CN102769975A - A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts - Google Patents
A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts Download PDFInfo
- Publication number
- CN102769975A CN102769975A CN2012102486176A CN201210248617A CN102769975A CN 102769975 A CN102769975 A CN 102769975A CN 2012102486176 A CN2012102486176 A CN 2012102486176A CN 201210248617 A CN201210248617 A CN 201210248617A CN 102769975 A CN102769975 A CN 102769975A
- Authority
- CN
- China
- Prior art keywords
- fluorescent lamp
- ballast
- module
- factor correction
- power factor
- 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
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an LED fluorescent lamp power supply compatible with a fluorescent lamp ballast, which comprises a rectifying module, a fluorescent lamp ballast identification module and a power factor correction and constant current control module, wherein the rectifying module, the fluorescent lamp ballast identification module and the power factor correction and constant current control module are sequentially connected, the rectifying module is used for converting alternating current commercial power into direct current and then outputting the direct current to the fluorescent lamp ballast identification module, the fluorescent lamp ballast identification module is used for identifying the connected fluorescent lamp ballast and outputting the direct current to the power factor correction and constant current control module, and the power factor correction and constant current control module is used for correcting the power factor and outputting constant direct current.
Description
Technical field
The present invention relates to LED daylight lamp power source technical field; Be specifically related to a kind of LED daylight lamp power source of compatible fluorescent lamp ballast; Starter and ballast on the fluorescent light pipe holder promptly need not to dismantle; On the fluorescent light pipe holder anything all need not to change, and is suitable for the four ends input on the fluorescent light pipe holder, just directly load onto can operate as normal the LED daylight lamp power source.
Background technology
As depicted in figs. 1 and 2; Conventional fluorescent is used two types of ballasts; Be respectively inductance type (low frequency formula) and electronic type (high frequency type) ballast; Because conventional fluorescent needs starter to start, the inductance type ballast generation is several times as much as the civil power high pressure and starts fluorescent lamp, and electronic ballast utilizes resonant tank to produce the high pressure starting.Four input ports are arranged on the conventional fluorescent lamp support, and existing LED fluorescent lamp only needs two ac input end mouths, so just has the place of contradiction, want to insert the words of normally lighting in traditional light pipe support to the LED fluorescent lamp:
1. for the Fluorescent Light and Fixtures that inductance type ballast is housed: must say earlier that starter takes off, simultaneously together with two termination short circuits at LED fluorescent lamp two ends.
2. for the Fluorescent Light and Fixtures that electronic ballast is housed: must electronic ballast be taken off, directly receive 4 lamp bases of Fluorescent Light and Fixtures, simultaneously together with two plug short circuits at LED fluorescent lamp two ends with exchanging input.
Top method terminal consumer can't use, and must have the quite technical ability of specialty, and it is very inconvenient, dangerous to operate simultaneously.
Summary of the invention
The technical problem that the present invention will solve provides a kind of LED daylight lamp power source of compatible fluorescent lamp ballast, overcomes the defective that the LED daylight lamp power source of prior art can't directly be used on traditional fluorescent light pipe holder.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The present invention provides a kind of LED daylight lamp power source of compatible fluorescent lamp ballast; Comprise rectification module, fluorescent lamp ballast discrimination module and power factor correction and constant current control module; This rectification module, this fluorescent lamp ballast discrimination module and this power factor correction link to each other with the constant current control module successively; This rectification module is used for converting electric main to direct current; Then this direct current is outputed to this fluorescent lamp ballast discrimination module; This fluorescent lamp ballast discrimination module is used for the fluorescent lamp ballast that connects is distinguished and this direct current is outputed to this power factor correction and constant current control module that this power factor correction and constant current control module are used to carry out power factor correction and export constant DC.
Preferably, this rectification module comprises doube bridge formula rectification circuit.
Preferably, this rectification module also comprises resistance-capacitance network, and this resistance-capacitance network is used to prevent that starter from constantly triggering and prevents that electronic ballast from producing resonance high-voltage.
Preferably, this fluorescent lamp ballast discrimination module comprises the connection in series-parallel loop of distinguishing circuit and LED lamp string of inductance type ballast and electronic ballast.
According to embodiments of the invention, the circuit of distinguishing of this inductance type ballast and electronic ballast is made up of current transformer L1, diode D9, FET Q6 and triode Q1 and auxiliary circuit.
