CN205986669U - High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power - Google Patents
High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power Download PDFInfo
- Publication number
- CN205986669U CN205986669U CN201620939828.8U CN201620939828U CN205986669U CN 205986669 U CN205986669 U CN 205986669U CN 201620939828 U CN201620939828 U CN 201620939828U CN 205986669 U CN205986669 U CN 205986669U
- Authority
- CN
- China
- Prior art keywords
- resistance
- foot
- electric capacity
- output
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model relates to a frequency, the amplitude, the adjustable high frequency and high voltage alternating current power supply circuit of power, regulation and control voltage rectifying and wave -filtering and power sampling circuit respectively with master control and drive circuit, exchange output frequence control and drive circuit, it sets for and overload protection circuit to exchange output, it connects to exchange settlement of output voltage amplitude and feedback circuit, exchange output and current sampling circuit respectively with exchanges output frequence and controls and drive circuit, it sets for and overload protection circuit to exchange output, it connects to exchange settlement of output voltage amplitude and feedback circuit, master control and drive circuit respectively with exchange that output sets for and overload protection circuit, it connects to exchange settlement of output voltage amplitude and feedback circuit, power supply input respectively with master control and drive circuit, it connects to exchange output frequence control and drive circuit. The electrical circuitry is simple, and control is convenient, and the entity power supply size that this circuit corresponds is little, and the function is more, and the long term operation reliability is high, and convenience of customers uses.
Description
Technical field
This utility model is related to a kind of frequency being applied in the fields such as analytical tool, biomedicine, environmental monitoring, scientific research
Rate, amplitude, the high frequency and high voltage power supply circuit of power adjustable section.
Background technology
, based on high-voltage DC power supply, its application is also very wide for high-frequency and high-voltage power supply great majority in the market
General, and high frequency and high voltage power supply species is less, entity power volume is larger, and range of accommodation is narrow, and performance is also more single, reliable
Property not high it is impossible to meet user's request.With the development of electronics technology, the particularly expansion in the related application such as plasma field
Greatly, market is increasing to the demand of high frequency and high voltage power supply, has higher requirement to the performance of its product.
Content of the invention
In view of the deficiency that existing market exists, this utility model provides the frequency that a kind of output voltage is high, range of accommodation is wide
Rate, amplitude, the high frequency and high voltage power supply circuit of power adjustable section.
This utility model for achieving the above object, is adopted the technical scheme that：A kind of frequency, amplitude, power adjustable section
High frequency and high voltage power supply circuit, including main control and drive circuit, regulation and control voltage commutation filtering and its power samples circuit,
It is characterized in that：Also include ac output frequency control and its drive circuit, output AC power sets and overload protecting circuit,
Ac output voltage amplitude sets and its feedback circuit, exchange output and its current sampling circuit, described regulation and control voltage commutation filter
Involve its power samples circuit respectively with main control and drive circuit, ac output frequency controls and its drive circuit, exchange defeated
Go out power setting and overload protecting circuit, ac output voltage amplitude sets and its feedback circuit connects, described exchange output and
Its current sampling circuit is set with ac output frequency control and its drive circuit, output AC power and overload protection electricity respectively
Road, ac output voltage amplitude set and its feedback circuit connects, described main control and drive circuit respectively with exchange output work
Rate set and overload protecting circuit, ac output voltage amplitude set and its feedback circuit connect, supply input respectively with master control
System and drive circuit, ac output frequency control and its drive circuit connection；
Physical circuit is connected as：In described ac output frequency control and its drive circuit, supply input voltage+Vin divides
One end of other connecting resistance R41 and R42, the other end of the resistance R41 negative pole with the positive pole of electric capacity C3, Zener diode D12 respectively
It is connected and as in-line power end Vcc, the negative pole of electric capacity C3 is connected with the positive pole of Zener diode D12 and is followed by input ground GND, DC
Feeder ear 1 foot of power transfer module M1 connects the positive pole of electric capacity C30, the negative pole of diode D11, the other end of resistance R42 respectively,
