CN107070290A - A kind of pulse trigger module suitable for triggered vacuum gap - Google Patents
A kind of pulse trigger module suitable for triggered vacuum gap Download PDFInfo
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- CN107070290A CN107070290A CN201710123519.2A CN201710123519A CN107070290A CN 107070290 A CN107070290 A CN 107070290A CN 201710123519 A CN201710123519 A CN 201710123519A CN 107070290 A CN107070290 A CN 107070290A
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- mosfet
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- control circuit
- pulse
- trigger module
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
- H03K3/57—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback the switching device being a semiconductor device
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Abstract
The invention discloses a kind of pulse trigger module suitable for triggered vacuum gap, for producing pulse signal, including DC power source unit, pulsed capacitance unit, MOSFET units, magnetic core unit and the FPGA control circuit unit for controlling MOSFET.The present invention ensures that the grid of powered switch mosfet is not breakdown by FPGA control circuit, while ensuring powered switch mosfet reliable turn-off；Wherein FPGA control loops use the cycle of 20 seconds, i.e., 20 seconds control MOSFET closures produce signal function circuit later.Drive circuit has good frequency characteristic, and switch mosfet is operated under best voltage and frequency, and its own loss is smaller；Switch mosfet is used in high tension loop, and drive circuit is strictly isolated with whole control circuit on current potential, it is ensured that control circuit safety work.
Description
Technical field
The invention belongs to electric device maintenance technical field, and in particular to and a kind of testing equipment-based on FPGA controls
A kind of pulse trigger module suitable for triggered vacuum gap of switch mosfet drive circuit..
Background technology
Triggered Vacuum Switch (Triggered Vacuum Switch, TVS) is also known as triggered vacuum gap (Triggered
Vacuum Gap, TVG) be vacuum switch important branch.As circuit controller part, its structure is that mountain is enclosed in vacuum chamber
Main electrode (generally also having trigger electrode) composition of two or two groups electric insulations.The gap of main electrode formation is under normal conditions
Keep insulating by high vacuum, when needing to connect circuit, the additional trigger energy in mountain makes two main electrode fast conductings.
Early in the sixties, GE companies of the U.S. have just carried out substantial amounts of research and development work to TVS.The beginning of the seventies, India
Scientist Ka Maikexia (S.Kamakshaiah) et al. have studied the TVS using different triggering materials, accelerate its practical mistake
Journey.
The beginning of the eighties, Dutch scholar and Chinese scholar etc. have carried out application study to TVS, achieve a large amount of with practical value
Achievement in research.With Pulse Power Techniques development and be widely applied, the especially for example big work(of control aspect in special power supply
Energy control of energy-storage system control and Electromagnetic Launching in rate laser power supply and electric physical study etc. is proposed to high-performance
The demand of exploitation.Since the nineties, TVS has further development at full speed, and TVS species and parameter, which also have, constantly to be carried
Height, expands TVS and uses power system as one of control element, such as application in dc circuit breaker and high-voltage and current-limitation device
Deng.It can foretell, as the application of high-tech in Electromagnetic Engineering field and power system deepens continuously and develops, TVS will undertake
More and more important role.
Developing rapidly for TVS is due to quick expansion that vacuum medium has high dielectric level and arc post plasma
Dissipate, there is it and repeat conducting and the ability of shut-off high-voltage large current at higher frequencies.Because conductive channel is enclosed in very
Without by external interference in Altitude, so as to substantially increase TVS reliability index.Due to vacuum arc arc voltage very
Low, the energy relative atmospheric electric arc for introducing electric arc is much lower, and this just makes TVS electrode erosion rate extremely low, can carry tens
Even the peak point current of hundreds of kilo-amperes, once leads to and carries the quantity of electric charge up to hundreds of or even thousands of coulombs, and the main electrode life-span is general not
It is restricted.Need quick-make circuit and accurate control to connect the occasion at moment, pass through the selection of auxiliary triggering material, TVS
It can reach the ON time of few tens of nano-seconds level.Compared with the power electronic devices developed, low simple in construction and cost is TVS
Maximum feature, such as turn on for turn-off function, TVS power water reached by connection in series-parallel using power electronic devices at present
It is flat, its cost several orders of magnitude higher than TVS.In a word, TVS be a kind of high-performance parameter, height leather property, the long-life and it is low into
This electron tube, therefore TVS is a kind of extremely promising electric elements of new generation.
TVS has many types, according to the different demarcation of application scenario, can divide following 3 major class：
1. the such TVS of connection type TVS are generally used for a Power Flow system and are switched to application network, it is desirable to have enough electricity
The bearing capacity of lotus amount and current peak, it is desirable to accurate turn-on time and small triggering time delay, sometimes requires that sufficiently small electricity
The rise time is flowed in favor of pulse-shaping, but this TVS is general to the less demanding of dynamic insulation, to the recovery capability after arc
Almost do not require.
2. closing the such TVS of parting TVS is operated in alternating current occasion, it is desirable to can divide fast and reliablely in current zero-crossing point
Deenergizing, and higher backward voltage can be immediately subjected to, i.e., with quick medium recovery ability；For the bearing capacity of electric charge
Although the requirement for being not switched on type is high, such as TVS is in the continuous state for closing separate loading, then requires have enough thermal powers to dissipate
Ability, also has higher requirement to the continuous ability to work in triggering life-span and triggering system.
3. the such TVS of a moving electrodes type TVS electrode is movable, the moving contact of similar vacuum switch arc-chutes,
Trigger electrode is mounted in static side.Moving electrode connects a quick operating mechanism, starts operating mechanism when needing to be electrified for a long time, makes two electrodes
Long secondary closure.The actuation time of common mechanical switch in Millisecond, and such TVS be actually can be accurate within the Microsecond grade time
Control the vacuum switch of on-off time.
The control signal that FPGA is produced controls MOSFET break-make after amplifying through overdrive circuit.What pulse transformer was produced
High-voltage pulse can carry out repid discharge to load, therefore drive control circuit wants certain electrical isolation with high tension loop.
The content of the invention
Present invention aim to address the problems of the prior art.
To realize that the technical scheme that the object of the invention is used is such, a kind of pulse suitable for triggered vacuum gap is touched
Send out device module, it is characterised in that:Including DC power source unit, pulsed capacitance unit, MOSFET units, transformer and FPGA control
Circuit unit；
One pole of the DC power source unit is sequentially connected in series after charging resistor R, storage capacitor, is connected to transformer primary side
A ends；
Another pole of the DC power source unit and the b ends common ground connection of transformer primary side；
The MOSFET units include a N-channel depletion type MOS FET and diode；The drain D connection of the MOSFET
Between the charging resistor R and storage capacitor；The source S of the MOSFET and the b ends common ground connection of transformer primary side；
The source S of the MOSFET connects the positive pole of diode, and the drain D of the MOSFET connects the negative pole of diode；
The transformer powers to the load；
The FPGA control circuit unit is by MOSFET grid G, to the MOSFET units injected pulse signal.
Further, the hair fibre that the FPGA control circuit unit includes optical fiber driver element, is connected with optical fiber driver element
Transmitter unit, the light receiving unit for receiving fibre optical transmission unit optical signal, the drive signal for receiving light receiving unit output signal
The switch element of generation unit and the whole drive circuit break-make of control.
What deserves to be explained is, optical fiber can isolate high pressure, and signal transmission o9o speed is fast, and strong antijamming capability, synchronous
Property it is good, meet the requirement to electrical isolation in Patent design, therefore the transmission of control signal is realized using optical fiber, carried out electricity
Light is changed and controls driving chip after opto-electronic conversion.
Brief description of the drawings
Fig. 1 is the pulse trigger modular circuit suitable for triggered vacuum gap；
Fig. 2 is theory diagram of the invention；
Fig. 3 is the conducting waveform situation of triggering pipe in embodiment, triggering time delay about 200ns, conducting voltage 2.5kV.
Embodiment
With reference to embodiment, the invention will be further described, but should not be construed above-mentioned subject area of the invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, all should be included within the scope of the present invention.
A kind of pulse trigger module suitable for triggered vacuum gap, including DC power source unit, pulsed capacitance unit,
MOSFET units, transformer and FPGA control circuit unit；
Pulsed capacitance is by metallic film coiling, pressure-resistant 1.2kV, capacitance 1uF.
Charging resistor 1k Ω, pressure-resistant 1kV, power 2W.
MOSFET selects the C2M00800120D of CREE companies,
Driving chip is IXYS companies IXDN609PI,
Optical fiber head uses AVAGO HFBR-1414 and HFBR-2412,62.5/125 conventional μ m diameter glass of fiber selection
Glass optical fiber.
Transformer is the pulse transformer of coiling, step-up ratio 1：5.
In order to ensure circuit safety reliably, it is necessary to which high-pressure side is kept apart with low-pressure side, realization drives floatingly.Experiment is adopted
Driving power supply and high tension loop are carried out with the DC-DC insulating power supplies module H0505-2W and H0515-2W of Jin Shengyang companies every
From.
Control signal is produced by field programmable gate array (FPGA), the CycloneIV of model altera corp production
EP4CE6F17C8 in series.
The dc source of power supply is powered from the literary high-pressure modular DW-P601-120F5D in Tianjin east by 24V Switching Power Supplies,
Peak power output is up to 72W, output voltage：DC0~+1000V.
During experiment, load can be 1000 Ω noninductive resistance.
One pole of the DC power source unit is sequentially connected in series after charging resistor R, storage capacitor, is connected to transformer primary side
A ends；
Another pole of the DC power source unit and the b ends common ground connection of transformer primary side；
The MOSFET units include a N-channel depletion type MOS FET and diode；The drain D connection of the MOSFET
Between the charging resistor R and storage capacitor；The source S of the MOSFET and the b ends common ground connection of transformer primary side；
The source S of the MOSFET connects the positive pole of diode, and the drain D of the MOSFET connects the negative pole of diode；
The transformer powers to the load；
The FPGA control circuit unit is by MOSFET grid G, to the MOSFET units injected pulse signal.
Further, the hair fibre that the FPGA control circuit unit includes optical fiber driver element, is connected with optical fiber driver element
Transmitter unit, the light receiving unit for receiving fibre optical transmission unit optical signal, the drive signal for receiving light receiving unit output signal
The switch element of generation unit and the whole drive circuit break-make of control.
In embodiments of the invention, transformer is no-load voltage ratio 1:5 one group of transformer, the voltage after boosting is applied to vacuum
Trigger on pipe.Turn on triggering pipe.The present invention by FPGA control circuit ensure the grid of powered switch mosfet not by
Puncture, while ensuring powered switch mosfet reliable turn-off；Wherein FPGA control loops use the cycle of 20 seconds, i.e., 20
Second control MOSFET closure, produce a signal function later circuit (time can be by the change of program to set not
The same time, set the time interval of 20 seconds be in order to be discharged in pulsatile once after have sufficient time to observe and adjust again
Examination).The arteries and veins that FPGA control circuit is produced is mainly can enable to trigger pipe triggering and conducting in the ON time point of setting.
(Fig. 3 is the conducting waveform situation of triggering pipe in embodiment, triggering time delay about 200ns, conducting voltage 2.5kV).
Drive circuit has good frequency characteristic, and switch mosfet is operated under best voltage and frequency, its own damage
Consumption is smaller；Switch mosfet is used in high tension loop, and drive circuit is strictly isolated with whole control circuit on current potential, it is ensured that control
Circuit safety work processed.
Claims (3)
1. a kind of pulse trigger module suitable for triggered vacuum gap, it is characterised in that:Including DC power source unit, pulse electricity
Hold unit, MOSFET units, transformer and FPGA control circuit unit；
One pole of the DC power source unit is sequentially connected in series after charging resistor R, storage capacitor, is connected to a of transformer primary side
End；
Another pole of the DC power source unit and the b ends common ground connection of transformer primary side；
The MOSFET units include the MOSFET and diode；The drain D of the MOSFET is connected to the charging
Between resistance R and storage capacitor；The source S of the MOSFET and the b ends common ground connection of transformer primary side；The MOSFET's
Source S connects the positive pole of diode, and the drain D of the MOSFET connects the negative pole of diode；
The transformer powers to the load；The load is vacuum trigger switch tube；
The FPGA control circuit unit is by MOSFET grid G, to the MOSFET units injected pulse signal.
2. a kind of pulse trigger module suitable for triggered vacuum gap according to claim 1 or 2, it is characterised in that：
The fine transmitter unit of hair, reception light that the FPGA control circuit unit includes optical fiber driver element, is connected with optical fiber driver element
The light receiving unit of fine transmitter unit optical signal, the drive signal generation unit for receiving light receiving unit output signal and control
The switch element of whole drive circuit break-make.
3. a kind of pulse trigger module suitable for triggered vacuum gap according to claim 1 or 2, it is characterised in that：
The MOSFET is N-channel depletion type MOS FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123519.2A CN107070290A (en) | 2017-03-03 | 2017-03-03 | A kind of pulse trigger module suitable for triggered vacuum gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123519.2A CN107070290A (en) | 2017-03-03 | 2017-03-03 | A kind of pulse trigger module suitable for triggered vacuum gap |
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| Publication Number | Publication Date |
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| CN107070290A true CN107070290A (en) | 2017-08-18 |
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| CN201710123519.2A Pending CN107070290A (en) | 2017-03-03 | 2017-03-03 | A kind of pulse trigger module suitable for triggered vacuum gap |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358966A (en) * | 2020-04-30 | 2020-07-03 | 清华大学 | Sterilization and disinfection device based on nanosecond high-voltage pulse power supply |
| CN114859324A (en) * | 2022-07-05 | 2022-08-05 | 天津光电集团有限公司 | Utilize TVS's laser radar transmission and detection circuitry |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901916A (en) * | 2012-10-16 | 2013-01-30 | 北京华天机电研究所有限公司 | Optical fiber control lightning impulse voltage chopped wave delay trigger device based on FPGA (Field Programmable Gate Array) |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN103490662A (en) * | 2013-10-09 | 2014-01-01 | 桂林理工大学 | High-isolation high-voltage pulse power supply |
| CN103762832A (en) * | 2014-01-03 | 2014-04-30 | 深圳市航天新源科技有限公司 | Optical fiber driving type modular input series voltage division circuit |
| US20150028758A1 (en) * | 2011-10-04 | 2015-01-29 | Hans-Wolfgang Diesing | Isolating minimal switched power supply |
-
2017
- 2017-03-03 CN CN201710123519.2A patent/CN107070290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150028758A1 (en) * | 2011-10-04 | 2015-01-29 | Hans-Wolfgang Diesing | Isolating minimal switched power supply |
| CN102901916A (en) * | 2012-10-16 | 2013-01-30 | 北京华天机电研究所有限公司 | Optical fiber control lightning impulse voltage chopped wave delay trigger device based on FPGA (Field Programmable Gate Array) |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN103490662A (en) * | 2013-10-09 | 2014-01-01 | 桂林理工大学 | High-isolation high-voltage pulse power supply |
| CN103762832A (en) * | 2014-01-03 | 2014-04-30 | 深圳市航天新源科技有限公司 | Optical fiber driving type modular input series voltage division circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358966A (en) * | 2020-04-30 | 2020-07-03 | 清华大学 | Sterilization and disinfection device based on nanosecond high-voltage pulse power supply |
| CN114859324A (en) * | 2022-07-05 | 2022-08-05 | 天津光电集团有限公司 | Utilize TVS's laser radar transmission and detection circuitry |
| CN114859324B (en) * | 2022-07-05 | 2022-10-14 | 天津光电集团有限公司 | Utilize TVS's laser radar transmission and detection circuitry |
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Application publication date: 20170818 |
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