CN108616222A - Multi-gear output high-voltage power supply for smoke purification - Google Patents
Multi-gear output high-voltage power supply for smoke purification Download PDFInfo
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- CN108616222A CN108616222A CN201810749322.4A CN201810749322A CN108616222A CN 108616222 A CN108616222 A CN 108616222A CN 201810749322 A CN201810749322 A CN 201810749322A CN 108616222 A CN108616222 A CN 108616222A
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- 239000000779 smoke Substances 0.000 title claims abstract description 31
- 238000000746 purification Methods 0.000 title abstract 4
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 210000004899 c-terminal region Anatomy 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 9
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 239000000428 dust Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a multi-gear output high-voltage power supply for smoke dust purification, which comprises a gear selection module, a controller, an isolation driving module, a discharge alarm module, a voltage and current feedback module, a controllable rectification module, a full-bridge inversion module, a high-frequency high-voltage transformer, a voltage-doubling rectification circuit and a smoke dust purification reactor. Aiming at solving the problems of high cost, poor safety and the like of the existing smoke dust purification power supply, the invention realizes that the requirement on the transformer is not high, only the medium voltage of about 5000V is obtained through the transformer, and the voltage doubling rectification circuit provides voltage and current feedback to realize closed-loop control and fault alarm of the system; meanwhile, the gear selection module can provide outputs with different voltage grades, can be compatible with different loads, and improves the safety and the stability of the system by adopting a mode of combining a voltage doubling rectifying circuit and a transformer to replace a mode of singly using a high-frequency high-voltage transformer to obtain high voltage.
Description
Technical field
The present invention relates to a kind of multi gears for clarifying smoke to export high voltage power supply, belongs to field of environment protection.
Background technology
The flue dust of boiler combustion discharge is always the major reason for leading to environmental pollution, the sulfur dioxide contained in flue dust
It is to lead to the major reason of acid rain, therefore country has carried out stringent restriction to the dust emission standard of factory.So row
Effective flue dust removal technology has strong realistic meaning.
It carries out electrostatic to remove smoke abatement being a kind of effective approach using high voltage power supply.Currently, high voltage power supply is in electrostatic
Have to compare in terms of dedusting and be widely applied, the working method of most of high voltage power supply is all identical, i.e. industrial frequency rectifying first
Filtering, and then full-bridge inverting, boost to the high-frequency and high-voltage of 10000V or more, finally by high voltage silicon rectifier stack after through transformer
Rectifier transformer is at clarifying smoke high direct voltage.Such approach is no doubt feasible, but very high to high frequency high voltage transformer requirement,
Transformer voltage higher grade, and technical difficulty is bigger, and cost is higher, is more susceptible to the accidents such as turn-to-turn electric discharge.
Therefore it is badly in need of a kind of neither influence clarifying smoke rate, cost and not high and high security and stability clarifying smoke use
High voltage power supply.
Invention content
It is an object of the present invention to solve the problems such as existing of high cost, safety is poor, design one kind passing through repoussage again
The mode of current circuit and transformer combination realizes up to ten thousand or even 100,000 volts or more high voltage power supplies, and the technical solution is to transformation
Device is of less demanding, and the middle pressure of 5000V or so need to be only obtained by transformer, and voltage doubling rectifing circuit provides voltage and current
Feed back closed-loop control and the fault alarm of feasible system.
