CN202721866U - New type driving circuit which is compatible with LED lamp tube - Google Patents
New type driving circuit which is compatible with LED lamp tube Download PDFInfo
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- CN202721866U CN202721866U CN 201220284035 CN201220284035U CN202721866U CN 202721866 U CN202721866 U CN 202721866U CN 201220284035 CN201220284035 CN 201220284035 CN 201220284035 U CN201220284035 U CN 201220284035U CN 202721866 U CN202721866 U CN 202721866U
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Abstract
The utility model relates to a new type driving circuit which is compatible with an LED lamp tube. The driving circuit comprises a filament simulation circuit, a rectifying circuit, a PWM control circuit, a ballast driving circuit, an output control circuit, and a judgment circuit for judging whether the input is an alternating-current input or a ballast input. The filament simulation circuit, the rectifying circuit and the output control circuit are connected successively. The PWM control circuit is connected across the rectifying circuit and the output control circuit. The output end of the judgment circuit is connected to the input end of the ballast driving circuit. The output end of the ballast driving circuit is in electrical connection with the input end of the output control circuit and the input end of the PWM control circuit separately. The input end of the judgment circuit is connected to the filament simulation circuit. According to the utility model, the structure of an original fluorescent lamp tube does not change, advantages of easy installation, easy disassembly and easy utilization are realized, and the improvement cost is reduced.
Description
Technical field
The utility model relates to lighting technical field, be specifically related to a kind of novel, simultaneously can compatible traditional tube with electronic ballast, the LED lamp tube drive circuit of Inductive ballast.
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, namely 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 user's application is very inconvenient.
The utility model content
For the deficiencies in the prior art, for the deficiencies in the prior art, the utility model provides a kind of compatible Inductive ballast, electric ballast, and simultaneously compatible with alternating electricity input needn't be changed the drive circuit of original fluorescent tube structure, LED fluorescent tube easy for installation.
For achieving the above object, the utility model adopts following technical scheme:
A kind of drive circuit of novel compatible with LED fluorescent tube, it comprises the simulation heater chain, rectification circuit, pwm control circuit, ballast drive circuit, output control circuit and be used for to judge that input is to exchange input or the decision circuitry of ballast input, described simulation heater chain, rectification circuit is connected with output control circuit and is connected, pwm control circuit is connected across between rectification circuit and the output control circuit, the output of decision circuitry is connected in the input of ballast drive circuit, the output of ballast drive circuit and the input of output control circuit, the input of pwm control circuit is electrically connected respectively, and the input of decision circuitry is connected to the simulation heater chain.
As improvement, described simulation heater chain comprises first input end, the second input terminal, the 3rd input terminal and four-input terminal, the first rectification circuit and the second rectification circuit that rectification circuit comprises and connects, first input end, the second input terminal is connected in an end of LED fluorescent tube, the 3rd input terminal, four-input terminal is connected to the other end of LED fluorescent tube, first input end and the second input terminal also are connected to output control circuit by the first rectification circuit, the 3rd input terminal and four-input terminal also is connected to output control circuit by the second rectification circuit, one input of decision circuitry is connected on first input end or the second input terminal, and another input of decision circuitry is connected on the 3rd input terminal or four-input terminal.
Preferably, be connected with resistance R 24 and capacitor C 13 in parallel between described first input end and the second input terminal, be connected with resistance R 49 and capacitor C 26 in parallel between described the 3rd input terminal and four-input terminal.
Preferably, described the first rectification circuit and the second rectification circuit are by the full-wave bridge rectifier circuit of four rectifier diodes compositions.
Preferably, described rectifier diode is fast recovery diode or Ultrafast recovery diode.
Preferably, described decision circuitry comprises capacitor C 25, transformer T1, metal-oxide-semiconductor Q1, the input of decision circuitry is connected to the input of transformer T1, capacitor C 25 is connected in decision circuitry wherein between an input and the transformer T1, the drain electrode of metal-oxide-semiconductor Q1 is connected in the output of transformer T1, its source ground, and the output of transformer T1 also is connected in the input of ballast drive circuit.
Preferably, described ballast drive circuit comprises metal-oxide-semiconductor Q2, controllable silicon Q3, the grid of described metal-oxide-semiconductor Q2 is connected in the output of transformer T1 by a resistance R 2, its source electrode is by resistance R 4 ground connection, its drain electrode links to each other respectively with output control circuit, pwm control circuit, the anodic bonding of described controllable silicon Q3 is to output control circuit, its minus earth, and its control utmost point is connected in the source electrode of metal-oxide-semiconductor Q2 by resistance R 20.
Preferably, described output control circuit comprises the A+ output, the A-output, the B+ output, the B-output, triode Q4, diode D11, diode D15, described A+ output, be provided with LED lamp pearl group between the A-output, described B+ output, be provided with the 2nd LED lamp pearl group between the B-output, wherein said A+ output is connected in the output of rectification circuit, the emitter of described triode Q4 is connected in the A+ output, its collector electrode is connected in the B+ output, the A-output is connected in the anode of controllable silicon Q3 by diode D11, the B-output is connected in the drain electrode of metal-oxide-semiconductor Q2 by diode D15.
The drive circuit of a kind of novel compatible with LED fluorescent tube that the utility model is set forth, compared with prior art, its beneficial effect is: the utility model drive circuit judges it is to exchange input or ballast input by decision circuitry, when exchanging input, turn-off ballast drive circuit, starting pwm control circuit powers to LED lamp pearl, when ballast is inputted, turn-off pwm control circuit, starting ballast drive circuit powers to LED lamp pearl, only need four inputs of this drive circuit are connected in twos the two ends of LED fluorescent tube during use, this four inputs and connect one to one with four outputs of the original ballast of fluorescent tube get final product simultaneously, do not change the structure of original fluorescent tube, namely can be the fluorescent lamp power supply behind dismounting the utility model drive circuit, install, dismounting and use all very convenient and saved improvement cost.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the drive circuit of a kind of novel compatible with LED fluorescent tube of the utility model.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the drive circuit of a kind of novel compatible with LED fluorescent tube of the present utility model is described further, so that clearerly understand the utility model technological thought required for protection.
As shown in Figure 1, a kind of drive circuit of novel compatible with LED fluorescent tube, it comprises simulation heater chain 1, rectification circuit 2, pwm control circuit 3, ballast drive circuit 4, output control circuit 6 and be used for to judge that input is to exchange input or the decision circuitry 5 of ballast input, simulation heater chain 1, rectification circuit 2 is connected with output control circuit successively and is connected, pwm control circuit 3 is connected across between rectification circuit 2 and the output control circuit 6, the output of decision circuitry 5 is connected in the input of ballast drive circuit 4, the input of the output of ballast drive circuit 4 and output control circuit 6, the input of pwm control circuit 3 is electrically connected respectively, simulation heater chain 1 is provided with four input terminals (sub-N of first input end, the second input terminal L, the 3rd input terminal N1 and the sub-L4 of four-input terminal), rectification circuit 2 comprises and the first rectification circuit of connecing (diode D16 ~ D19) and the second rectification circuit (diode D20 ~ D23), the sub-N of first input end and the second input terminal L consist of the end that the first input end subgroup is connected to the LED fluorescent tube, between the sub-N of first input end and the second input terminal L, be connected with resistance R 24 and capacitor C 13 in parallel, the 3rd input terminal N1 and the sub-L4 of four-input terminal consist of the other end that the second input subgroup is connected to the LED fluorescent tube, between the 3rd input terminal N1 and the sub-L4 of four-input terminal, be connected with resistance R 49 and capacitor C 26 in parallel, this four input terminals and connect one to one with four outputs of the original ballast of fluorescent tube simultaneously, wherein ballast is electric ballast or Inductive ballast, the first input end subgroup is connected to the input of output control circuit through the first rectification circuit, the second input subgroup is connected to the input of output control circuit through the second rectification circuit, one input of decision circuitry is connected on the sub-N of first input end or the second input terminal L, and another input of decision circuitry is connected on the 3rd input terminal N1 or the sub-L4 of four-input terminal.In the utility model preferred embodiment, the first rectification circuit and the second rectification circuit are full-wave bridge rectifier circuit, and diode D16 ~ D19 and diode D20 ~ D23 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).
