CN106061085A - High-precision isolated krypton lamp high-voltage power circuit with function of current adjustment - Google Patents
High-precision isolated krypton lamp high-voltage power circuit with function of current adjustment Download PDFInfo
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- CN106061085A CN106061085A CN201610667241.0A CN201610667241A CN106061085A CN 106061085 A CN106061085 A CN 106061085A CN 201610667241 A CN201610667241 A CN 201610667241A CN 106061085 A CN106061085 A CN 106061085A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
The invention relates to a high-precision isolated krypton lamp high-voltage power circuit with a function of current adjustment, and the circuit comprises an auxiliary power supply circuit and a control and drive circuit, and also comprises a lamp current isolation linear conversion circuit and an isolation high-voltage output and voltage and current feedback circuit. The isolation high-voltage output and voltage and current feedback circuit is connected with the auxiliary power supply circuit, the control and drive circuit and the lamp current isolation linear conversion circuit. The auxiliary power supply circuit is connected with the control and drive circuit and the lamp current isolation linear conversion circuit. The beneficial effects are that the striking and maintaining voltages are integrated into one body; the striking and maintaining voltages are switched automatically when a lamp is turned on; the circuit provided by the invention has a function of lamp current isolated linear setting and adjusting, and is good in isolated adjustment linearity; the circuit is high in performance of lamp current feedback control is high in current stabilizing precision, and is good in long-term working stability; the circuit achieves the isolated suspension high-voltage output, reduces the impact on an input end from various types of noise and disturbance of an output end, and brings convenience to a user for controlling and using a power supply.
Description
Technical field
The present invention relates to one and be widely used in the laser light pump light such as laser marking machine, laser engraving machine, laser-beam drilling machine
The high accuracy in source has the isolation krypton lamp high-voltage power circuit of electric current regulatory function.
Background technology
Krypton lamp is the light pumping source that the topmost YGA of current China connects solid state laser, and the size of lamp current determines
The brightness of krypton lamp light source, thus determine the laser intensity of laser instrument, the most most of krypton lamp high-voltage power supply specials are general
The shortcomings such as store-through is low at precision of steady current, degree of stability is poor, the laser intensity causing laser instrument is unstable, when mark or engraving, goes out
Line deviation, it addition, a lot of krypton lamp power supply takes the mode of external control to be adjusted krypton lamp lamp current, the output of most high voltage power supplies
Linearly spend difference with control signal, cause the results such as engraving, punching inaccurate, to controlling to make troubles.
Summary of the invention
The deficiency existed in view of prior art, the present invention provides that a kind of precision of steady current is high, adjust that cleanliness degree is good, stable performance
High accuracy has the isolation krypton lamp high-voltage power circuit of electric current regulatory function reliably.
The present invention for achieving the above object, is adopted the technical scheme that, a kind of high accuracy has electric current regulatory function
Isolation krypton lamp high-voltage power circuit, including auxiliary power supply circuit, control and drive circuit, it is characterised in that: also include lamp current
Isolation linear transform circuit, isolation High voltage output and feedback of voltage and current circuit, described isolation High voltage output and voltage x current are anti-
Current feed circuit is connected with auxiliary power supply circuit, control and drive circuit, lamp current isolation linear transform circuit respectively, and described auxiliary supplies
Electricity circuit respectively with control and drive circuit, lamp current isolation linear transform circuit be connected；
Physical circuit is connected as: in described lamp current isolation linear transform circuit, and zeroing end 1 foot of amplifier U6 connects current potential
One of device RW1 fixing end 1 foot, another zeroing end 8 foot of amplifier U6 connects another fixing end 2 feet of potentiometer RW1, electricity
Position adjustable side 3 foot of device RW1 is connected with power supply anode 7 foot of amplifier U6 and is followed by input side in-line power in auxiliary power supply circuit
Power supply negative terminal 4 foot of anode+Vcc1, amplifier U6 meets the in-line power negative terminal-Vcc1 of input side in auxiliary power supply circuit, amplifies
In-phase input end 3 foot of device U6 connects the inverting input 2 foot connecting resistance R8's and electric capacity C6 respectively of input ground GND, amplifier U6
Negative electrode 3 foot of photocell 1 in one end, precision photoelectric coupler U8, another termination lamp current of resistance R8 sets adjustable side Iadj,
