CN203120260U - Electronic switch used for LED tubes - Google Patents
Electronic switch used for LED tubes Download PDFInfo
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- CN203120260U CN203120260U CN 201320154338 CN201320154338U CN203120260U CN 203120260 U CN203120260 U CN 203120260U CN 201320154338 CN201320154338 CN 201320154338 CN 201320154338 U CN201320154338 U CN 201320154338U CN 203120260 U CN203120260 U CN 203120260U
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- resistance
- electric capacity
- inductance
- diode
- fluorescent tube
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Abstract
The utility model discloses an electronic switch used for LED tubes. The electronic switch comprises a protecting circuit, a rectifying circuit and a driving circuit. The protecting circuit is sequentially connected with the rectifying circuit and the driving circuit and is connected with a power source, and the driving circuit is connected with the LED tubes. The electronic switch is safe and reliable, and the LED lamp tubes are prevented from damaging human bodies during mounting.
Description
Technical field
The utility model relates to a kind of electronic switch, particularly a kind of electronic switch for the LED fluorescent tube.
Background technology
The electric mode of going into of existing LED fluorescent tube is, the two ends of LED fluorescent tube are mounted to respectively on the lamp socket, and the electrode at the two ends by fluorescent tube makes the LED lamp tube ends connect electricity simultaneously, and by built-in driving LED lighted.Usually when being mounted to the LED fluorescent tube on the lamp socket, an end need be inserted earlier, if but end energising earlier, the LED fluorescent tube other end just might be charged, and human body is damaged.
The utility model content
The utility model provides a kind of safe and reliable electronic switch that is used for the LED fluorescent tube.
For realizing above-mentioned utility model purpose, the utility model has adopted following technical scheme:
A kind of electronic switch for the LED fluorescent tube, it comprises:
Protective circuit, comprise fuse, thermistor, piezo-resistance, first electric capacity, second electric capacity, first resistance, second resistance, first inductance, second inductance and common mode inductance, described fuse one termination power positive pole, the described fuse other end and described piezo-resistance one end, described first electric capacity, one end, described first resistance, one end is connected with described first inductance, one end, described thermistor one termination power negative pole, the described thermistor other end and the described piezo-resistance other end, the described first electric capacity other end, described second resistance, one end is connected with described second inductance, one end, the described first resistance other end, the described first inductance other end, described second electric capacity, one end is connected the described second resistance other end with an inductance one end in the described common mode inductance, the described second inductance other end, the described second electric capacity other end is connected with another inductance one end in the described common mode inductance;
Rectification circuit comprises the rectifier bridge heap, and two inputs of described rectifier bridge heap are connected with the two inductance other ends in the described common mode inductance respectively;
Drive circuit, comprise led driver, first field effect transistor, second field effect transistor, the 3rd inductance, first diode, second diode, the 3rd diode, the 4th diode and the 3rd, four, five, six, seven electric capacity, the and the 3rd, four, five, six, seven, eight, nine, ten, 11,12,13 resistance, described led driver brightness adjustment control pin is connected with described the 4th electric capacity one end, described led driver feedback compensation network pin is connected with described the 5th electric capacity one end, described led driver output driver pin is connected with the 8th resistance one end, described led driver power pin is connected with described the 11 resistance one end, described led driver ground pin and described the 4th electric capacity other end, described the 5th electric capacity other end, described second diode cathode, the described first field effect transistor source electrode, described the 6th electric capacity one end, described the 12 resistance one end is connected with described the 13 resistance one end, described led driver current sense pin and described the 3rd inductance one end, described the 12 resistance other end is connected with described the 13 resistance other end, described the 8th resistance other end is connected with first fet gate, described the 11 resistance other end is connected with described first diode cathode, described first diode cathode is connected with described the 3rd diode cathode, described the 3rd diode cathode, described the 3rd inductance other end, described the 4th diode cathode with connect LED fluorescent tube positive pole after described the 7th electric capacity one end is connected, described second field effect transistor drain electrode, described second diode cathode, described the 4th diode cathode with connect LED fluorescent tube negative pole after the 7th electric capacity other end is connected, described the 6th electric capacity other end is connected with described the 9th resistance one end through described the tenth resistance, described the 9th resistance other end, described first field effect transistor drain electrode, described the 3rd resistance one end is connected with described rectifier bridge heap cathode output end with the 3rd electric capacity one end, the described second field effect transistor source electrode, described the 7th resistance one end, described the 6th resistance one end is connected with described rectifier bridge heap cathode output end with described the 3rd electric capacity other end, described second fet gate and described the 7th resistance other end, described the 5th resistance one end is connected with described the 4th resistance one end, described the 3rd resistance other end is connected with described the 4th resistance other end, and described the 5th resistance other end is connected with described the 6th resistance other end.
Preferably, described first and second field effect transistor all adopts the NMOS pipe.
Preferably, described the 6th electric capacity is polar capacitor, and described the 6th electric capacity one end is negative pole.
