CN102075165A - Multichannel timing high-voltage pulse generator and high-voltage trigger pulse generating devices - Google Patents
Multichannel timing high-voltage pulse generator and high-voltage trigger pulse generating devices Download PDFInfo
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Abstract
The invention discloses a multichannel timing high-voltage pulse generator and high-voltage trigger pulse generating devices, and belongs to the technical field of pulse power. The multichannel timing high-voltage pulse generator comprises a pulse timing control device and at least two channels of mutually-independent high-voltage trigger pulse generating devices which are connected with the pulse timing control device; the pulse timing control device presets timing intervals and outputs at least two channels of mutually-independent timing pulse signals to the high-voltage trigger pulse generating devices alternately according to the timing intervals; and after performing multistage amplification on the received timing pulse signals, the high-voltage trigger pulse generating devices output high-voltage pulses. In the invention, the at least two channels of mutually-independent high-voltage trigger pulse generating devices are arranged, and the high-voltage pulses are controlled by high reverse bias voltage controlled silicon in each channel of high-voltage trigger pulse generating device, so that each channel of high-voltage pulse generated by the high-voltage trigger pulse generating devices is not triggered by mistake due to electromagnetic interference. Therefore, the high-voltage trigger pulse generating devices have high electromagnetic interference resistance.
Description
Technical field
The invention belongs to the Pulse Power Techniques field, particularly a kind of multichannel sequential high-voltage pulse generator and high pressure trigger impulse generation device.
Background technology
Pulse Power Techniques (Pulsed Power Technology) are meant the energy with higher density that " slowly " stored, and carry out Fast Compression, conversion or directly release energy to the electric physical technique of load with the very short time.In the Pulse Power Techniques field, people often need a multichannel sequential high-voltage pulse generator, it can successively export two-way or the high voltage pulse more than the two-way by predefined sequential, triggers a plurality of high-voltage switches respectively, and they are successively discharged by predetermined sequential.
Existing sequential high-voltage pulse generator is to be made of analog circuit, it produces principle is to utilize the resonance of rlc circuit (i.e. the circuit of being made up of resistance R, inductance L, capacitor C) or RC circuit (i.e. the circuit of being made up of resistance R, capacitor C) to produce pulse, according to choosing the pulse that different R, C and L value are obtained different frequency, after adopting circuits for triggering to finish the shaping of paired pulses, the rear end exports then.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
During existing pulse generator work, at first Fang Dian spark switch can produce very strong electromagnetic interference, this disturbs and can trigger cable and power line along high voltage, or directly enter pulse generator from the space, thereby the circuits for triggering that originally should not move in this pulse generator of false triggering, all spark switchs that cause connecting pulse generator almost puncture simultaneously.
Summary of the invention
In order to improve the ability of the anti-strong electromagnetic of pulse generator, the embodiment of the invention provides a kind of multichannel sequential high-voltage pulse generator and high pressure trigger impulse generation device.Described technical scheme is as follows:
A kind of multichannel sequential high-voltage pulse generator is characterized in that, comprises the high pressure trigger impulse generation device that the pulse sequence control device is separate with the two-way at least that is connected with described pulse sequence control device;
Described pulse sequence control device is preset sequential at interval, and alternately exports the separate time sequential pulse signal of two-way at least to described high pressure trigger impulse generation device at interval according to described sequential;
Described high pressure trigger impulse generation device with the time sequential pulse signal that receives after multistage amplification, the output high-voltage pulse.
Wherein, described high pressure trigger impulse generation device specifically comprises photoelectricity isolating amplifier circuit, high reverse bias voltage controllable silicon drive circuit and pulse transformer;
Described photoelectricity isolating amplifier circuit receives the time sequential pulse signal of described pulse sequence control device output, described time sequential pulse signal is carried out voltage amplification, and send to high reverse bias voltage controllable silicon drive circuit, with the high reverse bias voltage controllable silicon drive circuit of the follow-up connection of enough drivings;
Described high back biased voltage controlled silicon drive circuit carries out secondary to described time sequential pulse signal and amplifies the generation high-voltage pulse, and sends to described pulse transformer;
Described pulse transformer receives and exports described high-voltage pulse.
Particularly, carry out the signal transmission by optical fiber between described pulse sequence control device and the described high pressure trigger impulse generation device.
Further, described pulse sequence control device and described high pressure trigger impulse generation device all are provided with metal shell.
Further, described pulse sequence control device by battery independently-powered, described high pressure trigger impulse generation device by pulse transformer by mains supply.
Particularly, described pulse sequence control device is the pulse sequence control device based on FPGA.
The present invention also provides a kind of high pressure trigger impulse generation device, specifically comprises photoelectricity isolating amplifier circuit, high reverse bias voltage controllable silicon drive circuit and pulse transformer;
Described photoelectricity isolating amplifier circuit receives the time sequential pulse signal of described pulse sequence control device output, described time sequential pulse signal is carried out voltage amplification, and send to high reverse bias voltage controllable silicon drive circuit, with the high reverse bias voltage controllable silicon drive circuit of the follow-up connection of enough drivings;
Described high back biased voltage controlled silicon drive circuit carries out secondary to described time sequential pulse signal and amplifies the generation high-voltage pulse, and sends to described pulse transformer;
Described pulse transformer receives and exports described high-voltage pulse.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: by the separate high pressure trigger impulse generation device of two-way at least is set in multichannel sequential high-voltage pulse generator, thereby high pressure trigger impulse generation device alternately receives the time sequential pulse signal, and the time sequential pulse signal of exporting by every road high pressure trigger impulse generating means paired pulses time sequence control device carries out multistage amplification, be not easy because of electromagnetic interference by false triggering, prevent that effectively the high-voltage pulse that a certain road high pressure trigger impulse generation device produces from causing another road high pressure trigger impulse generation device generation misoperation, has the ability of very strong anti-strong electromagnetic.
Description of drawings
Fig. 1 is the structural representation of the multichannel sequential high-voltage pulse generator that provides in the embodiment of the invention 1;
Fig. 2 is the structural representation of the multichannel sequential high-voltage pulse generator that provides in the embodiment of the invention 2;
Fig. 3 is the structural representation based on the pulse sequence control device of FPGA that provides in the embodiment of the invention 2;
Fig. 4 is the structural representation of the high pressure trigger impulse generation device that provides in the embodiment of the invention 3;
Fig. 5 is a certain application scenarios schematic diagram of the multichannel sequential high-voltage pulse generator that provides in the embodiment of the invention 4.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
Referring to Fig. 1, the embodiment of the invention provides a kind of multichannel sequential high-voltage pulse generator, specifically comprises: the high pressure trigger impulse generation device 102 that pulse sequence control device 101 is separate with the two-way at least that is connected with pulse sequence control device 101;
Pulse sequence control device 101 is preset sequential at interval, and alternately exports the separate time sequential pulse signal of two-way at least to high pressure trigger impulse generation device 102 at interval according to sequential;
High pressure trigger impulse generation device 102 with the time sequential pulse signal that receives after multistage amplification, the output high-voltage pulse.
The multichannel sequential high-voltage pulse generator that the embodiment of the invention provides, by the separate high pressure trigger impulse generation device of two-way at least is set, thereby high pressure trigger impulse generation device alternately receives the time sequential pulse signal, and the time sequential pulse signal of exporting by every road high pressure trigger impulse generating means paired pulses time sequence control device carries out multistage amplification, be not easy because of electromagnetic interference by false triggering, prevent that effectively the high-voltage pulse that a certain road high pressure trigger impulse generation device produces from causing another road high pressure trigger impulse generation device generation misoperation, has the ability of very strong anti-strong electromagnetic.
