CN205946297U - Special high pressure module power of high accuracy mercury lamp - Google Patents
Special high pressure module power of high accuracy mercury lamp Download PDFInfo
- Publication number
- CN205946297U CN205946297U CN201620879570.7U CN201620879570U CN205946297U CN 205946297 U CN205946297 U CN 205946297U CN 201620879570 U CN201620879570 U CN 201620879570U CN 205946297 U CN205946297 U CN 205946297U
- Authority
- CN
- China
- Prior art keywords
- foot
- electric capacity
- resistance
- diode
- positive pole
- 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- Withdrawn - After Issue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
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a special high pressure module power of high accuracy mercury lamp, including installing the power supply circuit in the metal mesh box, power supply circuit includes that NULL rectification filter circuit, ACDC keep apart the transfer circuit, still includes lamp current control and output circuit, and ACDC keeps apart the transfer circuit and is connected with NULL rectification filter circuit, lamp current control and output circuit respectively. The effect is: this mercury lamp high pressure module power adopts the alternating current 220V input, and convenience of customers uses, dynamic response is fast, and electromagnetic interference is little, adopt natural vibration formula frequency modulating control surely, push -pull type drive structure, output is great, and precision of steady current is high, have the regulation and the monitor function that export the lamp current, realize the linear control of mercury lamp light intensity, work, the highly compressed integrated design of build -up of luminance have improved the reliability of power, extension mercury lamp life, overall structure is compact, and is small on year -on -year basis, and long -term job stabilization nature is good.
Description
Technical field
This utility model is related to a kind of be widely used in the high-precision of the fields such as illumination, medical science, fluorescence analysiss, semiconductor lithography
Degree mercury lamp high-voltage module power supply special.
Background technology
Existing mercury lamp power supply product major part adopts direct current supply, and power supply power consumption is high, volume is larger it has not been convenient to user makes
With.Starting voltage and running voltage are usually independent control, and circuit is more complicated, and electromagnetic interference is larger, dynamic response slow, output
Lamp current precision is not high, and lamp current is non-adjustable.With the continuous expansion of mercury lamp application, the performance of mercury lamp power supply is proposed
Requirements at the higher level, overall dimensions are little, and power consumption is low, and precision of steady current is high and adjustable, and Alternating Current Power Supply input etc. becomes becoming of future development
Gesture.
Content of the invention
In view of the deficiencies in the prior art, this utility model provides that a kind of circuit is simple, dynamic response is fast, alternating voltage is defeated
Enter, build-up of luminance working voltage integrated design, lamp current adjustable high accuracy mercury lamp high-voltage module power supply special.
This utility model for achieving the above object, is adopted the technical scheme that:A kind of high accuracy mercury lamp special high-pressure mould
Block power supply, including the power circuit being arranged in wire netting box, described power circuit include exchange 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 circuit is connected, power circuit be provided with six exits with
One outside regulator potentiometer;
Physical circuit is connected as:In described lamp current control and output circuit, the different name of transformator TRF1 secondary coil Ls1
1 foot is held to meet the positive pole of diode D4, negative pole positive pole, resistance R3 and R5 and R6 and inductance L2 with electric capacity C7 respectively of diode D4
One end connect, the negative pole of electric capacity C7 be connected with Same Name of Ends 2 foot of transformator TRF1 secondary coil Ls1 be followed by output ground G, control
Feeder ear 1 foot of chip 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,
The negative pole of diode D15, the other end of resistance R3 connect and as in-line power end Vcc, the negative pole of electric capacity C8 and diode D15
Positive pole be connected and be followed by output ground G, fixing end 2 foot of potentiometer RW1 is connected with adjustable side 3 foot, and control chip U3 shakes
Swing fixing end 2 foot that device timing resistor input 2 foot meets potentiometer RW1 by resistance R4, another fixing end of potentiometer RW1
1 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 be 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 of electric capacity C18, the grid of MOS audion T2 respectively, the other end of electric capacity C18 and MOS
The source electrode of audion T2 is connected and is followed by output ground G, drain electrode negative pole, the transformator with luminous tube D7 respectively of MOS audion T2
The different name end g foot of TRF2 primary coil Lp2-2 connects, one end, resistance R8 and the diode of the positive pole connecting resistance R12 of luminous tube D7
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 the grid of MOS audion T1, one end of electric capacity C17 respectively, the source electrode of the other end of electric capacity C17 and MOS audion T1
