CN204761772U - High -efficient LED - Google Patents
High -efficient LED Download PDFInfo
- Publication number
- CN204761772U CN204761772U CN201520375212.8U CN201520375212U CN204761772U CN 204761772 U CN204761772 U CN 204761772U CN 201520375212 U CN201520375212 U CN 201520375212U CN 204761772 U CN204761772 U CN 204761772U
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- Circuit Arrangement For Electric Light Sources In General (AREA)
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Abstract
The utility model discloses a high -efficient LED, including chip U1, electric capacity C1, resistance R1, inductance L1, emitting diode D1, diode D3 and diode D4, grounded capacitance C1 and power VCC are connected respectively to chip U1 pin 7, chip U1 pin 3 is connected respectively to chip U1 pin 2, chip U1 pin 6 and chip U1 pin 9 and ground connection, electric capacity C2 is connected to chip U1 pin 1, chip U1 pin 8 is connected respectively to the electric capacity C2 other end, ground connection diode D2 negative pole and inductance L1. The utility model discloses high -efficient LED adopts chip U1 to control the circuit duty cycle, has effectively reduced the energy loss of circuit, and in addition through using diode D3 and diode D4, the spike voltage clamper that can produce inductance L1 because of the leakage inductance is to safe worth, improved circuit's stability, and circuit structure is simple, and is with low costs, especially adapted using widely.
Description
Technical field
The utility model relates to a kind of LED, specifically a kind of efficient LED.
Background technology
Electric current in LED is all controlled by steady resistance or linear voltage regulator under many circumstances, but these two kinds of modes all can the power consumption of extra circuits.
Utility model content
The purpose of this utility model is to provide a kind of efficient LED, 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 efficient LED, comprise chip U1, electric capacity C1, resistance R1, inductance L 1, light-emitting diode D1, diode D3 and diode D4, described chip U1 pin 7 connects ground capacity C1 and power supply VCC respectively, chip U1 pin 2 connects chip U1 pin 3 respectively, chip U1 pin 6 and chip U1 pin 9 also ground connection, chip U1 pin 1 connects electric capacity C2, the electric capacity C2 other end connects chip U1 pin 8 respectively, ground connection diode D2 negative pole and inductance L 1, inductance L 1 other end connects diode D3 positive pole respectively, electric capacity C3 and light-emitting diode D1 positive pole, diode D3 negative pole connects ground connection diode D4 negative pole, described light-emitting diode D1 negative pole connects the electric capacity C3 other end respectively, earth resistance R1, earth resistance R3 and resistance R2, the resistance R2 other end is contact resistance R4 respectively, ground capacity C5 and chip U1 pin 4, the resistance R4 other end connects ground capacity C4.
As further program of the utility model: described chip U1 model is TPS5430.
As the utility model further scheme: described diode D4 is voltage stabilizing didoe.
Compared with prior art, the beneficial effects of the utility model are: the utility model efficient LED, chip U1 is adopted to control circuit duty ratio, effectively reduce the energy loss of circuit, additionally by use diode D3 and diode D4, the peak voltage clamper that inductance L 1 can be produced because of leakage inductance is to safety value, improve the stability of circuit, circuit structure is simple, and cost is low, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of efficient LED.
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 efficient LED, comprise chip U1, electric capacity C1, resistance R1, inductance L 1, light-emitting diode D1, diode D3 and diode D4, chip U1 pin 7 connects ground capacity C1 and power supply VCC respectively, chip U1 pin 2 connects chip U1 pin 3 respectively, chip U1 pin 6 and chip U1 pin 9 also ground connection, chip U1 pin 1 connects electric capacity C2, the electric capacity C2 other end connects chip U1 pin 8 respectively, ground connection diode D2 negative pole and inductance L 1, inductance L 1 other end connects diode D3 positive pole respectively, electric capacity C3 and light-emitting diode D1 positive pole, diode D3 negative pole connects ground connection diode D4 negative pole, light-emitting diode D1 negative pole connects the electric capacity C3 other end respectively, earth resistance R1, earth resistance R3 and resistance R2, the resistance R2 other end is contact resistance R4 respectively, ground capacity C5 and chip U1 pin 4, the resistance R4 other end connects ground capacity C4.