Embodiment 2
Referring to Fig. 2, the embodiment of the invention provides a kind of multichannel sequential high-voltage pulse generator, specifically comprises: the high pressure trigger impulse generation device 202 that pulse sequence control device 201 is separate with the two-way at least that is connected with pulse sequence control device 201;
Pulse sequence control device 201 is used for default sequential at interval, and alternately exports the separate time sequential pulse signal of two-way at least to high pressure trigger impulse generation device 202 at interval according to sequential;
Wherein, the pulse sequence control device is after a high pressure trigger impulse generation device is exported one road time sequential pulse signal in the present embodiment, according to default sequential at interval, export one road time sequential pulse signal to a high pressure trigger impulse generation device again, thereby alternately export the separate time sequential pulse signal of two-way, that is to say that the time sequential pulse signal that two-way high pressure trigger impulse generation device receives exists sequential at interval; Referring to Fig. 3, pulse sequence control device 201 can be for based on FPGA (Field-Programmable Gate Array, be field programmable gate array) the pulse sequence control device, specifically comprise clock signal processing module 2011, keyboard interface module 2012, routing control module 2013, data cache module 2014, timer conter module 2015 and charactron display module 2016;
Wherein, clock signal processing module 2011 is used to receive the clock signal that external crystal-controlled oscillation is imported, and this clock signal is carried out different frequency processing, sends to timer conter module 2014, keyboard interface module 2011 and charactron display module 2016 respectively;
In the pulse sequence control device, the degree of regulation of each road pulse signal time delay is 10ns, and this just requires the input clock signal frequency of counter to reach 100MHz.The frequency of external crystal-controlled oscillation is 50MHz, this clock signal inputs to the clock signal processing module, at first pass through phase-locked loop (Phase Locked Loop, PLL) frequency multiplication is 100MHz, doubled clock is delivered to counter module, is used for the timing output of pulse sequence signal.Consider the anti-shake requirement of keyboard input, the frequency of the input clock signal of keyboard input module, routing control module and data cache module must reduce.By frequency divider 1, the 100MHz clock signal frequency division that PLL is exported becomes the 1KHz clock signal, and this 1KHz clock signal is delivered to above three modules, to reach effectively anti-shake purpose of keyboard input.In the charactron display module, charactron adopts the method for dynamic driving, and promptly by frequency divider 2, the 100MHz clock signal frequency division that PLL is exported becomes the 10KHz clock signal, this 10KHz clock signal is delivered to the charactron display module, is used for data synchronization demonstration on the charactron.
Keyboard interface module 2012 adopts the method for lining by line scan, and identifies the button that a certain moment presses fast and accurately, and the key assignments data are sent in the subsequent module, thereby realizes the artificial setting to 5 road pulse signal time delay values.
Routing control module 2013 connects keyboard interface module 2012, be used for the key assignments data-signal KEY of keyboard interface module 2012 outputs is judged, and signal enable_1～enable_5 is selected on the road of exporting 5 tunnel pulses, thereby control the Data Receiving of 5 data cache modules, and the demonstration of the data of logarithmic code pipe display module is controlled.
Data cache module 2014 connects routing control module 2013, be used for selecting under the control of signal enable on the road, key assignments data-signal KEY with routing control module 2013 serials input, be converted into the also delay data signal time_0～time_7 of line output, they have represented 8 numerical digits of this road time delay numerical value of being keyed in successively by keyboard, at last delay data signal time_0～time_7 is sent to follow-up timer conter module, as its counting initial value.
Timer conter module 2015 connects routing control module 2013 and data cache module 2014, be used under the triggering of enabling signal START, according to delay data time_0～time_7 from data cache module, output timing pulse signal PULSE after given time of delay.
Charactron display module 2016 is output as bit data signal segment and position control signal common, deliver to 7 data bit and 8 control bits of charactron respectively, be the synchronous control signal that charactron provides video data and corresponding position to show, make that acquisition is stable on charactron, delay data shows accurately.By checking the delay data that shows on the charactron, can judge whether the key entry of keyboard is correct.
High pressure trigger impulse generation device 202 connects pulse sequence control device 201, and the time sequential pulse signal that is used for receiving is exported high-voltage pulse after multistage amplification.
Wherein, at least comprising in the present embodiment that two-way high pressure trigger impulse produces adorns 202, at least the separate time sequential pulse signal of two-way of above-mentioned pulse sequence control device 201 outputs, import high pressure trigger impulse generation device respectively, and it is separate fully between each road high pressure trigger impulse generation device, can effectively prevent the time sequential pulse signal that a certain road high pressure trigger impulse generation device produces, cause another road high pressure trigger impulse generation device generation misoperation.
Particularly, high pressure trigger impulse generation device 202 specifically comprises photoelectricity isolating amplifier circuit 2021, high reverse bias voltage controllable silicon drive circuit 2022 and pulse transformer 2023;
Photoelectricity isolating amplifier circuit 2021, the time sequential pulse signal that is used for 201 outputs of received pulse time sequence control device, this time sequential pulse signal is carried out voltage amplification, and send to high reverse bias voltage controllable silicon drive circuit 2022, with the high reverse bias voltage controllable silicon in the high reverse bias voltage controllable silicon drive circuit 2022 of enough driving connections; In the practical application, this photoelectricity isolating amplifier circuit 2021 can adopt optocoupler to carry out photoelectricity isolation and voltage amplification, the pulse sequence signal that receives can be amplified to about 100V, and the present invention does not do qualification to this;
High reverse bias voltage controllable silicon drive circuit 2022 connects photoelectricity isolating amplifier circuit 2021, is used for the pulse signal of photoelectricity isolating amplifier circuit 2021 outputs is carried out secondary amplification generation high-voltage pulse, and sends to pulse transformer 2023;
Wherein, in the practical application, high reverse bias voltage controllable silicon drive circuit amplifies the 100V pulse signal of photoelectricity isolating amplifier circuit output through further, generate several ten thousand volt and the high high-voltage pulses of steepness.