Input ground end 2 foot of D/C power modular converter M1 is connected with the negative pole of electric capacity C30 and is followed by input ground GND, D/C power modular converter
Outfan 6 foot of M1 connects the positive pole of diode D11, the positive pole of electric capacity C31, feeder ear 1 foot of control chip U4 and high side respectively
Suspended power supply anode 8 foot, output ground terminal 4 foot of D/C power modular converter M1 is connected with the negative pole of electric capacity C31 and is followed by input ground
Two fixing ends 1 of GND, resistance R4 and potentiometer VR2,2 feet are in parallel, a fixing end 1 foot of potentiometer VR2 and adjustable side 3 foot
It is connected, one end of resistance R4 connects vibrator timing resistor input 2 foot of control chip U4 by resistance R3, and resistance R4's is another
End meets vibrator timing capacitor input 3 foot of control chip U4, another fixing end 2 foot of potentiometer VR2, electric capacity C27 respectively
One end, earth terminal 4 foot of control chip U4 respectively with high pressure suspending power supply negative terminal 6 foot of control chip U4, electric capacity C27 another
One end is connected and is followed by input ground GND, and diode D13 is in parallel with resistance R9, and diode D14 is in parallel with resistance R10, control chip U4
High side gate driver output end 7 foot connect the negative pole of diode D13, the lowside gate driver output end 5 of control chip U4
Foot connects the negative pole of diode D14, and the positive pole of diode D13 connects the grid of MOS audion T5, and the positive pole of diode D14 meets MOS tri-
The grid of pole pipe T4, MOS audion T4 is connected with the source electrode of T5 and is followed by input ground GND, and the drain electrode of MOS audion T5 connects transformator
Same Name of Ends 1 foot of TRF2 armature winding Lp1, the drain electrode of MOS audion T4 connects the different name end 3 of transformator TRF2 armature winding Lp2
Foot, center-side 2 foot of primary winding Lp1 and Lp2 connects inductance L3 and one end of electric capacity C17 respectively, and electric capacity C17's is another
Termination input ground GND, another termination of inductance L3 regulates and controls the positive pole of electric capacity C2 in voltage commutation filtering and its power samples circuit；
In described output AC power setting and overload protecting circuit, inverting input 6 foot of amplifier U3B connects electricity respectively
Hold one end of C24 and resistance R27, resistance R16 is in parallel with electric capacity C26, in-phase input end 5 foot of amplifier U3B passes through resistance R16
Meet input ground GND, a fixing end 1 foot of potentiometer VR1 meets input ground GND, and another fixing end 2 foot of potentiometer VR1 connects inside
Adjustable side 3 foot of reference edge Vref, potentiometer VR1 distinguishes one end of connecting resistance R28, the another of resistance R27 by resistance R29
End, another termination of resistance R28 regulates and controls the negative pole of diode D6 in voltage commutation filtering and its power samples circuit, amplifier
Outfan 7 foot of U3B one end of connecting resistance R24, the other end of electric capacity C24 respectively, resistance R5 is in parallel with electric capacity C25, resistance R24
The other end respectively one end of connecting resistance R5, the base stage of audion T3, the other end phase of the emitter stage of audion T3 and resistance R5
Even it is followed by input ground GND, the one of resistance R31 terminates positive pole 1 foot of photoelectrical coupler U5 input diode, photoelectrical coupler U5's
Colelctor electrode 4 foot of output triode is connected with the colelctor electrode of audion T3 and is followed by control chip U2 in main control and drive circuit
Voltage controling end 5 foot, negative pole 2 foot of photoelectrical coupler U5 input diode is connected with emitter stage 3 foot of output triode and is followed by
Input ground GND；
In described ac output voltage amplitude setting and its feedback circuit, resistance R18 is in parallel with electric capacity C7, resistance R18's
The positive pole of electric capacity C2 in one termination regulation and control voltage commutation filtering and its power samples circuit, the other end of resistance R18 connects electricity respectively
One end of resistance R15 and R26, another termination input ground GND of resistance R15, inverting input 2 foot of amplifier U3A connects electricity respectively
Hold one end, the other end of resistance R26 of C22, resistance R13 is in parallel with diode D9, and outfan 1 foot of amplifier U3A connects respectively
One end of resistance R14, the negative pole of diode D9, the other end of electric capacity C22, the positive pole of diode D9 connects main control and drive circuit
Voltage controling end 5 foot of middle control chip U2, resistance R25 is in parallel with electric capacity C23, and in-phase input end 3 foot of amplifier U3A is respectively
One end of connecting resistance R25 and R35, power supply negative terminal 4 foot of amplifier U3A is connected with the other end of resistance R14 and R25 respectively and is followed by