Particularly, decision circuitry 5 comprises capacitor C 25, transformer T1, metal-oxide-semiconductor Q1, the input of decision circuitry 5 is connected to the input of transformer T1, capacitor C 25 is connected in decision circuitry 5 wherein between an input and the transformer T1, the drain electrode of metal-oxide-semiconductor Q1 is connected in the output of transformer T1, its source ground, and the output of transformer T1 also is connected in the input of ballast drive circuit.
Ballast drive circuit 4 comprises metal-oxide-semiconductor Q2, controllable silicon Q3, the grid of described metal-oxide-semiconductor Q2 is connected in the output of transformer T1 by a resistance R 2, its source electrode is by resistance R 4 ground connection, its drain electrode links to each other respectively with output control circuit 6, pwm control circuit 3, the anodic bonding of controllable silicon Q3 is to output control circuit, its minus earth, its control utmost point is connected in the source electrode of metal-oxide-semiconductor Q2 by resistance R 20.
Operation principle: when input is when connecing ballast, high-frequency signal can be coupled on the secondary winding by capacitor C 25, transformer T1, and voltage can be opened metal-oxide-semiconductor Q2 and controllable silicon Q3 behind rectifying and wave-filtering, because controllable silicon Q3 conducting meeting makes triode Q4 conducting.The voltage of A+ output consists of a closed-loop path for the voltage (being provided with VDD here) after rectification circuit 2 rectifications by A+ output, LED lamp pearl group, A-output, diode D11, controllable silicon Q3 ground connection, thereby LED lamp pearl group is lit; Another passage consists of a closed-loop path by A+ output, triode Q4, B+ output, the 2nd LED lamp pearl group, B-output, diode D15, metal-oxide-semiconductor Q2, resistance R 4 rear ground connection, thereby the 2nd LED lamp pearl group is lit.The power supply of pwm control circuit 3 is cut off in the simultaneously conducting meeting of metal-oxide-semiconductor Q2, makes pwm control circuit 3 be in off state.
When input is the 50Hz/60Hz alternating current, transformer T1 rear class does not have the starting resistor that is enough to open rear class, this moment, the high voltage of B-output can make pwm control circuit 3 work, make simultaneously metal-oxide-semiconductor Q1 conducting, when metal-oxide-semiconductor Q1 conducting, metal-oxide-semiconductor Q2 is turned off, thereby ballast drive circuit 4 is quit work.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection range of the utility model claim all.
Claims (8)
1. the drive circuit of a novel compatible with LED fluorescent tube, it is characterized in that, it comprises the simulation heater chain, rectification circuit, pwm control circuit, ballast drive circuit, output control circuit and be used for to judge that input is to exchange input or the decision circuitry of ballast input, described simulation heater chain, rectification circuit is connected with output control circuit and is connected, pwm control circuit is connected across between rectification circuit and the output control circuit, the output of decision circuitry is connected in the input of ballast drive circuit, the output of ballast drive circuit and the input of output control circuit, the input of pwm control circuit is electrically connected respectively, and the input of decision circuitry is connected to the simulation heater chain.
2. the drive circuit of novel compatible with LED fluorescent tube according to claim 1, it is characterized in that, described simulation heater chain comprises first input end, the second input terminal, the 3rd input terminal and four-input terminal, the first rectification circuit and the second rectification circuit that rectification circuit comprises and connects, first input end, the second input terminal is connected in an end of LED fluorescent tube, the 3rd input terminal, four-input terminal is connected to the other end of LED fluorescent tube, first input end and the second input terminal also are connected to output control circuit by the first rectification circuit, the 3rd input terminal and four-input terminal also is connected to output control circuit by the second rectification circuit, one input of decision circuitry is connected on first input end or the second input terminal, and another input of decision circuitry is connected on the 3rd input terminal or four-input terminal.
3. the drive circuit of novel compatible with LED fluorescent tube according to claim 2, it is characterized in that, be connected with resistance R 24 and capacitor C 13 in parallel between described first input end and the second input terminal, be connected with resistance R 49 and capacitor C 26 in parallel between described the 3rd input terminal and four-input terminal.
4. the drive circuit of novel compatible with LED fluorescent tube according to claim 2 is characterized in that, the full-wave bridge rectifier circuit that described the first rectification circuit and the second rectification circuit form by four rectifier diodes.
5. the drive circuit of novel compatible with LED fluorescent tube according to claim 4 is characterized in that, described rectifier diode is fast recovery diode or Ultrafast recovery diode.
6. the drive circuit of novel compatible with LED fluorescent tube according to claim 1, it is characterized in that, described decision circuitry comprises capacitor C 25, transformer T1, metal-oxide-semiconductor Q1, the input of decision circuitry is connected to the input of transformer T1, and capacitor C 25 is connected in decision circuitry wherein between an input and the transformer T1, and the drain electrode of metal-oxide-semiconductor Q1 is connected in the output of transformer T1, its source ground, the output of transformer T1 also is connected in the input of ballast drive circuit.
7. the drive circuit of novel compatible with LED fluorescent tube according to claim 6, it is characterized in that, described ballast drive circuit comprises metal-oxide-semiconductor Q2, controllable silicon Q3, the grid of described metal-oxide-semiconductor Q2 is connected in the output of transformer T1 by a resistance R 2, its source electrode is by resistance R 4 ground connection, its drain electrode links to each other respectively with output control circuit, pwm control circuit, the anodic bonding of described controllable silicon Q3 is to output control circuit, its minus earth, its control utmost point is connected in the source electrode of metal-oxide-semiconductor Q2 by resistance R 20.
8. the drive circuit of novel compatible with LED fluorescent tube according to claim 7, it is characterized in that, described output control circuit comprises the A+ output, the A-output, the B+ output, the B-output, triode Q4, diode D11, diode D15, described A+ output, be provided with LED lamp pearl group between the A-output, described B+ output, be provided with the 2nd LED lamp pearl group between the B-output, wherein said A+ output is connected in the output of rectification circuit, the emitter of described triode Q4 is connected in the A+ output, its collector electrode is connected in the B+ output, the A-output is connected in the anode of controllable silicon Q3 by diode D11, the B-output is connected in the drain electrode of metal-oxide-semiconductor Q2 by diode D15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284035 CN202721866U (en) | 2012-06-15 | 2012-06-15 | New type driving circuit which is compatible with LED lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220284035 CN202721866U (en) | 2012-06-15 | 2012-06-15 | New type driving circuit which is compatible with LED lamp tube |
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| CN202721866U true CN202721866U (en) | 2013-02-06 |
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| CN 201220284035 Expired - Fee Related CN202721866U (en) | 2012-06-15 | 2012-06-15 | New type driving circuit which is compatible with LED lamp tube |
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| 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 |
| CN104540296A (en) * | 2015-01-08 | 2015-04-22 | 福建思科通电子科技有限公司 | Compatible LED intelligent fluorescent lamp tube and control method thereof |
| NL2016063A (en) * | 2015-01-08 | 2016-09-23 | Asiatree Tech Co Ltd | LED tube adapted for use with electronic ballast or ac mains and controlling method thereof. |
| CN106102290A (en) * | 2016-08-02 | 2016-11-09 | 欧普照明股份有限公司 | A kind of device based on electronic ballast control electronic control circuit and lighting |
| US9557044B2 (en) | 2014-10-20 | 2017-01-31 | Energy Focus, Inc. | LED lamp with dual mode operation |
| CN106385733A (en) * | 2016-10-13 | 2017-02-08 | 厦门阳光恩耐照明有限公司 | LED fluorescent lamp driving circuit compatible with electronic and inductive and alternating current |
| CN106413182A (en) * | 2016-08-31 | 2017-02-15 | 惠州市时宇虹光电科技有限公司 | Commercial power and ballast input compatible LED light source driving control device |
| WO2017035721A1 (en) * | 2015-08-31 | 2017-03-09 | 深圳市宝瑞恒业科技有限公司 | Compatible led tube lamp having current leakage protection function |
| CN106658845A (en) * | 2016-12-20 | 2017-05-10 | 深圳市福瑞新科技有限公司 | Intelligent and fully compatible LED driving power supply circuit |
| CN106658928A (en) * | 2017-01-05 | 2017-05-10 | 惠州市时宇虹光电科技有限公司 | LED light source drive control circuit for electronic ballast input |
| US11441742B2 (en) | 2015-12-09 | 2022-09-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
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| 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 |
| 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 |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11649934B2 (en) | 2014-09-28 | 2023-05-16 | 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 |
| 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 |
| CN104540296A (en) * | 2015-01-08 | 2015-04-22 | 福建思科通电子科技有限公司 | Compatible LED intelligent fluorescent lamp tube and control method thereof |
| NL2016063A (en) * | 2015-01-08 | 2016-09-23 | Asiatree Tech Co Ltd | LED tube adapted for use with electronic ballast or ac mains and controlling method thereof. |
| US12092272B2 (en) | 2015-03-10 | 2024-09-17 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11698170B2 (en) | 2015-03-10 | 2023-07-11 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11841113B2 (en) | 2015-03-10 | 2023-12-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED lamp and its power source module |
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| US11519565B2 (en) | 2015-03-10 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED lamp and its power source module |
| WO2017035721A1 (en) * | 2015-08-31 | 2017-03-09 | 深圳市宝瑞恒业科技有限公司 | Compatible led tube lamp having current leakage protection function |
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| CN106102290B (en) * | 2016-08-02 | 2019-04-23 | 欧普照明股份有限公司 | A kind of device and illuminator based on electronic ballast control electronic control circuit |
| CN106102290A (en) * | 2016-08-02 | 2016-11-09 | 欧普照明股份有限公司 | A kind of device based on electronic ballast control electronic control circuit and lighting |
| WO2018040119A1 (en) * | 2016-08-31 | 2018-03-08 | 惠州市时宇虹光电科技有限公司 | Led light source drive control device for providing compatibility with mains electricity and input of ballast |
| CN106413182B (en) * | 2016-08-31 | 2021-06-08 | 惠州市时宇虹光电科技有限公司 | LED light source drive control device compatible with mains supply and ballast input |
| CN106413182A (en) * | 2016-08-31 | 2017-02-15 | 惠州市时宇虹光电科技有限公司 | Commercial power and ballast input compatible LED light source driving control device |
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| CN106385733A (en) * | 2016-10-13 | 2017-02-08 | 厦门阳光恩耐照明有限公司 | LED fluorescent lamp driving circuit compatible with electronic and inductive and alternating current |
| CN106658845B (en) * | 2016-12-20 | 2018-07-03 | 深圳市福瑞新科技有限公司 | The full compatible with LED driving power circuit of intelligence |
| CN106658845A (en) * | 2016-12-20 | 2017-05-10 | 深圳市福瑞新科技有限公司 | Intelligent and fully compatible LED driving power supply circuit |
| CN106658928A (en) * | 2017-01-05 | 2017-05-10 | 惠州市时宇虹光电科技有限公司 | LED light source drive control circuit for electronic ballast input |
| CN106658928B (en) * | 2017-01-05 | 2024-10-01 | 谢新勇 | LED light source driving control circuit for electronic ballast input |
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