Preferably, described the 7th electric capacity is polar capacitor, and described the 7th electric capacity one end is anodal.
Preferably, described third and fourth diode all adopts voltage stabilizing didoe.
When the LED fluorescent tube had only termination electricity, this power supply was closed because of second field effect transistor, and entire circuit does not constitute the loop, and the fluorescent tube other end can be not charged; Have only when the LED lamp tube ends all connects electricity, entire circuit just can constitute the loop, and fluorescent tube is lighted.
Compared with prior art, the beneficial effects of the utility model are: safe and reliable, and during installation, the LED fluorescent tube is not damaged to human body.
Description of drawings
Fig. 1 is the circuit diagram that is used for the electronic switch of LED fluorescent tube in the utility model one preferred embodiment.
Embodiment
Consult Fig. 1, the electronic switch that should be used for the LED fluorescent tube comprises fuse F, thermistor RT, piezo-resistance RV, first capacitor C, 1, the second capacitor C 2, the 3rd capacitor C 3, the four capacitor C 4, the five capacitor C 5, the 6th capacitor C 6, the seven capacitor C 7, the first resistance R 1, second resistance R, 2, the three resistance R, 3, the four resistance R 4, the 5th resistance R 5, the six resistance R 6, the seven resistance R 7, the 8th resistance R 8, the nine resistance R 9, the ten resistance R 10, the 11 resistance R 11, the 12 resistance R 12, the 13 resistance R 13, first inductance L, 1, the second inductance L, 2, the three inductance L 3, common mode inductance L4, rectifier bridge heap BD, led driver U, the first field effect transistor Q1, the second field effect transistor Q2, the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4; Wherein, first and second field effect transistor adopts the NMOS pipe, and the 6th, seven electric capacity adopt polar capacitor, and third and fourth diode adopts voltage stabilizing didoe.
Fuse F one termination power positive pole, the fuse F other end and piezo-resistance RV one end, first capacitor C, 1 one ends, first resistance R, 1 one ends are connected with first inductance L, 1 one ends, thermistor RT one termination power negative pole, the thermistor RT other end and the piezo-resistance RV other end, first capacitor C, 1 other end, second resistance R, 2 one ends are connected with second inductance L, 2 one ends, first resistance R, 1 other end, first inductance L, 1 other end, second capacitor C, 2 one ends are connected with an inductance one end in the common mode inductance L 4, second resistance R, 2 other ends, second inductance L, 2 other ends, second capacitor C, 2 other ends are connected with another inductance one end in the common mode inductance L 4, two inputs of rectifier bridge heap BD are connected with the two inductance other ends in the common mode inductance L 4 respectively, led driver U brightness adjustment control pin is connected with the 4th capacitor C 4 one ends, led driver U feedback compensation network pin is connected with the 5th capacitor C 5 one ends, led driver U output driver pin is connected with the 8th resistance R 8 one ends, led driver U power pin is connected with the 11 resistance R 11 1 ends, led driver U ground pin and the 4th capacitor C 1 other end, the 5th capacitor C 5 other ends, the second diode D2 negative pole, the first field effect transistor Q1 source electrode, the 6th capacitor C 6 negative poles, the 12 resistance R 12 1 ends are connected with the 13 resistance R 13 1 ends, led driver U current sense pin and the 3rd inductance L 3 one ends, the 12 resistance R 12 other ends are connected with the 13 resistance R 13 other ends, the 8th resistance R 8 other ends are connected with the first field effect transistor Q1 grid, the 11 resistance R 11 other ends are connected with the first diode D1 negative pole, the first diode cathode D1 is connected with the 3rd diode cathode D3, the 3rd diode D3 negative pole, the 3rd inductance L 3 other ends, the 4th diode cathode D4 is connected the back and connects LED fluorescent tube positive pole with the 7th capacitor C 7 positive poles, second field effect transistor Q2 drain electrode, the second diode D2 positive pole, the 4th diode D4 is anodal to be connected the back and to connect LED fluorescent tube negative pole with the 7th capacitor C 7 negative poles, the 6th capacitor C 6 positive poles are connected with the 9th resistance R 9 one ends through the tenth resistance R 10, the 9th resistance R 9 other ends, first field effect transistor Q1 drain electrode, the 3rd resistance R 3 one ends are connected with rectifier bridge heap BD cathode output end with the 3rd capacitor C 3 one ends, the second field effect transistor Q2 source electrode, the 7th resistance R 7 one ends, the 6th resistance R 6 one ends are connected with rectifier bridge heap BD cathode output end with the 3rd capacitor C 3 other ends, the second field effect transistor Q2 grid and the 7th resistance R 7 other ends, the 5th resistance R 5 one ends are connected with the 4th resistance R 4 one ends, the 3rd resistance R 3 other ends are connected with the 4th resistance R 4 other ends, and the 5th resistance R 5 other ends are connected with the 6th resistance R 6 other ends.
Below only be concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.
Claims (5)
1. electronic switch that is used for the LED fluorescent tube is characterized in that it comprises:
Protective circuit, comprise fuse, thermistor, piezo-resistance, first electric capacity, second electric capacity, first resistance, second resistance, first inductance, second inductance and common mode inductance, described fuse one termination power positive pole, the other end and described piezo-resistance one end, described first electric capacity, one end, described first resistance, one end is connected with described first inductance, one end, described thermistor one termination power negative pole, the other end and the described piezo-resistance other end, the described first electric capacity other end, described second resistance, one end is connected with described second inductance, one end, the described first resistance other end, the described first inductance other end, described second electric capacity, one end is connected the described second resistance other end with an inductance one end in the described common mode inductance, the described second inductance other end, the described second electric capacity other end is connected with another inductance one end in the described common mode inductance;
Rectification circuit comprises the rectifier bridge heap, and two inputs of described rectifier bridge heap are connected with the two inductance other ends in the described common mode inductance respectively;
Drive circuit, comprise led driver, first field effect transistor, second field effect transistor, the 3rd inductance, first diode, second diode, the 3rd diode, the 4th diode and the 3rd, four, five, six, seven electric capacity and the 3rd, four, five, six, seven, eight, nine, ten, 11,12,13 resistance, described led driver brightness adjustment control pin is connected with described the 4th electric capacity one end, described led driver feedback compensation network pin is connected with described the 5th electric capacity one end, described led driver output driver pin is connected with the 8th resistance one end, described led driver power pin is connected with described the 11 resistance one end, described led driver ground pin and described the 4th electric capacity other end, described the 5th electric capacity other end, described second diode cathode, the described first field effect transistor source electrode, described the 6th electric capacity one end, described the 12 resistance one end is connected with described the 13 resistance one end, described led driver current sense pin and described the 3rd inductance one end, described the 12 resistance other end is connected with described the 13 resistance other end, described the 8th resistance other end is connected with first fet gate, described the 11 resistance other end is connected with described first diode cathode, described first diode cathode is connected with described the 3rd diode cathode, described the 3rd diode cathode, described the 3rd inductance other end, described the 4th diode cathode with connect LED fluorescent tube positive pole after described the 7th electric capacity one end is connected, described second field effect transistor drain electrode, described second diode cathode, described the 4th diode cathode with connect LED fluorescent tube negative pole after the 7th electric capacity other end is connected, described the 6th electric capacity other end is connected with described the 9th resistance one end through described the tenth resistance, described the 9th resistance other end, described first field effect transistor drain electrode, described the 3rd resistance one end is connected with described rectifier bridge heap cathode output end with the 3rd electric capacity one end, the described second field effect transistor source electrode, described the 7th resistance one end, described the 6th resistance one end is connected with described rectifier bridge heap cathode output end with described the 3rd electric capacity other end, described second fet gate and described the 7th resistance other end, described the 5th resistance one end is connected with described the 4th resistance one end, described the 3rd resistance other end is connected with described the 4th resistance other end, and described the 5th resistance other end is connected with described the 6th resistance other end.
2. the electronic switch for the LED fluorescent tube according to claim 1 is characterized in that, described first and second field effect transistor adopts the NMOS pipe.
3. the electronic switch for the LED fluorescent tube according to claim 1 is characterized in that, described the 6th electric capacity is polar capacitor, and described the 6th electric capacity one end is negative pole.
4. the electronic switch for the LED fluorescent tube according to claim 1 is characterized in that, described the 7th electric capacity is polar capacitor, and described the 7th electric capacity one end is anodal.
5. the electronic switch for the LED fluorescent tube according to claim 1 is characterized in that, described third and fourth diode all adopts voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154338 CN203120260U (en) | 2013-03-29 | 2013-03-29 | Electronic switch used for LED tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154338 CN203120260U (en) | 2013-03-29 | 2013-03-29 | Electronic switch used for LED tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203120260U true CN203120260U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154338 Expired - Fee Related CN203120260U (en) | 2013-03-29 | 2013-03-29 | Electronic switch used for LED tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203120260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797249A (en) * | 2016-06-06 | 2016-07-27 | 佛山市美客医疗科技有限公司 | Smart respiration-type oxygen supply control terminal |
-
2013
- 2013-03-29 CN CN 201320154338 patent/CN203120260U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797249A (en) * | 2016-06-06 | 2016-07-27 | 佛山市美客医疗科技有限公司 | Smart respiration-type oxygen supply control terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171108 Address after: 215100 3 Building 8, Stone Hill Road, Dongshan Town, Dongshan Town, Suzhou, Wuzhong District, Jiangsu Patentee after: Suzhou East Photoelectric Technology Co., Ltd. Address before: 215000 No. 8 Stone Mountain Road, Dongshan Industrial Park, Suzhou, Jiangsu, Wuzhong District Patentee before: Suzhou Dongshan Precision Manufacturing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20200329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |