CN206149134U - A anti jamming system of electromagnetism for pulse generator - Google Patents
A anti jamming system of electromagnetism for pulse generator Download PDFInfo
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- CN206149134U CN206149134U CN201621044220.5U CN201621044220U CN206149134U CN 206149134 U CN206149134 U CN 206149134U CN 201621044220 U CN201621044220 U CN 201621044220U CN 206149134 U CN206149134 U CN 206149134U
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- circuit
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- drive circuit
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Abstract
A anti jamming system of electromagnetism for pulse generator is including lightning converting circuit, optical fiber transmission line, photoelectricity converting circuit, PCB transmission line, drive circuit, characterized in that: control system produces the PWM signal of telecommunication to with the input of this PWM electrical signal input to lightning converting circuit, lightning converting circuit output is connected with the one end of optical fiber transmission line, the other one end and the photoelectric switching circuit of optical fiber transmission line are connected, the photoelectric switching circuit output is connected with PCB transmission line one end, the other one end of PCB transmission line is connected with drive circuit, the drive signal of drive circuit output control IGBT switch block. This an anti jamming system of electromagnetism for pulse generator reliability height, stable performance, interference immunity is strong, circuit structure is simple.
Description
Technical field
The utility model is related to pulsed-power industry, the anti-interference system of the more particularly to a kind of electromagnetism for the pulse power
System.
Background technology
The pulse power is increasingly widely used in productive life as a kind of special Switching Power Supply.Due to pulse electricity
Source is operated in HF switch state mostly, and the crest voltage and peak point current of power supply output is all very high, and voltage, curent change
Rate is high, can produce the mistake break-make that extremely strong electromagnetic interference even causes IGBT to the control signal of power supply and drive signal,
So as to the stability for affecting the pulse power to work, therefore electromagnetic interference problem increasingly becomes focus of concern.So-called electricity
Magnetic disturbance（EMI）, some for referring to that power supply occurs in the course of the work are unrelated with useful signal and power-supply system is produced
The electromagnetic signal of interference.Electromagnetic interference is generally divided into two kinds, Conduction Interference and radiation interference.Conduction Interference is referred to by conductive Jie
Matter is coupled to another electric network the interference signal on an electric network.Radiation interference refers to that interference source does it by space
Disturb signal to be coupled on another electric network.For the research of electromagnetism interference problem can be transmitted from the interference source of interference signal
Passage and receiving terminal carry out Anti-interference Design.
The research for being presently used for the electromagnetism jamproof system of the pulse power has been carried out at home.If Tsing-Hua University is one
In planting the high voltage synchronous control system research of anti-strong electromagnetic, using the method for the anti-strong electromagnetic of Phototube Coupling.From
The switch that high back-biased controllable silicon discharges as High voltage pulse transformer former limit.Experiments verify that, the system has very
Good anti-electromagnetic interference capability.It is a kind of inclined based on SQUID disclosed in Shanghai Inst. of Microsystem and Information Technology, Chinese Academy of Sci
In putting the reading circuit of voltage reversal and the suppressing method of low-frequency noise, by biasing circuit for reversing, biasing reversion is realized, so as to
Suppress the generation of low-frequency noise；A kind of ultra-low noise high accuracy step-by-step adjustment direct current biasing electricity of Xian Electronics Science and Technology University's invention
The bias voltage parameter of setting is transferred to micro controller module and is carried out by source device, its host computer by CAN communication module
The serial scheme of control, can be to realize that 8 road bias voltages work simultaneously, and the bias voltage noise of output is low, and communication is stable, resists dry
Disturb ability strong.Research above has been carried out and add in a power the research that biasing circuit carrys out suppression electromagnetic interference, but not
It is related to add biasing circuit in driving circuit section, constitutes bias potential.The utility model is carried out on the basis of studying more than
Innovation, develops a kind of " using Optical Fiber Transmission control signal, and in drive part addition biasing circuit, composition bias potential, suppression
The circuit of strong electromagnetic processed, optimization noise suppression circuit ".
Utility model content
The utility model is for the deficiencies in the prior art, there is provided a kind of stable performance, the one of strong interference immunity
Plant the electromagnetism jamproof system for the pulse power.
A kind of electromagnetism jamproof system for the pulse power, including electro-optical conversion circuit, optical fiber transmission line, opto-electronic conversion
Circuit, PCB transmission lines, drive circuit；It is characterized by：Control system produces PWM electric signals, and the PWM electric signals are input to
The input of electro-optical conversion circuit；The electro-optical conversion circuit output end is connected with one end of optical fiber transmission line；The optical fiber is passed
The other end of defeated line is connected with photoelectric switching circuit；The photoelectric switching circuit output end is connected with PCB transmission lines one end；Institute
State PCB transmission line other ends to be connected with drive circuit；The drive signal of the drive circuit output control IGBT switches set.
Preferably：PWM electric signals are converted to light letter by the electro-optical conversion circuit by resistance R and LED
Number；Photodiode PD in the optical fiber transmission line connecting luminous diode LED and photoelectric switching circuit, realizes pwm signal
Optical Fiber Transmission.
Preferably：Photodiode PD converts optical signals to electric signal in the photoelectric switching circuit, at signal
Electric signal processing is triode Q1 base control signals by reason circuit, so as to control the conducting and shut-off of triode；Three pole
The colelctor electrode of pipe Q1 is connected with the base stage of triode Q2 by resistance Rb2；The collector voltage signal of triode Q2 turns for photoelectricity
Change the output electric signal of circuit；The PCB transmission lines transmit the output signal of photoelectric switching circuit through strong electromagnetic area
To drive circuit signal receiving end.
Preferably：The drive circuit constitutes noise suppression circuit by arranging drive circuit bias potential；Drive circuit
Receiving terminal receives the output electric signal of photoelectric switching circuit, and the electric signal is connected by resistance Rg with the grid of switching tube Q3；Institute
The source electrode for stating switching tube Q3 is connected to ground by source of stable pressure；The drain electrode of the switching tube Q3 is connected by resistance Rd with power supply；Institute
The drain electrode output of switching tube Q3 is stated as triode Q4, the base input signal of Q5, the on, off of triode Q4, Q5 is controlled.
Beneficial effect：The advantages of with good stability, reliability height, strong antijamming capability, simple circuit structure.
Description of the drawings
Fig. 1 is the circuit structure diagram of the electromagnetism jamproof system that the utility model is used for the pulse power.
Fig. 2 a, 2b are that pwm signal is biased and transmitted waveform figure when not biasing in drive circuit current potential.
Specific embodiment
Referring to shown in accompanying drawing 1.A kind of electromagnetism jamproof system for the pulse power, including electro-optical conversion circuit,
Optical fiber transmission line, photoelectric switching circuit, PCB transmission lines, drive circuit.Concrete operating principle is：The electro-optical conversion circuit leads to
Cross resistance R and LED and PWM electric signals are converted to into optical signal；The optical fiber transmission line connecting luminous diode LED
With photodiode PD, the Optical Fiber Transmission of pwm signal is realized.
The electro-optical conversion circuit, optical fiber transmission line, photoelectric switching circuit realize Phototube Coupling, it is suppressed that strong electromagnetic is done
Disturb；The photoelectric switching circuit, by photodiode PD, signal processor, triode Q1, Q2, current-limiting resistance Re1, Re2, Re3
Composition.Photodiode PD converts optical signals to electric signal in the photoelectric switching circuit, by signal processing circuit by electricity
Signal transacting is triode Q1 base control signals so as to control the conducting and shut-off of triode.The colelctor electrode of the triode Q1
It is connected with the base stage of triode Q2；The collector voltage signal of triode Q2 is the output electric signal of photoelectric switching circuit；It is described
The output signal of photoelectric switching circuit is delivered to drive circuit signal receiving end by PCB transmission lines through strong electromagnetic area.
The PCB transmission lines are the holding wire with double layer screen layer.By adding scale copper in PCB disturbed areas, prevent
Electromagnetic interference, makes photoelectric switching circuit output signal be transferred to drive circuit in the case of basic interference-free.
The drive circuit is by resistance Rg, 10V bi-directional voltage stabilizing diode VS1, N-channel enhancement mode FET Q3, three poles
Pipe Q4, Q5,9V Zener diode VS2 and resistance Rv are constituted；One end of the 10V bi-directional voltage stabilizings diode VS1 and resistance Rg,
The grid connection of N-channel enhancement mode FET Q3, former pole and triode of the other end with N-channel enhancement mode FET Q3
The colelctor electrode connection of Q5；The 10V bi-directional voltage stabilizings diode VS1 is used for limiting the grid source electricity of N-channel enhancement mode FET Q3
Pressure, reaches the purpose of protection Q3；The drain electrode of N-channel enhancement mode FET Q3 and the base stage of triode Q4, Q5 and pull-up
Resistance Rj connects；The drain voltage of N-channel enhancement mode FET Q3 is controlling the conducting of triode Q4, Q5；Triode
The base stage of Q4, Q5 is connected, and emitter stage is connected.The anode of the Zener diode VS2 is connected with the colelctor electrode of triode Q5,
Negative electrode is connected by resistance Rv with the colelctor electrode of triode Q4；Zener diode plays protection triode Q4, the effect of Q5.It is described
Bi-directional voltage stabilizing diode VS1, the source electrode of N-channel enhancement mode FET Q3, the colelctor electrode of triode Q5 and voltage-stabiliser tube VS2's
Anode is connected with+5V bias supplies.The drive circuit constitutes noise suppression circuit by arranging drive circuit bias potential.
The triode Q4, Q5, resistance Rv and voltage-stabiliser tube VS2 constitute power amplification circuit and drive opening and shut-off for IGBT.It is described steady
Pressure diode VS2 selects 9V Zener diodes.
