CN106061084A - High-precision dedicated high-voltage module power supply for mercury lamp - Google Patents
High-precision dedicated high-voltage module power supply for mercury lamp Download PDFInfo
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- CN106061084A CN106061084A CN201610667232.1A CN201610667232A CN106061084A CN 106061084 A CN106061084 A CN 106061084A CN 201610667232 A CN201610667232 A CN 201610667232A CN 106061084 A CN106061084 A CN 106061084A
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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
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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
- H05B41/36—Controlling
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a high-precision dedicated high-voltage module power supply for a mercury lamp, and the power supply comprises a power circuit disposed in a metal mesh box. The power circuit comprises an AC input rectification filter circuit and an AC/DC isolation conversion circuit, and also comprises a lamp current control and output circuit. The AC input rectification filter circuit is connected with the AC input rectification filter circuit and the lamp current control and output circuit. The beneficial effects of the invention are that the high-voltage module power supply employs AC 220V input, and rings convenience to a user for use; the high-voltage module power supply is quick in dynamic response, and is small in electromagnetic interference; the high-voltage module power supply employs self-vibration constant-frequency amplitude modulation control, employs a push-pull drive structure, is larger in output power, and is high in current-stabilizing precision; the high-voltage module power supply has functions of output lamp current modulation and monitoring, and achieves the linear control of the light intensity of the mercury lamp; the high-voltage module power supply employs an integrated design of working and striking high voltages, improves the reliability of a power supply, and prolongs the service life of the mercury lamp; the high-voltage module power supply is compact in structure, is smaller in size than a conventional high-voltage module power supply, and is good in long-term working stability.
Description
Technical field
The present invention relates to a kind of high accuracy hydrargyrum being widely used in the fields such as illumination, medical science, fluorescence analysis, semiconductor lithography
Lamp high-voltage module power supply special.
Background technology
Existing mercury lamp power supply product major part uses direct current supply, and power supply power consumption is high, volume is bigger, it has not been convenient to user makes
With.Starting voltage and the most independent control of running voltage, circuit is more complicated, and electromagnetic interference is relatively big, dynamic response is slow, output
Lamp current precision is the highest, and lamp current is non-adjustable.Along with the continuous expansion of mercury lamp application, the performance of mercury lamp power supply is proposed
Requirements at the higher level, overall dimensions is little, consumes energy low, and precision of steady current is high and adjustable, Alternating Current Power Supply input etc. becomes becoming of future development
Gesture.
Summary of the invention
In view of the deficiencies in the prior art, the invention provides that a kind of circuit is simple, dynamic response fast, alternating voltage input,
Build-up of luminance working voltage integrated design, lamp current adjustable high accuracy mercury lamp high-voltage module power supply special.
The present invention for achieving the above object, is adopted the technical scheme that: a kind of high accuracy mercury lamp special high-pressure module electricity
Source, including the power circuit being arranged in wire netting box, described power circuit includes exchanging input rectifying filter circuit, AC/DC
Isolated variable circuit, it is characterised in that: also including lamp current control and output circuit, described AC/DC isolated variable circuit is respectively
Controlling with exchange input rectifying filter circuit, lamp current and output circuit is connected, power circuit is provided with six exits and one
Outside regulator potentiometer；
Physical circuit is connected as: described lamp current controls and in output circuit, the different name end 1 of transformator TRF1 secondary coil Ls1
Foot connects the positive pole of diode D4, the negative pole of diode D4 respectively with positive pole, resistance R3 and R5 and R6 and the inductance L2 of electric capacity C7
One end connects, and the negative pole of electric capacity C7 is connected with Same Name of Ends 2 foot of transformator TRF1 secondary coil Ls1 and is followed by output ground G, controls core
Feeder ear 1 foot of sheet U3 be connected with high side suspended power supply anode 8 foot of control chip U3 after respectively with the positive pole of electric capacity C8, two
