and the identical current driving circuit of circuit parameter to produce triggering signal 1 and triggering signal 2 and another road circuits for triggering cut-off signals 10kV photoelectric coupled circuit sequential series current driving circuit by same group of photoelectric coupled circuit and produce triggering signal 3, solve the parallel drive of two high-voltage power controllable silicons (easily extensible is multiple) and the isolation Trigger Problems of a separate high pressure power thyristor (easily extensible is multiple), there is trigger current large, triggering synchronous in parallel is good, isolation is high, strong anti-interference performance and the integrated feature of veneer.
The present invention is provided with the storage capacitor of 470 μ F/50V often organizing in current driving circuit, it can make the trigger current being greater than 3A maintain for 20 μ s above times, and rising edge is less than 1 μ s, and the power thyristor fast and reliable that it can be made to trigger is open-minded.
Circuits for triggering integrated level of the present invention is high, and circuit board overall dimension is 150mm × 130mm × 30mm, adopts locking strip mounting means, easy to maintenance.This circuit adopts modularized design, and reliability is high.
Accompanying drawing explanation
Fig. 1 is power thyristor circuits for triggering operation principle schematic diagram of the present invention.
Fig. 2, Fig. 3 are power thyristor circuits for triggering of the present invention actual measurement trigger waveform figure.
Embodiment
In FIG; veneer multichannel high-voltage power thyristor gating circuit, primarily of 4 groups of 10kV photoelectric coupled circuit, 3 groups of current driving circuits (containing storage capacitor), 2 road relay drive circuits, 3 road relay protection circuits and high isolation two-way DC/DC power modules and input filter circuit composition thereof.Current driving circuit provides trigger current by TIP107 pliotron.2 groups of 10kV photoelectric coupled circuit correspondence electrical connections, 3 groups of current driving circuits form the synchronous circuits for triggering of three road trigger impulses, triggering signal 1 in three road circuits for triggering and triggering signal 2 open signal by same, drive two-way circuit form and the identical current driving circuit of circuit parameter to produce by same group of photoelectric coupled circuit, another road circuits for triggering cut-off signals 10kV photoelectric coupled circuit sequential series current driving circuit produces triggering signal 3; Other two groups of 10kV photoelectric coupled circuit series relay drive circuit 1,2 respectively, adopts gating signal control and triggering signal output relay short-circuit protection to improve the anti-interference of circuits for triggering; Above-mentioned 4 groups of 10kV photoelectric coupled circuit adopt 10kV height isolation optocoupler to improve isolation between input signal and triggering signal, and touch block by two-way height isolation DC/DC power supply and power.Every road can supply 4 groups of current driving circuit electricity consumptions, makes these circuits for triggering have larger extended capability in silicon controlled number of bursts.Be provided with one and make the trigger current being greater than 3A maintain for 20 μ s above times often organizing in current driving circuit, rising edge is less than 1 μ s, the storage capacitor of 470 μ F/50V.Triggering signal 1 and triggering signal 2 are driven by same group of circuit parameter same current drive circuit, two power thyristor T1 and T2 in parallel in synchronous trigger impulse power switch.Triggering signal 1 and have the electrical isolation degree of 10kV between triggering signal 2 and triggering signal 3, triggering signal 3 can independent power thyristor T3 in trigger impulse power switch.
10kV photoelectric coupled circuit adopts Opi110C linear optical coupling device to realize the high-isolation of 10kV, make triggering signal 1 and have the electrical isolation degree of 10kV between triggering signal 2 and triggering signal 3, triggering signal 3 can power thyristor T3 separately in trigger impulse power switch.
Optocoupler front end adopts resistor-capacitor diode protective circuit improve the antijamming capability of input and protect optocoupler; Optocoupler rear end adopts 3DK9H switch triode to improve and exports driving force.
The output that relay protection circuit can be triggering signal provides the most directly and the most reliable short-circuit protection.Two normally-closed contacts of relay are parallel to the triggering signal output of power thyristor, can ensure no matter whether circuits for triggering power on like this, triggering signal output is all in short-circuit condition, only have when the gating signal of external system is come, the normally-closed contact of relay just disconnects, and makes triggering signal output exit short-circuit condition.The setting of gating circuit and relay protection circuit; the false triggering of power thyristor can be prevented completely; the reliability and stability of effective raising pulse power switch work; ensure that multiplex pulse power switch should illustrate the uniqueness of middle selection in the drawings; this circuit and its pulse power switch triggered is made all to have very strong anti-interference and good Electro Magnetic Compatibility; complicated electromagnetic environment can be adapted to, guarantee the safety of equipment and personnel under high pressure macro-energy environment.
Triggering signal 1 and triggering signal 2 drive two-way circuit form and the identical current driving circuit of circuit parameter to produce by opening signal with 1 by same group of photoelectric coupled circuit, both Complete Synchronizations, can two power thyristor T1 and T2 in parallel in trigger impulse power switch.Again due to triggering signal 1 and the electrical isolation degree between triggering signal 2 and triggering signal 3 with 10kV, triggering signal 3 can independent power thyristor T3 in trigger impulse power switch.2 groups of 10kV photoelectric coupled circuit correspondence electrical connections, 3 groups of current driving circuits form the synchronous circuits for triggering of three road trigger impulses; other two groups of 10kV photoelectric coupled circuit series relay drive circuit 1,2 respectively; gating signal control and triggering signal output relay short-circuit protection is adopted to improve the anti-interference of circuits for triggering; above-mentioned 4 groups of 10kV photoelectric coupled circuit adopt 10kV height isolation optocoupler to improve isolation between input signal and triggering signal, and touch block by two-way height isolation DC/DC power supply and power.
Consult Fig. 2, Fig. 3.Current driving circuit provides trigger current by TIP107 pliotron, and its maximum IC can reach 8A, and available actual trigger current can reach 5A.Because the power module of miniaturization can not provide so large electric current, so often organizing in current driving circuit the storage capacitor being provided with 470 μ F/50V, it can make the trigger current being greater than 3A maintain for 20 μ s above times, and rising edge is less than 1 μ s, the power thyristor fast and reliable that it can be made to trigger is open-minded.The exportable two-way Complete Synchronization of two-way circuits for triggering that photoelectric coupled circuit is driven by same group of photoelectric coupled circuit, rise time are less than 1 μ s, and electric current, close to the trigger impulse of 5A, is tested in simulating in load of 1 Ω, export triggering waveform as shown in Figure 2.The generation triggering signal 3 of leading up to 10kV photoelectric coupled circuit sequential series current driving circuit in addition that cut-off signals exports, the trigger current of trigger impulse and rise time too, can trigger a high-power silicon controlled rectifier.
Whole circuits for triggering veneer is integrated on the circuit board of one piece of 150mm × 130mm, and circuit element is arranged regular, and installation locking strip is equipped with on both sides, can meet vehicle environment requirement.
Whole circuit board is powered by one piece high isolation two-way DC/DC power module, and its input voltage range reaches 20V to 28V, strong adaptability.Export and adopt two-way 24V voltage stabilizing to export, single channel maximum output current is 0.4A, and every road can supply 4 groups of current driving circuit electricity consumptions, makes these circuits for triggering have larger extended capability in silicon controlled number of bursts.
Claims (10)
1. a veneer multichannel high-voltage power thyristor gating circuit, comprise photoelectric coupled circuit, current driving circuit, relay drive circuit, relay protection circuit and height isolate two-way DC/DC power module and input filter circuit thereof, it is characterized in that: 2 groups of photoelectric coupled circuit correspondence electrical connections, 3 groups of current driving circuits form the synchronous circuits for triggering of three road trigger impulses, triggering signal 1 in three road circuits for triggering and triggering signal 2 open signal by same, two-way circuit form and the identical current driving circuit of circuit parameter is driven to produce by same group of photoelectric coupled circuit, another road circuits for triggering cut-off signals photoelectric coupled circuit sequential series current driving circuit produces triggering signal 3, other two groups of photoelectric coupled circuit series relay drive circuit 1,2 respectively, adopts gating signal control and triggering signal output relay short-circuit protection to improve the anti-interference of circuits for triggering, above-mentioned 4 groups of photoelectric coupled circuit adopt high isolation optocoupler to improve isolation between input signal and triggering signal, and touch block by two-way height isolation DC/DC power supply and power.
2. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, is characterized in that: optocoupler front end adopts resistor-capacitor diode protective circuit improve the antijamming capability of input and protect optocoupler.
3. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 2, is characterized in that: optocoupler rear end adopts 3DK9H switch triode to improve and exports driving force.
4. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, is characterized in that: current driving circuit provides trigger current by TIP107 pliotron.
5. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, it is characterized in that: be provided with one and make the trigger current being greater than 3A maintain for 20 μ s above times often organizing in current driving circuit, rising edge is less than 1 μ s, the storage capacitor of 470 μ F/50V.
6. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, it is characterized in that: triggering signal 1 and triggering signal 2 are driven by same group of circuit parameter same current drive circuit, two power thyristor T1 and T2 in parallel in synchronous trigger impulse power switch.
7. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, it is characterized in that: photoelectric coupled circuit adopts Opi110C linear optical coupling device to realize the high-isolation of 10kV, make triggering signal 1 and there is the electrical isolation degree of 10kV, the power thyristor T3 in triggering signal 3 trigger impulse power switch between triggering signal 2 and triggering signal 3.
8. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1; it is characterized in that: the output of triggering signal is in series with the relay protection circuit providing short-circuit protection; two normally-closed contacts of relay are parallel to the triggering signal output of power thyristor; ensure no matter whether circuits for triggering power on; triggering signal output is all in short-circuit condition; only have when the gating signal of external system is come; the normally-closed contact of relay just disconnects, and makes triggering signal output exit short-circuit condition.
9. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, is characterized in that: circuits for triggering cut-off signals produces triggering signal 3 by one group of 10kV photoelectric coupled circuit sequential series current driving circuit, triggers a high-power silicon controlled rectifier.
10. veneer multichannel high-voltage power thyristor gating circuit as claimed in claim 1, it is characterized in that: the height isolation two-way DC/DC power module that whole circuit board reaches 20V to 28V by one piece of input voltage range is powered, export and adopt two-way 24V voltage stabilizing to export, single channel maximum output current is 0.4A, and every road can supply 4 groups of current driving circuit electricity consumptions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852307.4A CN104579277A (en) | 2014-12-31 | 2014-12-31 | Single-board multi-way high-voltage power silicon-controlled trigger circuit |
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| CN201410852307.4A CN104579277A (en) | 2014-12-31 | 2014-12-31 | Single-board multi-way high-voltage power silicon-controlled trigger circuit |
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| CN104579277A true CN104579277A (en) | 2015-04-29 |
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| CN201410852307.4A Pending CN104579277A (en) | 2014-12-31 | 2014-12-31 | Single-board multi-way high-voltage power silicon-controlled trigger circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689725A (en) * | 2017-08-17 | 2018-02-13 | 北京合康亿盛技术有限公司 | Frequency converter controllable silicon synchronous triggering device in parallel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107689725A (en) * | 2017-08-17 | 2018-02-13 | 北京合康亿盛技术有限公司 | Frequency converter controllable silicon synchronous triggering device in parallel |
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Application publication date: 20150429 |