CN204681627U - A kind of anti-interference electricity-saving lamp - Google Patents
A kind of anti-interference electricity-saving lamp Download PDFInfo
- Publication number
- CN204681627U CN204681627U CN201520251963.9U CN201520251963U CN204681627U CN 204681627 U CN204681627 U CN 204681627U CN 201520251963 U CN201520251963 U CN 201520251963U CN 204681627 U CN204681627 U CN 204681627U
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- China
- Prior art keywords
- electric capacity
- chip
- diode
- transformer
- resistance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of anti-interference electricity-saving lamp, comprise chip U1, chip U2, electric capacity C1, electric capacity C2, transformer T and resistance R1, electric capacity C1 one end connects input Ui, diode D1 positive pole and transformer T coil L1 respectively, the transformer T coil L1 other end connects diode D2 positive pole and chip U2 pin D respectively, and diode D2 negative pole connects diode D1 negative pole.The utility model adopts chip U2 to use as isolation, and optimized circuit structure, make circuit structure comparatively simple, antijamming capability is strong, stability is high, and LED both end voltage is highly stable, is applicable to promoting the use of.
Description
Technical field
The utility model relates to a kind of power circuit, specifically a kind of anti-interference electricity-saving lamp.
Background technology
Electricity-saving lamp is the semiconductor device that a kind of constant current drives, and compares, have the plurality of advantages such as efficiency is high, volume is little, brightness is high relative to traditional light sources such as incandescent lamps.So CFL lighting progressively replaces traditional lighting system, but due to the diode characteristic of electricity-saving lamp, when forward conduction, flow through electric current and its positive pressure drop exponentially relation of electricity-saving lamp, compared to traditional lighting system, CFL lighting needs extra drive circuit, and the quality of drive circuit determines brightness, stability, life-span etc. the index of electricity-saving lamp.
Utility model content
The purpose of this utility model is the anti-interference electricity-saving lamp providing a kind of stability high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of anti-interference electricity-saving lamp, comprises chip U1, chip U2, electric capacity C1, electric capacity C2, transformer T and resistance R1, described electric capacity C1 one end connects input Ui respectively, diode D1 positive pole and transformer T coil L1, the transformer T coil L1 other end connects diode D2 positive pole and chip U2 pin D respectively, and diode D2 negative pole connects diode D1 negative pole, and described chip U2 pin S connects electric capacity C2 respectively, electric capacity C8, the electric capacity C1 other end, the input Ui other end, transformer T coil L3 and electric capacity C6, the electric capacity C6 other end connects diode D4 negative pole and chip U1 pin 1, the diode D4 positive pole connection transformer T coil L3 other end respectively, and chip U1 pin 2 connects the electric capacity C8 other end respectively, resistance R1 and chip U2 pin C, the resistance R1 other end connects the electric capacity C2 other end, described chip U1 pin 4 contact resistance R2, the resistance R2 other end connects the A pole of electric capacity C7 and one-way SCR VS respectively, the electric capacity C7 other end connects the G pole of one-way SCR VS, the K pole contact resistance R3 respectively of one-way SCR VS, electric capacity C3, electric capacity C4, transformer T coil L2 and LED negative pole, the transformer T coil L2 other end connects diode D3 positive pole, and diode D3 negative pole connects the electric capacity C3 other end respectively, chip U1 pin 3 and inductance L 4, inductance L 4 other end is the contact resistance R3 other end respectively, the electric capacity C4 other end and resistance R4, the resistance R4 other end connects LED positive pole.
As further program of the utility model: described chip U1 model is 4N25.
As further program of the utility model: described chip U2 model is TOP414G.
As further program of the utility model: described one-way SCR VS model is TL431.
As the utility model further scheme: described input Ui is input as 220V alternating current.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts chip U2 to use as isolation, and optimized circuit structure, make circuit structure simpler, antijamming capability is strong, stability is high, and LED both end voltage is highly stable, is applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of anti-interference electricity-saving lamp.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of anti-interference electricity-saving lamp, comprises chip U1, chip U2, electric capacity C1, electric capacity C2, transformer T and resistance R1, electric capacity C1 one end connects input Ui respectively, diode D1 positive pole and transformer T coil L1, the transformer T coil L1 other end connects diode D2 positive pole and chip U2 pin D respectively, and diode D2 negative pole connects diode D1 negative pole, and chip U2 pin S connects electric capacity C2 respectively, electric capacity C8, the electric capacity C1 other end, the input Ui other end, transformer T coil L3 and electric capacity C6, the electric capacity C6 other end connects diode D4 negative pole and chip U1 pin 1, the diode D4 positive pole connection transformer T coil L3 other end respectively, and chip U1 pin 2 connects the electric capacity C8 other end respectively, resistance R1 and chip U2 pin C, the resistance R1 other end connects the electric capacity C2 other end, chip U1 pin 4 contact resistance R2, the resistance R2 other end connects the A pole of electric capacity C7 and one-way SCR VS respectively, the electric capacity C7 other end connects the G pole of one-way SCR VS, the K pole contact resistance R3 respectively of one-way SCR VS, electric capacity C3, electric capacity C4, transformer T coil L2 and LED negative pole, the transformer T coil L2 other end connects diode D3 positive pole, and diode D3 negative pole connects the electric capacity C3 other end respectively, chip U1 pin 3 and inductance L 4, inductance L 4 other end is the contact resistance R3 other end respectively, the electric capacity C4 other end and resistance R4, the resistance R4 other end connects LED positive pole.
Chip U2 model is TOP414G.
One-way SCR VS model is TL431.
Input Ui is input as 220V alternating current.
Operation principle of the present utility model is: electric capacity C1 is input filter capacitor; diode D1 and D2 forms primary side clamping protective circuit; resistance R1 is control end resistance; electric capacity C2 is shunt capacitance; C8 in parallel between the C-S pin of chip U2 prevents from causing when High-frequency Interference appears in control end triggering power-down circuit misoperation; diode D3 is for exporting rectifier diode; the output filter that electric capacity C3, electric capacity C4 and inductance L 4 are formed; electric capacity C4 is output de-noising electric capacity, and external error amplifier is made up of one-way SCR TL431.When there is fluctuation in output voltage, sampling voltage is obtained after resistance R3 dividing potential drop, just compare with the reference voltage of TL431, produce an external control signal, change chip TOP414G control end electric current by chip PC817A again, and then regulate duty ratio that output Uo is tended towards stability, chip PC817A is also for buffer action, improve the antijamming capability of circuit, the gain of control loop is set by resistance R2.
Claims (5)
1. an anti-interference electricity-saving lamp, comprises chip U1, chip U2, electric capacity C1, electric capacity C2, transformer T and resistance R1, is characterized in that, described electric capacity C1 one end connects input Ui respectively, diode D1 positive pole and transformer T coil L1, the transformer T coil L1 other end connects diode D2 positive pole and chip U2 pin D respectively, and diode D2 negative pole connects diode D1 negative pole, and described chip U2 pin S connects electric capacity C2 respectively, electric capacity C8, the electric capacity C1 other end, the input Ui other end, transformer T coil L3 and electric capacity C6, the electric capacity C6 other end connects diode D4 negative pole and chip U1 pin 1, the diode D4 positive pole connection transformer T coil L3 other end respectively, and chip U1 pin 2 connects the electric capacity C8 other end respectively, resistance R1 and chip U2 pin C, the resistance R1 other end connects the electric capacity C2 other end, described chip U1 pin 4 contact resistance R2, the resistance R2 other end connects the A pole of electric capacity C7 and one-way SCR VS respectively, the electric capacity C7 other end connects the G pole of one-way SCR VS, the K pole contact resistance R3 respectively of one-way SCR VS, electric capacity C3, electric capacity C4, transformer T coil L2 and LED negative pole, the transformer T coil L2 other end connects diode D3 positive pole, and diode D3 negative pole connects the electric capacity C3 other end respectively, chip U1 pin 3 and inductance L 4, inductance L 4 other end is the contact resistance R3 other end respectively, the electric capacity C4 other end and resistance R4, the resistance R4 other end connects LED positive pole.
2. anti-interference electricity-saving lamp according to claim 1, is characterized in that, described chip U1 model is 4N25.
3. anti-interference electricity-saving lamp according to claim 1, is characterized in that, described chip U2 model is TOP414G.
4. anti-interference electricity-saving lamp according to claim 1, is characterized in that, described one-way SCR VS model is TL431.
5. anti-interference electricity-saving lamp according to claim 1, is characterized in that, described input Ui is input as 220V alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251963.9U CN204681627U (en) | 2015-04-24 | 2015-04-24 | A kind of anti-interference electricity-saving lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251963.9U CN204681627U (en) | 2015-04-24 | 2015-04-24 | A kind of anti-interference electricity-saving lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681627U true CN204681627U (en) | 2015-09-30 |
Family
ID=54181291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520251963.9U Expired - Fee Related CN204681627U (en) | 2015-04-24 | 2015-04-24 | A kind of anti-interference electricity-saving lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681627U (en) |
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2015
- 2015-04-24 CN CN201520251963.9U patent/CN204681627U/en not_active Expired - Fee Related
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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: 20150930 Termination date: 20160424 |