The present invention adopts the following technical scheme that：A kind of multi gear for clarifying smoke exports high voltage power supply, and feature exists
In, including it is gear selection module, controller, isolation drive module, electric discharge alarm module, feedback of voltage and current module, controllable whole
Flow module, full-bridge inverting module, high frequency high voltage transformer, voltage doubling rectifing circuit, clarifying smoke reactor；
The output end of the gear selection module is connected with the input terminal of the controller, the output of the controller
End is connected with the input terminal of the input terminal of the isolation drive module, the electric discharge alarm module respectively, the isolation drive
The output end of module, the controllable rectifier module output end be connected respectively with the input terminal of the full-bridge inverting module, institute
The output end for stating full-bridge inverting module is connected with the input terminal of the high frequency high voltage transformer, the high frequency high voltage transformer
Output end be connected with the input terminal of the voltage doubling rectifing circuit, the output end of the voltage doubling rectifing circuit respectively with it is described
The input terminal of feedback of voltage and current module, the clarifying smoke reactor input terminal be connected, the feedback of voltage and current mould
The output end of block is connected with the input terminal of the controller.
As a kind of preferred embodiment, the reference voltage that gear selection module determines and feedback of voltage and current module tune
Voltage after reason carries out PI controls after making the difference, and result is sent into controller, and controller generates full-bridge modules drive signal and is sent into
Isolation drive module, isolation drive module receive full-bridge modules drive signal driving full-bridge inverting module and export high-frequency alternating current,
It is then fed into pressure high-frequency ac in being exported in high frequency high voltage transformer and supplies electricity to voltage doubling rectifing circuit, voltage doubling rectifing circuit utilizes electricity
The charge and discharge of appearance and the forward conduction characteristic of high-voltage diode are realized is pressed into peak value again by the middle pressure high-frequency alternating current of input
The direct current of integral multiple is as power drives clarifying smoke reactor；220V convert alternating currents are that 310V is steady by controllable rectifier module
Determine direct current and is transferred to full-bridge inverting module；Controller judges output end according to the information that feedback of voltage and current module returns
Whether generate along side electric discharge or short trouble, exported if having control signal to electric discharge alarm module opens in time protect and
When cut-out output and alarm lamp is bright until failure removal restores normal output.
As a kind of preferred embodiment, controller uses UC3526 chips；.The chip has inverted data input,
The design of Current Voltage feedback circuit can be further simplified.
The output signal for the UC3526 chips that controller uses connects full-bridge inverting module by isolation drive module, from
And it can be minimized the electrical connection between main circuit and control circuit and interfere with each other.
As a kind of preferred embodiment, isolation drive module uses IR2112 chips；The chip have both electromagnetic isolation and
The advantages of light-coupled isolation：Small, at low cost, fast response time, strong antijamming capability.
As a kind of preferred embodiment, gear selection module includes multicontact switch K1, photocoupler set, four-way hilted broadsword
Single-throw switch ADG441, amplifier U1, divider resistance, photocoupler set include optocoupler OC1, optocoupler OC2, optocoupler OC3, the partial pressure
Resistance includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8.
As a kind of preferred embodiment, the ends A of optocoupler OC1 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC1
It is sequentially connected the contact 1, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC1 is divided into two-way, and the one of the C-terminal of optocoupler OC1
Road meets power supply VCC by resistance R2, and the another way of the C-terminal of optocoupler OC1 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN1, optocoupler OC1 terminate GND.
As a kind of preferred embodiment, the ends A of optocoupler OC2 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC2
It is sequentially connected the contact 2, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC2 is divided into two-way, and the one of the C-terminal of optocoupler OC2
Road meets power supply VCC by resistance R3, and the another way of the C-terminal of optocoupler OC2 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN2, optocoupler OC2 terminate GND.
As a kind of preferred embodiment, the ends A of optocoupler OC3 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC3
It is sequentially connected the contact 3, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC3 is divided into two-way, and the one of the C-terminal of optocoupler OC3
Road meets power supply VCC by resistance R4, and the another way of the C-terminal of optocoupler OC3 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN3, optocoupler OC3 terminate GND.
As a kind of preferred embodiment, the pin D1 of four-way single-pole single-throw switch (SPST) ADG441 is connect by resistance R8
The pin D2 of GND, four-way single-pole single-throw switch (SPST) ADG441 are sequentially connected resistance R8, GND, four-way hilted broadsword by resistance R7
The pin D3 of single-throw switch ADG441 is sequentially connected resistance R7, resistance R8, GND by resistance R6, and four-way single-pole single-throw(SPST is opened
The pin D3 for closing ADG441 passes through resistance R5 connection power supplys VCC.
