CN104837274A - LED driving power supply and LED driving method matched with electronic ballast - Google Patents
LED driving power supply and LED driving method matched with electronic ballast Download PDFInfo
- Publication number
- CN104837274A CN104837274A CN201510261369.2A CN201510261369A CN104837274A CN 104837274 A CN104837274 A CN 104837274A CN 201510261369 A CN201510261369 A CN 201510261369A CN 104837274 A CN104837274 A CN 104837274A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- relay
- led
- electric ballast
- 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.)
- Granted
Links
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Relay Circuits (AREA)
Abstract
The invention relates to an LED driving power supply and an LED driving method matched with an electronic ballast. The LED driving power supply matched with the electronic ballast comprises a half-bridge driving circuit, a relay, a relay control circuit and a voltage detection circuit, wherein the half-bridge driving circuit, the relay, the relay control circuit and the voltage detection circuit are electrically connected in sequence; the voltage detection circuit detects voltage outputted by the electronic ballast, the relay control circuit controls connection or disconnection of the relay according to the detected voltage, the electronic ballast generates transient high voltage when being started, the relay is disconnected so as to avoid the transient high voltage, the transient high voltage is prevented from burning out an LED lamp, the relay is connected again after the transient high voltage is eliminated, and the half-bridge driving circuit starts to operate so as to provide power for the LED lamp.
Description
Technical field
The present invention relates to driving power field, particularly relate to a kind of LED drive power and the driving method that coordinate electric ballast.
Background technology
There is global energy crisis in 20 century 70s; the sense of urgency of energy savings makes many companies be devoted to the research of energy-conserving light source and electronic ballast for fluoresent lamp; along with semiconductor technology develop rapidly; various high anti-pressure power switching device continues to bring out; for the exploitation of electric ballast provides condition; at the end of the seventies, external producer takes the lead in being proposed first generation electric ballast, is the great innovation of illumination development history the next item up.Because it has many advantages such as energy-conservation, cause global very big concern and interest, think to replace the ideal product of Inductive ballast, some famous enterprises have all dropped into suitable human and material resources and have carried out more higher leveled research and development subsequently.Because microelectric technique is advanced by leaps and bounds, facilitate the general level of electric ballast.Electric ballast in the whole world particularly developed country apply in the whole nation.
The nineties, light emitting semiconductor device LED occurred, LED is a kind of semiconducting solid luminescent device, and operating voltage is very low, and operating current is very little, shock resistance and anti-seismic performance good, reliability is high, and the life-span is long, energy-conserving and environment-protective; Because conventional fluorescent light fixture can bring environmental pollution, produce all deficiencies of ultraviolet and noise etc., current LED lamp is towards the future development replacing fluorescent lamp completely; Need up to the voltage of upper kilovolt to puncture gas in fluorescent tube when conventional fluorescent starts to light, charged ion in gas is made to flow to the other end from one end, charged ion creates light after colliding the fluorescent material on tube wall, when voltage resume after fluorescent tube normal ignition is lower than supply voltage.LED has low-voltage and starts, and energy-conservation feature, does not need high voltage just can light, and too high voltage is anti-, and you can bring fatal harm to LED.Therefore, conventional LED lamp can not directly fit on the lamp bracket with electric ballast, could use if replace electric ballast change circuit of must dismantling; Transformation existing line will consume a large amount of manpower and financial resources, limits renewal and the development of LED lamp.And if LED lamp is directly used tradition with on the lamp bracket of electric ballast, just need to avoid the high pressure that electric ballast produces when lighting fluorescence.
Application number be 201210055977.4 patent document disclose a kind of LED drive power of compatible electronic ballast, comprise high pressure absorbing circuit, in order to absorb the output voltage of described electric ballast; Described high pressure absorbing circuit comprises voltage threshold; When described output voltage is higher than voltage threshold, the output voltage of electric ballast absorbs by high pressure absorbing circuit, ensures that output voltage now can not be passed to LED drive power late-class circuit; When described output voltage is less than voltage threshold, high pressure absorbing circuit does not work, and output voltage is now passed to late-class circuit; Thus the high pressure startup stage of electric ballast can be absorbed, and avoid it to flow into late-class circuit, and damage late-class circuit, ensure the normal work of LED drive power.
