CN207992388U - A kind of repetition surge voltage generating means - Google Patents
A kind of repetition surge voltage generating means Download PDFInfo
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- CN207992388U CN207992388U CN201820465754.8U CN201820465754U CN207992388U CN 207992388 U CN207992388 U CN 207992388U CN 201820465754 U CN201820465754 U CN 201820465754U CN 207992388 U CN207992388 U CN 207992388U
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Abstract
The utility model discloses a kind of repetition surge voltage generating means, including：Voltage source module, charging and discharging circuit module and drive control module；Voltage source module includes pressure regulator and voltage-multiplying circuit；The output end of pressure regulator is connected with the input terminal of voltage-multiplying circuit, and the output end of voltage-multiplying circuit is connected with the input terminal of charging and discharging circuit module, and protective resistance is serially connected between the output end and the input terminal of charging and discharging circuit module of voltage-multiplying circuit；Charging and discharging circuit module includes charging capacitor, load capacitance and on-off switch, and the break-make of on-off switch can control the charging and discharging in charging and discharging circuit module, surge voltage can be generated when charging capacitor discharges to load capacitance；The signal receiving end of on-off switch is connected with the signal output end of drive control module.Surge voltage generating means provided by the utility model, can generate repetition surge voltage, can meet the portions of insulating material needs that cumulative function is tested under surge voltage, the efficiency of experimental study can be improved.
Description
Technical field
The utility model belongs to voltage generation circuit technical field, more particularly to a kind of repetition surge voltage generating means.
Background technology
Surge voltage generating means is a kind of high-voltage generating device generating impulse wave, is mainly used for the thunder of power equipment
Electric overvoltage all-wave and Operating Over Voltage Surge experiment, insulation characterisitic of the research power equipment under overvoltage impact.In addition,
Impulse voltage generator is also used as the important component of nanosecond pulse power supply, also frequently as great-power electronic beam and ion
Power supply in beam generator and carbon dioxide laser.
For current impulse voltage generator mainly based on the features such as large capacity, high voltage, main experimental object is large size
Power equipment, such as power transformer, bushing and HV cable accessories equipment；But in research transformer oilpaper, crosslinking
When the cumulative functions of the insulating materials under surge voltage such as PE cable slice, need to use low capacity, low-voltage weight
Frequency impulse voltage generator；The problem is that：It is accumulative that existing surge voltage generating means cannot meet research insulating materials
The needs of effect, there is an urgent need for a kind of portable easy-operating small-sized repetition impulse generators.
Utility model content
The purpose of this utility model is to provide a kind of repetition surge voltage generating means, to solve above-mentioned technology
Problem.Surge voltage generating means provided by the utility model, can generate repetition surge voltage, can meet portions of insulating material
The needs that cumulative function is tested under surge voltage, can be improved the efficiency of experimental study.
In order to achieve the above objectives, the utility model uses following technical scheme：
A kind of repetition surge voltage generating means, including：Voltage source module, charging and discharging circuit module and drive control mould
Block；
Voltage source module includes pressure regulator and voltage-multiplying circuit；The input terminal of pressure regulator can be connect with external power supply, pressure regulation
The output end of device is connected with the input terminal of voltage-multiplying circuit, the output end of voltage-multiplying circuit and the input terminal phase of charging and discharging circuit module
Connection, is serially connected with protective resistance, voltage-multiplying circuit can between the output end and the input terminal of charging and discharging circuit module of voltage-multiplying circuit
Charging voltage is provided by external voltage rectification and for charging and discharging circuit module；The input terminal of charging and discharging circuit module and output end it
Between circuit in parallel be connected with one or more charging capacitors, there are one the first break-makes being grounded to open for each charging capacitor parallel connection
It closes, is also connected on the circuit between the input terminal and output end of charging and discharging circuit module with charging resistor is connected to, the first break-make is opened
It shuts and is both provided with signal input part, the first on-off switch is used to control the charge and discharge of charging capacitor；Charging and discharging circuit module
Output end is connected in series with the second on-off switch, wave front resistance and load capacitance, and the output end parallel connection of charging and discharging circuit module connects
It is connected to wave terminal resistance, the second on-off switch is provided with signal input part, and the second on-off switch is for controlling charging capacitor to load
The electric discharge of capacitance；Drive control module is provided with signal output end, the signal input of the first on-off switch and the second on-off switch
End is connected with the signal output end of drive control module, and it is logical that the signal sent out by drive control module can control first
Disconnect the break-make of pass and the second on-off switch；Wherein, when the first on-off switch and the second on-off switch simultaneously switch off, charge and discharge are returned
The charging capacitor of road module can be charged by the charging voltage that voltage-multiplying circuit provides；First on-off switch and the second break-make
Switch while when being connected to, the charging capacitor of charging and discharging circuit module can by wave terminal resistance and wave front resistance to load capacitance into
Row electric discharge.