Chip U1 model is TPS5430.
Diode D4 is voltage stabilizing didoe.
Operation principle of the present utility model is: refer to Fig. 1, the duty cycle of switching of the utility model to power supply VCC controls, to establish average voltage on output inductor L1, when the FET switch of chip U1 inside closes, input voltage is connected to inductance L 1 by it, and electric current is formed in inductance L 1, recirculation diode D2 provides current path when power supply VCC disconnects, inductance L 1 can play level and smooth effect to the electric current flowing through light-emitting diode D1, by using resistance R1, R2 etc. monitor light-emitting diode D1 electric current, and the reference voltage of this voltage and control chip U1 inside is compared, thus the final adjustment realized the electric current flowing through light-emitting diode D1, if electric current is too low, then duty ratio increases, average voltage also rises, thus also just result in the rising of electric current, due to recirculation diode D2 and current sense resistor R1, pressure drop on R2 is very low, thus reduce the extra power consumption of circuit, splendid efficiency is provided, additionally by use diode D3 and diode D4, the peak voltage clamper that inductance L 1 can be produced because of leakage inductance to safety value, the stability of raising circuit.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. an efficient LED, comprise chip U1, electric capacity C1, resistance R1, inductance L 1, light-emitting diode D1, diode D3 and diode D4, it is characterized in that, described chip U1 pin 7 connects ground capacity C1 and power supply VCC respectively, chip U1 pin 2 connects chip U1 pin 3 respectively, chip U1 pin 6 and chip U1 pin 9 also ground connection, chip U1 pin 1 connects electric capacity C2, the electric capacity C2 other end connects chip U1 pin 8 respectively, ground connection diode D2 negative pole and inductance L 1, inductance L 1 other end connects diode D3 positive pole respectively, electric capacity C3 and light-emitting diode D1 positive pole, diode D3 negative pole connects ground connection diode D4 negative pole, described light-emitting diode D1 negative pole connects the electric capacity C3 other end respectively, earth resistance R1, earth resistance R3 and resistance R2, the resistance R2 other end is contact resistance R4 respectively, ground capacity C5 and chip U1 pin 4, the resistance R4 other end connects ground capacity C4.
2. efficient LED according to claim 1, is characterized in that, described chip U1 model is TPS5430.
3. efficient LED according to claim 1, is characterized in that, described diode D4 is voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520375212.8U CN204761772U (en) | 2015-06-02 | 2015-06-02 | High -efficient LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520375212.8U CN204761772U (en) | 2015-06-02 | 2015-06-02 | High -efficient LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761772U true CN204761772U (en) | 2015-11-11 |
Family
ID=54476434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520375212.8U Expired - Fee Related CN204761772U (en) | 2015-06-02 | 2015-06-02 | High -efficient LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792443A (en) * | 2016-05-06 | 2016-07-20 | 熊晓丹 | Power supply circuit for driving IC in LED power source |
-
2015
- 2015-06-02 CN CN201520375212.8U patent/CN204761772U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792443A (en) * | 2016-05-06 | 2016-07-20 | 熊晓丹 | Power supply circuit for driving IC in LED power source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Minghua Inventor before: Sun Yibo |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160412 Address after: 511400 Guangdong city of Guangzhou province Panyu District Zhong Cun Jie Zhong Yi Cun Patentee after: Guangzhou pioneer Photoelectric Technology Co., Ltd. Address before: 237000 Lu'an Province Demonstration Park (Anhui Science Park) Patentee before: West Anhui University |
|
| 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: 20151111 Termination date: 20160602 |