As a kind of preferred embodiment, pin S1, pin S2 and the pin S3 of four-way single-pole single-throw switch (SPST) ADG441
It is all connected with the pin 3 of amplifier U1, the pin 2 and pin 8 of amplifier U1 meet GND, and the pin 4 of amplifier U1 meets power supply VCC,
The pin 1 of amplifier U1 meets GND and output reference voltage VREF.
The advantageous effect that the present invention is reached：First, the present invention is directed to the cost for how solving existing clarifying smoke power supply
High, the problems such as safety is poor, design are a kind of up to ten thousand or even ten to realize by way of voltage doubling rectifing circuit and transformer combination
The technical solution of ten thousand volts or more of high pressure, the technical solution is of less demanding to transformer, only need to obtain 5000V by transformer
The middle pressure of left and right, voltage doubling rectifing circuit provide closed-loop control and the failure report of voltage and current feedback feasible system
It is alert；Second, gear selection module of the invention can provide the output of different voltages grade, can be compatible with different loads, use
The mode of voltage doubling rectifing circuit and transformer combination improves come the mode for replacing exclusive use high frequency high voltage transformer to obtain high pressure
The safety and stability of system；Third, the information that controller of the invention can be returned according to feedback of voltage and current module
Judge whether output end generates along side electric discharge or short trouble, opens the protection alarm lamp of cut-out output in time in time if having
It is bright to be exported up to failure removal restores normal.
Description of the drawings
Fig. 1 is the overall structure connection diagram of the present invention.
Fig. 2 is the circuit diagram of the preferred embodiment of the gear selection module of the present invention.
The meaning marked in figure：21- controllable rectifier modules, 22- full-bridge inverting modules, 23- high frequency high voltage transformers, 24-
Voltage doubling rectifing circuit, 25- clarifying smoke reactors, 26- feedback of voltage and current modules, 27- electric discharge alarm modules, 28- isolation are driven
Dynamic model block, 29- controllers, 30- gear selection modules.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating this hair
Bright technical solution, and not intended to limit the protection scope of the present invention.
Fig. 1 is the overall structure connection diagram of the present invention, and the present invention proposes that a kind of multi gear for clarifying smoke exports
The specific workflow of high voltage power supply is：220V mains source by controllable rectifier module 21 by 220V AC powers by
50Hz exchange conversions at 310V stable DCs, the direct current using full-bridge inverting module 22 by the DC inverter at
High frequency high voltage transformer 23,23 low pressure of transformer and high-pressure side are sent into the output of the high-frequency alternating current of 20KHz, full-bridge inverting
Turn ratio is 1:20,23 high-pressure side of transformer will obtain the middle pressure high-frequency alternating current of the 20KHz of 5000V or so, transformer it is defeated
Go out to terminate the input terminal of voltage doubling rectifing circuit 24, voltage doubling rectifing circuit 24 is the charge and discharge and high-voltage diode using capacitance
The direct current of the integral multiple that input AC electricity is pressed into peak value again realized of forward conduction characteristic, to be taken be four to the present invention
The output of voltage-multiplying circuit, voltage doubling rectifing circuit 24 is connected to clarifying smoke reactor 25 by cable.
Feedback of voltage and current module 26 is connected to the output end of voltage doubling rectifier module 24, by sample circuit and modulate circuit structure
At the benchmark determined with gear selection module 30 after the conditioning of amplifier modulate circuit after sample circuit collection voltages current signal
Voltage is made the difference, the error signal into cross PI controllers after input controller 29.