But the problem of such scheme existence and stability and reliability, high pressure absorbing circuit can not be guaranteed to be absorbed by the high pressure startup stage of electric ballast completely.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of LED drive power and the driving method that coordinate electric ballast, solves the problem that the high pressure produced when reliablely and stablely preventing electric ballast from starting damages LED lamp.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
Coordinating a LED drive power for electric ballast, for being electrically connected the output of electric ballast, comprising: semibridge system drive circuit, relay, control relay circuit and voltage detecting circuit; Described semibridge system drive circuit, relay, control relay circuit and voltage detecting circuit are electrically connected successively;
Described semibridge system drive circuit is for providing constant electric current;
Described voltage detecting circuit is used for the voltage that detected electrons ballast exports;
Described control relay circuit is used for being switched on or switched off according to the voltage control relay detected.
Coordinate a LED driving method for electric ballast, comprising:
The voltage that detected electrons ballast exports;
According to being switched on or switched off of the voltage control relay detected.
The above-mentioned LED drive power of cooperation electric ballast and the beneficial effect of driving method are, the voltage that voltage detecting circuit detected electrons ballast exports, control relay circuit is switched on or switched off according to the voltage control relay detected, instantaneous pressure is produced when electric ballast starts, relay disconnects thus avoids instantaneous pressure, prevents instantaneous pressure from burning out LED, and instantaneous pressure is eliminated rear relay and connected, semibridge system drive circuit is started working, for LED is powered.
Accompanying drawing explanation
Fig. 1 is the structural representation that the embodiment of the present invention one coordinates the LED drive power of electric ballast;
Fig. 2 is the flow chart that the embodiment of the present invention two coordinates the LED driving method of electric ballast.
Label declaration:
1, semibridge system drive circuit; 2, relay; 3, control relay circuit; 4, voltage detecting circuit; 5, LED.
Embodiment
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with execution mode.
The design of most critical of the present invention is: by control relay switch on and off avoid electric ballast start time produce instantaneous pressure, prevent from burning out LED.
The explanation of technical terms that the present invention relates to:
Please refer to Fig. 1,
Coordinating a LED drive power for electric ballast, for being electrically connected the output of electric ballast, comprising: semibridge system drive circuit 1, relay 2, control relay circuit 3 and voltage detecting circuit 4; Described semibridge system drive circuit 1, relay 2, control relay circuit 3 and voltage detecting circuit 4 are electrically connected successively;
Described semibridge system drive circuit 1 is for providing constant electric current;
The voltage that described voltage detecting circuit 4 exports for detected electrons ballast;
Described control relay circuit 3 is for being switched on or switched off according to the voltage control relay 2 detected.
From foregoing description, beneficial effect of the present invention is: the voltage that voltage detecting circuit 4 detected electrons ballast exports, control relay circuit 3 is switched on or switched off according to the voltage control relay 2 detected, instantaneous pressure is produced when electric ballast starts, relay 2 disconnects thus avoids instantaneous pressure, prevents instantaneous pressure from burning out LED, and instantaneous pressure is eliminated rear relay 2 and connected, semibridge system drive circuit 1 is started working, for LED 5 is powered.
Further, described semibridge system drive circuit 1 is electrically connected a resistance R, and described resistance R is used for being electrically connected to LED 5.
From foregoing description, by measuring the electric current exported by the Current adjustment semibridge system drive circuit 1 of resistance R, thus output can the normal constant current worked of driving LED lamp 5.
Further, described semibridge system drive circuit 1 is electrically connected an inductance L with between relay 2.
From foregoing description, by being electrically connected an inductance L dividing potential drop thus reducing the voltage being input to LED, define further protection.
Further, also comprise the first filament analog circuit and the second filament analog circuit, described first filament analog circuit is electrically connected with electric ballast and semibridge system drive circuit 1 respectively, and the second filament analog circuit is electrically connected with electric ballast and relay 2 respectively.
From foregoing description, the LED drive power of electric ballast is coordinated to be electrically connected to the output of electric ballast by the first filament analog circuit and the second filament analog circuit.
Please refer to Fig. 2,
Coordinate a LED driving method for electric ballast, comprising:
The voltage that S1, detected electrons ballast export;
S2, being switched on or switched off according to the voltage control relay 2 detected.
From foregoing description, different according to the voltage that electric ballast exports, being switched on or switched off of control relay 2, instantaneous pressure is produced when electric ballast starts, relay 2 disconnects thus avoids instantaneous pressure, prevents instantaneous pressure from burning out LED 5, and instantaneous pressure is eliminated rear relay 2 and connected, semibridge system drive circuit 1 is started working, for LED 5 is powered.