The negative pole of pole pipe D15, the other end of resistance R3 connect and as in-line power end Vcc, the negative pole of electric capacity C8 is with diode D15's
Connected fixing end 2 feet being followed by output ground G, potentiometer RW1 of positive pole are connected with adjustable side 3 foot, the vibration of control chip U3
Device timing resistor input 2 foot connects fixing end 2 foot of potentiometer RW1 by resistance R4, another fixing end 1 of potentiometer RW1
Foot is connected with one end of electric capacity C9 and oscillator timing capacitor input 3 foot of control chip U3 respectively, the other end of electric capacity C9
It is connected with earth terminal 4 foot of control chip U3 and high pressure suspending power supply negative terminal 6 foot of control chip U3 respectively and is followed by output ground G,
Resistance R10 is in parallel with diode D13, and lowside gate driver output end 5 foot of control chip U3 connects the negative pole of diode D13,
The positive pole of diode D13 is connected with one end, the grid of MOS audion T2 of electric capacity C18 respectively, the other end of electric capacity C18 and MOS
The source electrode of audion T2 be connected be followed by the drain electrode of output ground G, MOS audion T2 respectively with negative pole, the transformator of luminous tube D7
The different name end g foot of TRF2 primary coil Lp2-2 connects, one end of the positive pole connecting resistance R12 of luminous tube D7, resistance R8 and diode
D12 is in parallel, and high side gate driver output end 7 foot of control chip U3 connects the negative pole of diode D12, the positive pole of diode D12
It is connected with grid, one end of electric capacity C17 of MOS audion T1 respectively, the other end of electric capacity C17 and the source electrode of MOS audion T1
Be connected be followed by the drain electrode of output ground G, MOS audion T1 respectively with the other end, the transformator TRF2 primary coil Lp2-of resistance R12
The Same Name of Ends e foot of 1 connects, the other end of inductance L2 respectively with the positive pole of electric capacity C11 and transformator TRF2 primary coil Lp2-1
Different name end f foot connects, and the negative pole of electric capacity C11 meets output ground G, and Same Name of Ends 3 foot of transformator TRF2 secondary coil Ls2 passes through inductance
L3 connects one end of electric capacity C12 and draws as one of outfan Voh, and different name end 4 foot of transformator TRF2 secondary coil Ls2 is respectively
Being connected with the other end of electric capacity C12, the positive pole of diode D8, the negative pole of diode D9, resistance R13 is in parallel with electric capacity C13, two poles
The negative pole of pipe D8 with D10 distinguishes one end of connecting resistance R13 and R14 after being connected, the positive pole of diode D10 is negative with diode D11's
Extremely being connected and draw as another output end vo l, the positive pole of diode D11 with D9 is connected with the other end of resistance R13 and is followed by
Output ground G also draws, and of potentiometer RW2 fixing end 2 feet are connected with adjustable side 3 foot, the other end of resistance R14 respectively with electricity
Resistance one end of R15, fixing end 2 feet of potentiometer RW2, the positive pole of electric capacity C14 connect, the in-phase input end 3 of amplifier U5A
Foot one end of connecting resistance R18, the other end of resistance R15 respectively, power supply anode 8 foot of amplifier U5A meets in-line power end Vcc,
Power supply negative terminal 4 foot of amplifier U5A is connected is followed by output ground G with the other end, the negative pole of electric capacity C14 of resistance R18 respectively, amplifies
Outfan 1 foot of device U5A connecting resistance R16 and one end of electric capacity C19 respectively, inverting input 2 foot of amplifier U5A connects electricity respectively
Resistance one end of R17, the other end of electric capacity C19, the other end of resistance R16 with R17 is connected and draws as lamp current display end Idis
Go out, another fixing end 1 foot of potentiometer RW2 respectively with one end, one end of resistance R7 and the control of a reference source U4 of electric capacity C10
Hold 1 foot to connect, the other end of electric capacity C10 respectively with negative electrode 3 foot of a reference source U4, the positive pole of Zener diode D5, voltage stabilizing two pole
The negative pole of the negative pole of pipe D14 and electric capacity C16 connects, the other end of resistance R7 respectively with anode 2 foot, voltage stabilizing two pole of a reference source U4
The positive pole of pipe D14 be connected is followed by output ground G, the negative pole of Zener diode D5 connect respectively the positive pole of electric capacity C16, resistance R6 another
The negative pole of photoelectrical coupler U2 input diode in end, AC/DC isolated variable circuit, another termination AC/DC isolation of resistance R5
Positive pole 1 foot of photoelectrical coupler U2 input diode in translation circuit.
The invention has the beneficial effects as follows: this mercury lamp high-voltage module power supply uses alternating current 220V input, is user-friendly to；Dynamic
State response is fast, and electromagnetic interference is little；Using auto-oscillation type frequency amplitude adjustment control surely, push-pull type drives structure, and output is relatively big, current stabilization essence
Degree height；There is regulation and the monitoring function of output lamp current, it is achieved the Linear Control of mercury lamp light intensity；Work, the one of build-up of luminance high pressure
Bodyization designs, and improves the reliability of power supply, extends mercury lamp service life；Compact overall structure, little with specific volume, long-term work
Good stability.
Accompanying drawing explanation
Fig. 1 is that the power circuit of the present invention connects block diagram；
Fig. 2 is the power circuit principle figure of the present invention；
Fig. 3 is the wire netting box schematic diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, a kind of high accuracy mercury lamp high-voltage module power supply special, including the electricity being arranged in wire netting box 1
Source circuit, power circuit include exchange input rectifying filter circuit, AC/DC isolated variable circuit, also include lamp current control and
Output circuit.
AC/DC isolated variable circuit controls with exchange input rectifying filter circuit, lamp current respectively and output circuit is connected,
Power circuit is provided with six exits and an outside regulator potentiometer.
Above-mentioned lamp current controls and in output circuit, different name end 1 foot of transformator TRF1 secondary coil Ls1 meets diode D4
Positive pole, the negative pole of diode D4 one end with positive pole, resistance R3 and R5 and R6 and the inductance L2 of electric capacity C7 respectively is connected, electric capacity
The negative pole of C7 is connected with Same Name of Ends 2 foot of transformator TRF1 secondary coil Ls1 and is followed by the feeder ear 1 of output ground G, control chip U3
Foot be connected with high side suspended power supply anode 8 foot of control chip U3 after respectively with the positive pole of electric capacity C8, the negative pole of diode D15,
The other end of resistance R3 connects and as in-line power end Vcc, the negative pole of electric capacity C8 be connected with the positive pole of diode D15 be followed by defeated
Fixing end 2 feet going out ground G, potentiometer RW1 are connected with adjustable side 3 foot, the agitator timing resistor input of control chip U3
Hold 2 feet to connect fixing end 2 foot of potentiometer RW1 by resistance R4, another fixing end 1 foot of potentiometer RW1 respectively with electric capacity C9
One end and control chip U3 oscillator timing capacitor input 3 foot connect, the other end of electric capacity C9 respectively with control chip
Earth terminal 4 foot of U3 is connected with high pressure suspending power supply negative terminal 6 foot of control chip U3 and is followed by output ground G, resistance R10 and diode
D13 is in parallel, and lowside gate driver output end 5 foot of control chip U3 connects the negative pole of diode D13, the positive pole of diode D13
It is connected with one end, the grid of MOS audion T2 of electric capacity C18 respectively, the other end of electric capacity C18 and the source electrode of MOS audion T2
Be connected be followed by the drain electrode of output ground G, MOS audion T2 respectively with negative pole, the transformator TRF2 primary coil Lp2-2 of luminous tube D7
Different name end g foot connect, one end of the positive pole connecting resistance R12 of luminous tube D7, resistance R8 is in parallel with diode D12, control chip
High side gate driver output end 7 foot of U3 connects the negative pole of diode D12, the positive pole of diode D12 respectively with MOS audion T1
Grid, electric capacity C17 one end connect, the other end of electric capacity C17 be connected with the source electrode of MOS audion T1 be followed by output G,
The drain electrode of MOS audion T1 connects with the other end of resistance R12, the Same Name of Ends e foot of transformator TRF2 primary coil Lp2-1 respectively
Connecing, the other end of inductance L2 is connected with the positive pole of electric capacity C11 and the different name end f foot of transformator TRF2 primary coil Lp2-1 respectively,
The negative pole of electric capacity C11 meets output ground G, and Same Name of Ends 3 foot of transformator TRF2 secondary coil Ls2 connects electric capacity C12's by inductance L3
One end is also drawn as one of outfan Voh, different name end 4 foot of transformator TRF2 secondary coil Ls2 another with electric capacity C12 respectively
One end, the positive pole of diode D8, the negative pole of diode D9 connect, and resistance R13 is in parallel with electric capacity C13, and diode D8's and D10 is negative
One end of difference connecting resistance R13 and R14 after being extremely connected, the positive pole of diode D10 is connected with the negative pole of diode D11 and as another
