CN108631641A - Circuit and method for generation occur for the sinusoidal impulse based on FPGA - Google Patents
Circuit and method for generation occur for the sinusoidal impulse based on FPGA Download PDFInfo
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- CN108631641A CN108631641A CN201810463758.7A CN201810463758A CN108631641A CN 108631641 A CN108631641 A CN 108631641A CN 201810463758 A CN201810463758 A CN 201810463758A CN 108631641 A CN108631641 A CN 108631641A
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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
Circuit and method for generation occur for the sinusoidal impulse based on FPGA.There is easy inverse corona mostly based on DC power supply in existing dedusting power source.The present invention composition include：Main circuit, control circuit（7）, main circuit includes DC voltage generating circuit, pulse voltage generation circuit, and DC voltage generating circuit includes rectified three-phase circuit（1）, rectified three-phase circuit and inverter circuit（2）Connection, inverter circuit and high frequency transformer（3）Connection, high frequency transformer and single phase rectifier circuit（4）Connection, it includes pulse transformer that circuit, which occurs, for pulse voltage（5）, resonant element, pulse transformer and single phase rectifier circuit, load（6）Connection, pulse transformer primary side shunt capacitance discharge loop, residual voltage Releasing loop, control circuit include IGBT drive circuit, current detection circuit, voltage detecting circuit, overvoltage crowbar, current foldback circuit and FPGA controller.The present invention is used for the pulse power of direct-current superposition pulse power source.
Description
Technical field：
The present invention relates to a kind of, and circuit and method for generation occur for the sinusoidal impulse based on FPGA.
Background technology：
In recent years, as the high speed development of industry, the pollutants such as industrial waste gas, waste water largely discharge, lead to global environment
Pollution, ecological disruption problem getting worse.Containing a large amount of dust particle in industrial waste gas, concentration early has reached detrimental extent,
The normal life and development for influencing the mankind, cause damages to people and biology.Must in view of the above problems, pollution administration has been for we
The problem of need facing, cleaner comes into being, and dedusting power source is an essential part in cleaner.It is existing
Dedusting power source is mostly based on DC power supply, the problem of it is low that there are efficiency of dust collections, easy inverse corona.
Invention content：
The object of the present invention is to provide a kind of, and circuit and method for generation occur for the sinusoidal impulse based on FPGA,
Coordinate DC power supply to use, effectively solves the problems, such as above-mentioned, raising efficiency of dust collection, saving electric energy.
Above-mentioned purpose is realized by following technical scheme：
A kind of sinusoidal impulse generation circuit based on FPGA, composition include：Main circuit, control circuit, the main circuit packet
DC voltage generating circuit, pulse voltage generation circuit are included, the DC voltage generating circuit includes rectified three-phase circuit, institute
The inverter circuit stated is connect with high frequency transformer, and the high frequency transformer is connect with single phase rectifier circuit, pulse electricity
Pressure life circuit includes pulse transformer, resonant element, and the pulse transformer connects with the single phase rectifier circuit, load
It connects, the pulse transformer primary side shunt capacitance discharge loop, residual voltage Releasing loop, the control circuit includes IGBT
Driving circuit, current detection circuit, voltage detecting circuit, overvoltage crowbar, current foldback circuit and FPGA controller.
Circuit occurs for the sinusoidal impulse based on FPGA, and it is RLC resonance circuits that circuit, which occurs, for the pulse voltage,
Pure oscillation wave is generated, the frequency of pulse is controlled by the turn-on and turn-off of IGBT, the RLC oscillating circuits are become using pulse
The distribution capacity C of depressor3With leakage inductance L1Resonant element is constituted, and inductance L is adjusted by change and adjusts the size of capacitance C
The width of pulse is adjusted to change the total LC values of resonant tank, changes the size of resonant circuit impedance to limit resonance current,
Take full advantage of the distributed constant of pulse transformer.
Circuit occurs for the sinusoidal impulse based on FPGA, and the pulse shaping circuit IGBT switch ends voltages pass
The voltage that sensor module is surveyed can judge the end of a cycle of oscillation, can also be used as the over-pressed detection device of switch.
Circuit occurs for a kind of sinusoidal impulse based on FPGA, and the control circuit controls inversion circuit using controller
The frequency of switch（PFM voltage regulating modes）Or duty ratio（PWM voltage regulating modes）Come control output DC voltage size, to adjust
Export the voltage of pulse；Adjust the frequency of the adjustable output pulse of frequency of pulse shaping circuit IGBT switches.
The method for generation of circuit occurs for a kind of sinusoidal impulse based on FPGA using described in one of claim 1-4,
FPGA controller controls Q according to the switching frequency of setting and switch time by IGBT drive circuit1~4Break-make, C2Side is defeated
Go out steady dc voltage；By controlling pulse shaping circuit Q5Break-make, in first negative half period of RLC ringing currents
Turn off Q5, due to the antiparallel diode D in the both ends IGBT, a complete pulse voltage wave will occur in output end；When reversed electricity
When stream is zero, voltage sensor detects Q5Switch ends bear voltage value be non-zero when, FPGA by control IGBT driving open
It promotes blood circulation and rushes the Q of transformer primary parallel connection6, remain in the voltage in primary side load capacitance during discharging pulse shaping；Instantly
When a period arrives, pulse circuit Q5Open-minded, voltage sensor detects that its both end voltage is zero at this time, turns off pulse transformer
The Q of primary side shunt circuit6；Pulse amplitude produced by this pulse generating circuit is controlled by adjusting DC voltage；Frequency is logical
Overregulate the Q in pulse shaping circuit5Switching frequency controls；Pulsewidth is controlled by the size that change adjusts capacitance and adjusts inductance
System.
Advantageous effect：
The present invention is the pulse power part of direct-current superposition pulse power source, when system works, first by DC voltage generating circuit
Steady dc voltage is generated, it is that RLC resonance circuits generate pure oscillation wave that circuit, which occurs, for pulse voltage actually, passes through IGBT
Turn-on and turn-off control the frequency of pulse.The utility model is in pulse transformer primary side shunt capacitance discharge loop, solution
Determined causes oscillation to stop and load the problem of continuing too high voltages occur since the accumulation of load capacitance residual voltage is excessively high.
The controller of control section of the present invention uses FPGA, the voltage swing and frequency of control output pulse, while also examining
It surveys the over-voltage and over-current failure of decision circuitry and controls relevant protection device action, model EP4CE6F17C8N.
The current sensor of current detection circuit of the present invention uses CHB-500S type Hall current sensor modules, detection electricity
The electric current on road acquires in real time for controller, as the signal of decision circuitry overcurrent.
The voltage sensor of voltage detecting circuit of the present invention uses CHV-100/2500 type Hall voltage sensor modules, inspection
The voltage of slowdown monitoring circuit acquires in real time for controller, as decision circuitry overvoltage and the foundation of adjusting output voltage.
The three-phase commutation bridge of main circuit of the present invention uses MDS400-16 type bridge rectifier bridges；Converting Unit IGBT uses English
Fly to insult BSM100GB120DLC types；It is suitable that pulse transformer is selected according to the size of the required turn ratio, distributed inductance and distribution capacity
Winding winding mode craft coiling.
Primary side one IGBT of parallel connection and resistance series electrical of the pulse transformer of pulse generating circuit in main circuit of the present invention
Releasing loop of the road as primary side tank circuit inductance residual voltage is solved since the accumulation of load capacitance residual voltage is excessively high
And causes oscillation to stop and the problem of continuing too high voltages occur on loading.
The current sensor of current detection circuit of the present invention uses CHB-500S type Hall current sensor modules, detection electricity
The electric current on road acquires in real time for controller, as the signal of decision circuitry overcurrent.
The voltage sensor of voltage detecting circuit of the present invention uses CHV-100/2500 type Hall voltage sensor modules, inspection
The voltage of slowdown monitoring circuit acquires in real time for controller, as decision circuitry overvoltage and the foundation of adjusting output voltage.
The FPGA controller is using the processor of the CylconeIII series of altera corp, the electricity of control output pulse
Size and frequency are pressed, while also detecting the over-voltage and over-current failure of decision circuitry and controlling relevant protection device action, model
EP4CE6F17C8N。
IGBT drivings of the present invention use KA103 pattern blocks, use high-speed photoelectric coupler to be isolated, safeguard measure is completeer
It is standby, there is signal lock-out facility.
Description of the drawings：
Attached drawing 1 is the schematic diagram of main circuit of the present invention.
Attached drawing 2 is the schematic diagram of control circuit of the present invention.
Attached drawing 3 is the schematic diagram of RLC resonance circuits of the present invention.
Attached drawing 4 is the structure diagram of the present invention.
Specific implementation mode：
Embodiment 1：
A kind of sinusoidal impulse generation circuit based on FPGA, composition include：Main circuit, control circuit, the main circuit packet
DC voltage generating circuit, pulse voltage generation circuit are included, the DC voltage generating circuit includes rectified three-phase circuit 1,
The rectified three-phase circuit is connect with inverter circuit 2, and the inverter circuit is connect with high frequency transformer 3, the high frequency
Transformer is connect with single phase rectifier circuit 4, and it includes pulse transformer 5, resonant element that circuit, which occurs, for the pulse voltage, described
Pulse transformer and the single phase rectifier circuit, load 7 connect, the pulse transformer primary side shunt capacitance discharges
Circuit, residual voltage Releasing loop, the control circuit include IGBT drive circuit, current detection circuit, voltage detecting circuit, mistake
Voltage protection circuit, current foldback circuit and FPGA controller 6.
Embodiment 2：
Circuit occurs according to the sinusoidal impulse described in embodiment 1 based on FPGA, it is that RLC is humorous that circuit, which occurs, for the pulse voltage
Shake circuit, generates pure oscillation wave, and the frequency of pulse, the RLC oscillating circuits profit are controlled by the turn-on and turn-off of IGBT
With the distribution capacity C of pulse transformer3With leakage inductance L1Resonant element is constituted, and inductance L is adjusted by change and adjusts capacitance C's
Size can change the total LC values of resonant tank to adjust the width of pulse, and it is humorous to limit to change the size of resonant circuit impedance
Shake electric current, takes full advantage of the distributed constant of pulse transformer.
Embodiment 3：
Circuit, pulse shaping circuit IGBT switches occur for the sinusoidal impulse based on FPGA according to embodiment 1 or 2
The voltage that both end voltage sensor assembly is surveyed can judge the end of a cycle of oscillation, can also be used as the overvoltage of switch
Detection device.
Embodiment 4：
According to a kind of sinusoidal impulse generation circuit based on FPGA of embodiment 1 or 2 or 3, the control circuit utilizes control
Device controls the frequency of inversion circuit switch（PFM voltage regulating modes）Or duty ratio（PWM voltage regulating modes）To control output DC voltage
Size, to adjust output pulse voltage；Adjust the adjustable output pulse of frequency of pulse shaping circuit IGBT switches
Frequency.
Embodiment 5：
The method for generation of circuit, FPGA controls occur for a kind of sinusoidal impulse based on FPGA using described in one of claim 1-4
Device processed controls Q according to the switching frequency of setting and switch time by IGBT drive circuit1~4Break-make, C2Side output is stablized
DC voltage；By controlling pulse shaping circuit Q5Break-make, RLC ringing currents first negative half period turn off Q5,
Due to the antiparallel diode D in the both ends IGBT, a complete pulse voltage wave will occur in output end；When reverse current is zero
When, voltage sensor detects Q5Switch ends bear voltage value be non-zero when, FPGA by control IGBT driving open pulse
The Q of transformer primary parallel connection6, remain in the voltage in primary side load capacitance during discharging pulse shaping；When the next period
When arrival, pulse circuit Q5Open-minded, voltage sensor detects that its both end voltage is zero at this time, shutdown pulse transformer primary side
The Q of shunt circuit6；Pulse amplitude produced by this pulse generating circuit is controlled by adjusting DC voltage；Frequency passes through adjusting
The Q in pulse shaping circuit5Switching frequency controls；Pulsewidth is controlled by the size that change adjusts capacitance and adjusts inductance.
Claims (5)
1. circuit occurs for a kind of sinusoidal impulse based on FPGA, composition includes：Main circuit, control circuit, it is characterized in that：It is described
Main circuit include DC voltage generating circuit, pulse voltage occur circuit, the DC voltage generating circuit includes three-phase
Rectification circuit, the inverter circuit are connect with high frequency transformer, and the high frequency transformer is connect with single phase rectifier circuit, institute
It includes pulse transformer, resonant element that circuit, which occurs, for the pulse voltage stated, the pulse transformer and the single-phase rectifier
Circuit, load connection, the pulse transformer primary side shunt capacitance discharge loop, residual voltage Releasing loop, the control
Circuit include IGBT drive circuit, current detection circuit, voltage detecting circuit, overvoltage crowbar, current foldback circuit and
FPGA controller.
2. circuit occurs for the sinusoidal impulse according to claim 1 based on FPGA, it is characterized in that：The pulse voltage hair
Raw circuit is RLC resonance circuits, generates pure oscillation wave, the frequency of pulse is controlled by the turn-on and turn-off of IGBT, described
RLC oscillating circuits utilize the distribution capacity C of pulse transformer3With leakage inductance L1Resonant element is constituted, and inductance L is adjusted by change
It can change the total LC values of resonant tank to adjust the width of pulse with the size for adjusting capacitance C, change resonant circuit impedance
Size limit resonance current, take full advantage of the distributed constant of pulse transformer.
3. circuit occurs for the sinusoidal impulse according to claim 1 or 2 based on FPGA, it is characterized in that：The pulse form
The voltage surveyed at circuit IGBT switch ends voltage sensor modules can judge the end of a cycle of oscillation, can also
Over-pressed detection device as switch.
4. according to a kind of sinusoidal impulse generation circuit based on FPGA of claims 1 or 2 or 3, it is characterized in that：The control
The frequency that circuit is switched using controller control inversion circuit（PFM voltage regulating modes）Or duty ratio（PWM voltage regulating modes）To control
The size for exporting DC voltage, to adjust the voltage of output pulse；The frequency for adjusting pulse shaping circuit IGBT switches is adjustable
The frequency of section output pulse.
5. the method for generation of circuit occurs for a kind of sinusoidal impulse based on FPGA using described in one of claim 1-4, special
Sign is：FPGA controller controls Q according to the switching frequency of setting and switch time by IGBT drive circuit1~4Break-make,
C2Side exports steady dc voltage；By controlling pulse shaping circuit Q5Break-make, at first of RLC ringing currents
Negative half period turns off Q5, due to the antiparallel diode D in the both ends IGBT, a complete pulse voltage wave will occur in output end；When
When reverse current is zero, voltage sensor detects Q5Switch ends bear voltage value be non-zero when, FPGA pass through control IGBT
The Q of pulse transformer primary side parallel connection is opened in driving6, remain in the electricity in primary side load capacitance during discharging pulse shaping
Pressure；When the next period arrives, pulse circuit Q5Open-minded, voltage sensor detects that its both end voltage is zero at this time, turns off arteries and veins
Rush the Q of transformer primary shunt circuit6；Pulse amplitude produced by this pulse generating circuit is controlled by adjusting DC voltage
System；The Q that frequency passes through adjusting pulse shaping circuit5Switching frequency controls；Pulsewidth adjusts capacitance by change and adjusts inductance
Size control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463758.7A CN108631641A (en) | 2018-05-15 | 2018-05-15 | Circuit and method for generation occur for the sinusoidal impulse based on FPGA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810463758.7A CN108631641A (en) | 2018-05-15 | 2018-05-15 | Circuit and method for generation occur for the sinusoidal impulse based on FPGA |
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| CN108631641A true CN108631641A (en) | 2018-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810463758.7A Pending CN108631641A (en) | 2018-05-15 | 2018-05-15 | Circuit and method for generation occur for the sinusoidal impulse based on FPGA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311376A (en) * | 2021-05-26 | 2021-08-27 | 广西电网有限责任公司南宁供电局 | Composite pulse detection device and method of CVT |
| CN113945857A (en) * | 2021-10-25 | 2022-01-18 | 上海电气风电集团股份有限公司 | Detection device and method for switching power supply |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854120A (en) * | 2009-04-01 | 2010-10-06 | 艾默龙电子科技（嘉兴）有限公司 | High-efficiency multifunctional flyback converter |
| CN103219913A (en) * | 2013-03-15 | 2013-07-24 | 东南大学 | High-voltage pulse power supply for plasma sewage treatment system |
| CN104578855A (en) * | 2013-10-16 | 2015-04-29 | 柯惠有限合伙公司 | Resonant inverter |
-
2018
- 2018-05-15 CN CN201810463758.7A patent/CN108631641A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854120A (en) * | 2009-04-01 | 2010-10-06 | 艾默龙电子科技（嘉兴）有限公司 | High-efficiency multifunctional flyback converter |
| CN103219913A (en) * | 2013-03-15 | 2013-07-24 | 东南大学 | High-voltage pulse power supply for plasma sewage treatment system |
| CN104578855A (en) * | 2013-10-16 | 2015-04-29 | 柯惠有限合伙公司 | Resonant inverter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311376A (en) * | 2021-05-26 | 2021-08-27 | 广西电网有限责任公司南宁供电局 | Composite pulse detection device and method of CVT |
| CN113945857A (en) * | 2021-10-25 | 2022-01-18 | 上海电气风电集团股份有限公司 | Detection device and method for switching power supply |
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Application publication date: 20181009 |
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