Outfan 6 foot of amplifier U6 one end of connecting resistance R9, the other end of electric capacity C6 respectively, the other end of resistance R9 connects linear photoconductor
Negative electrode 1 foot of luminous tube in bonder U8, in precision photoelectric coupler U8, anode 2 foot of luminous tube connects in auxiliary power supply circuit defeated
Entering side in-line power anode+Vcc1, in precision photoelectric coupler U8, anode 4 foot of photocell 1 connects input ground GND, linear photoconductor
In bonder U8, anode 5 foot of photocell 2 meets isolation and amplifier ground G, and in precision photoelectric coupler U8, negative electrode 6 foot of photocell 2 divides
Other connecting resistance R25 and one end of electric capacity C7, inverting input 2 foot of amplifier U7, of potentiometer RW3 fixing end 2 feet with
Adjustable side 3 foot is connected, another fixing end 1 foot of another termination potentiometer RW3 of resistance R25, the homophase input of amplifier U7
Outfan 6 foot holding 3 feet to meet isolation and amplifier ground G, amplifier U7 connect respectively the other end of electric capacity C7, one of potentiometer RW3 solid
Fixed end 2 foot, zeroing end 1 foot of amplifier U7 connects fixing end 1 foot of potentiometer RW2, and another of amplifier U7 is adjusted
Zero end 8 foot connects another fixing end 2 feet of potentiometer RW2, adjustable side 3 foot of potentiometer RW2 and the power supply anode 7 of amplifier U7
Connected power supply negative terminal 4 foot being followed by outlet side in-line power anode+Vcc2 in auxiliary power supply circuit, amplifier U7 of foot connects auxiliary and supplies
Outlet side in-line power negative terminal-Vcc2 in electricity circuit；
In described isolation High voltage output and feedback of voltage and current circuit, Same Name of Ends 1 foot of transformator TRF secondary windings Ls is by electricity
Holding C9 and connect one end of electric capacity C11, the negative pole of diode D3, the positive pole of diode D4 respectively, the other end of electric capacity C11 connects two respectively
The negative pole of pole pipe D5, the positive pole of diode D6, electric capacity C22, diode D7, resistance R17 are in parallel, transformator TRF secondary windings Ls
Different name end 2 foot connect the positive pole of diode D3, resistance R26 and one end of electric capacity C10 and C23, the negative pole of diode D7 respectively, two
The positive pole of pole pipe D7 meets isolation and amplifier ground G and also draws, the other end of electric capacity C10 connecting resistance R34 respectively and one end of electric capacity C12,
The negative pole of diode D4, the positive pole of diode D5, the other end of electric capacity C12 connect respectively the negative pole of diode D6, the one of resistance R16
End, the other end of resistance R16 connects electric capacity C25 and one end of resistance R33 respectively, another termination isolation and amplifier ground G of electric capacity C25,
Resistance R22 is in parallel with electric capacity C14 after connecting with resistance R24, the other end of resistance R33 connecting resistance R36 and the one of electric capacity C14 respectively
End is also drawn as high-voltage output end Vo+, and diode D9 and D10 forward connects, the positive pole of diode D9 connecting resistance R34 respectively and
The other end of electric capacity C23, the negative pole of the diode D10 other end by resistance R35 connecting resistance R36, resistance R21 and electric capacity C16
Parallel connection, inverting input 2 foot of amplifier U5A connecting resistance R18 and resistance R23 and one end of electric capacity C15 respectively, resistance R23's
The other end of another termination capacitor C14, in-phase input end 3 foot of amplifier U5A one end of connecting resistance R21, auxiliary power supply respectively
Outfan 1 foot of outlet side reference voltage terminal Vr1 in circuit, amplifier U5A one end of connecting resistance R19 and R20, electric capacity respectively
The other end of C15, negative terminal 4 foot other end respectively with resistance R18 and R20 and R21 of powering of amplifier U5A is connected and is followed by isolation
Power supply anode 8 foot of output ground G, amplifier U5A connects outlet side in-line power anode+Vcc2, amplifier in auxiliary power supply circuit
Inverting input 6 foot of U5B connecting resistance R30 and one end of electric capacity C19 and C20, the other end of resistance R26 respectively, resistance R30's
Outlet side reference voltage terminal Vr1, resistance R29 and electric capacity C26 are in parallel for another termination, and in-phase input end 5 foot of amplifier U5B is respectively
Connecting resistance R29 and one end of resistance R31, amplifier U7 in another termination lamp current isolation linear transform circuit of resistance R31
Outfan 6 foot, outfan 7 foot of amplifier U5B meets the positive pole of diode D11, the other end of electric capacity C19, diode D11 respectively
Negative pole connect the positive pole of electric capacity C18, one end of resistance R27 respectively, the other end of resistance R27 one end of connecting resistance R28 respectively, three
The base stage of pole pipe T2, the emitter stage of audion T2 is connected is followed by with negative pole, the other end of resistance R28 and R29 of electric capacity C18 respectively
Isolation and amplifier ground G, the colelctor electrode of audion T2 connects one end of electric capacity C17, light thermocouple respectively with the other end of resistance R19 after being connected
Input diode positive pole 1 foot of clutch U4, input diode negative pole 2 foot of photoelectrical coupler U4 and the other end phase of electric capacity C17
Connect the positive pole of diode D8 after Lian by resistance R32, the negative pole of diode D8 connects G, the photoelectrical coupler U4 output of isolation and amplifier ground
Colelctor electrode 4 foot of audion connects in-line power end Vcc in control and drive circuit, the transmitting of photoelectrical coupler U4 output triode
One end of pole 3 foot connecting resistance R11 and R12 respectively, another termination control of another termination input ground GND, resistance R11 of resistance R12
5 feet of control chip U2 in system and drive circuit.
The invention has the beneficial effects as follows: build-up of luminance and maintenance voltage integrated design, when lamp load is lighted, two voltages are cut automatically
Change；Having lamp current isolation and linearly set regulatory function, isolation tuning linearity is good；High performance lamp current feedback control, surely
Stream precision is high, and long-term working stability is good；Isolating floated High voltage output, the various noise disturbances etc. reducing outfan have influence on
Input, facilitates user to the control of power supply and use.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of power circuit of the present invention；
Fig. 2 is the schematic diagram of power circuit of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, a kind of high accuracy has the isolation krypton lamp high-voltage power circuit of electric current regulatory function, including auxiliary
Power supply circuits, control and drive circuit, also include that lamp current isolation linear transform circuit, isolation High voltage output and voltage x current are anti-
Current feed circuit.
Isolation High voltage output and feedback of voltage and current circuit respectively with auxiliary power supply circuit, control and drive circuit, lamp electricity
Stream isolation linear transform circuit connect, auxiliary power supply circuit respectively with control and drive circuit, lamp current isolation linear transformation electricity
Road connects.
In above-mentioned lamp current isolation linear transform circuit, zeroing end 1 foot of amplifier U6 connects one of potentiometer RW1
Fixing end 1 foot, another zeroing end 8 foot of amplifier U6 connects another fixing end 2 feet of potentiometer RW1, the tune of potentiometer RW1
Joint end 3 foot is connected with power supply anode 7 foot of amplifier U6 and is followed by input side in-line power anode+Vcc1 in auxiliary power supply circuit,
Power supply negative terminal 4 foot of amplifier U6 connects the in-line power negative terminal-Vcc1 of input side in auxiliary power supply circuit, the homophase of amplifier U6
Input 3 foot connects inverting input 2 foot connecting resistance R8 and one end of electric capacity C6, the linear light respectively of input ground GND, amplifier U6
Negative electrode 3 foot of photocell 1 in electric coupler U8, another termination lamp current of resistance R8 sets adjustable side Iadj, amplifier U6's
Outfan 6 foot one end of connecting resistance R9, the other end of electric capacity C6 respectively, the other end of resistance R9 connects in precision photoelectric coupler U8
Negative electrode 1 foot of luminous tube, in precision photoelectric coupler U8, anode 2 foot of luminous tube connects the internal confession of input side in auxiliary power supply circuit
Electricity anode+Vcc1, in precision photoelectric coupler U8, anode 4 foot of photocell 1 meets input ground GND, in precision photoelectric coupler U8
Anode 5 foot of photocell 2 meets isolation and amplifier ground G, negative electrode 6 foot of photocell 2 connecting resistance R25 respectively in precision photoelectric coupler U8
With one end, inverting input 2 foot of amplifier U7 of electric capacity C7, of potentiometer RW3 fixing end 2 feet and adjustable side 3 foot phase
Even, another fixing end 1 foot of another termination potentiometer RW3 of resistance R25, in-phase input end 3 foot of amplifier U7 connects isolation
Outfan 6 foot of output ground G, amplifier U7 connects fixing end 2 feet of the other end of electric capacity C7, potentiometer RW3 respectively, amplifies
One zeroing end 1 foot of device U7 connects fixing end 1 foot of potentiometer RW2, and another zeroing end 8 foot of amplifier U7 connects current potential
Another fixing end 2 feet of device RW2, adjustable side 3 foot of potentiometer RW2 be connected with power supply anode 7 foot of amplifier U7 be followed by auxiliary
Power supply negative terminal 4 foot helping outlet side in-line power anode+Vcc2 in power supply circuits, amplifier U7 connects in auxiliary power supply circuit and exports
Side in-line power negative terminal-Vcc2.
In above-mentioned isolation High voltage output and feedback of voltage and current circuit, Same Name of Ends 1 foot of transformator TRF secondary windings Ls leads to
Crossing electric capacity C9 and connect one end of electric capacity C11, the negative pole of diode D3, the positive pole of diode D4 respectively, the other end of electric capacity C11 is respectively
Meet the negative pole of diode D5, the positive pole of diode D6, electric capacity C22 and diode D7 and resistance R17 is in parallel, TRF level of transformator
Different name end 2 foot of winding Ls meets the positive pole of diode D3, resistance R26 and one end of electric capacity C10 and C23, diode D7 respectively
Negative pole, the positive pole of diode D7 meets isolation and amplifier ground G and draws, the other end of electric capacity C10 connecting resistance R34 and electric capacity C12 respectively
One end, the negative pole of diode D4, the positive pole of diode D5, the other end of electric capacity C12 connects the negative pole of diode D6, resistance respectively
One end of R16, the other end of resistance R16 connects electric capacity C25 and one end of resistance R33 respectively, and another termination isolation of electric capacity C25 is defeated
Go out after ground G, resistance R22 connect with resistance R24 in parallel with electric capacity C14, the other end of resistance R33 connecting resistance R36 and electric capacity respectively
One end of C14, and draw as high-voltage output end Vo+, diode D9 and D10 forward connects, and the positive pole of diode D9 connects respectively
Resistance R34 and the other end of electric capacity C23, the negative pole of the diode D10 other end by resistance R35 connecting resistance R36, resistance R21
In parallel with electric capacity C16, inverting input 2 foot of amplifier U5A connecting resistance R18 and resistance R23 and one end of electric capacity C15 respectively,
The other end of another termination capacitor C14 of resistance R23, one end of in-phase input end 3 foot of amplifier U5A connecting resistance R21 respectively,
The one of outfan 1 foot of outlet side reference voltage terminal Vr1 in auxiliary power supply circuit, amplifier U5A connecting resistance R19 and R20 respectively
End, the other end of electric capacity C15, negative terminal 4 foot other end respectively with resistance R18 and R20 and R21 of powering of amplifier U5A is connected
Be followed by isolation and amplifier ground G, amplifier U5A power supply anode 8 foot connect outlet side in-line power anode in auxiliary power supply circuit+
Inverting input 6 foot of Vcc2, amplifier U5B connecting resistance R30 respectively and one end of electric capacity C19 and C20, resistance R26 another
End, another termination outlet side reference voltage terminal Vr1, resistance R29 and the electric capacity C26 of resistance R30 are in parallel, the homophase of amplifier U5B
Input 5 foot connecting resistance R29 and one end of resistance R31 respectively, another termination lamp current isolation linear transform circuit of resistance R31
Outfan 6 foot of middle amplifier U7, outfan 7 foot of amplifier U5B connect respectively the positive pole of diode D11, electric capacity C19 another
End, the negative pole of diode D11 connects the positive pole of electric capacity C18, one end of resistance R27 respectively, the other end of resistance R27 connecting resistance respectively
One end of R28, the base stage of audion T2, the emitter stage of audion T2 respectively with the negative pole of electric capacity C18, resistance R28 and R29 another
One end is connected and is followed by isolation and amplifier ground G, and the colelctor electrode of audion T2 meets electric capacity C17 after being connected with the other end of resistance R19 respectively
One end, input diode positive pole 1 foot of photoelectrical coupler U4, input diode negative pole 2 foot of photoelectrical coupler U4 and electric capacity
Connect the positive pole of diode D8 after the other end of C17 is connected by resistance R32, the negative pole of diode D8 connects isolation and amplifier ground G, photoelectricity
Colelctor electrode 4 foot of bonder U4 output triode connects in-line power end Vcc, photoelectrical coupler U4 output in control and drive circuit
One end of emitter stage 3 foot of audion connecting resistance R11 and R12 respectively, another termination input ground GND, resistance R11 of resistance R12
Another termination control and 5 feet of control chip U2 in drive circuit.
The model of amplifier U5 is: HA17358B, and amplifier U6, the model of amplifier U7 be: OP07A, photoelectrical coupler
The model of U4 is: TLP621, and the model of precision photoelectric coupler U8 is HCNR201.
For ensureing the resistance to pressure request of isolation of power supply, when transformator makes, between primary and secondary coil, reinforced insulation processes, coiling
After completing, transformator is by the way of dipping lacquer, to strengthen the insulation between winding；M1 and M2 is small-power isolation DC/DC module electricity
Source, it all needs with linear optical coupling U8 and optocoupler U4 etc. to meet the design requirement that isolation is pressure；
For guaranteeing the relevant components and parts in the degree of stability of lamp current, current sample and feedback control loop, low noise, low need to be selected
Temperature drift, the components and parts of high stability, the components and parts of High voltage output part to consider certain pressure redundancy.
Operation principle
In auxiliary power supply circuit, M1 and M2 is that small-power isolates DC/DC modular power source, and it is input, both sides are isolated in output
Control circuit provides auxiliary power supply voltage ± Vcc1, ± Vcc2 and reference voltage V r1.Chip U1, U3 are that whole power circuit carries
For reference voltage.
Controlling and in drive circuit, control chip U2(7555), the composition multi-harmonic-oscillations electricity such as resistance R5, R7 and electric capacity C3
Road, output duty cycle adjustable square-wave signal pulse, drive MOS audion T1, and then driving transformer TRF.By controlling, adjusting
The voltage controling end 5 foot current potential of joint U2 chip, the output pulse duty factor of regulation and control control chip U2 outfan 3 foot.
In lamp current isolation linear transform circuit, the shielding wire of the composition voltage such as amplifier U6 and U7 and linear optical coupling U8
Property conversion, make the input side lamp current of external control set regulation voltage Iadj, by isolated variable, remove regulation and control output lamp at outlet side
The size of electric current.
In isolation High voltage output and feedback of voltage and current circuit, the high voltage pulse of TRF level output of transformator, through repeatedly
High pressure is exported after voltage multiplying rectifier and filtering.Two multiplication of voltages obtained by resistance R34 are exported, through diode D9, D10 and resistance R35,
R36, is connected with high-voltage output end.When krypton lamp load starts, it is high-impedance state, and output electric current is almost nil, resistance R16,
Pressure drop on R33 is the least, and outfan high pressure is higher than two multiplication of voltage outputs, and diode D9, D10 are reverse-biased, are krypton lamp at high-voltage output end
Load provides starting voltage；After krypton lamp load punctures work, it transfers low resistive state to, and output electric current increases, resistance R16, R33
On pressure drop increase therewith, output end voltage decline, until outfan high pressure less than two multiplication of voltages output, diode D9, D10 lead
Logical, two multiplication of voltage output loop work, now high-voltage output end provides for krypton lamp load and maintains voltage.
Krypton lamp load current is sampled by resistance R17, it is thus achieved that lamp current sampled signal by high-precision amplifying,
And control drive circuit etc., complete the control to krypton lamp lamp current, it is achieved stable lamp current output.