Further, described " according to being switched on or switched off of the voltage control relay detected " is specially:
If the voltage detected is greater than or equal to predeterminated voltage, relay 2 disconnects;
If the voltage detected is lower than predeterminated voltage, relay 2 is connected.
Please refer to Fig. 1, embodiments of the invention one are:
A kind of LED drive power coordinating electric ballast, for being electrically connected the output of electric ballast, comprising: the first filament analog circuit, the second filament analog circuit, semibridge system drive circuit 1, relay 2, control relay circuit 3, voltage detecting circuit 4, resistance R and inductance L; Described semibridge system drive circuit 1, relay 2, control relay circuit 3 and voltage detecting circuit 4 are electrically connected successively; Described semibridge system drive circuit 1 is electrically connected a resistance R, and described resistance is used for being electrically connected to LED 5; Described inductance L is electrically connected with semibridge system drive circuit 1 and relay 2 respectively; Described first filament analog circuit is electrically connected with semibridge system drive circuit 1, and the second filament analog circuit is electrically connected with relay 2.
Described semibridge system drive circuit 1 is for providing constant electric current;
The voltage that described voltage detecting circuit 4 exports for detected electrons ballast;
Described control relay circuit 3 is for being switched on or switched off according to the voltage control relay 2 detected.
When electric ballast starts, produce instantaneous pressure, voltage detecting circuit 4 detects instantaneous pressure, and the instantaneous pressure control relay 2 that control relay circuit 3 detects according to voltage detecting circuit 4 disconnects, semibridge system drive circuit 1 does not work, and prevents from burning out LED 5; The instantaneous pressure of electric ballast is eliminated, voltage detecting circuit 4 detects a lower voltage, control relay circuit 3 control relay 2 closes, semibridge system drive circuit 1 works, the voltage exported makes to be reduced by the voltage of LED 5 through inductance L dividing potential drop, semibridge system drive circuit 1 detects the electric current by resistance R simultaneously, and according to the Current adjustment output current detected, for LED 5 provides the constant current of normal work.
Please refer to Fig. 2, embodiments of the invention two are:
Coordinate a LED driving method for electric ballast, comprising:
The voltage that S1, detected electrons ballast export;
S2, being switched on or switched off according to the voltage control relay 2 detected; If the voltage detected is greater than or equal to predeterminated voltage, relay 2 disconnects; If the voltage detected is lower than predeterminated voltage, relay 2 is connected.
In sum, the LED drive power of cooperation electric ballast provided by the invention and driving method, being switched on or switched off of the voltage control relay exported by electric ballast, voltage detecting circuit disconnects relay after high pressure being detected, thus the instantaneous pressure avoided when electric ballast starts, and after instantaneous pressure is eliminated engage relay, semibridge system drive circuit is normally worked, for LED normally works power supply.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing specification of the present invention and accompanying drawing content to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. coordinate a LED drive power for electric ballast, for being electrically connected the output of electric ballast, it is characterized in that, comprising: semibridge system drive circuit, relay, control relay circuit and voltage detecting circuit; Described semibridge system drive circuit, relay, control relay circuit and voltage detecting circuit are electrically connected successively;
Described semibridge system drive circuit is for providing constant electric current;
Described voltage detecting circuit is used for the voltage that detected electrons ballast exports;
Described control relay circuit is used for being switched on or switched off according to the voltage control relay detected.
2. the LED drive power of cooperation electric ballast according to claim 1, is characterized in that, described semibridge system drive circuit is electrically connected a resistance, and described resistance is used for being electrically connected to LED.
3. the LED drive power of cooperation electric ballast according to claim 1, is characterized in that, described semibridge system drive circuit be electrically connected an inductance between relay.
4. the LED drive power of cooperation electric ballast according to claim 1, it is characterized in that, also comprise the first filament analog circuit and the second filament analog circuit, described first filament analog circuit is electrically connected with semibridge system drive circuit, and the second filament analog circuit is electrically connected with relay.
5. coordinate a LED driving method for electric ballast, it is characterized in that, comprising:
The voltage that detected electrons ballast exports;
According to being switched on or switched off of the voltage control relay detected.
6. the LED driving method of cooperation electric ballast according to claim 4, is characterized in that, " being switched on or switched off of the described voltage control relay according to detecting " is specially:
If the voltage detected is greater than or equal to predeterminated voltage, relay disconnects;
If the voltage detected is lower than predeterminated voltage, relay is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261369.2A CN104837274B (en) | 2015-05-21 | 2015-05-21 | Coordinate the LED drive power and driving method of electric ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261369.2A CN104837274B (en) | 2015-05-21 | 2015-05-21 | Coordinate the LED drive power and driving method of electric ballast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104837274A true CN104837274A (en) | 2015-08-12 |
| CN104837274B CN104837274B (en) | 2017-09-26 |
Family
ID=53814834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261369.2A Expired - Fee Related CN104837274B (en) | 2015-05-21 | 2015-05-21 | Coordinate the LED drive power and driving method of electric ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104837274B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203590539U (en) * | 2013-10-22 | 2014-05-07 | 潘国雄 | Novel LED lamp tube |
| US20140125253A1 (en) * | 2012-09-05 | 2014-05-08 | Great Eagle Lighting Corporation | Led ballast controller device |
| CN104640322A (en) * | 2015-02-06 | 2015-05-20 | 深圳市豪恩光电照明有限公司 | LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast |
| CN204598428U (en) * | 2015-05-21 | 2015-08-26 | 李冬 | Coordinate the LED drive power of electric ballast |
-
2015
- 2015-05-21 CN CN201510261369.2A patent/CN104837274B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140125253A1 (en) * | 2012-09-05 | 2014-05-08 | Great Eagle Lighting Corporation | Led ballast controller device |
| CN203590539U (en) * | 2013-10-22 | 2014-05-07 | 潘国雄 | Novel LED lamp tube |
| CN104640322A (en) * | 2015-02-06 | 2015-05-20 | 深圳市豪恩光电照明有限公司 | LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast |
| CN204598428U (en) * | 2015-05-21 | 2015-08-26 | 李冬 | Coordinate the LED drive power of electric ballast |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104837274B (en) | 2017-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102202441A (en) | Constant-current controller topology circuit powered directly by alternating current power supply for LED lighting lamp | |
| CN103188845B (en) | The LED light emission device of alternating current Direct driver | |
| CN203279284U (en) | LED lighting power supply drive chip | |
| CN204598428U (en) | Coordinate the LED drive power of electric ballast | |
| CN101695207A (en) | LED tube circuit | |
| CN104837274A (en) | LED driving power supply and LED driving method matched with electronic ballast | |
| CN203068256U (en) | LED (light emitting diode) lamp and LED device for directly replacing fluorescent tube with ballast | |
| CN205408214U (en) | LED (light -emitting diode) drive system | |
| CN104913210A (en) | Light-emitting diode light tube | |
| CN103476177A (en) | Solar energy lighting and commercial power lighting complementing circuit control system | |
| CN102833929B (en) | Self-ballasted fluorescent lamp and open loop protection circuit thereof | |
| CN201248159Y (en) | Combined sleeve type sunlight lamp | |
| CN104822192A (en) | LED energy-saving lamp lightning protection drive circuit | |
| CN204634103U (en) | There is the simple and easy LED driving circuit of energy-saving lamp of surge protection function | |
| CN203718699U (en) | LED (Light Emitting Diode) fluorescent lamp with integrated power supply | |
| CN104661402B (en) | A kind of LED module as light source of illumination device | |
| CN103742884B (en) | A kind of Power-supply-integraLED LED fluorescent lamp | |
| CN103148391A (en) | LED lamp capable of directly replacing ballast fluorescent tube, and device of LED lamp | |
| CN202998599U (en) | Driving power supply for LED lamp | |
| CN202425107U (en) | LED (light emitting diode) infrared inductor | |
| CN202263579U (en) | Line lamp device for diamond synthesis press | |
| CN202889746U (en) | Energy-saving driver of high-voltage light-emitting diode (LED) | |
| CN102080779A (en) | Efficient energy-saving type LED (light emitting diode) straight pipe lamp | |
| CN200994217Y (en) | Fluorescent lamp tube emergency lighting lamp | |
| CN201066687Y (en) | Break protection circuit for LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180112 Address after: 518000 Guangdong province Shenzhen Guangming New District Office of Gongming Ma mountain community third industrial zone 33 Patentee after: Shenzhen Chuangren Technology Co., Ltd. Address before: 33 518000 34 buildings, third industry zone, Mashan community, Gongming street, Guangming District, Guangdong, Shenzhen Patentee before: Li Dong |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20210521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |