CN202603010U - Driving circuit of compatible LED (Light Emitting Diode) lamp tube - Google Patents
Driving circuit of compatible LED (Light Emitting Diode) lamp tube Download PDFInfo
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- CN202603010U CN202603010U CN 201220237308 CN201220237308U CN202603010U CN 202603010 U CN202603010 U CN 202603010U CN 201220237308 CN201220237308 CN 201220237308 CN 201220237308 U CN201220237308 U CN 201220237308U CN 202603010 U CN202603010 U CN 202603010U
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Abstract
The utility model relates to a driving circuit of a compatible LED (Light Emitting Diode) lamp tube. The driving circuit comprises an input and rectification circuit, an artificial load circuit, an output circuit, an input and rectification circuit, an artificial load circuit and an output circuit connected in sequence, wherein the input and rectification circuit comprises four input terminals and two rectification circuits connected in parallel, the four input terminals are correspondingly connected with four output ends of a conventional ballast of the lamp tube one by one, any two input terminals are connected by any one rectification circuit to the input end of the artificial load circuit, and the remaining two input terminals are connected to the input end of the artificial load circuit through the other rectification circuit. The driving circuit provided by the utility model can be directly applied on a lamp of the conventional fluorescent lamp tube, and when the driving circuit is installed, only the LED lamp tube of the driving circuit needs to be directly installed on the lamp tube of the conventional fluorescent lamp tube, the circuit of the conventional fluorescent lamp tube does not need to be changed, and the assembly, the disassembly and the use are very convenient.
Description
Technical field
The utility model relates to lighting technical field, be specifically related to a kind of novel, simultaneously can compatible traditional charged sub-ballast, Inductive ballast, start the LED lamp tube drive circuit of Inductive ballast two lamp formulas fast.
Background technology
Present LED drives the alternating current state (being 90V-240V voltage) that operates mainly in; And the LED light fixture replaces original fluorescent lamp as the novel energy-conserving illuminating product; But it is the replace fluorescent lamps tool directly; Promptly must change circuit, can use behind original Inductive ballast or the electric ballast in the excision florescent lamp fitting.If the conventional lamp circuit causes the great wasting of resources in case change then can't be lighted original fluorescent tube, and the user uses very inconvenience.
The utility model content
Deficiency to prior art; The utility model provides a kind of compatibility to start Inductive ballast two lamp formulas, Inductive ballast, electric ballast fast, and simultaneously compatible alternating current input needn't be changed the drive circuit of original fluorescent tube structure, LED fluorescent tube easy for installation.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of drive circuit of compatible type LED fluorescent tube; It comprises input and rectification circuit, fictitious load circuit, PWM control and output circuit; Said input and rectification circuit, fictitious load circuit, PWM control and output circuit connect successively; Said input and rectification circuit comprise four input terminals and two and the rectification circuit that connects; Four outputs of the ballast of four input terminals and original fluorescent lamp connect one to one, and wherein wantonly two input terminals are connected to the input of fictitious load circuit through arbitrary rectification circuit wherein, remain two input terminals are connected to the fictitious load circuit through an other rectification circuit input.
As improvement; Said fictitious load circuit comprises capacitor C 13, inductance L 5, inductance L 6, capacitor C 2, resistance R 3, resistance R 4, capacitor C 3, and wherein, capacitor C 13 cross-over connections are in the output of rectification circuit; Be connected with inductance L 5 between one end of capacitor C 13 and the end of capacitor C 2; Be connected with inductance L 6 between the other end of the other end of capacitor C 13 and capacitor C 2, said resistance R 3 and resistance R 4 series connection backs one end are connected between inductance L 5 and the capacitor C 2, and the other end is connected to the startup end of PWM control and output circuit; One end ground connection of capacitor C 3, the other end are connected to the filtering end of PWM control and output circuit.
Preferably, the inductance value sum of said inductance L 5 and inductance L 6 is not less than 5MH.
Preferably, the resistance of said resistance R 3 and resistance R 4 is 47K Ω, and the capacitance of capacitor C 3 is 1 μ F.
Preferably, said rectification circuit is the full-wave bridge rectifier circuit that adopts four rectifier diodes to form.
Preferably, said rectifier diode is fast recovery diode or Ultrafast recovery diode.
Preferably, said ballast is electric ballast or Inductive ballast.
The drive circuit of a kind of compatible type LED fluorescent tube that the utility model is set forth; Compared with prior art; Its beneficial effect is: the utility model drive circuit can directly apply on the light fixture of former fluorescent tube; Only need during installation to use the LED fluorescent tube of this drive circuit directly to be installed on the light fixture of former fluorescent tube, need not to change the circuit of original fluorescent tube, install, dismounting and use are all very convenient and practiced thrift improvement cost.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the drive circuit of a kind of compatible type LED of the utility model fluorescent tube.
Embodiment
Below, in conjunction with accompanying drawing and embodiment, the drive circuit of a kind of compatible type LED fluorescent tube of the utility model done further describing, so that clearerly understand the utility model technological thought required for protection.
As shown in Figure 1; A kind of drive circuit of compatible type LED fluorescent tube; It comprises input and rectification circuit 1, fictitious load circuit 2, PWM control and output circuit 3; Input and rectification circuit 1, fictitious load circuit 2, PWM control and output circuit 3 connect successively; Wherein be used for high-frequency ac rectification with the output of alternating current or ballast and be galvanic input and rectification circuit 1 and comprise four input terminals (input terminal N, L, N1 and L4) and two and the full-wave bridge rectifier circuit (second rectification circuit of first rectification circuit that diode D16 ~ D19 forms and diode D2, D9, D12, D15 composition) that connects; Four input terminals are connected to the two ends of former fluorescent tube in twos during installation; Connect one to one simultaneously and with four outputs of fluorescent tube original ballast, wherein ballast is electric ballast or Inductive ballast, and Inductive ballast comprises quick startup inductance type ballast again or has the inductance type ballast of starter; The output of PWM control and output circuit 3 is connected to LED lamp pearl 4, and installation and removal are very convenient.Wantonly two input terminals pass through the input that arbitrary rectification circuit is connected to fictitious load circuit 2 in four input terminals, remain two input terminals are connected to fictitious load circuit 2 through an other rectification circuit input.In the utility model preferred embodiment; Input terminal N, L are connected to fictitious load circuit 2 through first rectification circuit; Input terminal N1, L4 are connected to fictitious load circuit 2 through second rectification circuit, need to prove, more than just the annexation of input terminal and rectification circuit are described; In fact; In use, any two input terminals all can be connected in the fictitious load circuit 2 through bridge rectifier, comprising the new rectification circuit of all being made up of two diodes in first rectification circuit and second rectification circuit.Wherein, diode D16 ~ D19 and diode D2, D9, D12, D15 all adopt fast recovery diode (Fast Recovery Diode is called for short FRD) or Ultrafast recovery diode (Superfast Recovery Diode is called for short SRD).
Fictitious load circuit 2 comprises capacitor C 13, inductance L 5, inductance L 6, capacitor C 2, resistance R 3, resistance R 4, capacitor C 3; Wherein, Capacitor C 13 cross-over connections are connected with inductance L 5 in the output of rectification circuit between one end of capacitor C 13 and the end of capacitor C 2, are connected with inductance L 6 between the other end of the other end of capacitor C 13 and capacitor C 2; Said resistance R 3 and resistance R 4 series connection backs one end are connected between inductance L 5 and the capacitor C 2; The other end is connected to the startup end of PWM control and output circuit, an end ground connection of capacitor C 3, and the other end is connected to the filtering end of PWM control and output circuit.In preferred embodiment, the inductance value sum of inductance L 5 and inductance L 6 is not less than 5MH.In addition; When the utility model drive circuit starts quick startup Inductive ballast two lamp formulas (ラ ピ ッ ト ス タ ー ト formula) and (RAPID START BALLAST 2 LAMP) of one of Inductive ballast fast as compatibility; The resistance that all adopts of resistance R 3 and resistance R 4 is the resistance of 47K Ω, and it is the electric capacity of 1 μ F that capacitor C 3 adopts capacitance.
In order to practice thrift the electricity charge, effectively lower the harmonic wave that causes electric pollution, the utility model drive circuit can also be provided with a circuit of power factor correction between fictitious load circuit 2 and PWM control and output circuit 3.
When wantonly two input terminals are imported as alternating current; (remain two input terminals will can not work also can not influence the operate as normal of alternating current part); Behind rectification circuit, a loop signals is provided by fictitious load circuit 2; Make electric ballast or start Inductive ballast two lamp formulas fast and normally export, do step-down control and treatment rear drive LED lamp pearl 4 through PWM control and output circuit 3.
When importing as electric ballast; The electric ballast output high voltage; Behind rectification circuit, a loop signals is provided, electric ballast or Inductive ballast are normally exported, do step-down control and treatment rear drive LED lamp pearl 4 through PWM control and output circuit 3 by fictitious load circuit 2.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all according to the technical scheme and the design of above description.
Claims (7)
1. the drive circuit of a compatible type LED fluorescent tube; It is characterized in that; It comprises input and rectification circuit, fictitious load circuit, PWM control and output circuit; Said input and rectification circuit, fictitious load circuit, PWM control and output circuit connect successively, and said input and rectification circuit comprise four input terminals and two and the rectification circuit that connects, and four outputs of the ballast of four input terminals and original fluorescent lamp connect one to one; Wherein wantonly two input terminals are connected to the input of fictitious load circuit through arbitrary rectification circuit wherein, remain two input terminals are connected to the fictitious load circuit through an other rectification circuit input.
2. the drive circuit of compatible type LED fluorescent tube according to claim 1; It is characterized in that; Said fictitious load circuit comprises capacitor C 13, inductance L 5, inductance L 6, capacitor C 2, resistance R 3, resistance R 4, capacitor C 3, and wherein, capacitor C 13 cross-over connections are in the output of rectification circuit; Be connected with inductance L 5 between one end of capacitor C 13 and the end of capacitor C 2; Be connected with inductance L 6 between the other end of the other end of capacitor C 13 and capacitor C 2, said resistance R 3 and resistance R 4 series connection backs one end are connected between inductance L 5 and the capacitor C 2, and the other end is connected to the startup end of PWM control and output circuit; One end ground connection of capacitor C 3, the other end are connected to the filtering end of PWM control and output circuit.
3. the drive circuit of compatible type LED fluorescent tube according to claim 2 is characterized in that, the inductance value sum of said inductance L 5 and inductance L 6 is more than or equal to 5MH.
4. the drive circuit of compatible type LED fluorescent tube according to claim 2 is characterized in that, the resistance of said resistance R 3 and resistance R 4 is 47K Ω, and the capacitance of capacitor C 3 is 1 μ F.
5. the drive circuit of compatible type LED fluorescent tube according to claim 1 is characterized in that, said rectification circuit is the full-wave bridge rectifier circuit that adopts four rectifier diodes to form.
6. the drive circuit of compatible type LED fluorescent tube according to claim 5 is characterized in that, said rectifier diode is fast recovery diode or Ultrafast recovery diode.
7. the drive circuit of compatible type LED fluorescent tube according to claim 1 is characterized in that, said ballast is electric ballast or Inductive ballast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237308 CN202603010U (en) | 2012-05-24 | 2012-05-24 | Driving circuit of compatible LED (Light Emitting Diode) lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237308 CN202603010U (en) | 2012-05-24 | 2012-05-24 | Driving circuit of compatible LED (Light Emitting Diode) lamp tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202603010U true CN202603010U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237308 Expired - Fee Related CN202603010U (en) | 2012-05-24 | 2012-05-24 | Driving circuit of compatible LED (Light Emitting Diode) lamp tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202603010U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747583A (en) * | 2013-12-27 | 2014-04-23 | 朱菊红 | LED (light emitting diode) lamp tube compatible with electronic ballast of preheat current |
| CN103968285A (en) * | 2014-04-30 | 2014-08-06 | 深圳市宝瑞恒业科技有限公司 | Compatible LED lamp tube with linkage and self-recovered turn-off function and application method thereof |
| 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 |
| US9557044B2 (en) | 2014-10-20 | 2017-01-31 | Energy Focus, Inc. | LED lamp with dual mode operation |
| US11441742B2 (en) | 2015-12-09 | 2022-09-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11499682B2 (en) | 2014-09-28 | 2022-11-15 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp and a power supply module thereof |
| US11519567B2 (en) | 2014-09-28 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11543086B2 (en) | 2015-03-10 | 2023-01-03 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11754232B2 (en) | 2015-03-10 | 2023-09-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED lamp and power source module thereof related applications |
| US12085263B2 (en) | 2014-09-28 | 2024-09-10 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
-
2012
- 2012-05-24 CN CN 201220237308 patent/CN202603010U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747583A (en) * | 2013-12-27 | 2014-04-23 | 朱菊红 | LED (light emitting diode) lamp tube compatible with electronic ballast of preheat current |
| CN103968285A (en) * | 2014-04-30 | 2014-08-06 | 深圳市宝瑞恒业科技有限公司 | Compatible LED lamp tube with linkage and self-recovered turn-off function and application method thereof |
| CN103968285B (en) * | 2014-04-30 | 2016-09-07 | 深圳市宝瑞恒业科技有限公司 | There is compatible type LED lamp tube and the application process of linkage self-recoverage turn-off function |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US12085263B2 (en) | 2014-09-28 | 2024-09-10 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11499682B2 (en) | 2014-09-28 | 2022-11-15 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp and a power supply module thereof |
| US11519567B2 (en) | 2014-09-28 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US9557044B2 (en) | 2014-10-20 | 2017-01-31 | Energy Focus, Inc. | LED lamp with dual mode operation |
| 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 |
| CN104640322B (en) * | 2015-02-06 | 2017-11-28 | 深圳市豪恩光电照明股份有限公司 | The LED lamp tube driver of compatible electronic ballast |
| US11543086B2 (en) | 2015-03-10 | 2023-01-03 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11754232B2 (en) | 2015-03-10 | 2023-09-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED lamp and power source module thereof related applications |
| US11441742B2 (en) | 2015-12-09 | 2022-09-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180524 |