According to embodiments of the invention, this power factor correction and constant current control module are made up of PFC control chip U2, anti-violent change depressor T1, switching tube Q7, optical coupler U1, triode Q2, resistance R 4 and resistance R 14.
Beneficial effect of the present invention: LED daylight lamp power source of the present invention; No matter which kind of ballast has been installed in the conventional fluorescent lamp support; All need not Fluorescent Light and Fixtures is made any change; Can use the LED fluorescent lamp after LED power supply of the present invention packed into, so just condition very easily is provided for the universal use of LED fluorescent lamp.
Description of drawings
The present invention includes following accompanying drawing:
Fig. 1 is a prior art fluorescent lamp inductance type ballast circuit diagram;
Fig. 2 is prior art fluorescence lamp electronic formula ballast circuit figure;
Fig. 3 is the module diagram of power supply of the present invention;
Fig. 4 is an embodiment of the invention rectification module circuit diagram;
Fig. 5 is an embodiment of the invention fluorescent lamp ballast discrimination module circuit diagram;
Fig. 6 is embodiment of the invention power factor correction and constant flow module circuit diagram.
Embodiment
According to accompanying drawing and embodiment the present invention is done further explain below:
Like Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6; The LED daylight lamp power source of the compatible fluorescent lamp ballast of the present invention comprises rectification module, fluorescent lamp ballast discrimination module and power factor correction and constant current control module; This rectification module, this fluorescent lamp ballast discrimination module and this power factor correction link to each other with the constant current control module successively; This rectification module is used for converting electric main to direct current; Then this direct current is outputed to this fluorescent lamp ballast discrimination module; This fluorescent lamp ballast discrimination module is used for the fluorescent lamp ballast that connects is distinguished and this direct current is outputed to this power factor correction and constant current control module that this power factor correction and constant current control module are used to carry out power factor correction and export constant DC.Preferably, this rectification module comprises doube bridge formula rectification circuit.This rectification module also comprises resistance-capacitance network, and this resistance-capacitance network is used to prevent that starter from constantly triggering and prevents that electronic ballast from producing resonance high-voltage.This fluorescent lamp ballast discrimination module comprises the connection in series-parallel loop of distinguishing circuit and LED lamp string of inductance type ballast and electronic ballast.According to embodiments of the invention, the circuit of distinguishing of this inductance type ballast and electronic ballast is made up of current transformer L1, diode D9, FET Q6 and triode Q1 and auxiliary circuit.This power factor correction and constant current control module are made up of PFC (Power Factor Correction, power factor correction) control chip U2, anti-violent change depressor T1, switching tube Q7, optical coupler U1, triode Q2, resistance R 4 and resistance R 14.
If be equipped with in the Fluorescent Light and Fixtures of inductance type ballast, have only unidirectional electric current to flow through in the current transformer L1 if LED daylight lamp power source of the present invention is packed into.Because the relation of end of the same name, can't the positively biased conducting at current transformer L1 other end rectifying tube D9, needed voltage is provided can't for FET Q6 normally, the circuit of back will make LED1 and two groups of lamps of LED2 conspire to create to be series connection.The higher voltage that the power supply input that inductance type ballast is come in produces at output through rectifier bridge; Provide a positive bias to triode Q3 for voltage-stabiliser tube ZD1 power supply through starting resistance R11 and resistance R 10, R27; Thereby constitute a serial regulating circuit; The 8th pin through U2 starts work to IC, and during operate as normal, the high-frequency signal that the auxiliary winding of transformer T2 produces provides operating voltage to U2 after R30 and D18 damping rectification.Resistance-capacitance network is to provide frequency compensated to U2 between 1 pin of U2 (chip L6562 or SN03A) and 2 pin, the peak current value of 4 pin configuration switch pipe Q7.7 pin output high-frequency switching signal is given metal-oxide-semiconductor Q7; After offering the high frequency switching of switching tube Q7 and transformer T1/T2, through time utmost point rectifying tube D13 rectification, 14/C15/C17 is level and smooth through capacitor C; The current sampling that also has triode Q2; Feed back to the 5th pin of U2 through optical coupler U1, a constant current control loop offers LED1 and the LED2 series connection is used thereby produced, and has guaranteed the operate as normal of LED fluorescent lamp under rated power.
, have bidirectional current in the current transformer L1 and produce in the Fluorescent Light and Fixtures of ballast that electronic type is installed if LED daylight lamp power source of the present invention is packed into; Pass through voltage of generation of the forward conduction of D9 like this; Make FET Q6 get into conducting state; The associated circuit network of back; Will LED1 lamp string and the connection in series-parallel of LED2 lamp got up to use, the voltage that the electric current of coming in through electronic ballast like this produces after through rectification directly supplies in LED1 and LED2.Because this moment, voltage can be lower, use so it can directly offer LED, but this voltage can't reach the starting resistor of the PFC control chip U2 of back, U2 can not work, and the constant-current control circuit of back will can not worked yet.
Those skilled in the art do not break away from essence of the present invention and spirit; Can there be the various deformation scheme to realize the present invention; The above is merely the preferable feasible embodiment of the present invention; Be not so limit to interest field of the present invention, the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (6)
1. the LED daylight lamp power source of a compatible fluorescent lamp ballast; It is characterized in that: comprise rectification module, fluorescent lamp ballast discrimination module and power factor correction and constant current control module; Said rectification module, said fluorescent lamp ballast discrimination module and said power factor correction link to each other with the constant current control module successively; Said rectification module is used for converting electric main to direct current; Then said direct current is outputed to said fluorescent lamp ballast discrimination module; Said fluorescent lamp ballast discrimination module is used for the fluorescent lamp ballast that connects is distinguished and said direct current is outputed to said power factor correction and constant current control module that said power factor correction and constant current control module are used to carry out power factor correction and export constant DC.
2. the LED daylight lamp power source of compatible fluorescent lamp ballast according to claim 1, it is characterized in that: said rectification module comprises doube bridge formula rectification circuit.
3. the LED daylight lamp power source of compatible fluorescent lamp ballast according to claim 2, it is characterized in that: said rectification module also comprises resistance-capacitance network, said resistance-capacitance network is used to prevent that starter from constantly triggering and prevents that electronic ballast from producing resonance high-voltage.
4. the LED daylight lamp power source of compatible fluorescent lamp ballast according to claim 1, it is characterized in that: said fluorescent lamp ballast discrimination module comprises the connection in series-parallel loop of distinguishing circuit and LED lamp string of inductance type ballast and electronic ballast.
5. the LED daylight lamp power source of compatible fluorescent lamp ballast according to claim 4, it is characterized in that: the circuit of distinguishing of said inductance type ballast and electronic ballast is made up of current transformer L1, diode D9, FET Q6 and triode Q1 and auxiliary circuit.
6. the LED daylight lamp power source of compatible fluorescent lamp ballast according to claim 1, it is characterized in that: said power factor correction and constant current control module are made up of PFC control chip U2, anti-violent change depressor T1, switching tube Q7, optical coupler U1, triode Q2, resistance R 4 and resistance R 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102486176A CN102769975A (en) | 2012-07-18 | 2012-07-18 | A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102486176A CN102769975A (en) | 2012-07-18 | 2012-07-18 | A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102769975A true CN102769975A (en) | 2012-11-07 |
Family
ID=47097186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102486176A Pending CN102769975A (en) | 2012-07-18 | 2012-07-18 | A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102769975A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | A kind of LED fluorescent lamp power supply compatible with fluorescent lamp system |
| CN105282930A (en) * | 2015-10-20 | 2016-01-27 | 晨辉光宝科技有限公司 | Frequency adaptive LED lamp drive circuit |
| US9441795B2 (en) | 2013-09-25 | 2016-09-13 | Silicon Hill B.V. | LED lamp with ballast detection and method thereof |
| CN106102230A (en) * | 2016-06-28 | 2016-11-09 | 江苏林洋照明科技有限公司 | A kind of LED lamp tube drive circuit of multi input |
| WO2017020219A1 (en) * | 2015-08-03 | 2017-02-09 | 常州明石晶电科技有限公司 | Activation system applicable to led lighting device and led lighting device |
| US9832837B2 (en) | 2015-03-26 | 2017-11-28 | Silicon Hill B.V. | LED lighting system |
| CN110971111A (en) * | 2019-11-14 | 2020-04-07 | 中电科仪器仪表(安徽)有限公司 | Pulse width modulator auxiliary power supply circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541116A (en) * | 2008-03-19 | 2009-09-23 | 杨书水 | Electronic ballast of alternate current high-power LED illumination energy-saving lamp |
| CN201781665U (en) * | 2010-08-17 | 2011-03-30 | 广德利德照明有限公司 | LED lamp tube protective circuit structure |
| CN202738193U (en) * | 2012-07-18 | 2013-02-13 | 东莞市领冠半导体照明有限公司 | LED fluorescent lamp power supply compatible with fluorescent lamp ballast |
-
2012
- 2012-07-18 CN CN2012102486176A patent/CN102769975A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101541116A (en) * | 2008-03-19 | 2009-09-23 | 杨书水 | Electronic ballast of alternate current high-power LED illumination energy-saving lamp |
| CN201781665U (en) * | 2010-08-17 | 2011-03-30 | 广德利德照明有限公司 | LED lamp tube protective circuit structure |
| CN202738193U (en) * | 2012-07-18 | 2013-02-13 | 东莞市领冠半导体照明有限公司 | LED fluorescent lamp power supply compatible with fluorescent lamp ballast |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | A kind of LED fluorescent lamp power supply compatible with fluorescent lamp system |
| US9441795B2 (en) | 2013-09-25 | 2016-09-13 | Silicon Hill B.V. | LED lamp with ballast detection and method thereof |
| US9832837B2 (en) | 2015-03-26 | 2017-11-28 | Silicon Hill B.V. | LED lighting system |
| US10136486B2 (en) | 2015-03-26 | 2018-11-20 | Silicon Hill B.V. | LED lighting system |
| WO2017020219A1 (en) * | 2015-08-03 | 2017-02-09 | 常州明石晶电科技有限公司 | Activation system applicable to led lighting device and led lighting device |
| CN105282930A (en) * | 2015-10-20 | 2016-01-27 | 晨辉光宝科技有限公司 | Frequency adaptive LED lamp drive circuit |
| WO2017067144A1 (en) | 2015-10-20 | 2017-04-27 | 晨辉光宝科技有限公司 | Frequency adaptive led lamp drive circuit |
| CN105282930B (en) * | 2015-10-20 | 2018-10-02 | 晨辉光宝科技有限公司 | A kind of LED lamp drive circuit that frequency is adaptive |
| CN106102230A (en) * | 2016-06-28 | 2016-11-09 | 江苏林洋照明科技有限公司 | A kind of LED lamp tube drive circuit of multi input |
| CN106102230B (en) * | 2016-06-28 | 2017-10-20 | 江苏林洋照明科技有限公司 | A kind of LED tube drive circuit of multi input |
| CN110971111A (en) * | 2019-11-14 | 2020-04-07 | 中电科仪器仪表(安徽)有限公司 | Pulse width modulator auxiliary power supply circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102769975A (en) | A Power Supply for LED Fluorescent Lamps Compatible with Fluorescent Lamp Ballasts | |
| CN205610982U (en) | LED lamp that LED lamp switch was adjusted luminance and is mixed colours and review drive circuit and have it | |
| CN107666744A (en) | LED touch stepless dimming color-temperature regulating driving power and its control method | |
| CN1893754B (en) | Circuit and method for operating at least one electric discharge lamp and at least one LED | |
| US8970118B2 (en) | LED lighting tube | |
| TWI401991B (en) | Power transformation apparatus between dc lighting element and ballast | |
| CN201386941Y (en) | Mining anti-explosion LED fluorescent light | |
| CN202738193U (en) | LED fluorescent lamp power supply compatible with fluorescent lamp ballast | |
| CN103379696B (en) | Light emitting diode lighting device and light emitting diode lamps | |
| CN101893218A (en) | LED tube and circuit thereof | |
| CN206332874U (en) | LED straight lamps | |
| CN201114899Y (en) | LED over-heat protection circuit | |
| CN201601859U (en) | A non-isolated LED drive circuit | |
| CN103313490A (en) | Control circuit of three-way dimming LED (light-emitting diode) lights | |
| CN209572189U (en) | A kind of LED power thyristor regulating optical link | |
| CN202949594U (en) | Dimming system of light-emitting diode (LED) lamp | |
| CN202759631U (en) | Isolate type compatible LED fluorescent lamp tube power supply | |
| CN203504808U (en) | 220V alternating-current power source light-emitting diode indicating module | |
| CN104822215A (en) | LED tube for directly replacement of instant start fluorescent tube | |
| CN205611000U (en) | Light -emitting diode (LED) daylight lamp | |
| CN201724054U (en) | Integral constant-current driving LED fluorescent lamp | |
| CN204335008U (en) | A kind of LED lamp circuit of compatible electronic rectifier | |
| CN101858525A (en) | Integral constant-current driving LED fluorescent lamp | |
| CN201733477U (en) | LED tube and circuit thereof | |
| CN103148391A (en) | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121107 |