UC3526 chips can be used in controller 29.UC3526 chips are a kind of function admirables, multiple functional and versatile
Single-chip integration pwm chip, its simple and reliable and easy to use and flexible, output driving be push-and-pull output form, increase
Driving capability；There are overcurrent protection function, frequency in inside containing undervoltage lockout circuit, SS (soft start) control circuit, PWM latch
It is adjustable, while maximum duty cycle can be limited.Error signal is sent into the No.1 foot of controller after PI controllers, and it is control to change foot
The noninverting input of device internal amplifier processed, inverting input are connected with internal amplifier output end, and internal amplifier does voltage
Follower uses, and output is made comparisons with the output triangular wave of piece internal oscillator to generate PWM drive signal, when repoussage again
When the output of flow module is less than setting benchmark, increase the duty ratio of output pwm signal, vice versa, to reach output voltage
The purpose of closed-loop control.
The full-bridge inverting module 22 that the output end of controller 29 is connected to by isolation drive unit 27.Purpose is main electricity
Road and the mutually isolated expansion to avoid failure of driving circuit.Isolation drive module 28 is using the production of IR companies of the U.S.
IR2112 chips.The advantages of IR2112 chips are with light-coupled isolation and electromagnetic isolation：It is small and simple in structure, corresponding speed
Degree is fast, common mode inhibition capacity is strong.Therefore as isolating device, two power up and down of same bridge arm can be driven to open simultaneously
Device is closed, therefore only needs 2 IR2112 that can complete the driving task of full-bridge inverting.
As a kind of preferred embodiment, gear selection module 30 includes multicontact switch K1, photocoupler set, four-way list
Monopole single throw switch ADG441, amplifier U1, divider resistance, photocoupler set include optocoupler OC1, optocoupler OC2, optocoupler OC3, described point
Piezoresistance includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8.Circuit theory
Figure is as shown in Figure 2.
As a kind of preferred embodiment, the ends A of optocoupler OC1 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC1
It is sequentially connected the contact 1, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC1 is divided into two-way, and the one of the C-terminal of optocoupler OC1
Road meets power supply VCC by resistance R2, and the another way of the C-terminal of optocoupler OC1 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN1, optocoupler OC1 terminate GND.
As a kind of preferred embodiment, the ends A of optocoupler OC2 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC2
It is sequentially connected the contact 2, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC2 is divided into two-way, and the one of the C-terminal of optocoupler OC2
Road meets power supply VCC by resistance R3, and the another way of the C-terminal of optocoupler OC2 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN2, optocoupler OC2 terminate GND.
As a kind of preferred embodiment, the ends A of optocoupler OC3 are sequentially connected resistance R1, power supply VCC, the ends K of optocoupler OC3
It is sequentially connected the contact 3, contact 0, GND of multicontact switch K1, the C-terminal of optocoupler OC3 is divided into two-way, and the one of the C-terminal of optocoupler OC3
Road meets power supply VCC by resistance R4, and the another way of the C-terminal of optocoupler OC3 connects the pin of four-way single-pole single-throw switch (SPST) ADG441
The E of IN3, optocoupler OC3 terminate GND.
As a kind of preferred embodiment, the pin D1 of four-way single-pole single-throw switch (SPST) ADG441 is connect by resistance R8
The pin D2 of GND, four-way single-pole single-throw switch (SPST) ADG441 are sequentially connected resistance R8, GND, four-way hilted broadsword by resistance R7
The pin D3 of single-throw switch ADG441 is sequentially connected resistance R7, resistance R8, GND by resistance R6, and four-way single-pole single-throw(SPST is opened
The pin D3 for closing ADG441 passes through resistance R5 connection power supplys VCC.
As a kind of preferred embodiment, pin S1, pin S2 and the pin S3 of four-way single-pole single-throw switch (SPST) ADG441
It is all connected with the pin 3 of amplifier U1, the pin 2 and pin 8 of amplifier U1 meet GND, and the pin 4 of amplifier U1 meets power supply VCC,
The pin 1 of amplifier U1 meets GND and output reference voltage VREF.
After selected gear, for example, it is 1 grade selected, and single-pole three-throw switch K1 is allocated to the gear, then corresponding optocoupler OC1
The first passage IN1 of conducting, ADG441 is pulled low to ground, D1, S1 conducting, which is the end electricity of resistance R8
Pressure, chooses suitable divider resistance, you can obtain arbitrary output voltage VREF.
After selected gear, for example, it is 2 grades selected, and single-pole three-throw switch K1 is allocated to the gear, then corresponding optocoupler OC2
The first passage IN2 of conducting, ADG441 is pulled low to ground, and D2, S2 conducting, which is resistance R8 and resistance
The terminal voltage of R7 chooses suitable divider resistance, you can obtains arbitrary output voltage VREF.
After selected gear, for example, it is 3 grades selected, and single-pole three-throw switch K1 is allocated to the gear, then corresponding optocoupler OC3
The first passage IN3 of conducting, ADG441 is pulled low to ground, and D3, S3 conducting, which is resistance R8, resistance R7
With the terminal voltage of resistance R6, suitable divider resistance is chosen, you can obtain arbitrary output voltage VREF.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improve and become
Shape also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of multi gear for clarifying smoke exports high voltage power supply, which is characterized in that including gear selection module, controller,
Isolation drive module, electric discharge alarm module, feedback of voltage and current module, controllable rectifier module, full-bridge inverting module, high-frequency and high-voltage
Transformer, voltage doubling rectifing circuit, clarifying smoke reactor；
The output end of the gear selection module is connected with the input terminal of the controller, the output end difference of the controller
It is connected with the input terminal of the input terminal of the isolation drive module, the electric discharge alarm module, the isolation drive module
Output end, the controllable rectifier module output end be connected respectively with the input terminal of the full-bridge inverting module, the full-bridge
The output end of inverter module is connected with the input terminal of the high frequency high voltage transformer, the output end of the high frequency high voltage transformer
It is connected with the input terminal of the voltage doubling rectifing circuit, the output end of the voltage doubling rectifing circuit is anti-with the voltage and current respectively
The input terminal of the input terminal, the clarifying smoke reactor of presenting module is connected, the output end of the feedback of voltage and current module
It is connected with the input terminal of the controller.
2. a kind of multi gear for clarifying smoke according to claim 1 exports high voltage power supply, which is characterized in that the shelves
The reference voltage that position selecting module determines carries out PI controls after being made the difference with the voltage after feedback of voltage and current module conditioning, and
Result is sent into the controller, the controller generates full-bridge modules drive signal and is sent into the isolation drive module, described
Isolation drive module receives the full-bridge modules drive signal and the full-bridge inverting module is driven to export high-frequency alternating current, then send
Enter pressure high-frequency ac in being exported in the high frequency high voltage transformer and supplies electricity to the voltage doubling rectifing circuit, the voltage doubling rectifing circuit profit
It is realized with the forward conduction characteristic of the charge and discharge of capacitance and high-voltage diode and the middle pressure high-frequency alternating current of input is pressed into peak again
The direct current of the integral multiple of value is as clarifying smoke reactor described in power drives；The controllable rectifier module becomes 220V alternating currents
It is changed to 310V stable DCs electricity and is transferred to the full-bridge inverting module；The controller is according to the feedback of voltage and current module
The information of return judges whether output end generates along side electric discharge or short trouble, and control signal is exported if having to the electric discharge
Alarm module opens protection cut-out output in time in time and alarm lamp is bright until failure removal restores normal output.
3. a kind of multi gear for clarifying smoke according to claim 1 exports high voltage power supply, which is characterized in that the control
Device processed uses UC3526 chips.
4. a kind of multi gear for clarifying smoke according to claim 1 exports high voltage power supply, which is characterized in that it is described every
IR2112 chips are used from drive module.
5. a kind of multi gear for clarifying smoke according to claim 1 exports high voltage power supply, which is characterized in that the shelves
Position selecting module includes multicontact switch K1, photocoupler set, four-way single-pole single-throw switch (SPST) ADG441, amplifier U1, divider resistance,
The photocoupler set includes optocoupler OC1, optocoupler OC2, optocoupler OC3, and the divider resistance includes resistance R1, resistance R2, resistance R3, electricity
Hinder R4, resistance R5, resistance R6, resistance R7, resistance R8.
6. a kind of multi gear for clarifying smoke according to claim 5 exports high voltage power supply, which is characterized in that the light
The ends A of coupling OC1 are sequentially connected resistance R1, the ends K of power supply VCC, the optocoupler OC1 are sequentially connected touching for the multicontact switch K1
Point 1, contact 0, GND, the C-terminal of the optocoupler OC1 are divided into two-way, and the C-terminal of the optocoupler OC1 connects power supply by resistance R2 all the way
VCC, the another way of the C-terminal of the optocoupler OC1 connect the pin IN1 of the four-way single-pole single-throw switch (SPST) ADG441, the optocoupler
The E of OC1 terminates GND.
7. a kind of multi gear for clarifying smoke according to claim 5 exports high voltage power supply, which is characterized in that the light
The ends A of coupling OC2 are sequentially connected resistance R1, the ends K of power supply VCC, the optocoupler OC2 are sequentially connected touching for the multicontact switch K1
Point 2, contact 0, GND, the C-terminal of the optocoupler OC2 are divided into two-way, and the C-terminal of the optocoupler OC2 connects power supply by resistance R3 all the way
VCC, the another way of the C-terminal of the optocoupler OC2 connect the pin IN2 of the four-way single-pole single-throw switch (SPST) ADG441, the optocoupler
The E of OC2 terminates GND.
8. a kind of multi gear for clarifying smoke according to claim 5 exports high voltage power supply, which is characterized in that the light
The ends A of coupling OC3 are sequentially connected resistance R1, the ends K of power supply VCC, the optocoupler OC3 are sequentially connected touching for the multicontact switch K1
Point 3, contact 0, GND, the C-terminal of the optocoupler OC3 are divided into two-way, and the C-terminal of the optocoupler OC3 connects power supply by resistance R4 all the way
VCC, the another way of the C-terminal of the optocoupler OC3 connect the pin IN3 of the four-way single-pole single-throw switch (SPST) ADG441, the optocoupler
The E of OC3 terminates GND.
9. a kind of multi gear for clarifying smoke according to claim 5 exports high voltage power supply, which is characterized in that described four
The pin D1 of channel single-pole single-throw switch (SPST) ADG441 meets GND by resistance R8, the four-way single-pole single-throw switch (SPST) ADG441's
Pin D2 is sequentially connected resistance R8, GND by resistance R7, and the pin D3 of the four-way single-pole single-throw switch (SPST) ADG441 passes through electricity
Resistance R6 is sequentially connected resistance R7, resistance R8, GND, and the pin D3 of the four-way single-pole single-throw switch (SPST) ADG441 passes through resistance R5
Connect power supply VCC.
10. a kind of multi gear for clarifying smoke according to claim 5 exports high voltage power supply, which is characterized in that described
Pin S1, pin S2 and the pin S3 of four-way single-pole single-throw switch (SPST) ADG441 are all connected with the pin 3 of the amplifier U1, described
The pin 2 and pin 8 of amplifier U1 meets GND, and the pin 4 of the amplifier U1 connects power supply VCC, the pin 1 of the amplifier U1
Meet GND and output reference voltage VREF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810749322.4A CN108616222A (en) | 2018-07-10 | 2018-07-10 | Multi-gear output high-voltage power supply for smoke purification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810749322.4A CN108616222A (en) | 2018-07-10 | 2018-07-10 | Multi-gear output high-voltage power supply for smoke purification |
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Application publication date: 20181002 |