Further, the structure of voltage-multiplying circuit is two-stage, and the maximum output voltage of voltage-multiplying circuit output end is 6.5kV.
Further, voltage source module is high voltage direct current potential source module；The input terminal of pressure regulator and city's power supply system phase
The input voltage of connection, pressure regulator is 220V, and the output voltage range of pressure regulator is 0~1000V.
Further, charging and discharging circuit module specifically includes two-stage charging capacitor；First order charging capacitor C5 accesses multiplication of voltage
The output end of circuit forms circuit with voltage-multiplying circuit, and the first order fills a capacitance C5 and is connected in parallel to the first on-off switch V1, and first
On-off switch V1 ground connection；Second level charging capacitor C6 is in parallel with first order charging capacitor C5, and second level charging capacitor C6 is parallel with
First on-off switch V2, every grade of charging capacitor, which is matched, is connected to charging resistor R.
Further, the first on-off switch and the second on-off switch are IGBT on-off switches, and IGBT on-off switches can
Receive the signal that drive control module is sent out.
Further, drive control module is IGBT drive control modules, and IGBT drive control modules can send out driving
Signal.
Further, the driving circuit of IGBT drive control modules include control signal source, photodiode, power supply,
IGBT driving chips and third on-off switch；Power supply is connected with photodiode and IGBT driving chips, controls signal source and light
Quick diodes in parallel；Third on-off switch is IGBT on-off switches, is connected with IGBT driving chips；Match on driving circuit and is connected to
Corresponding capacitance and isolation resistance；Wherein, power supply can provide voltage for IGBT driving chips, and control signal source can control light
The break-make of quick diode, photodiode conducting can make IGBT driving chips pass through third on-off switch to send out drive signal.
Further, in driving circuit by Phototube Coupling mode complete high-tension circuit and low-voltage control signal circuit every
From.
Further, IGBT driving chips are microcontroller.
Further, control signal source is signal generator.
Compared with prior art, the utility model has the advantages that：
The voltage source module of the repetition surge voltage generating means of the utility model is provided with pressure regulator and voltage-multiplying circuit, leads to
It can be DC voltage by the ac voltage rectifier of input to cross voltage-multiplying circuit, and charging electricity can be provided for charging and discharging circuit module
Pressure, the amplitude for the voltage for being conveyed to voltage-multiplying circuit can be adjusted by pressure regulator；Test product can be hit by the way that protective resistance is arranged
Current limit is in safe range when wearing；When first on-off switch and the second on-off switch are off simultaneously, charge and discharge are returned
Mould charging capacitor in the block in road can be charged by the charging voltage that voltage-multiplying circuit provides, and the first on-off switch and second leads to
It disconnects closing and receive when being closed after the drive signal that drive control module is sent out, charging capacitor passes through wave front resistance and wave terminal resistance
It discharges load capacitance, generates surge voltage, repetition surge voltage can be generated by repeating driving by drive control module, can be expired
The surge voltage cumulative function experiment of the materials such as sufficient transformer oilpaper, twisted polyethylene cable slice, can improve experimental study
Efficiency.
Further, using the voltage-multiplying circuit of two-stage, and maximum output voltage is 6.5kV so that the theory of package unit
Maximum output voltage reaches 13kV, further ensures that and disclosure satisfy that the materials such as XLPE cable slice and transformer oil paper insulation are rushing
Hit the cumulative function experiment demand under voltage.
Further, charging and discharging circuit module uses the structure of two-stage charging capacitor, the electric discharge between two-stage charging capacitor
Channel is made of IGBT, and cut-offfing for IGBT on-off switches is controlled by external drive control module；Two-stage impacting electric capacity constitutes " in parallel
Charging, discharged in series " circuit, can reduce the time constant in circuit, can shorten the charging time, improve the weight of surge voltage output
Complex frequency, the repetition rate for exporting surge voltage reach as high as 1Hz, can improve working efficiency.
