CN106301306A - One and the matching used active triggering device of Triggered Vacuum Switch - Google Patents
One and the matching used active triggering device of Triggered Vacuum Switch Download PDFInfo
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- CN106301306A CN106301306A CN201610866449.5A CN201610866449A CN106301306A CN 106301306 A CN106301306 A CN 106301306A CN 201610866449 A CN201610866449 A CN 201610866449A CN 106301306 A CN106301306 A CN 106301306A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/04—Modifications for accelerating switching
- H03K17/0403—Modifications for accelerating switching in thyristor switches
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- 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
- H03K17/72—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 having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
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Abstract
The invention discloses a kind of and matching used active triggering device of Triggered Vacuum Switch, including: optical signal generation circuit, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；The input of thyristor gating circuit is connected to the outfan of optical signal generation circuit, thyristor gating circuit successively exports the first pulse signal and the second pulse signal respectively, the input of pulse-generating circuit and the input of active freewheeling circuit are connected to the outfan of thyristor gating circuit, the outfan of pulse-generating circuit and the outfan of active freewheeling circuit are used to connect the input of Triggered Vacuum Switch, pulse-generating circuit triggers signal according to the first output of pulse signal first and controls Triggered Vacuum Switch breakdown triggering along face, source freewheeling circuit triggers signal according to the second output of pulse signal second and controls Triggered Vacuum Switch and be triggered along face afterflow.The trigger voltage of the present invention may be up to 15kV to 20kV, and trigger voltage, up to 680A, triggers device volume little.
Description
Technical field
The invention belongs to highpowerpulse technical field, support the use with Triggered Vacuum Switch more particularly, to one
Active triggering device.
Background technology
Triggered Vacuum Switch is a kind of new device Vacuum Relay Technique and three-electrode spark technology combined,
And being applied in highpowerpulse system, the triggering mode of Triggered Vacuum Switch has laser triggering and pulse-triggered two
Kind, both differences are that the former uses laser to irradiate and produces initial plasma, and pulse-triggered is by puncturing along face generation
Initial plasma.For the trigger source of Triggered Vacuum Switch, its principal character is by trigger voltage, two scales of trigger current
Levy.
There is following technical problem in the work of Triggered Vacuum Switch: when (1) Triggered Vacuum Switch uses in power system,
Owing to switching voltage can become industrial-frequency alternating current, voltage can become negative pressure, the in the case working method of Triggered Vacuum Switch
Becoming negative polarity to trigger, Triggered Vacuum Switch is unreliable at negative polarity MODE of operation.(2) the opening not of Triggered Vacuum Switch
Should pursue trigger voltage simply big, too high voltages can make Triggered Vacuum Switch afterbody discharge.
Summary of the invention
For the defect of prior art, it is an object of the invention to provide a kind of matching used with Triggered Vacuum Switch has
Device is triggered in source, it is intended to solving Triggered Vacuum Switch can not the most reliable conduction problem under positive condition.
The invention provides a kind of and matching used active triggering device of Triggered Vacuum Switch, including: optical signal produces
Circuit, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；The input of described thyristor gating circuit connects
To the outfan of optical signal generation circuit, described thyristor gating circuit successively exports the first pulse signal and the second pulse respectively
Signal, the input of pulse-generating circuit and the input of active freewheeling circuit are connected to the output of thyristor gating circuit
Holding, the outfan of pulse-generating circuit and the outfan of active freewheeling circuit are used to connect the input of Triggered Vacuum Switch,
Described pulse-generating circuit triggers signal according to described first output of pulse signal first and controls Triggered Vacuum Switch and puncture tactile
Sending out along face, described active freewheeling circuit triggers signal according to described second output of pulse signal second and controls Triggered Vacuum Switch
It is triggered along face afterflow.
Pulse-generating circuit, by opening IGCT, makes storage capacitor through pulse transformer to triggering creeping discharge.Touching
To triggering creeping discharge after sending out surface breakdown, during to improve the quantity of initial plasma and to increase the conducting triggered along face
Between.
Further, described optical signal generation circuit includes: the first trigger U1, the second trigger U2, the 3rd triggering
Device U3, the first not gate U4, the second not gate U5, the first fibre optical transmission head D1, the second fibre optical transmission head D2, Guan Bi switch S1, electricity R1、
Resistance R2, electric capacity C1, resistance R3, electric capacity C2, resistance R4, electric capacity C3, resistance R5With resistance R6；The power supply of described first trigger U1
End VCCBeing connected to 5V voltage, the CLR end of described first trigger U1 is connected to 5V voltage, the rising edge of described first trigger U1
Input 1A is connected to 5V voltage by Guan Bi switch S1, and the trailing edge input 1B of described first trigger U1 passes through resistance R1
It is connected to 5V voltage, the trailing edge input 1B also ground connection of described first trigger U1；Described first trigger U1's is external fixed
Time resistance mouth 1Rext/CextBy resistance R2It is connected to 5V voltage, the external timing capacitor mouth 1C of described first trigger U1extLogical
Cross electric capacity C1It is connected to 5V voltage；The power end V of described second trigger U2CCIt is connected to 5V voltage, described second trigger U1
CLR end be connected to 5V voltage, the rising edge input 1A of described second trigger U2 is connected to described first trigger U1's
The trailing edge input 1B ground connection of positive output end 1Q, described second trigger U2；The external timing electricity of described second trigger U2
Resistance mouth 1Rext/CextBy resistance R3It is connected to 5V voltage, the external timing capacitor mouth 1C of described second trigger U2extBy electricity
Hold C2It is connected to 5V voltage；The power end V of described 3rd trigger U3CCIt is connected to 5V voltage, the CLR of described 3rd trigger U3
End is connected to 5V voltage, and the rising edge input 1A of described 3rd trigger U3 is connected to 5V voltage, described 3rd trigger U3
Trailing edge input 1B be connected to the positive output end 1Q of the first trigger U1；The external timing resistance of described 3rd trigger U3
Mouth 1Rext/CextBy resistance R4It is connected to 5V voltage, the external timing capacitor mouth 1C of described 3rd trigger U3extPass through electric capacity
C3It is connected to 5V voltage；The input of described first not gate U4 is connected to the positive output end 1Q of the second trigger U2, and described first
The negative electrode of fibre optical transmission head D1 is connected to the outfan of described first not gate U4, and the anode of described first fibre optical transmission head D1 passes through
Described resistance R5 is connected to 5V voltage；The input of described second not gate U5 is connected to the positive output end 1Q of the 3rd trigger U3,
The negative electrode of described second fibre optical transmission head D2 is connected to the outfan of described second not gate U5, described second fibre optical transmission head D2's
Anode is connected to 5V voltage by described resistance R6.
Further, described thyristor gating circuit includes: fiber-optic signal receives head U6, metal-oxide-semiconductor Q, metal-oxide-semiconductor driving core
Sheet U7, inductance L1, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15、
Electric capacity C4, electric capacity C5, light emitting diode D3, diode D4, diode D5, diode D6, diode D8, diode D9, voltage stabilizing two pole
Pipe D7With metal-oxide-semiconductor Q pulse transformer T1；Described electric capacity C4One end by the resistance R that is sequentially connected in series7With inductance L1Connect
To 15V voltage, described electric capacity C4Other end ground connection；Light emitting diode D3Anode by resistance R8It is connected to described electric capacity C4
One end, light emitting diode D3Minus earth；Resistance R is passed through in one end of the armature winding of metal-oxide-semiconductor Q pulse transformer T19Connect
To described electric capacity C4One end, the other end of the armature winding of metal-oxide-semiconductor Q pulse transformer T1 is connected to the drain electrode of metal-oxide-semiconductor Q；Two
Pole pipe D4Negative electrode be connected to one end of armature winding of T1, diode D4Anode by resistance R10It is connected to the leakage of metal-oxide-semiconductor Q
Pole；The source ground of metal-oxide-semiconductor Q, the grid of metal-oxide-semiconductor Q passes through resistance R13It is connected to the outfan OUT of U7；Zener diode D7's
Negative electrode is connected to the grid of metal-oxide-semiconductor Q, Zener diode D7Plus earth；Described resistance R12With described Zener diode D7And
Connection connects；Described diode D5Negative electrode be connected to one end of secondary windings of T1, described diode D5Anode be connected to T1's
The other end of secondary windings, described diode D6Anode be connected to one end of secondary windings of T1, described resistance R11One end
With described diode D6Negative electrode connect after as the output head anode of described thyristor gating circuit；Described resistance R11Another
End is connected to the other end of the secondary windings of T1；Fiber-optic signal receives the power end Vcc of head U6 and is connected to 5V voltage, fiber-optic signal
Receive the ground end GND ground connection of head U6；Electric capacity C5Be connected to described fiber-optic signal receive head U6 power end Vcc with ground end GND it
Between；Diode D8With diode D9It is sequentially connected in series between 5V voltage and ground, diode D8With diode D9Be connected in series
The DATA end receiving head U6 with fiber-optic signal is held to be connected；Resistance R15It is connected to the DATA end of 5V voltage and fiber-optic signal reception head U6
Between；The power end of metal-oxide-semiconductor driving chip U7 connects 15V voltage, and the input IN of metal-oxide-semiconductor driving chip U7 is connected to optical fiber letter
Number receive head U6 DATA end, the ground end ground connection of metal-oxide-semiconductor driving chip U7；Resistance R14It is connected to the outfan of 15V voltage and U7
Between OUT.
Further, described pulse-generating circuit includes: IGCT SCR1, electric capacity C7, diode D10And pulse transforming
Device T2；Described IGCT SCR1Anode as described pulse-generating circuit input anode, described IGCT SCR1Negative electrode even
It is connected to pulse transformer T2One end of armature winding, described electric capacity C7One end be connected to described IGCT SCR1Anode, two
Pole pipe D10Negative electrode be connected to pulse transformer T2One end of armature winding, described electric capacity C7The other end, diode D10's
Anode and pulse transformer T2Armature winding the other end connect after as described pulse-generating circuit input cathode；Described
Pulse transformer T2Secondary windings as the outfan of described pulse-generating circuit.
Further, active freewheeling circuit includes: diode D11, diode D12, diode D13, diode D14, resistance
R16, resistance R17, resistance R18, resistance R19, resistance R20, diode D15, electric capacity C8, IGCT SCR2, diode D15, resistance R21With
Transformator T3；Diode D11Negative electrode as the input anode of described active freewheeling circuit, diode D11Anode by depending on
The diode D of secondary series connection12, diode D13With diode D14It is connected to IGCT SCR2Negative electrode, diode D15Negative electrode connect
To IGCT SCR2Anode, diode D15Anode by resistance R21It is connected to transformator T3One end of armature winding；Electricity
Resistance R16With diode D11It is connected in parallel；Resistance R17With diode D12It is connected in parallel；Resistance R18With diode D13It is connected in parallel；Electricity
Resistance R19With diode D14It is connected in parallel；Resistance R20One end be connected to IGCT SCR2Negative electrode, diode D15Negative electrode connect
To IGCT SCR2Negative electrode, electric capacity C8One end be connected to diode D15Negative electrode；Resistance R20The other end, diode D15's
Anode and electric capacity C8The other end be connected to transformator T3The other end of armature winding；Transformator T3Secondary windings conduct
The outfan of described active freewheeling circuit.
Multiple diodes and an IGCT ensure that electric capacity discharges reliably and one-way flow.Multiple resistance are with diode also
Join to ensure that diode dividing potential drop is uniformly avoided damaging.The two-way sent triggers signal and has stable time difference so that pulse is produced
It is adjustable along the face time that the pulse of raw circuit and the pulse of active freewheeling circuit arrive triggering, prevents overvoltage from damaging semiconductor device
Part.Vibration occurs in circuit when, reverse current through fly-wheel diode release.Utilize monostable flipflop to produce stably may be used
The pulse with certain time difference of regulation.Optical signal by being converted to the triggering signal of metal-oxide-semiconductor, the voltage signal of IGCT by
Bigger electric capacity is given, and improves the load-carrying ability of output.
The invention provides a kind of trigger source that big trigger energy can be provided, it is ensured that Triggered Vacuum Switch is in positive polarity work
When making, a hundred per cent is the most open-minded, triggers success rate and effectively promote under negative polarity mode of operation, touching of active afterflow trigger source
Generating pressure may be up to 15kV to 20kV, trigger voltage up to 680A, ON time during triggering, compared to other have no chance afterflow trigger
Source operating characteristic is significantly improved, and it triggers device and has accomplished miniaturization, can extensively coordinate with Triggered Vacuum Switch
Use.
Accompanying drawing explanation
Fig. 1 is the principle frame of matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides
Figure.
Fig. 2 is that in matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides, optical signal produces
The physical circuit schematic diagram of raw circuit.
Fig. 3 is that in matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides, IGCT touches
The physical circuit schematic diagram of Power Generation Road.