Input ground GND, power supply anode 8 foot of amplifier U3A meets in-line power end Vcc, and power supply anode 8 foot of amplifier U6A connects inside
Power supply negative terminal 4 foot of feeder ear Vcc, amplifier U6A meets input ground GND, and outfan 1 foot of amplifier U6A meets electric capacity C10 respectively
One end, the other end of resistance R35, inverting input 2 foot of amplifier U6A one end of connecting resistance R37, electric capacity C10 respectively
The other end, in-phase input end 3 foot of amplifier U6A connects adjustable side 3 foot of one end of electric capacity C11, potentiometer VR3, current potential respectively
One fixing end 1 foot of device VR3 connects internal reference end Vref, another fixing end 2 foot of potentiometer VR3 and the other end of electric capacity C11
It is connected and is followed by input ground GND, electric capacity C13 is in parallel with diode D15, and resistance R38 is in parallel with electric capacity C12, and resistance R33 and R34 goes here and there
Connection, one end one end of connecting resistance R39, negative pole of diode D15 respectively of resistance R34, the other end connecting resistance respectively of resistance R39
One end of R36 and R38, the other end of resistance R37, the positive pole of diode D15 is connected with the other end of resistance R38 and is followed by input ground
Inverting input 6 foot of GND, discharger U6B is connected with outfan 7 foot, and in-phase input end 5 foot of amplifier U6B connects electricity respectively
Hold one end, the other end of resistance R36 of C14, another termination input ground GND of electric capacity C14, outfan 7 foot of amplifier U6B leads to
Cross one end that resistance R40 meets electric capacity C32, and draw as voltage monitoring end Vdis, another termination input ground GND of electric capacity C32；
In described exchange output and its current sampling circuit, 4 feet of transformator TRF2 secondary windings Ls are divided by inductance L4
Do not connect one end, the positive pole of diode D7 of electric capacity C18, and draw as exchange output L end, transformator TRF2 secondary windings Ls's
5 feet connect 1 foot of one end of electric capacity C19, the other end of electric capacity C18, rectifier bridge B1 respectively, and the negative pole of diode D7 meets diode D8
Positive pole, the negative pole of diode D8 connects the other end of electric capacity C19 respectively by resistance R22, ac output voltage amplitude sets and
One end of resistance R33 in its feedback circuit, 3 feet of rectifier bridge B1 are drawn as exchange output N-terminal, and electric capacity C9 and resistance R19 is simultaneously
Connection, resistance R30 is in parallel with electric capacity C8, and one end of connecting resistance R19 and R30, output AC power set 2 feet of rectifier bridge B1 respectively
And in overload protecting circuit resistance R31 the other end, one end of another terminating resistor R32 of resistance R30 as current monitoring
End Idis draws, and 4 feet of rectifier bridge B1 are connected with the other end of resistance R19 and R32 and are followed by input ground GND.
The beneficial effects of the utility model are：Circuit theory is simple, easy to control, this circuit corresponding entity power volume
Little, function is more, and reliable long-term working is high.There is ac output frequency regulatory function, tuning range width, its frequency adjusts model
Enclose for 15KHz～25KHz.There is exchange output amplitude regulatory function, amplitude modulation range is big, its amplitude range of accommodation be 1KV～
10KV.There is output AC power regulatory function, adapt to power bracket width, its power regulating range is 1W～20W.With exchange
Output amplitude and output current monitoring function, are user-friendly to.
Brief description
Fig. 1 is that power circuit of the present utility model connects block diagram；
Fig. 2 is power circuit principle figure of the present utility model.
Specific embodiment
As shown in Figure 1 and Figure 2, the high frequency and high voltage power supply circuit of frequency, amplitude, power adjustable section, including main control and
Drive circuit, regulation and control voltage commutation filtering and its power samples circuit, also include ac output frequency control and its drive circuit,
Output AC power set and overload protecting circuit, ac output voltage amplitude set and its feedback circuit, exchange output and its
Current sampling circuit.
Regulation and control voltage commutation filtering and its power samples circuit respectively with main control and drive circuit, ac output frequency control
System and its drive circuit, output AC power setting and overload protecting circuit, ac output voltage amplitude set and its feedback electricity
Road connect, exchange output and its current sampling circuit respectively with ac output frequency control and its drive circuit, exchange output work
Rate sets and overload protecting circuit, ac output voltage amplitude set and its feedback circuit connects, and main control and drive circuit divide
Do not set with output AC power and overload protecting circuit, ac output voltage amplitude set and its feedback circuit is connected, power supply
Input controls with main control and drive circuit, ac output frequency respectively and its drive circuit is connected.
In above-mentioned ac output frequency control and its drive circuit, supply input voltage+Vin connecting resistance R41 and R42 respectively
One end, the other end of resistance R41 is connected with the positive pole of electric capacity C3, the negative pole of Zener diode D12 respectively and supplies as internal
Electric end Vcc, the negative pole of electric capacity C3 is connected with the positive pole of Zener diode D12 and is followed by input ground GND, D/C power modular converter M1's
Feeder ear 1 foot meets the positive pole of electric capacity C30, the negative pole of diode D11, the other end of resistance R42, D/C power modular converter M1 respectively
Input ground end 2 foot be connected with the negative pole of electric capacity C30 and be followed by input ground GND, outfan 6 foot of D/C power modular converter M1 is respectively
Meet positive pole, the positive pole of electric capacity C31, feeder ear 1 foot of control chip U4 and high side suspended power supply anode 8 foot of diode D11, DC
Output ground terminal 4 foot of power transfer module M1 is connected with the negative pole of electric capacity C31 and is followed by input ground GND, resistance R4 and potentiometer VR2
Two fixing ends 1,2 feet in parallel, a fixing end 1 foot of potentiometer VR2 is connected with adjustable side 3 foot, and one end of resistance R4 is passed through
Resistance R3 connects vibrator timing resistor input 2 foot of control chip U4, and the other end of resistance R4 connects control chip U4's respectively
Vibrator timing capacitor input 3 foot, another fixing end 2 foot of potentiometer VR2, one end of electric capacity C27, control chip U4 connects
Ground terminal 4 foot is connected with high pressure suspending power supply negative terminal 6 foot of control chip U4, the other end of electric capacity C27 respectively and is followed by input ground
GND, diode D13 is in parallel with resistance R9, and diode D14 is in parallel with resistance R10, and the high side gate driver of control chip U4 is defeated
Go out the negative pole that end 7 feet meet diode D13, lowside gate driver output end 5 foot of control chip U4 connects the negative of diode D14
Pole, the positive pole of diode D13 connects the grid of MOS audion T5, and the positive pole of diode D14 meets the grid of MOS audion T4, MOS
Audion T4 is connected with the source electrode of T5 and is followed by input ground GND, and the drain electrode of MOS audion T5 meets transformator TRF2 armature winding Lp1
Same Name of Ends 1 foot, the drain electrode of MOS audion T4 connects different name end 3 foot of transformator TRF2 armature winding Lp2, primary around
Center-side 2 foot of group Lp1 and Lp2 connects inductance L3 and one end of electric capacity C17 respectively, and another termination of electric capacity C17 inputs ground GND,
Another termination of inductance L3 regulates and controls the positive pole of electric capacity C2 in voltage commutation filtering and its power samples circuit.
In above-mentioned output AC power setting and overload protecting circuit, inverting input 6 foot of amplifier U3B connects electricity respectively
Hold one end of C24 and resistance R27, resistance R16 is in parallel with electric capacity C26, in-phase input end 5 foot of amplifier U3B passes through resistance R16
Meet input ground GND, a fixing end 1 foot of potentiometer VR1 meets input ground GND, and another fixing end 2 foot of potentiometer VR1 connects inside
Adjustable side 3 foot of reference edge Vref, potentiometer VR1 distinguishes one end of connecting resistance R28, the another of resistance R27 by resistance R29
End, another termination of resistance R28 regulates and controls the negative pole of diode D6 in voltage commutation filtering and its power samples circuit, amplifier
Outfan 7 foot of U3B one end of connecting resistance R24, the other end of electric capacity C24 respectively, resistance R5 is in parallel with electric capacity C25, resistance R24
The other end respectively one end of connecting resistance R5, the base stage of audion T3, the other end phase of the emitter stage of audion T3 and resistance R5
Even it is followed by input ground GND, the one of resistance R31 terminates positive pole 1 foot of photoelectrical coupler U5 input diode, photoelectrical coupler U5's
Colelctor electrode 4 foot of output triode is connected with the colelctor electrode of audion T3 and is followed by control chip U2 in main control and drive circuit
Voltage controling end 5 foot, negative pole 2 foot of photoelectrical coupler U5 input diode is connected with emitter stage 3 foot of output triode and is followed by
Input ground GND.