Referring to shown in accompanying drawing 2.The accompanying drawing 2 is pwm signal transmitted waveform figure.A figures are that drive circuit arranges biasing in Fig. 2
Current potential（Q3 source-biased+5V）When pwm signal transmitted waveform, b figures are that drive circuit is not provided with bias potential（Q3 source electrodes are straight
Ground connection）When pwm signal transmitted waveform, wherein, a figure, b figure be defined as successively from top to bottom：The PWM of setting IGBT break-makes is electric
Signal, drive circuit receiving terminal ideal potential, drive circuit receiving terminal actual value current potential, Q3 drain electrode output electric potential signals, IGBT
Grid emitter voltage signal；As shown in a figures in accompanying drawing 2, during turning off, even if having the presence of strong electromagnetic, drive circuit
Receive terminal potential and be not more than threshold V T, the source electrode of Q3 is in all the time reverse-biased, does not result in IGBT and mislead；Such as
In accompanying drawing 2 shown in b figures, during turning off, due to the presence for having strong electromagnetic, drive circuit receives terminal potential may exceed threshold
Threshold voltage VT, causes IGBT misleading under cut-off signals, so as to affect the transmission of pwm control signal.
Elaborate many details in order to fully understand the utility model in the above description.But above description
Only it is preferred embodiment of the present utility model, the utility model can be with much next different from alternate manner described here
Implement, therefore the utility model is not embodied as being limited by disclosed above.Simultaneously any those skilled in the art exist
Under without departing from technical solutions of the utility model ambit, the methods and techniques content all using the disclosure above is new to this practicality
Type technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.It is every without departing from this
The content of utility model technical scheme, any simply repaiies according to technical spirit of the present utility model to made for any of the above embodiments
Change, equivalent variations and modification, still fall within the range of technical solutions of the utility model protection.
Claims (4)
1. be used for the pulse power electromagnetism jamproof system, including electro-optical conversion circuit, optical fiber transmission line, photoelectric switching circuit,
PCB transmission lines, drive circuit；It is characterized by：Dual processor controlling system produces PWM electric signals, and the PWM electric signals are input into
To the input of electro-optical conversion circuit；The electro-optical conversion circuit output end is connected with one end of optical fiber transmission line；The optical fiber
The other end of transmission line is connected with photoelectric switching circuit；The photoelectric switching circuit output end is connected with PCB transmission lines one end；
The PCB transmission lines other end is connected with drive circuit；The drive signal of the drive circuit output control IGBT switches set.
2. the electromagnetism jamproof system for the pulse power according to claim 1, it is characterized by：The electro-optic conversion electricity
PWM electric signals are converted to optical signal by road by resistance R and LED；The optical fiber transmission line connects light-emitting diodes
Photodiode PD in pipe LED and photoelectric switching circuit, realizes the Optical Fiber Transmission of pwm signal.
3. the electromagnetism jamproof system for the pulse power according to claim 1, it is characterized by：The opto-electronic conversion electricity
Photodiode PD converts optical signals to electric signal in road, by signal processing circuit by Electric signal processing be triode Q1 bases
Pole control signal, so as to control the conducting and shut-off of triode；The colelctor electrode of the triode Q1 leads to the base stage of triode Q2
Cross resistance Rb2 connections；The collector voltage signal of triode Q2 is the output electric signal of photoelectric switching circuit；The PCB transmission
The output signal of photoelectric switching circuit is delivered to drive circuit signal receiving end by line through strong electromagnetic area.
4. the electromagnetism jamproof system for the pulse power according to claim 1, it is characterized by：The drive circuit leads to
Cross setting drive circuit bias potential and constitute noise suppression circuit；Drive circuit receiving terminal receives the output electricity of photoelectric switching circuit
Signal, the electric signal is connected by resistance Rg with the grid of switching tube Q3；The source electrode of the switching tube Q3 is by source of stable pressure and ground
Connection；The drain electrode of the switching tube Q3 is connected by resistance Rd with power supply；The drain electrode of the switching tube Q3 is exported as triode
The base input signal of Q4, Q5, controls the on, off of triode Q4, Q5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044220.5U CN206149134U (en) | 2016-09-09 | 2016-09-09 | A anti jamming system of electromagnetism for pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621044220.5U CN206149134U (en) | 2016-09-09 | 2016-09-09 | A anti jamming system of electromagnetism for pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206149134U true CN206149134U (en) | 2017-05-03 |
Family
ID=58618437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621044220.5U Expired - Fee Related CN206149134U (en) | 2016-09-09 | 2016-09-09 | A anti jamming system of electromagnetism for pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206149134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245302A (en) * | 2018-09-30 | 2019-01-18 | 安徽合凯电气科技股份有限公司 | A kind of switching regulator arc-extinction device control system jamproof system |
| US10270351B1 (en) | 2018-01-19 | 2019-04-23 | Asian Power Devices Inc. | EMI-radiation suppression circuit |
-
2016
- 2016-09-09 CN CN201621044220.5U patent/CN206149134U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10270351B1 (en) | 2018-01-19 | 2019-04-23 | Asian Power Devices Inc. | EMI-radiation suppression circuit |
| TWI662775B (en) * | 2018-01-19 | 2019-06-11 | 亞源科技股份有限公司 | Emi-radiation suppression circuit |
| CN109245302A (en) * | 2018-09-30 | 2019-01-18 | 安徽合凯电气科技股份有限公司 | A kind of switching regulator arc-extinction device control system jamproof system |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170503 Termination date: 20170909 |