Further, repetition function can preferably be realized using IGBT drive control modules and IGBT on-off switches；
Further, IGBT drive control modules complete electrion major loop and low voltage control using Phototube Coupling mode
The isolation in circuit only controls the operation of package unit, it is ensured that the person of operating personnel by controlling the signal that signal source is sent out
Safety；And it is easy for installation, it is easy to operate, the device of small volume is may be configured as, it is easy to carry.
Further, IGBT drive control modules provide drive signal by driving chip, controllable by photodiode
The working condition of driving chip controls cut-offfing for photodiode, to opening for controllable IGBT using external control signal source
Disconnected state.
Description of the drawings
Fig. 1 is a kind of major loop connection diagram of repetition surge voltage generating means of the utility model；
Fig. 2 is a kind of driving circuit of the IGBT drive control modules of repetition surge voltage generating means of the utility model
Connection diagram；
Fig. 3 is a kind of control principle block diagram of repetition surge voltage generating means of the utility model.
Specific implementation mode
The utility model is described in further details in the following with reference to the drawings and specific embodiments.
Please refer to Fig.1 with shown in Fig. 2, a kind of repetition surge voltage generating means of the utility model, including：Voltage source mould
Block, charging and discharging circuit module and drive control module；Voltage source module is high voltage direct current potential source generation module, charging and discharging circuit
Module is main discharge circuit module, and drive control module IGBT drive control modules, IGBT drive control modules can send out drive
Dynamic signal.
Voltage source module includes pressure regulator and voltage-multiplying circuit, the alternating voltages of pressure regulator T outputs through voltage-multiplying circuit rectification and
Under boosting, the DC voltage of amplitude can be generated.The input terminal of pressure regulator T can be connect with external power supply AC, pressure regulation
The output end of device T is connected with the input terminal of voltage-multiplying circuit, the input terminal of the output end and charging and discharging circuit module of voltage-multiplying circuit
It is connected, protective resistance, voltage-multiplying circuit energy is serially connected between the output end and the input terminal of charging and discharging circuit module of voltage-multiplying circuit
It is enough to provide charging voltage by external voltage rectification and for charging and discharging circuit module.The input terminal of pressure regulator T and city's power supply system phase
The input voltage of connection, pressure regulator is 220V, and the output voltage range of pressure regulator T is 0~1000V.The structure of voltage-multiplying circuit is
The maximum output voltage of two-stage, voltage-multiplying circuit output end is 6.5kV so that the theoretical maximum output voltage of package unit reaches
13kV disclosure satisfy that cumulative function experiment of the materials such as XLPE cable slice and transformer oil paper insulation under surge voltage needs
It asks.
Circuit in parallel between the input terminal and output end of charging and discharging circuit module is connected with two-stage charging capacitor C5, C6,
There are one first on-off switch V1, V2 being grounded, the input terminals and output end of charging and discharging circuit module for each charging capacitor parallel connection
Between circuit on also series connection be both provided with signal input part with being connected on charging resistor R, first on-off switch V1, V2, first
On-off switch V1, V2 are respectively used to the charge and discharge of control charging capacitor C5, C6；The output end of charging and discharging circuit module is connected in series with
There are the second on-off switch V3, wave front resistance RfIt is connected in parallel to wave rear with the output end of load capacitance C7, charging and discharging circuit module
Resistance Rt, the second on-off switch V3 is provided with signal input part, and the second on-off switch V3 is for controlling charging capacitor C5, C6 to negative
Carry the electric discharge of capacitance C7.Specifically it is connected as：The output end of first order charging capacitor C5 access voltage-multiplying circuits, forms with voltage-multiplying circuit
Circuit, the first order fill a capacitance C5 and are connected in parallel to the first on-off switch V1, the first on-off switch V1 ground connection；Second level charging electricity
Appearance C6 is in parallel with first order charging capacitor C5, and second level charging capacitor C6 is parallel with the first on-off switch V2, every grade of charging capacitor
Match and is connected to charging resistor R.First on-off switch V1, V2 and the second on-off switch V3 is IGBT on-off switches, IGBT break-makes
Switch can receive the signal that drive control module is sent out.
IGBT drive control modules are provided with signal output end, first on-off switch V1, V2 and the second on-off switch V3's
Signal input part is connected with the signal output end of drive control module, and the signal sent out by drive control module can be controlled
Make the break-make of first on-off switch V1, V2 and the second on-off switch V3；Wherein, first on-off switch V1, V2 and the second break-make are opened
When pass V3 is simultaneously switched off, the charging capacitor of charging and discharging circuit module can be filled by the charging voltage that voltage-multiplying circuit provides
Electricity；When first on-off switch V1, V2 and the second on-off switch V3 is connected to simultaneously, charging capacitor C5, C6 of charging and discharging circuit module
Wave terminal resistance R can be passed throughtWith wave front resistance RfIt discharges load capacitance C7.
The driving circuit of IGBT drive control modules specifically includes control signal source, photodiode, power supply, IGBT drivings
Chip and third on-off switch；Power supply is connected with photodiode and IGBT driving chips, controls signal source and photodiode
It is in parallel；Third on-off switch is IGBT on-off switches, is connected with IGBT driving chips；Match on driving circuit and is connected to corresponding electricity
Appearance and isolation resistance；Wherein, power supply can provide voltage for IGBT driving chips, and control signal source can control photodiode
Break-make, photodiode conducting can make IGBT driving chips pass through third on-off switch to send out drive signal.Driving circuit
In being isolated for high-tension circuit and low-voltage control signal circuit completed by Phototube Coupling mode.IGBT driving chips are microcontroller.
Control signal source is signal generator.The break-make of photodiode can be controlled by trigger signal generator, and then can be controlled
The transmission of drive signal processed can finally control the generation of surge voltage.
The operation principle of IGBT drive control modules：
IGBT drive control modules by control signal source, driving chip, photodiode, power supply B1, capacitance C1, C2 and
Isolation resistance R1, R2 composition.When photodiode does not receive optical signal, it is in off state, power supply B1 can not give and drive at this time
Dynamic chip power supply, driving chip cannot give IGBT on-off switches to provide Continuity signal, and the major loop of charging and discharging circuit module is in
Charged state；When controlling signal source to photodiode input pulse optical signal, photodiode is instantaneously connected, and power supply B1 gives
Chip provides instantaneous voltage signal, and driving chip generates pulse voltage and the control terminal of output valve IGBT on-off switches, at this time
IGBT is connected, and the major loop of charging and discharging circuit module is in discharged in series state, generates surge voltage.
Referring to figs. 1 to Fig. 3, the operation principle of the device of the utility model：
The power input of the pressure regulator of high voltage direct current potential source generation module is electrically connected with the city of 220V, the exchange of 220V
Voltage is by the alternating voltage of exportable 0-1000V after pressure regulator pressure regulation, the voltage feeding voltage-multiplying circuit after pressure regulator is adjusted
Rectification is carried out, voltage-multiplying circuit exports DC voltage, and the amplitude maximum of DC voltage is up to 6.5kV, the direct current of voltage-multiplying circuit output
Voltage charges to U by protective resistance r and charging resistor R to charging capacitor C5, C6.At this point, as the first on-off switch and
Three IGBT on-off switches V1, V2, V3 of two on-off switches are remained open, and the voltage that three IGBT on-off switches are born is
U.The control signal source in IGBT drive control modules, that is, signal generator are triggered, makes IGBT driving chips, that is, singly
Piece machine generates pulse signal and is sent out by signal output end, and IGBT on-off switches V1, V2, V3 receive drive control module hair
After the drive signal sent, V1, V2, V3 are instantaneously connected, and main capacitance C5, C6 form series loop, at this time the output electricity of capacitor C6
Pressure is 2U, and by wave front resistance RfIt discharges load capacitance C7, to generate standard switching impulse.Pass through drive control electricity
Road exports repetition pulse signal, can repeat the above process, generates repetition surge voltage.
In two-stage voltage-multiplying circuit in high voltage direct current potential source generation module, high voltage silicon rectifier stack (D2, D4) needs the electricity born
Pressure is 2Um(UmFor pressure regulator output voltage peak value), voltage-multiplying circuit maximum output voltage is 4Um, about 6.5kV；Discharge major loop
Module is connect by a protective resistance r with high voltage direct current potential source module, resistance r resistance value 10k Ω；Electric discharge main loop module is adopted
With two-layer configuration, main capacitance (C5, C6) is film impacting electric capacity, and capacitance is 0.5 μ F, and charging resistor (R) resistance value is 2k Ω；It is main
Discharge channel between capacitance is controlled by IGBT (V1, V2)；IGBT is controlled by MCU driving, uses a control signal source
With the working condition of photodiode control single chip computer, to control cut-offfing for IGBT.