In above-mentioned ac output voltage amplitude setting and its feedback circuit, resistance R18 is in parallel with electric capacity C7, resistance R18's
The positive pole of electric capacity C2 in one termination regulation and control voltage commutation filtering and its power samples circuit, the other end of resistance R18 connects electricity respectively
One end of resistance R15 and R26, another termination input ground GND of resistance R15, inverting input 2 foot of amplifier U3A connects electricity respectively
Hold one end, the other end of resistance R26 of C22, resistance R13 is in parallel with diode D9, and outfan 1 foot of amplifier U3A connects respectively
One end of resistance R14, the negative pole of diode D9, the other end of electric capacity C22, the positive pole of diode D9 connects main control and drive circuit
Voltage controling end 5 foot of middle control chip U2, resistance R25 is in parallel with electric capacity C23, and in-phase input end 3 foot of amplifier U3A is respectively
One end of connecting resistance R25 and R35, power supply negative terminal 4 foot of amplifier U3A is connected with the other end of resistance R14 and R25 respectively and is followed by
Input ground GND, power supply anode 8 foot of amplifier U3A meets in-line power end Vcc, and power supply anode 8 foot of amplifier U6A connects inside
Power supply negative terminal 4 foot of feeder ear Vcc, amplifier U6A meets input ground GND, and outfan 1 foot of amplifier U6A meets electric capacity C10 respectively
One end, the other end of resistance R35, inverting input 2 foot of amplifier U6A one end of connecting resistance R37, electric capacity C10 respectively
The other end, in-phase input end 3 foot of amplifier U6A connects adjustable side 3 foot of one end of electric capacity C11, potentiometer VR3, current potential respectively
One fixing end 1 foot of device VR3 connects internal reference end Vref, another fixing end 2 foot of potentiometer VR3 and the other end of electric capacity C11
It is connected and is followed by input ground GND, electric capacity C13 is in parallel with diode D15, and resistance R38 is in parallel with electric capacity C12, and resistance R33 and R34 goes here and there
Connection, one end one end of connecting resistance R39, negative pole of diode D15 respectively of resistance R34, the other end connecting resistance respectively of resistance R39
One end of R36 and R38, the other end of resistance R37, the positive pole of diode D15 is connected with the other end of resistance R38 and is followed by input ground
Inverting input 6 foot of GND, discharger U6B is connected with outfan 7 foot, and in-phase input end 5 foot of amplifier U6B connects electricity respectively
Hold one end, the other end of resistance R36 of C14, another termination input ground GND of electric capacity C14, outfan 7 foot of amplifier U6B leads to
Cross one end that resistance R40 meets electric capacity C32, and draw as voltage monitoring end Vdis, another termination input ground GND of electric capacity C32.
In above-mentioned exchange output and its current sampling circuit, 4 feet of transformator TRF2 secondary windings Ls are divided by inductance L4
Do not connect one end, the positive pole of diode D7 of electric capacity C18, and draw as exchange output L end, transformator TRF2 secondary windings Ls's
5 feet connect 1 foot of one end of electric capacity C19, the other end of electric capacity C18, rectifier bridge B1 respectively, and the negative pole of diode D7 meets diode D8
Positive pole, the negative pole of diode D8 connects the other end of electric capacity C19 respectively by resistance R22, ac output voltage amplitude sets and
One end of resistance R33 in its feedback circuit, 3 feet of rectifier bridge B1 are drawn as exchange output N-terminal, and electric capacity C9 and resistance R19 is simultaneously
Connection, resistance R30 is in parallel with electric capacity C8, and one end of connecting resistance R19 and R30, output AC power set 2 feet of rectifier bridge B1 respectively
And in overload protecting circuit resistance R31 the other end, one end of another terminating resistor R32 of resistance R30 as current monitoring
End Idis draws, and 4 feet of rectifier bridge B1 are connected with the other end of resistance R19 and R32 and are followed by input ground GND.
The model of control chip U4：IR21531.
Photoelectrical coupler U5 model：P281.
The model of control chip U2：7555.
Amplifier U3 and U6 model：LF442.
Fiducial chip U1 model：LM4040.
, made entity products taking the high frequency and high voltage power supply circuit of the design as a example, through actually detected, power supply
Property indices have all reached design requirement.
For guaranteeing the reliability of power supply long-term work, when selecting components and parts, according to the requirement of actual product, take into full account
The redundancy of its each parameter.
According to real output and voltage, select transformator TRF1 and transformator TRF2.Fill when making transformator TRF2
Divide and consider the pressure problem of insulation；When output is larger, power MOS pipe T1, T4 and T5 need to consider heat dissipation problem.
Operation principle
In main control and drive circuit, Master control chip U2 adopts 7555, and it is with the group such as resistance R1, R23, electric capacity C20
Become multi-resonant oscillating circuit, export high frequency square wave pulse in outfan 3 foot of U2, drive MOS switch pipe T1 and high frequency transformer
TRF1.Various feedback signals, by voltage controling end 5 foot, control frequency and the dutycycle of output square-wave pulse, to reach control
The purpose of relevant feedback variable.At start and stop R/S end, by Transistor-Transistor Logic level, control startup and the stopping of power supply.
In regulation and control voltage commutation filtering and its power samples circuit, obtain from high frequency transformer TRF1 secondary windings
High-frequency pulse voltage, through diode D2 ~ D5 rectification, inductance L2 and electric capacity C2, C15 etc. filter, and obtain stable tens volt direct current
Voltage, the armature winding for high frequency transformer TRF2 provides excitation voltage.
In ac output frequency control and its drive circuit, input power supply+Vin passes through DC/DC power transfer module M1,
Obtain galvanic current pressure, as the power supply of control chip U4.Chip U4 adopts IR32531, is auto-oscillation type half-bridge driver,
It is recommending output mode structure that its output driving controls by former half-bridge structure reconfiguration, through switch transistor T 4, T5, drives high frequency transformer
TRF2.Meanwhile, by potentiometer VR2, within the specific limits, adjust its output frequency, and then adjust high-frequency and high-voltage exchange output
The frequency of voltage.
In output AC power setting and overload protecting circuit, it is basically unchanged in ac output voltage and regulation and control voltage
Under the conditions of, set by potentiometer VR1 and adjust, the regulation and control output current of collection on resistance R21, amplified device U3B electric current is anti-
Feedback, controls the maximum output current of regulation and control voltage, thus controlling, adjusting the peak power output of exchange output.
Ac output voltage amplitude set and its feedback circuit in, the amplitude of ac output voltage, through resistance R33,
The feedback sample such as R34, R38, deliver to inverting input 2 foot of amplifier U6A, from the ac output voltage width of potentiometer VR3
Degree setting value delivers to in-phase input end 3 foot, and their differential voltage amplified device U6A amplifies output, delivers to the same of amplifier U3A
Phase input 3 foot, regulation and control voltage passes through the Voltage Feedback such as resistance R20, R15 and electric capacity C7 and samples, and delivers to the anti-phase of amplifier U3A
Input 2 foot, they are by the amplification output of amplifier U3A, voltage controling end 5 foot of control chip U2, and then control exchange
Output voltage amplitude.
In exchange output and its current sampling circuit, directly exported from L end and N-terminal by the secondary of high frequency transformer TRF2
High-frequency ac voltage, after the rectifying and wave-filtering through diode D7, D8 and electric capacity C19 for this voltage, delivers to ac output voltage amplitude and sets
Determine and its feedback circuit.High-frequency and high-voltage exchange exports rectified bridge B1, obtains the sampling letter of ac output current on resistance R19
Number, one deliver to output AC power set and overload protecting circuit, its two after resistance R30, R32 partial pressure as output current
Monitoring side Idis draws.
Claims (1)
1. the high frequency and high voltage power supply circuit of a kind of frequency, amplitude, power adjustable section, including main control and drive circuit, tune
Control voltage commutation filtering and its power samples circuit it is characterised in that：Also include ac output frequency control and its drive circuit,
Output AC power set and overload protecting circuit, ac output voltage amplitude set and its feedback circuit, exchange output and its
Current sampling circuit, the filtering of described regulation and control voltage commutation and its power samples circuit respectively with main control and drive circuit, exchange
Output frequency controls and its drive circuit, output AC power set and overload protecting circuit, ac output voltage amplitude set
And its feedback circuit connects, described exchange output and its current sampling circuit are electric with ac output frequency control and its driving respectively
Road, output AC power setting and overload protecting circuit, ac output voltage amplitude set and its feedback circuit connects, described master
Control and drive circuit sets with output AC power respectively and overload protecting circuit, ac output voltage amplitude set and its anti-
Current feed circuit connects, and supply input controls with main control and drive circuit, ac output frequency respectively and its drive circuit is connected；
Physical circuit is connected as：In described ac output frequency control and its drive circuit, supply input voltage+Vin connects respectively
One end of resistance R41 and R42, the other end of resistance R41 is connected with the positive pole of electric capacity C3, the negative pole of Zener diode D12 respectively
And as in-line power end Vcc, the negative pole of electric capacity C3 is connected with the positive pole of Zener diode D12 and is followed by input ground GND, D/C power
Feeder ear 1 foot of modular converter M1 connects the positive pole of electric capacity C30, the negative pole of diode D11, the other end of resistance R42, DC electricity respectively
Input ground end 2 foot of source modular converter M1 is connected with the negative pole of electric capacity C30 and is followed by input ground GND, D/C power modular converter M1's
Outfan 6 foot connects the positive pole of diode D11, the positive pole of electric capacity C31, feeder ear 1 foot of control chip U4 and high lateral suspension respectively
Power positive end 8 foot, output ground terminal 4 foot of D/C power modular converter M1 is connected with the negative pole of electric capacity C31 and is followed by input ground GND, electricity
R4 is in parallel with two fixing ends 1 of potentiometer VR2,2 feet for resistance, and a fixing end 1 foot of potentiometer VR2 is connected with adjustable side 3 foot, electricity
One end of resistance R4 connects vibrator timing resistor input 2 foot of control chip U4 by resistance R3, and the other end of resistance R4 is respectively
Connect vibrator timing capacitor input 3 foot of control chip U4, another fixing end 2 foot of potentiometer VR2, one end of electric capacity C27,
Earth terminal 4 foot of the control chip U4 other end phase with high pressure suspending power supply negative terminal 6 foot of control chip U4, electric capacity C27 respectively
Even it is followed by input ground GND, diode D13 is in parallel with resistance R9, and diode D14 is in parallel with resistance R10, the high side of control chip U4