Adopt a kind of special silicon-controlled device in the high reverse bias voltage controllable silicon drive circuit, promptly big capacity electrostatic induction type SI-Thyristor, its trigger electrode can be operated under the very high reverse bias voltage (more than the 20V).The characteristic of cut-offfing of SI-Thyristor is " normally on ", and promptly trigger electrode voltage is slightly larger than at 0 o'clock with regard to conducting, and trigger electrode when adding negative voltage (negative bias) just disconnect.The reliable turn-off voltage of SI-Thyristor trigger electrode is-more than the 20V, it can be because of electromagnetic interference by false triggering.In order to make the SI-Thyristor conducting, the voltage of trigger electrode must be higher than 20V.Thereby, by adopt this big capacity electrostatic induction type silicon-controlled device be not easy because of electromagnetic interference by false triggering, can effectively solve general electronic power switch device triggering level lower, very easily by the problem of false triggering.
Pulse transformer 2023 connects high reverse bias voltage controllable silicon drive circuit 2022, is used to export high-voltage pulse; In the practical application, this pulse transformer 2023 can be exported the high voltage pulse of several ten thousand volts, and the structure of this pulse transformer is a prior art, and the present invention repeats no more this.
Further, pulse sequence control device in the embodiment of the invention is connected by optical fiber with each high pressure trigger impulse generation device, compare by the cable ways of connecting with existing, fiber cut from the interference of high pressure trigger impulse generation device, correspondingly, optical fiber is isolated hop and is comprised optical fiber, optical transmitting set, optical receiver and peripheral circuit.Optical transmitting set becomes light signal with the electrical signal conversion of pulse sequence control system output, and to its terminal optical receiver, optical receiver restores into light signal the time sequential pulse signal of telecommunication to light signal again by the Optical Fiber Transmission of certain-length then.
Preferably, the each several part of multichannel sequential high-voltage pulse generator, be the pulse sequence control device and at least two-way high pressure trigger impulse generation device metal shell all be set coat, by being set, metal shell carries out electromagnetic shielding, further avoid being subjected to influence from the radiated interference in space, make the work that multichannel sequential high-voltage pulse generator can be reliable and stable, the embodiment of the invention does not limit the metal types that adopts.
Further, in order to cut off interference from power line, the pulse sequence control device adopts the independently-powered pattern of battery, high pressure trigger impulse generation device then obtains power supply through isolating transformer from electrical network, be each several part all have oneself independently " ", particularly, since the input and the output of the photoelectricity isolating amplifier circuit in the high pressure trigger impulse generation device have respectively separately independently " ", thereby make input and output without any being connected on electric, high pressure trigger impulse generation device obtains power supply through isolating transformer from electrical network, with electrical network not altogether, therefore, electromagnetic interference signal not can by public " " enter other circuit, cut off interference from earth connection.
The multichannel sequential high-voltage pulse generator that the embodiment of the invention provides, by the separate high pressure trigger impulse generation device of two-way at least is set, thereby high pressure trigger impulse generation device alternately receives the time sequential pulse signal, and control by the high reverse bias voltage controllable silicon in the high pressure trigger impulse generating means, be not easy because of electromagnetic interference by false triggering, prevent that effectively the high-voltage pulse that a certain road high pressure trigger impulse generation device produces from causing another road high pressure trigger impulse generation device generation misoperation, has the ability of very strong anti-strong electromagnetic.In addition, the metal cabinet is set, has avoided being subjected to influence from the radiated interference in space by each several part to multichannel sequential high-voltage pulse generator; In order to cut off the interference from power line, the pulse sequence control device adopts the independently-powered pattern of battery, and high pressure trigger impulse generation device then obtains power supply through isolating transformer from electrical network; In order to cut off interference from earth connection, each part in the multichannel sequential high-voltage pulse generator all have oneself independently " ", thus electromagnetic interference signal not can by public " " enter other circuit.