Claims (1)
1. high accuracy has an isolation krypton lamp high-voltage power circuit for electric current regulatory function, including auxiliary power supply circuit, control
And drive circuit, it is characterised in that: also include lamp current isolation linear transform circuit, isolation High voltage output and feedback of voltage and current
Circuit, described isolation High voltage output and feedback of voltage and current circuit respectively with auxiliary power supply circuit, control and drive circuit, lamp electricity
Stream isolation linear transform circuit connect, described auxiliary power supply circuit respectively with control and drive circuit, lamp current isolation is linear becomes
Change circuit to connect；
Physical circuit is connected as: in described lamp current isolation linear transform circuit, and zeroing end 1 foot of amplifier U6 connects current potential
One of device RW1 fixing end 1 foot, another zeroing end 8 foot of amplifier U6 connects another fixing end 2 feet of potentiometer RW1, electricity
Position adjustable side 3 foot of device RW1 is connected with power supply anode 7 foot of amplifier U6 and is followed by input side in-line power in auxiliary power supply circuit
Power supply negative terminal 4 foot of anode+Vcc1, amplifier U6 meets the in-line power negative terminal-Vcc1 of input side in auxiliary power supply circuit, amplifies
In-phase input end 3 foot of device U6 connects the inverting input 2 foot connecting resistance R8's and electric capacity C6 respectively of input ground GND, amplifier U6
Negative electrode 3 foot of photocell 1 in one end, precision photoelectric coupler U8, another termination lamp current of resistance R8 sets adjustable side Iadj,
Outfan 6 foot of amplifier U6 one end of connecting resistance R9, the other end of electric capacity C6 respectively, the other end of resistance R9 connects linear photoconductor
Negative electrode 1 foot of luminous tube in bonder U8, in precision photoelectric coupler U8, anode 2 foot of luminous tube connects in auxiliary power supply circuit defeated
Entering side in-line power anode+Vcc1, in precision photoelectric coupler U8, anode 4 foot of photocell 1 connects input ground GND, linear photoconductor
In bonder U8, anode 5 foot of photocell 2 meets isolation and amplifier ground G, and in precision photoelectric coupler U8, negative electrode 6 foot of photocell 2 divides
Other connecting resistance R25 and one end of electric capacity C7, inverting input 2 foot of amplifier U7, of potentiometer RW3 fixing end 2 feet with
Adjustable side 3 foot is connected, another fixing end 1 foot of another termination potentiometer RW3 of resistance R25, the homophase input of amplifier U7
Outfan 6 foot holding 3 feet to meet isolation and amplifier ground G, amplifier U7 connect respectively the other end of electric capacity C7, one of potentiometer RW3 solid
Fixed end 2 foot, zeroing end 1 foot of amplifier U7 connects fixing end 1 foot of potentiometer RW2, and another of amplifier U7 is adjusted
Zero end 8 foot connects another fixing end 2 feet of potentiometer RW2, adjustable side 3 foot of potentiometer RW2 and the power supply anode 7 of amplifier U7
Connected power supply negative terminal 4 foot being followed by outlet side in-line power anode+Vcc2 in auxiliary power supply circuit, amplifier U7 of foot connects auxiliary and supplies
Outlet side in-line power negative terminal-Vcc2 in electricity circuit；
In described isolation High voltage output and feedback of voltage and current circuit, Same Name of Ends 1 foot of transformator TRF secondary windings Ls is by electricity
Holding C9 and connect one end of electric capacity C11, the negative pole of diode D3, the positive pole of diode D4 respectively, the other end of electric capacity C11 connects two respectively
The negative pole of pole pipe D5, the positive pole of diode D6, electric capacity C22, diode D7, resistance R17 are in parallel, transformator TRF secondary windings Ls
Different name end 2 foot connect the positive pole of diode D3, resistance R26 and one end of electric capacity C10 and C23, the negative pole of diode D7 respectively, two
The positive pole of pole pipe D7 meets isolation and amplifier ground G and also draws, the other end of electric capacity C10 connecting resistance R34 respectively and one end of electric capacity C12,
The negative pole of diode D4, the positive pole of diode D5, the other end of electric capacity C12 connect respectively the negative pole of diode D6, the one of resistance R16
End, the other end of resistance R16 connects electric capacity C25 and one end of resistance R33 respectively, another termination isolation and amplifier ground G of electric capacity C25,
Resistance R22 is in parallel with electric capacity C14 after connecting with resistance R24, the other end of resistance R33 connecting resistance R36 and the one of electric capacity C14 respectively
End is also drawn as high-voltage output end Vo+, and diode D9 and D10 forward connects, the positive pole of diode D9 connecting resistance R34 respectively and
The other end of electric capacity C23, the negative pole of the diode D10 other end by resistance R35 connecting resistance R36, resistance R21 and electric capacity C16
Parallel connection, inverting input 2 foot of amplifier U5A connecting resistance R18 and resistance R23 and one end of electric capacity C15 respectively, resistance R23's
The other end of another termination capacitor C14, in-phase input end 3 foot of amplifier U5A one end of connecting resistance R21, auxiliary power supply respectively
Outfan 1 foot of outlet side reference voltage terminal Vr1 in circuit, amplifier U5A one end of connecting resistance R19 and R20, electric capacity respectively
The other end of C15, negative terminal 4 foot other end respectively with resistance R18 and R20 and R21 of powering of amplifier U5A is connected and is followed by isolation
Power supply anode 8 foot of output ground G, amplifier U5A connects outlet side in-line power anode+Vcc2, amplifier in auxiliary power supply circuit
Inverting input 6 foot of U5B connecting resistance R30 and one end of electric capacity C19 and C20, the other end of resistance R26 respectively, resistance R30's
Outlet side reference voltage terminal Vr1, resistance R29 and electric capacity C26 are in parallel for another termination, and in-phase input end 5 foot of amplifier U5B is respectively
Connecting resistance R29 and one end of resistance R31, amplifier U7 in another termination lamp current isolation linear transform circuit of resistance R31
Outfan 6 foot, outfan 7 foot of amplifier U5B meets the positive pole of diode D11, the other end of electric capacity C19, diode D11 respectively
Negative pole connect the positive pole of electric capacity C18, one end of resistance R27 respectively, the other end of resistance R27 one end of connecting resistance R28 respectively, three
The base stage of pole pipe T2, the emitter stage of audion T2 is connected is followed by with negative pole, the other end of resistance R28 and R29 of electric capacity C18 respectively
Isolation and amplifier ground G, the colelctor electrode of audion T2 connects one end of electric capacity C17, light thermocouple respectively with the other end of resistance R19 after being connected
Input diode positive pole 1 foot of clutch U4, input diode negative pole 2 foot of photoelectrical coupler U4 and the other end phase of electric capacity C17
Connect the positive pole of diode D8 after Lian by resistance R32, the negative pole of diode D8 connects G, the photoelectrical coupler U4 output of isolation and amplifier ground
Colelctor electrode 4 foot of audion connects in-line power end Vcc in control and drive circuit, the transmitting of photoelectrical coupler U4 output triode
One end of pole 3 foot connecting resistance R11 and R12 respectively, another termination control of another termination input ground GND, resistance R11 of resistance R12
5 feet of control chip U2 in system and drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610667241.0A CN106061085B (en) | 2016-08-15 | 2016-08-15 | A kind of high accuracy has the function of the isolation krypton lamp high-voltage power circuit of current regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610667241.0A CN106061085B (en) | 2016-08-15 | 2016-08-15 | A kind of high accuracy has the function of the isolation krypton lamp high-voltage power circuit of current regulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106061085A true CN106061085A (en) | 2016-10-26 |
| CN106061085B CN106061085B (en) | 2018-04-20 |
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|---|---|---|---|
| CN201610667241.0A Active CN106061085B (en) | 2016-08-15 | 2016-08-15 | A kind of high accuracy has the function of the isolation krypton lamp high-voltage power circuit of current regulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071820A (en) * | 2021-11-19 | 2022-02-18 | 杭州春来科技有限公司 | Krypton light source driving circuit |
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| CN101295933A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院自动化研究所 | Frequency conversion power source based on digital signal processor controlling |
| US8344628B2 (en) * | 2008-09-12 | 2013-01-01 | Panasonic Corporation | Dimming electronic ballast with lamp end of life detection |
| CN205946298U (en) * | 2016-08-15 | 2017-02-08 | 东文高压电源（天津）股份有限公司 | High accuracy has isolation krypton lamp high voltage power supply circuit of electric current regulatory function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295933A (en) * | 2007-04-25 | 2008-10-29 | 中国科学院自动化研究所 | Frequency conversion power source based on digital signal processor controlling |
| US8344628B2 (en) * | 2008-09-12 | 2013-01-01 | Panasonic Corporation | Dimming electronic ballast with lamp end of life detection |
| CN205946298U (en) * | 2016-08-15 | 2017-02-08 | 东文高压电源（天津）股份有限公司 | High accuracy has isolation krypton lamp high voltage power supply circuit of electric current regulatory function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071820A (en) * | 2021-11-19 | 2022-02-18 | 杭州春来科技有限公司 | Krypton light source driving circuit |
| CN114071820B (en) * | 2021-11-19 | 2023-10-31 | 杭州泽天春来科技有限公司 | Krypton lamp light source driving circuit |
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| CN106061085B (en) | 2018-04-20 |
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