With reference to figure 1 and Fig. 2, the connection procedure and operating procedure of the device of the utility model：
Output voltage regulator is connected to the capacitance C1 input terminals of voltage-multiplying circuit, the output end of voltage-multiplying circuit capacitance C4 is through protecting
Shield resistance r is connected to the input terminal of main discharge circuit.Before not receiving driving control signal, IGBT on-off switches are in disconnected
Open state, circuit by protective resistance r and charging resistor R to main capacitance C5, C6 to charging, and main capacitance C5, C6 is in electricity at this time
Lu Zhongwei charged in parallel relationships.The output end of major loop is through wave front resistance Rf, wave terminal resistance RtIt is connected to load capacitance C7.When
It after IGBT on-off switches receive the control signal that drive control circuit is sent out, is connected immediately, main capacitance C5, C6 form series connection
Circuit is through wave front resistance Rf, wave terminal resistance RtIt discharges load capacitance C7.
Before experiment, check each section wiring it is whether good, pay special attention to each earth point whether good earth.
After wiring is good, the ac power switch of alternating current is opened, slowly and evenly rotation pressure regulator is waited for current voltage
After voltage-multiplying circuit and main discharge circuit voltage stabilization, it can be considered that charging process is completed.
Setting control signal source so that control signal source can export optical signal that highest frequency is 1Hz to photosensitive two pole
Pipe.Photodiode is instantaneously connected after receiving optical signal, and power supply B1 provides a pulse voltage and gives IGBT driving chips.
After drive signal receives pulse voltage, pulse control signal is exported immediately to IGBT on-off switch V1, V2, V3,
V1, V2, V3 are instantaneously in the conduction state, and capacitance C5, C6 in major loop are parallel relationship and pass through wave front resistance RtTo load
Capacitance C7 electric discharges, generate surge voltage.The above process generates one-shot voltage.Since device major loop takes two-stage master
Capacitance structure, the charging time is shorter, and before the arrival of optical signal next time, major loop can complete charging process.Next time
When optical signal generates, device repeats the above process, you can generates repetition surge voltage.
The high voltage direct current potential source generation module of the repetition impulse voltage generator of the utility model is by two-stage voltage-multiplying circuit
And pressure regulator composition, main discharge circuit module constitute " charged in parallel, discharged in series " circuit, capacitance string by two-stage impacting electric capacity
Channel when connection electric discharge is controlled by IGBT on-off switches, and controlling IGBT by external drive signal switches on-off state, from
And generate repetition surge voltage.Low capacity, low-voltage etc. may be implemented in repetition impulse voltage generator provided by the utility model
The repetition impact test of grade material.In addition, high and low pressure circuit is isolated by photoelectric signal transformation in IGBT drive control modules,
It ensure that the personal safety of operating personnel, main discharge circuit shorten the charging time using two-layer configuration, improve output voltage
Repetition rate, working efficiency can be significantly increased.
Claims (10)
1. a kind of repetition surge voltage generating means, which is characterized in that including：Voltage source module, charging and discharging circuit module and drive
Dynamic control module；
Voltage source module includes pressure regulator T and voltage-multiplying circuit；The input terminal of pressure regulator T can be connect with external power supply AC, pressure regulation
The output end of device T is connected with the input terminal of voltage-multiplying circuit, the input terminal of the output end and charging and discharging circuit module of voltage-multiplying circuit
It is connected, protective resistance r, voltage-multiplying circuit energy is serially connected between the output end and the input terminal of charging and discharging circuit module of voltage-multiplying circuit
It is enough to provide charging voltage by external voltage rectification and for charging and discharging circuit module；
Circuit in parallel between the input terminal and output end of charging and discharging circuit module is connected with one or more charging capacitors, each
Charging capacitor parallel connection is there are one the first on-off switch being grounded, the circuit between the input terminal and output end of charging and discharging circuit module
On also series connection with being connected to charging resistor R, signal input part is both provided on the first on-off switch, the first on-off switch is for controlling
The charge and discharge of charging capacitor；The output end of charging and discharging circuit module is connected in series with the second on-off switch, wave front resistance and load
The output end of capacitance, charging and discharging circuit module is connected in parallel to wave terminal resistance, and the second on-off switch is provided with signal input part, the
Two on-off switches are for controlling electric discharge of the charging capacitor to load capacitance；
Drive control module is provided with signal output end, the signal input part of the first on-off switch and the second on-off switch with drive
The signal output end of dynamic control module is connected, the signal sent out by drive control module can control the first on-off switch and
The break-make of second on-off switch；Wherein, when the first on-off switch and the second on-off switch simultaneously switch off, charging and discharging circuit module
Charging capacitor can be charged by the charging voltage that voltage-multiplying circuit provides；First on-off switch and the second on-off switch are simultaneously
When connection, the charging capacitor of charging and discharging circuit module can discharge to load capacitance by wave terminal resistance and wave front resistance.
2. a kind of repetition surge voltage generating means according to claim 1, which is characterized in that the structure of voltage-multiplying circuit is
The maximum output voltage of two-stage, voltage-multiplying circuit output end is 6.5kV.
3. a kind of repetition surge voltage generating means according to claim 1, which is characterized in that voltage source module is high pressure
DC voltage source module；The input terminal of pressure regulator T is connected with city's power supply system, and the input voltage of pressure regulator is 220V, pressure regulation
The output voltage range of device is 0~1000V.
4. a kind of repetition surge voltage generating means according to claim 1, which is characterized in that charging and discharging circuit module has
Body includes two-stage charging capacitor；The output end of first order charging capacitor C5 access voltage-multiplying circuits, circuit is formed with voltage-multiplying circuit, the
Level-one fills a capacitance C5 and is connected in parallel to the first on-off switch V1, the first on-off switch V1 ground connection；Second level charging capacitor C6 with
First order charging capacitor C5 is in parallel, and second level charging capacitor C6 is parallel with the first on-off switch V2, and every grade of charging capacitor is coupled
There is charging resistor R.
5. a kind of repetition surge voltage generating means according to claim 1, which is characterized in that the first on-off switch and
Two on-off switches are IGBT on-off switches, and IGBT on-off switches can receive the signal that drive control module is sent out.
6. a kind of repetition surge voltage generating means according to claim 5, which is characterized in that drive control module is
IGBT drive control modules, IGBT drive control modules can send out drive signal.
7. a kind of repetition surge voltage generating means according to claim 6, which is characterized in that IGBT drive control modules
Driving circuit include control signal source, photodiode, power supply, IGBT driving chips and third on-off switch；Power supply and light
Quick diode and the series connection of IGBT driving chips, control signal source are in parallel with photodiode；Third on-off switch is IGBT break-makes
Switch, is connected with IGBT driving chips；Match on driving circuit and is connected to corresponding capacitance and isolation resistance；
Wherein, power supply can provide voltage for IGBT driving chips, and control signal source can control the break-make of photodiode, light
Quick diode current flow can make IGBT driving chips pass through third on-off switch to send out drive signal.
8. a kind of repetition surge voltage generating means according to claim 7, which is characterized in that pass through light in driving circuit
Electric isolution mode completes being isolated for high-tension circuit and low-voltage control signal circuit.
9. a kind of repetition surge voltage generating means according to claim 7, which is characterized in that IGBT driving chips are single
Piece machine.
10. a kind of repetition surge voltage generating means according to claim 7, which is characterized in that control signal source is letter
Number generator.
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| CN201820465754.8U CN207992388U (en) | 2018-04-03 | 2018-04-03 | A kind of repetition surge voltage generating means |
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| CN110095715A (en) * | 2019-05-07 | 2019-08-06 | 西安交通大学 | A kind of automatic test device and method of the effect of simulation transient state pulse electric stress |
| CN111009884A (en) * | 2019-12-10 | 2020-04-14 | 中国工程物理研究院应用电子学研究所 | False breakdown response system and implementation method of pulse power device |
| CN111837046A (en) * | 2019-02-19 | 2020-10-27 | 东芝三菱电机产业系统株式会社 | Pulse voltage generating device and protection method of power semiconductor switch |
| CN115575723A (en) * | 2022-11-21 | 2023-01-06 | 北京理工大学 | System for testing capacitance value of high-voltage multilayer ceramic capacitor in impact environment |
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2018
- 2018-04-03 CN CN201820465754.8U patent/CN207992388U/en active Active
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| CN111837046B (en) * | 2019-02-19 | 2023-06-09 | 东芝三菱电机产业系统株式会社 | Pulse voltage generating device and protection method for power semiconductor switch |
| US12021369B2 (en) | 2019-02-19 | 2024-06-25 | Tmeic Corporation | Impulse voltage generation device, and power semiconductor switch protection method |
| CN110095715A (en) * | 2019-05-07 | 2019-08-06 | 西安交通大学 | A kind of automatic test device and method of the effect of simulation transient state pulse electric stress |
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