Embodiment 3
Referring to Fig. 4, the embodiment of the invention provides a kind of high pressure trigger impulse generation device, specifically comprises photoelectricity isolating amplifier circuit 301, high reverse bias voltage controllable silicon drive circuit 302 and pulse transformer 303;
Photoelectricity isolating amplifier circuit 301 is used to receive the time sequential pulse signal, and this time sequential pulse signal is carried out voltage amplification, with the high reverse bias voltage controllable silicon in the high reverse bias voltage controllable silicon drive circuit 302 of enough driving connections; In the practical application, this photoelectricity isolating amplifier circuit 301 can adopt optocoupler to amplify, and the pulse sequence signal that receives can be amplified to about 100V, and the present invention does not do qualification to this;
High reverse bias voltage controllable silicon drive circuit 302 is used to provide high reverse bias voltage; Wherein, controllable silicon drive circuit 302 can adopt big capacity electrostatic induction type silicon-controlled device, its trigger electrode can be operated under the very high reverse bias voltage, generally-more than the 20V, the characteristic of cut-offfing of this big capacity electrostatic induction type silicon-controlled device is " normally on ", be trigger electrode voltage greater than conducting in 0 o'clock, and trigger electrode just disconnects when adding negative voltage (being negative bias).Be big capacity electrostatic induction type silicon-controlled device trigger electrode reliable turn-off voltage for-more than the 20V, thereby it can be because of electromagnetic interference by false triggering, in order to make the conducting of big capacity electrostatic induction type silicon-controlled device, the voltage of trigger electrode must be higher than 20V, thereby, by adopt this big capacity electrostatic induction type silicon-controlled device can effectively solve general electronic power switch device triggering level lower, very easily by the problem of false triggering.
The device that the embodiment of the invention provides, be operated in silicon-controlled device under the very high negative voltage by employing, efficiently solve general electronic power switch device triggering level lower, very easily by the problem of false triggering, thereby can be operated under the higher reliable turn-off voltage, not can because of electromagnetic interference by false triggering.
Embodiment 4
In order to be illustrated more clearly in technical scheme of the present invention, the embodiment of the invention is with in " method of double pulse measurement " experiment of the gas-insulated recovery characteristics of gas spark switch, the multichannel sequential high-voltage pulse generator that uses describes as example, but is not used for limiting the structure of multichannel sequential high-voltage pulse generator.In experiment, at first Fang Dian spark switch will produce very strong electromagnetic interference, this disturbs along high voltage and triggers cable and power line, or directly enter the high voltage synchronous control system from the space, and the subsequent triggers circuit that originally should not move this moment in this system of false triggering, cause all spark switchs almost simultaneously breakdown.Therefore, the embodiment of the invention provides a kind of multichannel sequential high-voltage pulse generator, can the high multichannel sequential high-voltage pulse of output prograin, and have the ability of opposing strong electromagnetic.
Referring to Fig. 5, provide the application scenarios of a kind of multichannel sequential high-voltage pulse generator of embodiment of the invention proposition below:
Multichannel sequential high-voltage pulse generator adopts pulse sequence control device and the separate high pressure trigger impulse generation device of two-way based on FPGA, and based on connecting by optical fiber between the separate high pressure trigger impulse generation device of the pulse sequence control device of FPGA and Ge Lu.
Wherein, the hardware based on the pulse sequence control device of FPGA mainly comprises three parts: control board, fpga core plate and optical fiber output board; Control board mainly comprises 4 * 4 keyboards, charactron, power switch key, reset key and start key, be based on the human-computer interaction interface of the pulse sequence control system of FPGA, can realize setting easily by operation control panel to each road time sequential pulse signal time delay value, and reset, function such as startup; The fpga core plate has adopted the Cyclone of ALTERA company series EP1C6Q240C8 chip, LM1085 voltage stabilizing chip, AS/JTAG download interface, active series arrangement device EPCS1, external crystal-controlled oscillation in the embodiment of the invention, be not limited to this in the practical application; The optical fiber output board, many optical transmitting sets are housed, the multichannel time sequential pulse electrical signal conversion that it sends the fpga core plate here is a light signal, and export by optical fiber, connected two-way high pressure trigger impulse generation device in the present embodiment, promptly this optical fiber output board sends to two independent high pressure trigger impulse generation device with two ways of optical signals.In addition, the battery power supply system that whole device adopts also is installed on the optical fiber output board, comprises chargeable lithium cell and voltage transformation module.
The structure of high pressure trigger impulse generation device mainly comprises as shown in Figure 4: light-coupled isolation voltage amplifier circuit, high reverse bias voltage controllable silicon drive circuit and pulse transformer; Wherein, light-coupled isolation transformation amplifying circuit is amplified to the pulse sequence signal about 100V, can either carry out voltage amplification to the pulse sequence signal of input, can play the effect that photoelectricity is isolated again; Adopt a kind of special silicon-controlled device in the high reverse bias voltage controllable silicon drive circuit, promptly big capacity electrostatic induction type SI-Thyristor, its trigger electrode can be operated under the very high reverse bias voltage (more than the 20V).The characteristic of cut-offfing of SI-Thyristor is " normally on ", and promptly trigger electrode voltage is slightly larger than at 0 o'clock with regard to conducting, and trigger electrode when adding negative voltage (negative bias) just disconnect.The reliable turn-off voltage of SI-Thyristor trigger electrode is-more than the 20V, it can be because of electromagnetic interference by false triggering.
During " method of double pulse measurement " of gas-insulated recovery characteristics tests in above-mentioned learning gas spark switch, multichannel sequential high-voltage pulse generator can the high multichannel sequential high-voltage pulse of output prograin, finished the sequencing control work of front and back discharge of tested gas switch and diagnostic instrments well, and the adjusting to the multiplex pulse time delay is simple to operation, volume is urinated in moving, the output stability of output signal is good, the probability that successfully triggers tested switch in repeatedly testing reaches more than 95%, this generator also has the ability of extraordinary anti-strong electromagnetic, in experimentation repeatedly, do not find to be applied in the high voltage environment of high-voltage large current through experimental verification by the phenomenon of false triggering.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a multichannel sequential high-voltage pulse generator is characterized in that, comprises the high pressure trigger impulse generation device that the pulse sequence control device is separate with the two-way at least that is connected with described pulse sequence control device;
Described pulse sequence control device is preset sequential at interval, and alternately exports the separate time sequential pulse signal of two-way at least to described high pressure trigger impulse generation device at interval according to described sequential;
Described high pressure trigger impulse generation device with the time sequential pulse signal that receives after multistage amplification, the output high-voltage pulse.
2. multichannel sequential high-voltage pulse generator as claimed in claim 1 is characterized in that, described high pressure trigger impulse generation device specifically comprises photoelectricity isolating amplifier circuit, high reverse bias voltage controllable silicon drive circuit and pulse transformer;
Described photoelectricity isolating amplifier circuit receives the time sequential pulse signal of described pulse sequence control device output, described time sequential pulse signal is carried out voltage amplification, and send to high reverse bias voltage controllable silicon drive circuit, with the high reverse bias voltage controllable silicon drive circuit of the follow-up connection of enough drivings;
Described high back biased voltage controlled silicon drive circuit carries out secondary to described time sequential pulse signal and amplifies the generation high-voltage pulse, and sends to described pulse transformer;
Described pulse transformer receives and exports described high-voltage pulse.
3. multichannel sequential high-voltage pulse generator as claimed in claim 2 is characterized in that, carries out the signal transmission by optical fiber between described pulse sequence control device and the described high pressure trigger impulse generation device.
4. as each described multichannel sequential high-voltage pulse generator of claim 1-3, it is characterized in that, described pulse sequence control device and described high pressure trigger impulse generation device all are provided with metal shell.
5. multichannel sequential high-voltage pulse generator as claimed in claim 4 is characterized in that, described pulse sequence control device by battery independently-powered, described high pressure trigger impulse generation device by pulse transformer by mains supply.
6. multichannel sequential high-voltage pulse generator as claimed in claim 1 is characterized in that, described pulse sequence control device is the pulse sequence control device based on FPGA.
7. a high pressure trigger impulse generation device is characterized in that, specifically comprises photoelectricity isolating amplifier circuit, high reverse bias voltage controllable silicon drive circuit and pulse transformer;
Described photoelectricity isolating amplifier circuit receives the time sequential pulse signal of described pulse sequence control device output, described time sequential pulse signal is carried out voltage amplification, and send to high reverse bias voltage controllable silicon drive circuit, with the high reverse bias voltage controllable silicon drive circuit of the follow-up connection of enough drivings;
Described high back biased voltage controlled silicon drive circuit carries out secondary to described time sequential pulse signal and amplifies the generation high-voltage pulse, and sends to described pulse transformer;
Described pulse transformer receives and exports described high-voltage pulse.
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Application publication date: 20110525 |