CN208424189U - It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe - Google Patents
It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe Download PDFInfo
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- CN208424189U CN208424189U CN201820431019.5U CN201820431019U CN208424189U CN 208424189 U CN208424189 U CN 208424189U CN 201820431019 U CN201820431019 U CN 201820431019U CN 208424189 U CN208424189 U CN 208424189U
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- switch pipe
- state switch
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Abstract
The utility model proposes a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe, comprising: modulation circuit, driving power amplifying circuit, magnetic ring transformer and multipath solid-state switching tube circuit；Wherein, modulation circuit is used to modulate the drive pulse signal of input；Driving power amplifying circuit is for amplifying by the drive pulse signal after the modulating circuit modulates；Magnetic ring transformer includes first side winding and multichannel secondary side winding, per secondary side winding all the way and solid-state switch pipe circuit connection all the way, for exporting high voltage pulse signal after driving the solid-state switch pipe circuit, solid-state switch pipe circuit to be driven.Compared with prior art, the power supply has the advantages that isolation voltage grade is high, circuit is simple, high reliablity, favorable expandability, and the concatenated number of solid-state switch pipe is easy increase and decrease on the basis of not needing to increase hardware, meanwhile, driving signal pulse duty cycle is adjustable.
Description
Technical field
The utility model relates to high voltage power supply technical fields, and in particular to a kind of multiple-channel output high_voltage isolation driving power.
Background technique
The fast development of power electronic devices and computer technology in recent years keeps existing research achievement and technology continuous
Application to improvement, mesohigh high power electronic equipment is also more and more extensive, including HVDC transmission system, height press
Other power electronic equipments such as state reactive compensation and power filter device, high power motor speed regulation device, Multilevel Inverters.
It is limited by the material of device for high-power power electronic and manufacturing process, is generally required in many high voltage system occasions at present
More device for high-power power electronic it is series-parallel, sometimes for save the cost, also using low pressure resistance, the power electronics of low current
Device substitutes the power electronic devices of large power high voltage with standing, high current in series and parallel.Due to the driving of high-tension electricity semiconductor devices
System is connected to the semiconductor devices in high potential and the control system in low potential, it is therefore necessary to realize high and low current potential
Isolation.With the continuous development of high-voltage and high-power power electronic device, between the driving power that each road is serially connected, often
Need to bear high operating voltage.
Conventional high-pressure isolation technology, such as: high voltage isolating transformer, special construction transformer and piezoelectric transformer, energy
Enough insulation requests for meeting high voltage better, the occasion few for isolation number have advantage, but by volume or driving road
Number limitation, is difficult to meet as Solid State Fault Current Limiter or multi-level converter etc. need the field of multiple-channel output isolation drive power supply
It closes.
High-power high voltage power electronic devices multichannel driving method has direct CD-ROM drive flowing mode, indirect optical drive side at present
Formula, magnetic coupling isolation drive mode.Direct CD-ROM drive flowing mode, i.e., convert optical signal for electric drive signal to directly drive a high position
Light shutter device.The outstanding advantages of such mode are that isolation voltage grade is high, and reliable trigger is excellent.But light-operated thyratron valence
Lattice are very expensive, are also difficult to suitable for common power electronic equipment at present, limit it and use on a large scale.Indirect CD-ROM drive
Flowing mode converts optical signal for driving signal and a high position is sent to be then converted to electric signal driving switch device, and such driving method is only
Energy transmitting switch signal message, electric current and power needed for not transmitting switching tube conducting need additionally to increase the drive of isolation end
Dynamic power supply, when concatenated switching tube quantity increases, the structure of circuit is bound to complexity, the stability decline of system.Magnetic coupling every
It is that the driving signal of low potential is passed through into high-frequency impulse isolating transformer (high-frequency isolation transformer armature winding 1 from driving method
Circle, secondary windings N circle or driving signal pass through N group high-frequency isolation transformer), then high potential is driven through over commutation
N group switching tube.Magnetic coupling isolation drive is limited to the core saturation problem of high-frequency impulse isolating transformer, the driving of transmission
The pulsewidth of signal is limited (usually requiring that the duty ratio of the driving pulse of power switch tube not above 50%), and there is also driving waves
Shape distortion and high-frequency impulse isolating transformer choose the problems such as difficult.
Utility model content
The utility model is mainly solving the technical problems that multichannel string present in the application of multichannel high_voltage isolation driving power
Join that switching tube isolation voltage is not high and isolated power supply structure is complicated, volume is big and problem at high cost.
In order to solve the above technical problems, the utility model proposes a kind of for driving the multiple-channel output high pressure of solid-state switch pipe
Isolation drive power supply, comprising: modulation circuit, driving power amplifying circuit, magnetic ring transformer and multipath solid-state switching tube circuit；Its
In, the modulation circuit is used to modulate the drive pulse signal of input；The driving power amplifying circuit is for amplifying by described
Drive pulse signal after modulating circuit modulates；The magnetic ring transformer includes first side winding and multichannel secondary side winding, often
Secondary side winding and solid-state switch pipe circuit connection all the way all the way, the magnetic ring transformer by first side winding reception by
The amplified drive pulse signal of driving power amplifying circuit, to be coupled in the multichannel secondary side winding, for driving
The solid-state switch pipe circuit is moved, the solid-state switch pipe circuit exports high voltage pulse signal after being driven.
A kind of specific embodiment according to the present utility model, in the multipath solid-state switching tube circuit, half quantity is consolidated
State switching tube circuit forms switchboard circuit, and the solid-state switch pipe circuit of the other half quantity forms truncation plate circuit；Wherein: truncation
Plate circuit Zhong Ge road solid-state switch pipe circuit and magnetic ring transformer secondary side winding are consolidated around to the switchboard road circuit Zhong Ge
State switching tube circuit and magnetic ring transformer secondary side winding are around on the contrary, so that each road solid-state switch pipe of truncation plate circuit
On off operating mode is opposite with the on off operating mode of each road solid-state switch pipe of switchboard circuit.
A kind of specific embodiment according to the present utility model, the driving power amplifying circuit includes: DC voltage booster circuit
And single-phase full bridge inverter circuit；Wherein, DC voltage booster circuit after the DC voltage of input is boosted for exporting, and conduct
The driving DC bus-bar voltage of single-phase full bridge inverter circuit；Single-phase full bridge inverter circuit is used for modulated drive pulse signal
Carry out power amplification.
A kind of specific embodiment according to the present utility model, the modulation circuit include multi-resonant oscillating circuit and monostable electricity
Road；Wherein, multi-resonant oscillating circuit is for being modulated the drive pulse signal of input, so that drive pulse signal is in a week
Multiple rectangular pulses are generated under failing edge trigger condition in phase；Monostable circuit is used for the drive of constriction multi-resonant oscillating circuit output
The pulsewidth of moving pulse signal.
A kind of specific embodiment according to the present utility model, the multi-resonant oscillating circuit is in drive pulse signal a cycle
The multiple rectangular pulses generated under interior failing edge trigger condition exist for the road truncation plate circuit Shang Ge solid-state switch pipe circuit
It is all open-minded in the time of the road switchboard circuit Shang Ge solid-state switch pipe circuit shutdown.
A kind of specific embodiment according to the present utility model, the monostable circuit constriction drive pulse signal pulsewidth are used
In the drive pulse signal of modulation different duty.
A kind of specific embodiment according to the present utility model, the first side winding of the magnetic ring transformer include a high pressure
Cable is used for transmission by power amplification and modulated drive pulse signal；Multichannel secondary side winding includes multiple annular iron
Ferrite core and the enameled wire being wrapped on magnetic core；The high-tension cable sequentially passes through each annular ferrite core.
A kind of specific embodiment according to the present utility model, the number of turns of the secondary side winding is according to driving DC bus electricity
Pressure and the solid-state switch pipe driving voltage of connection determine.
It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe according to above-described embodiment, and it is existing
There is technology to compare, which has the advantages that isolation voltage grade is high, circuit is simple, high reliablity, favorable expandability, and solid-state
The concatenated number of switching tube is easy increase and decrease on the basis of not needing to increase hardware.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of multiple-channel output high_voltage isolation driving power for driving solid-state switch pipe；
Fig. 2 is a kind of multipath solid-state switching tube series circuit figure of embodiment；
Fig. 3 is a kind of driving signal power amplification circuit figure of embodiment；
Fig. 4 is a kind of driving signal modulation circuit figure of embodiment；
Fig. 5 is a kind of first side winding both ends waveform signal schematic diagram of embodiment；
Fig. 6 is a kind of magnetic ring transformer schematic diagram of embodiment.
Specific embodiment
The utility model is described in further detail below by specific embodiment combination attached drawing.It is wherein different to implement
Similar component uses associated similar element numbers in mode.In the following embodiments, many datail descriptions are
In order to enable the application can be better understood.However, those skilled in the art can recognize without lifting an eyebrow, it is part of
Feature is dispensed in varied situations, or can be substituted by other elements, material, method.In some cases,
The relevant some operations of the application are there is no display in the description or describe, this is the core in order to avoid the application
It is flooded by excessive description, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary,
They can completely understand relevant operation according to the general technology knowledge of description and this field in specification.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
The utility model is described in further detail below by specific embodiment combination attached drawing.
Embodiment one: a kind of multiple-channel output high_voltage isolation for driving solid-state switch pipe is provided in the present embodiment and is driven
Power supply, as shown in Figure 1, comprising: modulation circuit 100, driving power amplifying circuit 200, magnetic ring transformer 300 and multipath solid-state are opened
Close pipe circuit 400.Wherein, modulation circuit 100 is used to modulate the drive pulse signal of input；Driving power amplifying circuit 200 is used
In amplification by the modulated drive pulse signal of modulation circuit 100；Magnetic ring transformer 300 includes first side winding 301 and multichannel
Secondary side winding 302 is connect per secondary side winding all the way with solid-state switch pipe circuit 400 all the way.Magnetic ring transformer 300 passes through one
Secondary side winding 301 is received by the amplified drive pulse signal of driving power amplifying circuit 200, to be coupled to multichannel secondary side
In winding 302, for driving solid-state switch pipe circuit 400.Output high voltage pulse letter after solid-state switch pipe circuit 400 is driven
Number.
In the present embodiment, as shown in Fig. 2, in multipath solid-state switching tube circuit 400, the solid-state switch pipe electricity of half quantity
Road 400 forms switchboard circuit 401, and the solid-state switch pipe circuit 400 of the other half quantity forms truncation plate circuit 402；Wherein: cutting
402 road Zhong Ge solid-state switch pipe circuit 421 of tailgate circuit and magnetic ring transformer secondary side winding 302 around to switchboard circuit
401 road Zhong Ge solid-state switch pipe circuits 411 are with magnetic ring transformer secondary side winding 302 around on the contrary, so that truncation plate electricity
The on off operating mode of each road solid-state switch pipe on road 402 and the on off operating mode of each road solid-state switch pipe of switchboard circuit 401 are opposite.
Specific driving process is: by taking first solid-state switch pipe switchboard circuit 411 as an example, when from first via secondary side winding
302 input drive signal be positive pulse when, Q1 conducting, circuit to Q3 the end GS capacitor charging, due to there is no discharge loop, GS
Voltage on the capacitor of end remains unchanged, and Q3 is constantly on.When negative pulse arrives, Q2 is connected, and the voltage on the capacitor of the end GS starts
It releases, Q3 cut-off.Each road solid-state switch pipe circuit debugging of switchboard 401 is similar with the process of shutdown, due to truncation plate 402
Magnetic ring transformer secondary side winding 302 is around to just on switchboard 401 on the contrary, so the road truncation Ban402Ge solid-state is opened
Close pipe circuit 421 open it is exactly the opposite with the time and 401 road the Shang Ge solid-state switch pipe circuit 411 of switchboard that turn off, i.e.,
When solid-state switch pipe on switchboard 401 is connected, the solid-state switch pipe cut-off of truncation plate 402；The solid-state switch of switchboard 401
When pipe turns off, the solid-state switch pipe of truncation plate 402 is open-minded, and such circuit design makes multipath solid-state switching tube circuit 400 defeated
Out with the consistent high-voltage pulse signal of input drive signal.
In the present embodiment, it is used to amplify the driving of driving signal using driving power amplifying circuit 200 as shown in Figure 3
Ability.Driving power amplifying circuit 300 includes: DC voltage booster circuit 201 and single-phase full bridge inverter circuit 202；Wherein, direct current liter
Volt circuit after the DC voltage of input is boosted for exporting, and the driving DC bus as single-phase full bridge inverter circuit
Voltage；The input voltage range of DC voltage booster circuit 201 may include: 4.5~9V, 9~18V, 18~36V etc., export direct current
Voltage range may include: 100V, 110V, 150V, 200V, 220V, 250V etc..Single-phase full bridge inverter circuit 202 is for exchanging
Drive pulse signal after system carries out power amplification.As shown in figure 3, the two-way of single-phase full bridge inverter circuit 202 exports out a
It is connected respectively with 301 both ends of first side winding of magnetic ring transformer 300 with out b, that is, connects a high-tension cable both ends.
In the present embodiment, as shown in figure 4, modulation circuit 100 includes multi-resonant oscillating circuit 101 and monostable circuit 102.
Wherein, multi-resonant oscillating circuit 101 is for being modulated the drive pulse signal of input, so that drive pulse signal is in a week
Multiple rectangular pulses are generated under failing edge trigger condition in phase；Monostable circuit 102 is exported for constriction multi-resonant oscillating circuit
Drive pulse signal pulsewidth.Specific signal modulation process is as shown in figure 4, the two-way input of multi-resonant oscillating circuit 101 is
It inputs drive pulse signal and its rp pulse signal, is all the way input drive pulse signal, and rising edge touches in two-way output
Hair, another way are failing edge start pulse signal corresponding with input drive pulse signal, meanwhile, it arrives in the signal failing edge
When, with input the consistent same period of drive pulse signal in, export a string of oscillation rectangular pulses；Monostable circuit 102
It is two-way input, two-way output, input signal is the output signal of multi-resonant oscillating circuit 101, and output signal is corresponding with input
, the burst pulse driving signal of pulsewidth constriction, meanwhile, output signal drive a and drive the b conduct of monostable circuit 102
The input signal of single-phase full bridge inverter circuit 202.
In the present embodiment, in Fig. 4 and drive pulse signal waveform shown in fig. 5, Tw is the pulsewidth of pulse signal, and T is
The period of pulse signal, Tw1 are the pulsewidth of burst pulse, wherein the output all the way of multi-resonant oscillating circuit 101 is failing edge triggering
Pulse signal, and the signal failing edge arrive when, with input the consistent same period of drive pulse signal in, export it is multiple
Rectangular pulse, it is solid on 401 road Shang Ge of switchboard circuit for 402 road Shang Ge solid-state switch pipe circuit 421 of truncation plate circuit
It is all open-minded in the time that state switching tube circuit 411 turns off.In the present embodiment, input drive pulse signal is by being adjusted to circuit
Multi-resonant oscillating circuit 101, monostable circuit 102 and driving power amplifying circuit 200 in 100 generate modulated high direct current
Voltage drive pulse signal, the letter at the two-way output both ends out a and out b of single-phase full bridge inverter circuit 202 as shown in Figure 5
Number waveform, i.e. the signal waveform schematic diagram at 301 both ends of first side winding of magnetic ring transformer 300.
300 structure of magnetic ring transformer is as shown in fig. 6, the first side winding 301 of magnetic ring transformer 300 includes a high-voltage electricity
Cable is used for transmission by power amplification and modulated drive pulse signal；Multichannel secondary side winding 302 includes multiple annular iron
Ferrite core 321 and the enameled wire 322 being wrapped on magnetic core；The high-tension cable sequentially passes through each annular ferrite core 321.
Wherein, the number of turns of secondary side winding 302 is determined according to driving DC bus-bar voltage and the solid-state switch pipe driving voltage of connection.
Embodiment two: in the present embodiment, can be according to the input drive signal of different duty, in modulation circuit 100
Monostable circuit 102 can be with constriction drive pulse signal pulsewidth, for modulating the drive pulse signal of different duty.
Use above specific case is illustrated the utility model, is merely used to help understand the utility model, and
Not to limit the utility model.Think of for those skilled in the art of the present invention, according to the utility model
Think, several simple deductions, deformation or replacement can also be made.
Claims (8)
1. a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe characterized by comprising modulation electricity
Road, driving power amplifying circuit, magnetic ring transformer and multipath solid-state switching tube circuit；Wherein, the modulation circuit is for modulating
The drive pulse signal of input；The driving power amplifying circuit is for amplifying by the driving pulse after the modulating circuit modulates
Signal；The magnetic ring transformer includes first side winding and multichannel secondary side winding, per secondary side winding all the way and solid-state all the way
Switching tube circuit connection, the magnetic ring transformer is received by the first side winding to be amplified by the driving power amplifying circuit
Drive pulse signal afterwards, it is described for driving the solid-state switch pipe circuit to be coupled in the multichannel secondary side winding
Solid-state switch pipe circuit exports high voltage pulse signal after being driven.
2. multiple-channel output high_voltage isolation driving power as described in claim 1, which is characterized in that the multipath solid-state switching tube
In circuit, the solid-state switch pipe circuit of half quantity forms switchboard circuit, the solid-state switch pipe circuit composition of the other half quantity
Truncation plate circuit；Wherein: truncation plate circuit Zhong Ge road solid-state switch pipe circuit and magnetic ring transformer secondary side winding around to
Switchboard circuit Zhong Ge road solid-state switch pipe circuit and magnetic ring transformer secondary side winding are around on the contrary, so that truncation plate electricity
The on off operating mode of each road solid-state switch pipe on road and the on off operating mode of each road solid-state switch pipe of switchboard circuit are opposite.
3. multiple-channel output high_voltage isolation driving power as described in claim 1, it is characterised in that the driving power amplification electricity
Road includes: DC voltage booster circuit and single-phase full bridge inverter circuit；Wherein, DC voltage booster circuit be used for the DC voltage that will input into
It is exported after row boosting, and the driving DC bus-bar voltage as single-phase full bridge inverter circuit；Single-phase full bridge inverter circuit for pair
Modulated drive pulse signal carries out power amplification.
4. multiple-channel output high_voltage isolation driving power as described in claim 1, it is characterised in that the modulation circuit includes more
Resonance oscillation circuit and monostable circuit；Wherein, multi-resonant oscillating circuit is used to be modulated the drive pulse signal of input, so that
Multiple rectangular pulses are generated under the failing edge trigger condition of drive pulse signal in one cycle；Monostable circuit is used for constriction
The pulsewidth of the drive pulse signal of multi-resonant oscillating circuit output.
5. multiple-channel output high_voltage isolation driving power as claimed in claim 4, which is characterized in that the multi-resonant oscillating circuit exists
The multiple rectangular pulses generated under failing edge trigger condition in drive pulse signal a cycle, on truncation plate circuit
Each road solid-state switch pipe circuit is all open-minded within the time that the road switchboard circuit Shang Ge solid-state switch pipe circuit turns off.
6. multiple-channel output high_voltage isolation driving power as claimed in claim 4, which is characterized in that the monostable circuit constriction
Drive pulse signal pulsewidth, for modulating the drive pulse signal of different duty.
7. multiple-channel output high_voltage isolation driving power as described in claim 1, it is characterised in that the one of the magnetic ring transformer
Secondary side winding includes a high-tension cable, is used for transmission by power amplification and modulated drive pulse signal；Multichannel is secondary
Side winding includes multiple annular ferrite cores and the enameled wire that is wrapped on magnetic core；The high-tension cable sequentially passes through each annular
FERRITE CORE.
8. multiple-channel output high_voltage isolation driving power as claimed in claim 7, which is characterized in that the circle of the secondary side winding
Number is determined according to driving DC bus-bar voltage and the solid-state switch pipe driving voltage of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431019.5U CN208424189U (en) | 2018-03-28 | 2018-03-28 | It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820431019.5U CN208424189U (en) | 2018-03-28 | 2018-03-28 | It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208424189U true CN208424189U (en) | 2019-01-22 |
Family
ID=65117720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820431019.5U Expired - Fee Related CN208424189U (en) | 2018-03-28 | 2018-03-28 | It is a kind of for driving the multiple-channel output high_voltage isolation driving power of solid-state switch pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208424189U (en) |
-
2018
- 2018-03-28 CN CN201820431019.5U patent/CN208424189U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210328 |