Fig. 4 is pulses generation in matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides
The physical circuit figure of circuit and active freewheeling circuit.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Matching used with the Triggered Vacuum Switch active triggering provided for the further description embodiment of the present invention
Device, in conjunction with accompanying drawing and instantiation, details are as follows:
Fig. 1 shows the principle of matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides
Block diagram, for convenience of description, illustrate only the part relevant to the embodiment of the present invention, and details are as follows:
Active triggering device matching used with Triggered Vacuum Switch includes: optical signal generation circuit, IGBT group electricity
Road, pulse-generating circuit and active freewheeling circuit；The input of thyristor gating circuit is connected to the defeated of optical signal generation circuit
Going out end, thyristor gating circuit successively exports the first pulse signal and the second pulse signal, the input of pulse-generating circuit respectively
End and the input of active freewheeling circuit are connected to the outfan of thyristor gating circuit, the outfan of pulse-generating circuit and
The outfan of active freewheeling circuit is used to connect the input of Triggered Vacuum Switch, and pulse-generating circuit is believed according to the first pulse
Number output the first triggering signal also controls Triggered Vacuum Switch breakdown triggering along face, and source freewheeling circuit is defeated according to the second pulse signal
Go out the second triggering signal and control Triggered Vacuum Switch and be triggered along face afterflow.
Optical signal generation circuit produces optical signal, is delivered to two set thyristor gating circuits, two set IGCTs by optical fiber
Triggering circuit and successively produce pulse, first pulse-generating circuit triggers, and breakdown triggering is along face, and the most active continuous current circuit triggers,
It is triggered along face afterflow.The two-way that optical signal circuit sends triggers signal and has stable time difference so that pulse-generating circuit
Pulse and active freewheeling circuit pulse arrive trigger adjustable along the face time, prevent overvoltage damage semiconductor device.
Optical signal generation circuit is for being converted into optical signal by button signal, and optical signal processing circuit is used for receiving signal also
Produce electric pulse by a small margin and open IGCT.Optical signal generation circuit, utilizes monostable flipflop generation to stablize adjustable
There is the pulse of certain time difference.Optical signal is by being converted to the triggering signal of metal-oxide-semiconductor, and the voltage signal of IGCT is by bigger
Electric capacity is given, and improves the load-carrying ability of output.Fig. 2 shows the physical circuit of optical signal generation circuit, including: first touches
Send out device U1, the second trigger U2, the 3rd trigger U3, the first not gate U4, the second not gate U5, the first fibre optical transmission head D1, second
Fibre optical transmission head D2, Guan Bi switch S1, electricity R1, resistance R2, electric capacity C1, resistance R3, electric capacity C2, resistance R4, electric capacity C3, resistance R5, electricity
Resistance R6；
The power end VCC of the first trigger U1 is connected to 5V voltage, and the CLR end of the first trigger U1 is connected to 5V voltage,
The rising edge input 1A of the first trigger U1 is connected to 5V voltage by Guan Bi switch S1, and the trailing edge of the first trigger U1 is defeated
Enter to hold 1B to pass through resistance R1It is connected to 5V voltage, the trailing edge input 1B also ground connection of the first trigger U1；First trigger U1
External timing resistance mouth 1Rext/CextBy resistance R2It is connected to 5V voltage, the external timing capacitor mouth of the first trigger U1
1CextBy electric capacity C1It is connected to 5V voltage；
The power end VCC of the second trigger U2 is connected to 5V voltage, and the CLR end of the second trigger U1 is connected to 5V voltage,
The rising edge input 1A of the second trigger U2 is connected to the positive output end 1Q of the first trigger U1, the decline of the second trigger U2
Along input 1B ground connection；The external timing resistance mouth 1R of the second trigger U2ext/CextBy resistance R3It is connected to 5V voltage, the
The external timing capacitor mouth 1C of two trigger U2extBy electric capacity C2It is connected to 5V voltage；
The power end VCC of the 3rd trigger U3 is connected to 5V voltage, and the CLR end of the 3rd trigger U3 is connected to 5V voltage,
The rising edge input 1A of the 3rd trigger U3 is connected to 5V voltage, and the trailing edge input 1B of the 3rd trigger U3 is connected to
The positive output end 1Q of one trigger U1；The external timing resistance mouth 1R of the 3rd trigger U3ext/CextBy resistance R4It is connected to 5V
Voltage, the external timing capacitor mouth 1C of the 3rd trigger U3extBy electric capacity C3It is connected to 5V voltage；
Wherein, the first trigger U1, the second trigger U2 and the 3rd trigger U3 all can use monostable trigger chip,
The R being attached thereto respectively2And C1、R3And C2、R4And C3Product determine the temporary stable state duration of monostable flipflop.The signal of U1
Outfan 1Q is simultaneously connected with the trailing edge input 1B of rising edge input 1A and U3 of U2；The output of monostable trigger chip U1
The width of signal determines to change the time difference of optical signal generation circuit two paths of signals output, and this signal width is by changing R2Size
It is adjusted.The output signal of the first not gate U4 and the second not gate U5 diode D by fibre optical transmission head1、D2With resistance R5、
R6It is connected to 5V power supply.At Guan Bi switch S1When U1 enter a rising pulses, U1 exports one and narrower is about 2 μ s pulses,
The rising edge of this pulse triggers U2, and trailing edge triggers U3, and U2, U3 export a high level pulse, and high level pulse passes through not gate
Chip U4, U5 become low level pulse so that LED lighting produces optical signal.