It is connected and be followed by output ground G, the drain electrode other end, the transformator TRF2 primary coil Lp2- with resistance R12 respectively of MOS audion T1
1 Same Name of Ends e foot 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
It is connected with the negative pole of the other end of electric capacity C12, the positive pole of diode D8, 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 it is connected and draws 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 simultaneously draws, and fixing end 2 foot of potentiometer RW2 is connected with adjustable side 3 foot, the other end of resistance R14 respectively with electricity
One end of resistance R15, fixing end 2 foot 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 with the other end of resistance R18, the negative pole of electric capacity C14 respectively and is followed by output ground G, amplifies
One end of the outfan 1 foot difference connecting resistance R16 and electric capacity C19 of device U5A, inverting input 2 foot of amplifier U5A connects electricity respectively
One end of resistance 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 control with one end, one end of resistance R7 and a reference source U4 of electric capacity C10 respectively of potentiometer RW2
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, other end anode 2 foot, voltage stabilizing two pole with a reference source U4 respectively of resistance R7
The positive pole of pipe D14 is connected and 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 beneficial effects of the utility model are:This mercury lamp high-voltage module power supply adopts alternating current 220V to input, and facilitates user to make
With;Dynamic response is fast, and electromagnetic interference is little;Frequency amplitude adjustment control, push-pull type driving structure are determined using auto-oscillation type, output is larger,
Precision of steady current is high;There is regulation and the monitoring function of output lamp current, realize the Linear Control of mercury lamp light intensity;Work, build-up of luminance are high
The integrated design of pressure, improves the reliability of power supply, extends mercury lamp service life;Compact overall structure, small volume on year-on-year basis is long
Phase good operating stability.
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;
Fig. 3 is wire netting box schematic diagram of the present utility model.
Specific embodiment
As shown in Figure 1, 2, high accuracy mercury lamp high-voltage module power supply special, including the power supply electricity being arranged in wire netting box 1
Road, power circuit includes exchanging input rectifying filter circuit, AC/DC isolated variable circuit, also includes 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.
In above-mentioned lamp current control and output circuit, different name end 1 foot of transformator TRF1 secondary coil Ls1 meets diode D4
Positive pole, the negative pole of diode D4 is connected with one end of the positive pole, resistance R3 and R5 and R6 and inductance L2 of electric capacity C7 respectively, 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 output ground G, the feeder ear 1 of 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
Go out ground G, fixing end 2 foot of potentiometer RW1 is 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 oscillator timing capacitor input 3 foot of control chip U3 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 of electric capacity C18, the grid of MOS audion T2 respectively, the source electrode of the other end of electric capacity C18 and MOS audion T2
It is connected and be followed by output ground G, drain electrode negative pole, the transformator TRF2 primary coil Lp2-2 with luminous tube D7 respectively of MOS audion T2
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 is connected with the other end of resistance R12, the Same Name of Ends e foot of transformator TRF2 primary coil Lp2-1 respectively
Connect, 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 simultaneously drawn as one of outfan Voh, and different name end 4 foot of transformator TRF2 secondary coil Ls2 is 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 fixing end 2 foot of potentiometer RW2 is connected with adjustable side 3 foot, other end one end, the electricity with resistance R15 respectively of resistance R14
One fixing end 2 foot of position device RW2, the positive pole of electric capacity C14 connect, the in-phase input end 3 foot connecting resistance respectively of amplifier U5A
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
Electric negative terminal 4 foot is connected with the other end of resistance R18, the negative pole of electric capacity C14 respectively and is followed by output ground G, the outfan of amplifier U5A
One end of 1 foot difference connecting resistance R16 and electric capacity C19, one end of inverting input 2 foot difference connecting resistance R17 of amplifier U5A,
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 be connected with control end 1 foot of one end, one end of resistance R7 and a reference source U4 of electric capacity C10 respectively, electricity
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 the resistance R7 positive pole phase with anode 2 foot of a reference source U4, Zener diode D14 respectively
Even it is 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:IR21531, the model of amplifier U5A:LF442.