One output end vo l draws, and the positive pole of diode D11 with D9 is connected with the other end of resistance R13 and is followed by output ground G and draws,
One of potentiometer RW2 fixing end 2 feet are connected with adjustable side 3 foot, the other end of resistance R14 respectively with one end, the electricity of resistance R15
One fixing end 2 foot of position device RW2, the positive pole of electric capacity C14 connect, in-phase input end 3 foot of amplifier U5A connecting resistance respectively
One end of R18, the other end of resistance R15, power supply anode 8 foot of amplifier U5A connects in-line power end Vcc, the confession of amplifier U5A
Electricity negative terminal 4 foot is connected is followed by output ground G, the outfan of amplifier U5A with the other end, the negative pole of electric capacity C14 of resistance R18 respectively
1 foot respectively connecting resistance R16 and one end of electric capacity C19, one end of inverting input 2 foot of amplifier U5A connecting resistance R17 respectively,
The other end of electric capacity C19, the other end of resistance R16 with R17 is connected and draws as lamp current display end Idis, potentiometer RW2
Another fixing end 1 foot control end 1 foot with one end, one end of resistance R7 and a reference source U4 of electric capacity C10 respectively is connected, electric
Hold the other end of C10 respectively with negative electrode 3 foot of a reference source U4, the positive pole of Zener diode D5, the negative pole of Zener diode D14 and
The negative pole of electric capacity C16 connects, the other end of resistance R7 respectively with anode 2 foot, the positive pole phase of Zener diode D14 of a reference source U4
Even being followed by output ground G, the negative pole of Zener diode D5 connects the positive pole of electric capacity C16, the other end of resistance R6, AC/DC isolation respectively
The negative pole of photoelectrical coupler U2 input diode in translation circuit, light in another termination AC/DC isolated variable circuit of resistance R5
Positive pole 1 foot of electric coupler U2 input diode.
The model of control chip U3 is: IR21531, and the model of amplifier U5A is: LF442.
As it is shown on figure 3, power circuit has six exits and an outside regulator potentiometer to be positioned at outside wire netting box 1
Side, outside regulator potentiometer is lamp current adjustable potentiometer Iadj, and six exits press lamp current display end Idis, power supply friendship
Stream exports high-end Voh, capable AC output low side Vol, output ground G, Alternating Current Power Supply input zero line N, Alternating Current Power Supply input live wire L
Order arrangement.
Owing to using AC220V to power, therefore circuit safety is greatest problem.The isolation of photoelectrical coupler U2 in the design
The pressure DC2500V that should be greater than, need to consider, during transformator TRF1 coiling, the pressure problem that insulate；
For guaranteeing to export the precision of lamp current, have selected Low Drift Temperature, high-precision relevant components and parts；
According to the actual peak power output of mercury lamp, MOS audion T1 and T2 needs to consider heat dissipation problem；
Work, build-up of luminance high pressure integrated design, circuit is simple, and compact overall structure is little with specific volume.
Use wire netting box, and by wire netting box ground connection, have good electric screening action, improve the anti-interference energy of power supply
Power.
Operation principle
Input rectification circuit passes through wave filter L1, rectifier bridge D1 etc., filters through electric capacity C3, by Alternating Current Power Supply 220V rectifying and wave-filtering
After, obtain the DC voltage of about 300V.
300V DC voltage after rectification, as the direct current supply of AC/DC isolated variable circuit.List by TOP series
Sheet switch controller U1 and photoelectrical coupler U2, and high frequency transformer TRF1 etc., through feedback control, isolation and amplifier, for lamp electricity
Flow control circuits etc. provide regulatable DC voltage.
Lamp current controls and in output circuit, control chip U3 uses auto-oscillation type half-bridge driver IR21531, with MOS tri-
Together with pole pipe T1 with T2 and driving transformer TRF2, constitute push-pull type structure, control part employing and determine frequency modulation width mode, by height
After frequency power transformer TRF2 conversion, it is thus achieved that the exchange output high pressure of a fixed frequency.
When lamp current is output as zero, being output as starting voltage, running voltage is higher, makes mercury lamp light；When there being lamp current
During output, being output as maintaining voltage, voltage is relatively low, maintains mercury lamp work.Output lamp current after diode D8 ~ D11 rectification,
Resistance R13 obtains its sampled signal, by by light in a reference source U4, diode D5 and D14, AC/DC isolated variable circuit
The lamp current feedback circuit of the composition such as electric coupler U2, sets according to the lamp current of RW2, controls the size of lamp current, the most surely
The mercury lamp lamp current of fixed output.
It addition, use for the convenience of the user, the sampled voltage of lamp current is by the follower of the compositions such as chip U5A, it is thus achieved that lamp
Current monitoring voltage.
Claims (2)
1. a high accuracy mercury lamp high-voltage module power supply special, including the power circuit being arranged in wire netting box (1), described electricity
Source circuit includes exchanging input rectifying filter circuit, AC/DC isolated variable circuit, it is characterised in that: also include lamp current control
And output circuit, described AC/DC isolated variable circuit respectively with exchange input rectifying filter circuit, lamp current control and output electricity
Road connects, and power circuit is provided with six exits and an outside regulator potentiometer；
Physical circuit is connected as: described lamp current controls and in output circuit, the different name end 1 of transformator TRF1 secondary coil Ls1
Foot connects the positive pole of diode D4, the negative pole of diode D4 respectively with positive pole, resistance R3 and R5 and R6 and the inductance L2 of electric capacity C7
One end connects, and the negative pole of electric capacity C7 is connected with Same Name of Ends 2 foot of transformator TRF1 secondary coil Ls1 and is followed by output ground G, controls core
Feeder ear 1 foot of sheet U3 be connected with high side suspended power supply anode 8 foot of control chip U3 after respectively with the positive pole of electric capacity C8, two
The negative pole of pole pipe D15, the other end of resistance R3 connect and as in-line power end Vcc, the negative pole of electric capacity C8 is with diode D15's
Connected fixing end 2 feet being followed by output ground G, potentiometer RW1 of positive pole are connected with adjustable side 3 foot, the vibration of control chip U3
Device timing resistor input 2 foot connects fixing end 2 foot of potentiometer RW1 by resistance R4, another fixing end 1 of potentiometer RW1
Foot is connected with one end of electric capacity C9 and oscillator timing capacitor input 3 foot of control chip U3 respectively, the other end of electric capacity C9
It is connected with earth terminal 4 foot of control chip U3 and high pressure suspending power supply negative terminal 6 foot of control chip U3 respectively and is followed by output ground G,
Resistance R10 is in parallel with diode D13, and lowside gate driver output end 5 foot of control chip U3 connects the negative pole of diode D13,
The positive pole of diode D13 is connected with one end, the grid of MOS audion T2 of electric capacity C18 respectively, the other end of electric capacity C18 and MOS
The source electrode of audion T2 be connected be followed by the drain electrode of output ground G, MOS audion T2 respectively with negative pole, the transformator of luminous tube D7
The different name end g foot of TRF2 primary coil Lp2-2 connects, one end of the positive pole connecting resistance R12 of luminous tube D7, resistance R8 and diode
D12 is in parallel, and high side gate driver output end 7 foot of control chip U3 connects the negative pole of diode D12, the positive pole of diode D12
It is connected with grid, one end of electric capacity C17 of MOS audion T1 respectively, the other end of electric capacity C17 and the source electrode of MOS audion T1
Be connected be followed by the drain electrode of output ground G, MOS audion T1 respectively with the other end, the transformator TRF2 primary coil Lp2-of resistance R12
The Same Name of Ends e foot of 1 connects, the other end of inductance L2 respectively with the positive pole of electric capacity C11 and transformator TRF2 primary coil Lp2-1
Different name end f foot connects, and the negative pole of electric capacity C11 meets output ground G, and Same Name of Ends 3 foot of transformator TRF2 secondary coil Ls2 passes through inductance
L3 connects one end of electric capacity C12 and draws as one of outfan Voh, and different name end 4 foot of transformator TRF2 secondary coil Ls2 is respectively
Being connected with the other end of electric capacity C12, the positive pole of diode D8, the negative pole of diode D9, resistance R13 is in parallel with electric capacity C13, two poles
The negative pole of pipe D8 with D10 distinguishes one end of connecting resistance R13 and R14 after being connected, the positive pole of diode D10 is negative with diode D11's
Extremely being connected and draw as another output end vo l, the positive pole of diode D11 with D9 is connected with the other end of resistance R13 and is followed by
Output ground G also draws, and of potentiometer RW2 fixing end 2 feet are connected with adjustable side 3 foot, the other end of resistance R14 respectively with electricity
Resistance one end of R15, fixing end 2 feet of potentiometer RW2, the positive pole of electric capacity C14 connect, the in-phase input end 3 of amplifier U5A
Foot one end of connecting resistance R18, the other end of resistance R15 respectively, power supply anode 8 foot of amplifier U5A meets in-line power end Vcc,
Power supply negative terminal 4 foot of amplifier U5A is connected is followed by output ground G with the other end, the negative pole of electric capacity C14 of resistance R18 respectively, amplifies
Outfan 1 foot of device U5A connecting resistance R16 and one end of electric capacity C19 respectively, inverting input 2 foot of amplifier U5A connects electricity respectively
Resistance one end of R17, the other end of electric capacity C19, the other end of resistance R16 with R17 is connected and draws as lamp current display end Idis
Go out, another fixing end 1 foot of potentiometer RW2 respectively with one end, one end of resistance R7 and the control of a reference source U4 of electric capacity C10
Hold 1 foot to connect, the other end of electric capacity C10 respectively with negative electrode 3 foot of a reference source U4, the positive pole of Zener diode D5, voltage stabilizing two pole
The negative pole of the negative pole of pipe D14 and electric capacity C16 connects, the other end of resistance R7 respectively with anode 2 foot, voltage stabilizing two pole of a reference source U4
The positive pole of pipe D14 be connected is followed by output ground G, the negative pole of Zener diode D5 connect respectively the positive pole of electric capacity C16, resistance R6 another
The negative pole of photoelectrical coupler U2 input diode in end, AC/DC isolated variable circuit, another termination AC/DC isolation of resistance R5
Positive pole 1 foot of photoelectrical coupler U2 input diode in translation circuit.
A kind of high accuracy mercury lamp high-voltage module power supply special the most according to claim 1, is further characterized in that: described power supply
Circuit has six exits and an outside regulator potentiometer to be positioned at the side outside wire netting box 1, and outside regulator potentiometer is lamp
Current adjustment potentiometer Iadj, six exits press lamp current display end Idis, capable AC output high-end Voh, capable AC
Output low side Vol, output ground G, Alternating Current Power Supply input zero line N, Alternating Current Power Supply input live wire L order arrangement.
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| CN201610667232.1A CN106061084B (en) | 2016-08-15 | 2016-08-15 | A kind of high accuracy mercury lamp high-voltage module power supply special |
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| CN201610667232.1A CN106061084B (en) | 2016-08-15 | 2016-08-15 | A kind of high accuracy mercury lamp high-voltage module power supply special |
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| CN106061084B CN106061084B (en) | 2018-04-20 |
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| CN110460248A (en) * | 2019-08-23 | 2019-11-15 | 四川甘华电源科技有限公司 | A kind of module power supply circuit for realizing high-voltage isolating |
| CN112055439A (en) * | 2020-09-14 | 2020-12-08 | 孝感瑞奕照明有限责任公司 | Intelligent high-efficiency high-power high-voltage gas lamp power supply management device |
| CN112821782A (en) * | 2021-03-10 | 2021-05-18 | 深圳前海云充科技有限公司 | Wide voltage AC input power module |
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| CN107607900A (en) * | 2017-10-31 | 2018-01-19 | 国网重庆市电力公司璧山供电分公司 | A kind of electroscope calibration equipment |
| CN107607900B (en) * | 2017-10-31 | 2024-02-13 | 国网重庆市电力公司璧山供电分公司 | Electroscope verifying attachment |
| CN110460248A (en) * | 2019-08-23 | 2019-11-15 | 四川甘华电源科技有限公司 | A kind of module power supply circuit for realizing high-voltage isolating |
| CN112055439A (en) * | 2020-09-14 | 2020-12-08 | 孝感瑞奕照明有限责任公司 | Intelligent high-efficiency high-power high-voltage gas lamp power supply management device |
| CN112055439B (en) * | 2020-09-14 | 2022-04-05 | 孝感瑞奕照明有限责任公司 | Intelligent high-efficiency high-power high-voltage gas lamp power supply management device |
| CN112821782A (en) * | 2021-03-10 | 2021-05-18 | 深圳前海云充科技有限公司 | Wide voltage AC input power module |
| CN112821782B (en) * | 2021-03-10 | 2023-04-25 | 深圳前海云充科技有限公司 | Wide-voltage AC input power supply module |
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|---|---|
| CN106061084B (en) | 2018-04-20 |
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