CN108811284A - A kind of HID lamp electric stabilizer improving efficiency - Google Patents
A kind of HID lamp electric stabilizer improving efficiency Download PDFInfo
- Publication number
- CN108811284A CN108811284A CN201810625781.1A CN201810625781A CN108811284A CN 108811284 A CN108811284 A CN 108811284A CN 201810625781 A CN201810625781 A CN 201810625781A CN 108811284 A CN108811284 A CN 108811284A
- Authority
- CN
- China
- Prior art keywords
- semiconductor
- oxide
- metal
- diode
- inductance
- 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.)
- Pending
Links
- 239000003381 stabilizer Substances 0.000 title claims abstract description 24
- 239000004065 semiconductor Substances 0.000 claims abstract description 83
- 230000005611 electricity Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000009877 rendering Methods 0.000 abstract description 3
- 230000001939 inductive effect Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H05B41/2881—Load circuits; Control thereof
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
A kind of HID lamp electric stabilizer improving efficiency, including AC power VS, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, diode D1, diode D2, diode D3, diode D4, capacitance Cdc, capacitance Cfi, capacitance Cfo, inductance Lb, inductance Lfi and inductance Lfo, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4, at it, respectively internal reverse parallel connection has diode respectively.The present invention by circuit structure by being integrated into single-stage framework, cost is not only greatly reduced and improves overall conversion efficiency, and have work(because of modified function simultaneously, the driven under square wave current high-intensity gas discharge lamp (HID) of mains frequency can be exported, it is effectively prevent the generation of audio resonance, and high-intensity gas discharge lamp (HID) is made to have many advantages, such as high color rendering, high-luminous-efficiency.
Description
Technical field
The present invention relates to a kind of HID lamp stabilizers, refer in particular to a kind of HID lamp electronic stabilization improving efficiency
Device.
Background technology
Lighting source is element indispensable in human lives, and as population constantly increases, people are for illumination light
The demand in source also increasingly increases.And high-intensity gas discharge lamp (HID) has brightness height, luminous efficiency height, does not lure worm, service life
The good characteristics of luminescence such as long, thus with the value of research.
High-intensity gas discharge lamp (HID) also extends because of the physical characteristic of itself although possessing many advantages：
The shortcomings of the problem of higher startup voltage, the transient overlong time of cold start-up, thermal starting difficulty and audio resonance, make
Obtaining the design of the electric stabilizer of high-intensity gas discharge lamp (HID) seems more difficult and complicated.
Chinese invention patent（Application number：201720705580.3）Disclose a kind of novel half-bridge driven for HID lamp
Circuit comprising the drain electrode of metal-oxide-semiconductor Q11, resistance R21, transformer T3 and transformer T4, the metal-oxide-semiconductor Q11 connect resistance R21
Connect diode D6's with the other end of power supply VCC, the connection connection of secondary windings one end the resistance R16, resistance R16 of transformer T3
The base stage of anode, resistance R17 and triode Q10, the emitter of the cathode connected to the transistor Q10 of diode D6 and metal-oxide-semiconductor Q11's
Grid.Although the above circuit structure can limit the pulse amplitude of driving output in a certain range, ensure metal-oxide-semiconductor and driving
The safety of circuit improves the reliability of circuit, but there is also have following shortcoming in actual use：Circuit knot
Structure is complex, hardware cost is higher and specific consumption is higher, and can there are problems that because of audio resonance in actually using.