As shown in figure 3, power circuit has six exits and an outside regulator potentiometer to be located at outside wire netting box 1 one
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 arranges.
Due to being powered using AC220V, therefore circuit safety is greatest problem.The isolation of photoelectrical coupler U2 in the design
Pressure should be greater than DC2500V, 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 correlation 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, compact overall structure, small volume on year-on-year basis.
Using wire netting box, and wire netting box is grounded, has 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., through electric capacity C3 filtering, Alternating Current Power Supply 220V rectification is filtered
After ripple, obtain 300V about DC voltage.
300V DC voltage after rectification, as the direct current supply of AC/DC isolated variable circuit.List by TOP series
Piece switch controller U1 and photoelectrical coupler U2, and high frequency transformer TRF1 etc., through feedback control, isolation and amplifier, it is lamp electricity
Flow control circuit etc. provides regulatable DC voltage.
In lamp current control and output circuit, control chip U3 adopts auto-oscillation type half-bridge driver IR21531, with MOS tri-
Pole pipe T1, together with T2 and driving transformer TRF2, constitutes push-pull type structure, and control section adopts determines frequency modulation width mode, by height
After frequency power transformer TRF2 conversion, obtain the exchange output high pressure of a fixed frequency.
When lamp current is output as zero, it is output as starting voltage, running voltage is higher, so that mercury lamp is lighted;When there being lamp current
During output, it is output as maintenance voltage, voltage is relatively low, maintain mercury lamp work.Output lamp current after diode D8 ~ D11 rectification,
Its sampled signal is obtained on resistance R13, by by light in a reference source U4, diode D5 and D14, AC/DC isolated variable circuit
The lamp current feedback circuit of the compositions such as electric coupler U2, the lamp current according to RW2 sets, and controls the size of lamp current, finally surely
The mercury lamp lamp current of fixed output.
In addition, using for the convenience of the user, the sampled voltage of lamp current passes through the follower of the compositions such as chip U5A, obtains lamp
Current monitoring voltage.
Claims (2)
1. a kind of high accuracy mercury lamp high-voltage module power supply special, including being arranged on wire netting box(1)In power circuit, described electricity
Source circuit include exchange 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:In described lamp current control and 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 the positive pole of electric capacity C7, resistance R3 and R5 and R6 and inductance L2
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 piece 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
Positive pole is connected and is followed by output ground G, and fixing end 2 foot of potentiometer RW1 is 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, another fixing end 1 of potentiometer RW1 by resistance R4
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 be 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 of electric capacity C18, the grid of MOS audion T2 respectively, the other end of electric capacity C18 and MOS
The source electrode of audion T2 is connected and is followed by output ground G, drain electrode negative pole, the transformator with luminous tube D7 respectively of MOS audion T2
The different name end g foot of TRF2 primary coil Lp2-2 connects, one end, resistance R8 and the diode of the positive pole connecting resistance R12 of luminous tube D7
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 the grid of MOS audion T1, one end of electric capacity C17 respectively, the source electrode of the other end of electric capacity C17 and MOS audion T1
It is connected and be followed by output ground G, the drain electrode other end, the transformator TRF2 primary coil Lp2- with resistance R12 respectively of MOS audion T1
1 Same Name of Ends e foot 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
It is connected with the negative pole of the other end of electric capacity C12, the positive pole of diode D8, 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 it is connected and draws 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 simultaneously draws, and fixing end 2 foot of potentiometer RW2 is connected with adjustable side 3 foot, the other end of resistance R14 respectively with electricity
One end of resistance R15, fixing end 2 foot 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 with the other end of resistance R18, the negative pole of electric capacity C14 respectively and is followed by output ground G, amplifies
One end of the outfan 1 foot difference connecting resistance R16 and electric capacity C19 of device U5A, inverting input 2 foot of amplifier U5A connects electricity respectively
One end of resistance 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 control with one end, one end of resistance R7 and a reference source U4 of electric capacity C10 respectively of potentiometer RW2
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, other end anode 2 foot, voltage stabilizing two pole with a reference source U4 respectively of resistance R7
The positive pole of pipe D14 is connected and 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.
2. high accuracy mercury lamp high-voltage module power supply special according to claim 1, is further characterized in that:Described power circuit
There is the side that six exits and an outside regulator potentiometer are located at outside wire netting box 1, outside regulator potentiometer is lamp current
Adjustable potentiometer Iadj, six exits press lamp current display end Idis, the capable AC high-end Voh of output, 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 arrange.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620879570.7U CN205946297U (en) | 2016-08-15 | 2016-08-15 | Special high pressure module power of high accuracy mercury lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620879570.7U CN205946297U (en) | 2016-08-15 | 2016-08-15 | Special high pressure module power of high accuracy mercury lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205946297U true CN205946297U (en) | 2017-02-08 |
Family
ID=57921294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620879570.7U Withdrawn - After Issue CN205946297U (en) | 2016-08-15 | 2016-08-15 | Special high pressure module power of high accuracy mercury lamp |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205946297U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106061084A (en) * | 2016-08-15 | 2016-10-26 | 东文高压电源(天津)股份有限公司 | High-precision dedicated high-voltage module power supply for mercury lamp |
CN111352364A (en) * | 2019-11-08 | 2020-06-30 | 凯里云瀚智慧城市运营管理有限公司 | Support remote control's sensor circuit |
-
2016
- 2016-08-15 CN CN201620879570.7U patent/CN205946297U/en not_active Withdrawn - After Issue
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106061084A (en) * | 2016-08-15 | 2016-10-26 | 东文高压电源(天津)股份有限公司 | High-precision dedicated high-voltage module power supply for mercury lamp |
CN111352364A (en) * | 2019-11-08 | 2020-06-30 | 凯里云瀚智慧城市运营管理有限公司 | Support remote control's sensor circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106061084B (en) | A kind of high accuracy mercury lamp high-voltage module power supply special | |
CN105491713A (en) | High-power LED street lamp drive circuit | |
CN205946297U (en) | Special high pressure module power of high accuracy mercury lamp | |
CN208300070U (en) | The high-power LED drive circuit of constant current is realized based on frequency modulation ballast | |
CN105578641B (en) | A kind of LED lamp | |
CN103220856B (en) | Self-adapting light emitting diode (LED) driving power circuit | |
CN2384366Y (en) | High-power high-frequency switch power having good heat radiation and screen functions | |
CN201319691Y (en) | Ballast for electricity-saving lamp | |
CN201805355U (en) | Constant voltage power supply circuit with PFC (power factor corrector) and LED street lamp | |
CN108521694B (en) | LED half-bridge circuit with feedback variable-frequency constant-current drive | |
CN201467523U (en) | Power supply driving circuit of LED lamp | |
CN201708989U (en) | LED floodlight driver | |
CN203151849U (en) | Energy-saving electronic ballast and light fixture | |
CN202679767U (en) | Electronic ballast for electrodeless lamp | |
CN208638756U (en) | A kind of LED constant-voltage driver of Width funtion input | |
CN202135357U (en) | LED street lamp driving power supply | |
CN202005030U (en) | Novel light-emitting diode (LED) lighting driving power supply | |
CN205986669U (en) | High frequency and high voltage alternating current power supply circuit with adjustable frequency, amplitude, power | |
CN111901928A (en) | Subway LED lamp driving power supply capable of correcting power factor and power adjusting method | |
CN105451391B (en) | A kind of LED drive circuit and light fixture | |
CN204669240U (en) | Integrated AC/DC tri-road out-put supply module | |
CN203279320U (en) | Light-adjustable electrodeless lamp ballast | |
CN203251469U (en) | Light emitting diode driving circuit | |
CN206498567U (en) | A kind of Low emissivity LED drive power | |
CN208849676U (en) | A kind of Switching Power Supply of 380V voltage class |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20180420 |
|
AV01 | Patent right actively abandoned |