Gate drivers outfan 7 foot connects the negative pole of diode D13, and lowside gate driver output end 5 foot of control chip U4 connects two
The negative pole of pole pipe D14, the positive pole of diode D13 connects the grid of MOS audion T5, and the positive pole of diode D14 meets MOS audion T4
Grid, MOS audion T4 is connected with the source electrode of T5 and is followed by input ground GND, and the drain electrode of MOS audion T5 connects at the beginning of transformator TRF2
Same Name of Ends 1 foot of level winding Lp1, the drain electrode of MOS audion T4 connects different name end 3 foot of transformator TRF2 armature winding Lp2, transformation
Center-side 2 foot of device armature winding Lp1 and Lp2 connects inductance L3 and one end of electric capacity C17 respectively, and another termination of electric capacity C17 is defeated
Enter ground GND, another termination of inductance L3 regulates and controls the positive pole of electric capacity C2 in voltage commutation filtering and its power samples circuit；
In described output AC power setting and overload protecting circuit, inverting input 6 foot of amplifier U3B connects electric capacity respectively
C24 and one end of resistance R27, resistance R16 is in parallel with electric capacity C26, and in-phase input end 5 foot of amplifier U3B is connect by resistance R16
One fixing end 1 foot of input ground GND, potentiometer VR1 meets input ground GND, and another fixing end 2 foot of potentiometer VR1 connects internal base
Adjustable side 3 foot of quasi- end Vref, potentiometer VR1 passes through resistance R29 one end of connecting resistance R28, the other end of resistance R27 respectively,
Another termination of resistance R28 regulates and controls the negative pole of diode D6 in voltage commutation filtering and its power samples circuit, amplifier U3B's
Outfan 7 foot one end of connecting resistance R24, the other end of electric capacity C24 respectively, resistance R5 is in parallel with electric capacity C25, and resistance R24's is another
One end one end of connecting resistance R5, base stage of audion T3 respectively, after the emitter stage of audion T3 is connected with the other end of resistance R5
Connect input ground GND, positive pole 1 foot of a termination photoelectrical coupler U5 input diode of resistance R31, the output of photoelectrical coupler U5
Colelctor electrode 4 foot of audion is connected with the colelctor electrode of audion T3 and is followed by the voltage of control chip U2 in main control and drive circuit
Control end 5 foot, negative pole 2 foot of photoelectrical coupler U5 input diode is connected with emitter stage 3 foot of output triode and is followed by inputting
Ground GND；
In described ac output voltage amplitude setting and its feedback circuit, resistance R18 is in parallel with electric capacity C7, one end of resistance R18
Meet the positive pole of electric capacity C2 in regulation and control voltage commutation filtering and its power samples circuit, the other end connecting resistance R15 respectively of resistance R18
With one end of R26, another termination input ground GND of resistance R15, inverting input 2 foot of amplifier U3A meets electric capacity C22 respectively
One end, the other end of resistance R26, resistance R13 is in parallel with diode D9, the outfan 1 foot connecting resistance respectively of amplifier U3A
One end of R14, the negative pole of diode D9, the other end of electric capacity C22, the positive pole of diode D9 connects control in main control and drive circuit
Voltage controling end 5 foot of coremaking piece U2, resistance R25 is in parallel with electric capacity C23, and in-phase input end 3 foot of amplifier U3A connects electricity respectively
One end of resistance R25 and R35, power supply negative terminal 4 foot of amplifier U3A is connected with the other end of resistance R14 and R25 respectively and is followed by inputting
Ground GND, power supply anode 8 foot of amplifier U3A meets in-line power end Vcc, and power supply anode 8 foot of amplifier U6A connects in-line power
Power supply negative terminal 4 foot of end Vcc, amplifier U6A meets input ground GND, and outfan 1 foot of amplifier U6A connects the one of electric capacity C10 respectively
End, the other end of resistance R35, inverting input 2 foot of amplifier U6A respectively one end of connecting resistance R37, electric capacity C10 another
End, in-phase input end 3 foot of amplifier U6A meets adjustable side 3 foot of one end of electric capacity C11, potentiometer VR3, potentiometer VR3 respectively
A fixing end 1 foot meet internal reference end Vref, after another fixing end 2 foot of potentiometer VR3 is connected with the other end of electric capacity C11
Meet input ground GND, electric capacity C13 is in parallel with diode D15, and resistance R38 is in parallel with electric capacity C12, and resistance R33 and R34 connects, resistance
One end of R34 one end of connecting resistance R39, negative pole of diode D15 respectively, the other end of resistance R39 respectively connecting resistance R36 and
One end of R38, the other end of resistance R37, the positive pole of diode D15 is connected with the other end of resistance R38 and is followed by input ground GND,