Invention content
The present invention provides a kind of HID lamp electric stabilizer improving efficiency, and main purpose is to overcome existing
There is the defects of circuit structure existing for HID lamp driving circuit is complex, hardware cost is higher and specific consumption is higher in technology.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of HID lamp electric stabilizer improving efficiency, including AC power VS, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, MOS
Pipe Q3, metal-oxide-semiconductor Q4, diode D1, diode D2, diode D3, diode D4, capacitance Cdc, capacitance Cfi, capacitance Cfo, inductance
Lb, inductance Lfi and inductance Lfo, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4 are respectively internal at it respectively
Reverse parallel connection has diode, one end of the inductance Lfi to be electrically connected with the anode of the AC power VS, and the one of the inductance Lb
End and one end of capacitance Cfi are parallel to the other end of inductance Lfi, the other end of the inductance Lb and the cathode of diode D4
It is parallel to the anode of the diode D1, the drain electrode of the cathode, metal-oxide-semiconductor Q3 of the diode D1, the source electrode and electricity of metal-oxide-semiconductor Q2
The side for holding Cfo is parallel to the side of a HID lamp, and the other side of the capacitance Cfo and the side of inductance Lfo are parallel to described
The other side of HID lamp, the drain electrode of cathode, metal-oxide-semiconductor Q4 of diode D2 and the source electrode of metal-oxide-semiconductor Q1 are parallel to the inductance jointly
The other end of the other side of Lfo, the anode of diode D2, the cathode of diode D3 and capacitance Cfi is parallel to alternating current jointly
The cathode of source VS, the anode of diode D3, the anode of diode D4, the source electrode of metal-oxide-semiconductor Q4, metal-oxide-semiconductor Q3 source electrode and capacitance
One end earth of Cdc, the drain electrode of metal-oxide-semiconductor Q1 and the drain electrode of metal-oxide-semiconductor Q2 are parallel to the other end of capacitance Cdc jointly.
Further, the capacitance Cdc is straight line chain capacitance.
Further, the parameter of the capacitance Cdc is 330 μ F.
Further, the parameter of the capacitance Cfi is 0.22 μ F.
Further, the parameter of the capacitance Cfo is 22nF.
Further, the parameter of the inductance Lb is 0.7mH.
Further, the parameter of the inductance Lfi is 5mH.
Further, the parameter of the inductance Lfo is 150 μ H.
Compared to the prior art, the advantageous effect that the present invention generates is:
The three-level electric stabilizer framework that the present invention drives traditional low-frequency square wave, is integrated into single-stage framework, is not only greatly reduced
Cost and raising overall conversion efficiency, and have work(because of modified function simultaneously, the square wave current that can export mains frequency drives
Dynamic high-intensity gas discharge lamp (HID) effectively prevent the generation of audio resonance, and makes high-intensity gas discharge lamp (HID)
Have many advantages, such as high color rendering, high-luminous-efficiency.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the circuit diagram of the present invention.
Control signal when Fig. 2 is present invention work and theoretical waveforms.
Fig. 3 is circuit fundamental diagram of the present invention under each operating mode.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Referring to FIG. 1, FIG. 2 and FIG. 3.A kind of HID lamp electric stabilizer improving efficiency, including AC power
VS, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, diode D1, diode D2, diode D3, diode D4, capacitance
Cdc, capacitance Cfi, capacitance Cfo, inductance Lb, inductance Lfi and inductance Lfo, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 and
At it, respectively internal reverse parallel connection has diode to metal-oxide-semiconductor Q4 respectively, and one end of the inductance Lfi and the AC power VS are just
Pole electrical connection, one end of the inductance Lb and one end of capacitance Cfi are parallel to the other end of inductance Lfi, the inductance Lb's
The cathode of the other end and diode D4 are parallel to the anode of the diode D1, the cathode of the diode D1, metal-oxide-semiconductor Q3
Drain electrode, the source electrode of metal-oxide-semiconductor Q2 and capacitance Cfo side be parallel to the side of a HID lamp, the other side of the capacitance Cfo with
And the side of inductance Lfo is parallel to the other side of the HID lamp, the drain electrode of the cathode, metal-oxide-semiconductor Q4 of diode D2 and metal-oxide-semiconductor
The source electrode of Q1 is parallel to the other side of the inductance Lfo, the anode of diode D2, the cathode and capacitance of diode D3 jointly
The other end of Cfi is parallel to the cathode of AC power VS jointly, the anode of diode D3, the anode of diode D4, metal-oxide-semiconductor Q4
One end earth of source electrode, the source electrode of metal-oxide-semiconductor Q3 and capacitance Cdc, the drain electrode of metal-oxide-semiconductor Q1 and the drain electrode of metal-oxide-semiconductor Q2 are total
With the other end for being parallel to capacitance Cdc.
Electric stabilizer circuit of the present invention, by bridge rectifier, full-bridge current device and boost type active power factor correcting circuit
It is formed, wherein capacitance Cdc is direct-current chain capacitance, and switching power devices are respectively by metal-oxide-semiconductor Q1~Q4 and its internal reverse parallel connection
Diode formed；Boost converter by transverter metal-oxide-semiconductor Q3 and boost inductance Lb formed, by adjusting
The switching frequency of metal-oxide-semiconductor Q1~Q4 restrains the purpose that work(rule factor correction and modulation input power is reached to adjust input current；
The low-pass filter Lfo and Cfo of load end are then the high-frequency harmonics for eliminating load end, supply high-intensity gas discharge lamp
(HID) energy of low-frequency square-wave needed for.In addition, the Miniature Low Pass Filter Lfi and Cfi of input terminal, then be for eliminating input
The high-frequency harmonic of electric current.Inductive current in design boost type active power factor correcting circuit can be operated in continuous current mode
(CCM) or discontinuous current mode (DCM), the switch cost of its switch module of discontinuous current mode is smaller, control circuit compared with
Simply, it is suitable for low-power circuit；And continuous current mode can then reduce the conduction loss and current stress of switch module, only
Its control circuit is more complex, is suitable for high-power circuit.Circuit is operated in discontinuous current mode by the present invention so that all
Metal-oxide-semiconductor Q1-Q4 can reach zero voltage switching conducting, while by the turn-on time of modulation metal-oxide-semiconductor Q1-Q4, with control circuit
Input power.Active power factor correcting circuit can be by harmonics restraint to there's almost no, and work(is because close to 1, control is electric
Road driving metal-oxide-semiconductor Q1-Q4 makees high frequency switching, and detects and output and input signal, needed for the load in response to different capacity.Control
The switching time of metal-oxide-semiconductor Q1-Q4 can accurately control the waveform and size of input current, become the pulsating waveform of high frequency,
Wave packet or average value can follow the waveform of AC supply voltage, and keep same phase at any time, reach work(because of amendment and voltage stabilizing
Function.The converter circuit that afterbody is made of full-bridge is filtered the high frequency square wave electric current of exchange via low-pass filter
Except low-frequency square-wave current is added to high-intensity gas discharge lamp (HID) by radio-frequency component.
Fig. 2 is the theoretical waveform of each component of circuit, and according to the action state of metal-oxide-semiconductor Q1-Q4, this circuit is in low frequency
Eight operation modes can be divided into period, wherein pattern 1~4, which is alternating current, is applicable in when being positive value, and pattern 5~8 is that alternating current is negative
It is applicable in when value, analysis mode is identical as pattern 1~4, wherein the operating mode in 1~4 stage is as shown in Fig. 3.
For circuit before entering operating mode 1, inductive current iLb has been reduced to zero.After operating mode 1 starts, lock grade news
Number Vgs1 and Vgs3 triggers metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q3 and turns it on respectively, and the input voltage after rectification is via metal-oxide-semiconductor Q3
Connection and directly across on inductance Lb, therefore inductive current iLb is linearly increased.High-intensity gas discharge lamp (HID) both end voltage
Vo connect with metal-oxide-semiconductor Q3 via metal-oxide-semiconductor Q1 and is equal to VB, therefore the electric current on metal-oxide-semiconductor Q3 is that both io and iLb are added institute
?.When metal-oxide-semiconductor Q1 ends, circuit enters operating mode 2 or operating mode 3.
For circuit after the beginning of operating mode 2, lock grade signal Vgs3 and Vgs4 triggers metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4 respectively
It turns it on, inductive current iLb is still linearly increased.When metal-oxide-semiconductor Q4 ends, circuit re-enter operating mode 1.Though
It can be directly entered operating mode 3 after right operating mode 2, but this flow can make the surging of metal-oxide-semiconductor excessive, be easy damage
Metal-oxide-semiconductor component；Operating mode 1 separately is entered back into, energy can be made to be provided to load again, for exporting the design of low-pass filter
It is easier to.
Operating mode 3 is similar to operating mode 2, only makes lock grade signal Vgs1 and Vgs2 into and triggers metal-oxide-semiconductor Q1 respectively
It is turned it on metal-oxide-semiconductor Q2, inductive current iLb is still linearly reduced, and by energy storage to storage capacitor.Work as inductive current
When iLb is reduced to zero, circuit enters operating mode 4.
The purposes of operating mode 4 is only to ensure that into before next pattern 1, inductive current iLb has been reduced to zero, makes boost type
Inductive current in active power factor correcting circuit can be operated in discontinuous current mode, until metal-oxide-semiconductor Q2 cut-offs, metal-oxide-semiconductor Q3
When conducting, operating mode 1 is turned again to.
The present invention with 70W high-intensity gas discharge lamps (HID) for experimental subjects, go forward side by side by actual fabrication electric stabilizer circuit
Row measures, and after tested, the circuit parameter of the stabilizer is as shown in the table.
The single-stage electricity of high-intensity gas discharge lamp (HID) is completed in the converter circuit that the present invention is driven with low-frequency square-wave, research and development
Minor stabilizer embryo is verified by experiments this electric stabilizer circuit and has the following advantages that:
1, full-bridge rectifier is integrated using single-stage framework, boost type work(is because of corrector, full bridge high frequency transverter and low-pass filtering
Stabilizer cost and volume is greatly reduced in device, and control circuit is simple and stablizes.
2, the three-level electric stabilizer framework that the present invention drives traditional low-frequency square wave, is integrated into single-stage framework, not only greatly
Width reduces cost and improves overall conversion efficiency, and has work(because of modified function simultaneously, can export the square wave of mains frequency
Electric current drives high-intensity gas discharge lamp (HID), effectively prevent the generation of audio resonance, and make high-intensity gas discharge lamp
(HID) have many advantages, such as high color rendering, high-luminous-efficiency.
Principle and implementation of the present invention are described for specific case used herein, and above example is said
The bright method and its core concept for being merely used to help understand the present invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (8)
1. a kind of HID lamp electric stabilizer improving efficiency, it is characterised in that：Including AC power VS, metal-oxide-semiconductor
Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, metal-oxide-semiconductor Q4, diode D1, diode D2, diode D3, diode D4, capacitance Cdc, capacitance
Cfi, capacitance Cfo, inductance Lb, inductance Lfi and inductance Lfo, the metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 and metal-oxide-semiconductor Q4
At it, respectively internal reverse parallel connection has diode, one end of the inductance Lfi and the anode of the AC power VS to be electrically connected respectively
It connects, one end of the inductance Lb and one end of capacitance Cfi are parallel to the other end of inductance Lfi, the other end of the inductance Lb
And the cathode of diode D4 is parallel to the anode of the diode D1, the drain electrode of the cathode, metal-oxide-semiconductor Q3 of the diode D1,
The source electrode of metal-oxide-semiconductor Q2 and the side of capacitance Cfo are parallel to the side of a HID lamp, the other side of the capacitance Cfo and inductance
The side of Lfo is parallel to the other side of the HID lamp, the drain electrode of the cathode, metal-oxide-semiconductor Q4 of diode D2 and the source of metal-oxide-semiconductor Q1
Extremely be parallel to the other side of the inductance Lfo jointly, the anode of diode D2, the cathode of diode D3 and capacitance Cfi it is another
One end is parallel to the cathode of AC power VS jointly, the anode of diode D3, the anode of diode D4, metal-oxide-semiconductor Q4 source electrode,
The source electrode of metal-oxide-semiconductor Q3 and one end earth of capacitance Cdc, the drain electrode of metal-oxide-semiconductor Q1 and the drain electrode of metal-oxide-semiconductor Q2 are jointly in parallel
In the other end of capacitance Cdc.
2. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
Appearance Cdc is straight line chain capacitance.
3. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for holding Cdc is 330 μ F.
4. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for holding Cfi is 0.22 μ F.
5. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for holding Cfo is 22nF.
6. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for feeling Lb is 0.7mH.
7. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for feeling Lfi is 5mH.
8. a kind of HID lamp electric stabilizer improving efficiency as described in claim 1, it is characterised in that：The electricity
The parameter for feeling Lfo is 150 μ H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810625781.1A CN108811284A (en) | 2018-06-18 | 2018-06-18 | A kind of HID lamp electric stabilizer improving efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810625781.1A CN108811284A (en) | 2018-06-18 | 2018-06-18 | A kind of HID lamp electric stabilizer improving efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108811284A true CN108811284A (en) | 2018-11-13 |
Family
ID=64086886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810625781.1A Pending CN108811284A (en) | 2018-06-18 | 2018-06-18 | A kind of HID lamp electric stabilizer improving efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108811284A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990713Y (en) * | 2006-05-10 | 2007-12-12 | 周春香 | Low-frequency square-wave electronic ballast for HID lamp |
| TW200808124A (en) * | 2006-07-20 | 2008-02-01 | Ind Tech Res Inst | Single-stage electronic ballast circuit |
| CN101119605A (en) * | 2006-08-04 | 2008-02-06 | 财团法人工业技术研究院 | Single-stage type electric stabilizer circuit and commutation and power factor correcting circuit |
| CN103533728A (en) * | 2006-08-04 | 2014-01-22 | 财团法人工业技术研究院 | Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof |
| CN208285616U (en) * | 2018-06-18 | 2018-12-25 | 泉州市泉港区先创环保技术服务有限公司 | A kind of HID lamp electric stabilizer improving efficiency |
-
2018
- 2018-06-18 CN CN201810625781.1A patent/CN108811284A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200990713Y (en) * | 2006-05-10 | 2007-12-12 | 周春香 | Low-frequency square-wave electronic ballast for HID lamp |
| TW200808124A (en) * | 2006-07-20 | 2008-02-01 | Ind Tech Res Inst | Single-stage electronic ballast circuit |
| CN101119605A (en) * | 2006-08-04 | 2008-02-06 | 财团法人工业技术研究院 | Single-stage type electric stabilizer circuit and commutation and power factor correcting circuit |
| CN103533728A (en) * | 2006-08-04 | 2014-01-22 | 财团法人工业技术研究院 | Single-stage-type electronic ballast circuit and rectification and power factor correction circuit thereof |
| CN208285616U (en) * | 2018-06-18 | 2018-12-25 | 泉州市泉港区先创环保技术服务有限公司 | A kind of HID lamp electric stabilizer improving efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101527997A (en) | Two-grade full-bridge mode low-frequency square-wave driven HID lamp electronic ballast | |
| US8427064B2 (en) | Electronic ballast circuit for fluorescent lamps | |
| CN201585174U (en) | Led drive circuit | |
| CN101827488B (en) | Fluorescent lamp electronic ballast and lighting device | |
| CN102752929A (en) | High-power factor LED (light-emitting diode) driving circuit supporting silicon controlled rectifier dimming | |
| CN103648202A (en) | Active power factor correction control circuit, chip and LED (Light Emitting Diode) drive circuit | |
| CN201813599U (en) | LED (Light-Emitting Diode) dimmer power | |
| CN104703358B (en) | Wide-voltage-range LED (light emitting diode) lamp switching and dimming driving circuit and LED lamp dimming control system | |
| CN100542371C (en) | Be applicable to the electric ballast of the agricultural high-pressure sodium lamp of 400V/600W | |
| CN104822216B (en) | Small-power HID lamp driving circuit | |
| CN102014557A (en) | LED dimming power supply | |
| CN201153343Y (en) | HID electronic ballast constant power control system controlled by microcontroller | |
| CN103220871A (en) | HID (High Intensity Discharge) xenon lamp electronic ballast with soft switching mode and low-frequency square wave driving | |
| CN203251474U (en) | LED lamp controllable silicon dimming drive circuit | |
| CN203761633U (en) | Energy-saving LED traffic light with long service life | |
| CN208285616U (en) | A kind of HID lamp electric stabilizer improving efficiency | |
| Wang | A novel single-switch single-stage electronic ballast with high input power factor | |
| CN203590567U (en) | AC power supply-based LED drive circuit with function of automatic illumination intensity adjusting | |
| CN202103927U (en) | Light-adjustable gas discharge lamp electronic ballast | |
| CN108811284A (en) | A kind of HID lamp electric stabilizer improving efficiency | |
| CN204539556U (en) | The switch dimming drive circuit of Width funtion LED and LED dimming control system | |
| CN111511079A (en) | Non-stroboscopic dimming driver utilizing input valley bottom compensation | |
| CN203289708U (en) | A multi-loop current-limiting power supply circuit | |
| Có et al. | High-power-factor electronic ballast based on a single power processing stage | |
| CN208402180U (en) | A kind of electrodeless lamp power supply driving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |
|
| WD01 | Invention patent application deemed withdrawn after publication |