Matching used with the Triggered Vacuum Switch active triggering device that the embodiment of the present invention provides there are two set IGCTs
Triggering circuit, the optical signal of reception is respectively from D1And D2, the principle of this circuit is that optical fiber receives head reception signal, conversion
The signal of telecommunication, by driving metal-oxide-semiconductor to produce pulse, reaches to trigger the purpose of IGCT through pulse transformer output.Wherein, IGCT
Trigger the physical circuit of circuit as it is shown on figure 3, include: fiber-optic signal receives head U6, metal-oxide-semiconductor driving chip U7, inductance L1, resistance
R7、R8、R9、R10、R11、R12、R13、R14、R15, electric capacity C4、C5, light emitting diode D3, diode D4、D5、D6、D8、D9Voltage stabilizing two pole
Pipe D7, metal-oxide-semiconductor Q pulse transformer T1.
The power supply of 15V is connected to electric capacity C through current-limiting inductance and resistance4One end, resistance R8Connect then with light emitting diode
And at electric capacity C4Two ends；C4Through a resistance R9It is connected to pulse transformer T1, it is then passed through a metal-oxide-semiconductor Q ground connection, two poles
Pipe D4With resistance R10After series connection and in transformator T1Input；Zener diode D7With resistance R12It is connected in parallel on the grid of metal-oxide-semiconductor
Between pole and source electrode；Diode D5It is connected in parallel on the outfan of transformator, diode D6It is connected to transformator assistant formula, D6The other end and electricity
Resistance R11It is connected, R11The other end be connected with the other end of transformator；The signal output part of U6 passes through diode D8、D9It is connected to 5V
With on earth potential；U7 is metal-oxide-semiconductor driving chip, and input passes through pull-up resistor R15Being connected to 5V power supply, outfan is through pull-up
Resistance R14It is connected to 15V power supply, through current-limiting resistance R13It is connected to the grid of metal-oxide-semiconductor Q.
The power supply of 15V is connected to electric capacity C through current-limiting inductance and resistance4One end, resistance R8Connect then with light emitting diode
And at electric capacity C4Two ends；C4After being fully charged, the triggering pulse for producing provides energy, resistance R8Relatively big, to C4Impact can
To disregard, D3The display lamp normally powered on for circuit.C4Through a resistance R9It is connected to pulse transformer T1, it is then passed through one
Individual metal-oxide-semiconductor Q ground connection, diode D4With resistance R10After series connection and in transformator T1Input；D in circuit4And R10Work
With being the effect playing reverse afterflow when loop generation vibration, the effect of metal-oxide-semiconductor Q is that the loop generation that make pulse produces is touched
Send out the pulse of pulse.Zener diode D7With resistance R12It is connected in parallel between the grid of metal-oxide-semiconductor and source electrode；D7Effect be to maintain grid
Voltage between pole and source electrode, prevents from damaging metal-oxide-semiconductor, resistance R12Effect be through-flow to prevent D7Damage.Diode D5In parallel
At the outfan of transformator, diode D6It is connected to transformator assistant formula, D6The other end and resistance R11It is connected, R11The other end and transformation
The other end of device is connected；D5Effect be the most through-flow when oscillation circuit, D6Effect be to ensure that the polarity of voltage pulse output
For just, R11Effect be the effect playing cocurrent flow under no-load condition.
U6 is that fiber-optic signal receives head, between its power supply and ground electrode and have an electric capacity C5；Its effect is to improve light
The power supply capacity of power supply during fine reception head work.The signal output part of U6 passes through diode D8、D9It is connected on 5V and earth potential；
Effect be that the output signal voltage clamper that optical fiber receives head is between 0V and 5V.U7 is metal-oxide-semiconductor driving chip, and input leads to
Cross pull-up resistor R15Being connected to 5V power supply, outfan is through pull-up resistor R14It is connected to 15V power supply, through current-limiting resistance R13Even
Receive the grid of metal-oxide-semiconductor Q.
After optical signal generation loop sends signal, U6 exports high level, through driving chip U7, metal-oxide-semiconductor Q is turned on,
Electric capacity C4 pulse transformer is discharged, thus produces thyristor triggering impulse at assistant formula.
Fig. 4 is pulse-generating circuit and the circuit diagram of active continuous current circuit of this device, LOOP in figure1For pulses generation electricity
Road, LOOP2For active continuous current circuit.Pulse-generating circuit, by opening IGCT, makes storage capacitor through pulse transformer to touching
Send out creeping discharge.Pulse-generating circuit includes: IGCT SCR1, electric capacity C7, diode D10With pulse transformer T2, electric capacity C7Warp
Cross IGCT SCR1It is connected to pulse transformer T2Two ends, T2Former side parallel diode D10, assistant formula is connected to Triggered Vacuum Switch
Trigger electrode two ends, wherein IGCT SCR1Gate pole be connected to thyristor gating circuit outfan "+" pole, its negative electrode connects
In the "-" pole of thyristor gating circuit, matched thyristor gating circuit connects fibre optical transmission head D1；Electric capacity C7For puncturing
IGBT group provides primary power, IGCT SCR along face1Guan Bi produces former square pulse, diode D10Vibrate in loop
Time ensure the most through-flow, prevent electric capacity C7With transformator T2Inductance resonance.
In active freewheeling circuit, the active afterflow electric capacity of charging is triggering to triggering creeping discharge after surface breakdown, to improve
Quantity and the increase of initial plasma trigger the ON time along face.Active continuous current circuit includes: diode D11, diode
D12, diode D13, diode D14, resistance R16, resistance R17, resistance R18, resistance R19, diode D15, electric capacity C8, IGCT
SCR2, diode D15, resistance R21, transformator T3, wherein, transformator T3Former side connects civil power, and assistant formula passes through resistance R21And diode
D15It is connected to afterflow electric capacity C8, diode D15With resistance R20After parallel connection again with IGCT SCR2Series connection, the most again by they with
Electric capacity C8Parallel connection, diode D11、D12、D13、D14Two ends parallel resistance R respectively16、R17、R18、R19, connected and be triggered vacuum
The triggering of switch is connected to R along face20Two ends, IGCT SCR2Matching used thyristor gating circuit connects emitting head D2, brilliant lock
The gate pole of pipe be connected to the outfan of thyristor gating circuit "+" pole, its negative electrode is connected to the "-" pole of thyristor gating circuit；
T3City's electric boost is provided the charging voltage of afterflow electric capacity, R21For charging current current limliting, D15Ensure electric current one-way flow, C8For storage
Energy electric capacity, IGCT SCR2Guan Bi makes afterflow start, D15Effect be to provide the reverse through-flow loop of electric capacity, prevent reverse current its
Through triggering along face, D11、D12、D13、D14Effect be to ensure that electric current one-way flow, be to carry by the purpose of multilevel diode
The voltage endurance capability of high diode, R16、R17、R18、R19、R20Effect be to ensure that between diode that voltage's distribiuting is uniform.Active continuous
Multiple diodes and an IGCT in current circuit can ensure that electric capacity discharges reliably and one-way flow.Active freewheeling circuit
In multiple resistance and diodes in parallel to ensure that diode dividing potential drop is uniformly avoided damaging.Based on Triggered Vacuum Switch active continuous
Stream triggers device, vibration occurs in circuit when, reverses current through fly-wheel diode release.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, all should comprise
Within protection scope of the present invention.
Claims (5)
1. one kind and the matching used active triggering device of Triggered Vacuum Switch, it is characterised in that including: optical signal produces electricity
Road, thyristor gating circuit, pulse-generating circuit and active freewheeling circuit；
The input of described thyristor gating circuit is connected to the outfan of optical signal generation circuit, described thyristor gating circuit
Successively export the first pulse signal and the second pulse signal respectively, the input of pulse-generating circuit and active freewheeling circuit defeated
Enter end and be connected to the outfan of thyristor gating circuit, the outfan of pulse-generating circuit and the outfan of active freewheeling circuit
Being used to connect the input of Triggered Vacuum Switch, described pulse-generating circuit touches according to described first output of pulse signal first
Signaling and control Triggered Vacuum Switch breakdown triggering along face, described active freewheeling circuit is according to described second output of pulse signal
Second triggers signal and controls Triggered Vacuum Switch and be triggered along face afterflow.
Active triggering device the most as claimed in claim 1, it is characterised in that described optical signal generation circuit includes: first touches
Send out device U1, the second trigger U2, the 3rd trigger U3, the first not gate U4, the second not gate U5, the first fibre optical transmission head D1, second
Fibre optical transmission head D2, Guan Bi switch S1, electricity R1, resistance R2, electric capacity C1, resistance R3, electric capacity C2, resistance R4, electric capacity C3, resistance R5With
Resistance R6；
The power end V of described first trigger U1CCBeing connected to 5V voltage, the CLR end of described first trigger U1 is connected to 5V electricity
Pressure, the rising edge input 1A of described first trigger U1 is connected to 5V voltage, described first trigger by Guan Bi switch S1
The trailing edge input 1B of U1 passes through resistance R1Being connected to 5V voltage, the trailing edge input 1B of described first trigger U1 also connects
Ground；The external timing resistance mouth 1R of described first trigger U1ext/CextBy resistance R2Being connected to 5V voltage, described first touches
Send out the external timing capacitor mouth 1C of device U1extBy electric capacity C1It is connected to 5V voltage；
The power end V of described second trigger U2CCBeing connected to 5V voltage, the CLR end of described second trigger U1 is connected to 5V electricity
Pressure, the rising edge input 1A of described second trigger U2 is connected to the positive output end 1Q of described first trigger U1, and described the
The trailing edge input 1B ground connection of two trigger U2；The external timing resistance mouth 1R of described second trigger U2ext/CextBy electricity
Resistance R3It is connected to 5V voltage, the external timing capacitor mouth 1C of described second trigger U2extBy electric capacity C2It is connected to 5V voltage；
The power end V of described 3rd trigger U3CCBeing connected to 5V voltage, the CLR end of described 3rd trigger U3 is connected to 5V electricity
Pressure, the rising edge input 1A of described 3rd trigger U3 is connected to 5V voltage, the trailing edge input of described 3rd trigger U3
End 1B is connected to the positive output end 1Q of the first trigger U1；The external timing resistance mouth 1R of described 3rd trigger U3ext/CextLogical
Cross resistance R4It is connected to 5V voltage, the external timing capacitor mouth 1C of described 3rd trigger U3extBy electric capacity C3It is connected to 5V electricity
Pressure；
The input of described first not gate U4 is connected to the positive output end 1Q of the second trigger U2, described first fibre optical transmission head D1
Negative electrode be connected to the outfan of described first not gate U4, the anode of described first fibre optical transmission head D1 is by described resistance R5 even
It is connected to 5V voltage；
The input of described second not gate U5 is connected to the positive output end 1Q of the 3rd trigger U3, described second fibre optical transmission head D2
Negative electrode be connected to the outfan of described second not gate U5, the anode of described second fibre optical transmission head D2 is by described resistance R6 even
It is connected to 5V voltage.
Active triggering device the most as claimed in claim 1, it is characterised in that described thyristor gating circuit includes: optical fiber is believed
Number receive head U6, metal-oxide-semiconductor Q, metal-oxide-semiconductor driving chip U7, inductance L1, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electricity
Resistance R12, resistance R13, resistance R14, resistance R15, electric capacity C4, electric capacity C5, light emitting diode D3, diode D4, diode D5, diode
D6, diode D8, diode D9, Zener diode D7With metal-oxide-semiconductor Q pulse transformer T1；
Described electric capacity C4One end by the resistance R that is sequentially connected in series7With inductance L1It is connected to 15V voltage, described electric capacity C4's
Other end ground connection；Light emitting diode D3Anode by resistance R8It is connected to described electric capacity C4One end, light emitting diode D3The moon
Pole ground connection；
Resistance R is passed through in one end of the armature winding of metal-oxide-semiconductor Q pulse transformer T19It is connected to described electric capacity C4One end, metal-oxide-semiconductor Q
The other end of the armature winding of pulse transformer T1 is connected to the drain electrode of metal-oxide-semiconductor Q；
Diode D4Negative electrode be connected to one end of armature winding of T1, diode D4Anode by resistance R10It is connected to metal-oxide-semiconductor
The drain electrode of Q；The source ground of metal-oxide-semiconductor Q, the grid of metal-oxide-semiconductor Q passes through resistance R13It is connected to the outfan OUT of U7；
Zener diode D7Negative electrode be connected to the grid of metal-oxide-semiconductor Q, Zener diode D7Plus earth；Described resistance R12With institute
State Zener diode D7It is connected in parallel；
Described diode D5Negative electrode be connected to one end of secondary windings of T1, described diode D5Anode be connected to T1 time
The other end of level winding, described diode D6Anode be connected to one end of secondary windings of T1, described resistance R11One end with
Described diode D6Negative electrode connect after as the output head anode of described thyristor gating circuit；Described resistance R11The other end
It is connected to the other end of the secondary windings of T1；
Fiber-optic signal receives the power end Vcc of head U6 and is connected to 5V voltage, and fiber-optic signal receives the ground end GND ground connection of head U6；Electricity
Hold C5It is connected to described fiber-optic signal receive between the power end Vcc of head U6 and ground end GND；Diode D8With diode D9Successively
It is connected in series between 5V voltage and ground, diode D8With diode D9The end that is connected in series receive head U6 with fiber-optic signal
DATA end connects；Resistance R15It is connected between the DATA end of 5V voltage and fiber-optic signal reception head U6；
The power end of metal-oxide-semiconductor driving chip U7 connects 15V voltage, and the input IN of metal-oxide-semiconductor driving chip U7 is connected to optical fiber letter
Number receive head U6 DATA end, the ground end ground connection of metal-oxide-semiconductor driving chip U7；Resistance R14It is connected to the outfan of 15V voltage and U7
Between OUT.
Active triggering device the most as claimed in claim 1, it is characterised in that described pulse-generating circuit includes: IGCT
SCR1, electric capacity C7, diode D10With pulse transformer T2；
Described IGCT SCR1Anode as described pulse-generating circuit input anode, described IGCT SCR1Negative electrode even
It is connected to pulse transformer T2One end of armature winding, described electric capacity C7One end be connected to described IGCT SCR1Anode, two
Pole pipe D10Negative electrode be connected to pulse transformer T2One end of armature winding, described electric capacity C7The other end, diode D10's
Anode and pulse transformer T2Armature winding the other end connect after as described pulse-generating circuit input cathode；Described
Pulse transformer T2Secondary windings as the outfan of described pulse-generating circuit.
Active triggering device the most as claimed in claim 1, it is characterised in that described active freewheeling circuit includes: diode D11、
Diode D12, diode D13, diode D14, resistance R16, resistance R17, resistance R18, resistance R19, resistance R20, diode D15, electricity
Hold C8, IGCT SCR2, diode D15, resistance R21With transformator T3；
Diode D11Negative electrode as the input anode of described active freewheeling circuit, diode D11Anode by being sequentially connected in series
Diode D12, diode D13With diode D14It is connected to IGCT SCR2Negative electrode, diode D15Negative electrode be connected to brilliant lock
Pipe SCR2Anode, diode D15Anode by resistance R21It is connected to transformator T3One end of armature winding；
Resistance R16With diode D11It is connected in parallel；Resistance R17With diode D12It is connected in parallel；Resistance R18With diode D13In parallel
Connect；Resistance R19With diode D14It is connected in parallel；
Resistance R20One end be connected to IGCT SCR2Negative electrode, diode D15Negative electrode be connected to IGCT SCR2Negative electrode,
Electric capacity C8One end be connected to diode D15Negative electrode；Resistance R20The other end, diode D15Anode and electric capacity C8Another
End is connected to transformator T3The other end of armature winding；Transformator T3Secondary windings as described active freewheeling circuit
Outfan.
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| CN201610866449.5A CN106301306B (en) | 2016-09-30 | 2016-09-30 | A kind of and matching used active trigger device of Triggered Vacuum Switch |
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| CN201610866449.5A CN106301306B (en) | 2016-09-30 | 2016-09-30 | A kind of and matching used active trigger device of Triggered Vacuum Switch |
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| CN106301306B CN106301306B (en) | 2019-08-09 |
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| CN110351648A (en) * | 2019-07-31 | 2019-10-18 | 广州笙达电器有限公司 | The detection method of signal deteching circuit and SPDIF fiber-optic signal |
| CN111146967A (en) * | 2019-12-25 | 2020-05-12 | 兰州空间技术物理研究所 | High-reliability surface breakdown discharge trigger type pulse arc striking power supply |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
| CN113224930A (en) * | 2021-05-31 | 2021-08-06 | 湖南科瑞变流电气股份有限公司 | Optical pulse power amplifier isolation circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110351648A (en) * | 2019-07-31 | 2019-10-18 | 广州笙达电器有限公司 | The detection method of signal deteching circuit and SPDIF fiber-optic signal |
| CN111146967A (en) * | 2019-12-25 | 2020-05-12 | 兰州空间技术物理研究所 | High-reliability surface breakdown discharge trigger type pulse arc striking power supply |
| CN111146967B (en) * | 2019-12-25 | 2023-08-15 | 兰州空间技术物理研究所 | High-reliability edge surface breakdown discharge trigger type pulse arc striking power supply |
| CN111884638A (en) * | 2020-07-07 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Thyristor interlocking control circuit |
| CN113224930A (en) * | 2021-05-31 | 2021-08-06 | 湖南科瑞变流电气股份有限公司 | Optical pulse power amplifier isolation circuit |
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|---|---|
| CN106301306B (en) | 2019-08-09 |
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