Inverting input 6 foot of discharger U6B is connected with outfan 7 foot, and in-phase input end 5 foot of amplifier U6B meets electric capacity C14 respectively
One end, the other end of resistance R36, another termination input ground GND of electric capacity C14, outfan 7 foot of amplifier U6B passes through electricity
Resistance R40 connects one end of electric capacity C32, and draws as voltage monitoring end Vdis, another termination input ground GND of electric capacity C32；
In described exchange output and its current sampling circuit, 4 feet of transformator TRF2 secondary windings Ls are connect respectively by inductance L4
One end of electric capacity C18, the positive pole of diode D7, and draw as exchange output L end, 5 feet of transformator TRF2 secondary windings Ls
Connect one end of electric capacity C19, the other end of electric capacity C18,1 foot of rectifier bridge B1 respectively, the negative pole of diode D7 connects diode D8's
Positive pole, the negative pole of diode D8 connects the other end of electric capacity C19 respectively by resistance R22, ac output voltage amplitude sets and its
One end of resistance R33 in feedback circuit, 3 feet of rectifier bridge B1 are drawn as exchange output N-terminal, and electric capacity C9 and resistance R19 is in parallel,
Resistance R30 is in parallel with electric capacity C8,2 feet of rectifier bridge B1 respectively one end of connecting resistance R19 and R30, output AC power set and
The other end of resistance R31 in overload protecting circuit, one end of another terminating resistor R32 of resistance R30 as current monitoring end
Idis draws, and 4 feet of rectifier bridge B1 are connected with the other end of resistance R19 and R32 and are followed by input ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620939828.8U CN205986669U (en) | 2016-08-25 | 2016-08-25 | High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620939828.8U CN205986669U (en) | 2016-08-25 | 2016-08-25 | High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205986669U true CN205986669U (en) | 2017-02-22 |
Family
ID=58036205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620939828.8U Withdrawn - After Issue CN205986669U (en) | 2016-08-25 | 2016-08-25 | High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205986669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130392A (en) * | 2016-08-25 | 2016-11-16 | 东文高压电源（天津）股份有限公司 | A kind of high frequency and high voltage power supply circuit of frequency, amplitude, power adjustable joint |
-
2016
- 2016-08-25 CN CN201620939828.8U patent/CN205986669U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130392A (en) * | 2016-08-25 | 2016-11-16 | 东文高压电源（天津）股份有限公司 | A kind of high frequency and high voltage power supply circuit of frequency, amplitude, power adjustable joint |
| CN106130392B (en) * | 2016-08-25 | 2018-06-19 | 东文高压电源（天津）股份有限公司 | A kind of frequency, amplitude, power adjustable section high frequency and high voltage power supply circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106130392B (en) | A kind of frequency, amplitude, power adjustable section high frequency and high voltage power supply circuit | |
| CN102457193B (en) | There is the power supply unit of single-stage converter | |
| CN106655528B (en) | ECPT system and its Parameters design based on bilateral LC network | |
| CN204992720U (en) | Wireless charging device | |
| CN105430783B (en) | Electromagnetic oven circuit | |
| CN106463993A (en) | Low power inductive power receiver | |
| CN205986669U (en) | High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power | |
| CN203984738U (en) | For the phase-cut dimming control circuit of LED lamp | |
| CN108649788B (en) | Ultrasonic power supply | |
| CN108233749B (en) | Isolated adjustable three-phase inverter power supply | |
| CN204789742U (en) | Voltage sample modulate circuit | |
| CN108565990A (en) | A kind of wireless electric energy transmission device with constant current output characteristic | |
| CN109620990A (en) | A kind of ultrasonic wave fumigation device of constant spray amount | |
| CN206024180U (en) | A kind of LED lamp tube power driving circuit | |
| CN103219889B (en) | The multiple-channel output formula insulating power supply of electric power acquisition equipment, discrete component type isolated supplies circuit and electric power acquisition equipment | |
| CN208548831U (en) | A kind of ultrasonic power | |
| CN110504843A (en) | A kind of ultrasonic power | |
| CN213990528U (en) | Power amplifier power module of high-power digital power amplifier active loudspeaker box system | |
| CN204761311U (en) | Intelligent instrument is with many output switch power | |
| CN107742988A (en) | A kind of sine-wave power for meeting perceptual load frequent break-make and its application | |
| CN102339085B (en) | Measuring and controlling device for electromagnetic power device | |
| CN210431243U (en) | Ultrasonic power supply | |
| CN104066256B (en) | The light-dimming method of the phase-cut dimming control circuit based on LED lamp | |
| CN208423946U (en) | Wireless constant current charger | |
| CN208386255U (en) | A kind of wireless electric energy transmission device with constant current output characteristic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180619 |
|
| AV01 | Patent right actively abandoned |