CN203748064U - Simple LED power supply - Google Patents
Simple LED power supply Download PDFInfo
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- CN203748064U CN203748064U CN201420048107.9U CN201420048107U CN203748064U CN 203748064 U CN203748064 U CN 203748064U CN 201420048107 U CN201420048107 U CN 201420048107U CN 203748064 U CN203748064 U CN 203748064U
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- power supply
- capacitor
- led power
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- resistance
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Abstract
A simple LED power supply comprises resistors (R1, R2, R3 and R4), capacitors (C1, C2 and C3), a bridge rectifier (BR1), a diode (D5), an integrated circuit (IC1) and a transformer (T1), wherein the input end of the LED power supply is connected with ac, the output end of the LED power supply is connected with an LED lamp, the input end of the bridge rectifier (BR1) is connected with ac, the anode of the bridge rectifier (BR1) is connected with the anode of the capacitor (C1), one end of the resistor (R1) and one end of a primary coil of the transformer (T1), and the cathode of the bridge rectifier (BR1) is connected with the cathode of the capacitor (C1) and grounded. According to the utility model, the amount of used electronic components is reduced, the stability and reliability of the power supply are improved, an original LED power supply circuit is simplified, the preparation procedures are simplified, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of driving power, relates in particular to a kind of simple and easy LED power supply.
Background technology
The invention of electric light has been brought human society into the bright world, along with scientific and technical development, the performance of light fixture, structure, type are also constantly being created and are being upgraded, the environment of the earth worsens increasingly now, and people more and more favor efficient, energy-conservation LED light fixture, and the development of LED technology is also more and more ripe, but in the process using in reality, the light fixture of LED is permitted many-sided deficiency in addition, for example, and the supply unit of LED.
The quality of LED power supply has directly restricted the reliability of LED product, because LED is the semiconductor device of characteristic sensitivity, has again negative temperature characteristic, thereby in application process, needs its operating state stablize and protect.LED device is very harsh to the requirement of driving power, and LED is different from common blank sheet of paper bulb, and LED cannot directly connect the alternating current of 220V.LED is by the low-voltage driving of 2～3V, must design complicated translation circuit.Because power supply has as the left and right as heart at whole light fixture, design a good power supply and must integrate and consider each factor.
Utility model content
The purpose of this utility model is to propose a kind of LED power supply of having simplified original LED power circuit.
For reaching this object, the utility model by the following technical solutions:
A kind of simple and easy LED power supply, comprises resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, bridge heap BR1, diode D5, integrated circuit (IC) 1 and transformer T1, and the input of LED power supply connects alternating current, and the output of LED power supply connects LED lamp; The input of bridge heap BR1 connects alternating current, and one end of the bridge heap positive pole of BR1 and the positive pole of capacitor C 1, one end of resistance R 1 and the primary coil of transformer T1 is connected, and the negative pole of bridge heap BR1 connects negative pole the ground connection of capacitor C 1; One end of the other end contact resistance R2 of resistance R 1, the other end of resistance R 2 connects the VDO pin of integrated circuit (IC) 1 and the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects GND pin the ground connection of integrated circuit (IC) 1, the other end of the primary coil of the DRA pin connection transformer T1 of integrated circuit (IC) 1; One end of the CS pin contact resistance R3 of integrated circuit (IC) 1, the other end ground connection of resistance R 3; One end of the secondary coil of transformer T1 connects the positive pole of diode D5, and the negative pole of diode D5 connects the positive pole of the output of one end of capacitor C 3 and one end of resistance R 4 and described LED power supply; The other end of the secondary coil of transformer T1 connects the negative pole of the output of the negative pole of capacitor C 3 and the other end of resistance R 4 and described LED power supply.
The model of described integrated circuit (IC) 1 is LIS8510.
The parameter of described capacitor C 1 is 4.7uF, 400V, 105 DEG C.
The parameter of described capacitor C 3 is 100uF, 16V, 105 DEG C.
The beneficial effects of the utility model: reduce the quantity that uses electronic component, improve stability and the reliability of power supply, simplified original LED power circuit, simplified production process, enhance productivity.
Brief description of the drawings
Fig. 1 is the circuit diagram of an embodiment of the present utility model.
Wherein: resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, bridge heap BR1, diode D5, integrated circuit (IC) 1, transformer T1.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
As Fig. 1, a kind of simple and easy LED power supply, comprises resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, bridge heap BR1, diode D5, integrated circuit (IC) 1 and transformer T1, and the input of LED power supply connects alternating current, and the output of LED power supply connects LED lamp; The input of bridge heap BR1 connects alternating current, and one end of the bridge heap positive pole of BR1 and the positive pole of capacitor C 1, one end of resistance R 1 and the primary coil of transformer T1 is connected, and the negative pole of bridge heap BR1 connects negative pole the ground connection of capacitor C 1; One end of the other end contact resistance R2 of resistance R 1, the other end of resistance R 2 connects the VDO pin of integrated circuit (IC) 1 and the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects GND pin the ground connection of integrated circuit (IC) 1, the other end of the primary coil of the DRA pin connection transformer T1 of integrated circuit (IC) 1; One end of the CS pin contact resistance R3 of integrated circuit (IC) 1, the other end ground connection of resistance R 3; One end of the secondary coil of transformer T1 connects the positive pole of diode D5, and the negative pole of diode D5 connects the positive pole of the output of one end of capacitor C 3 and one end of resistance R 4 and described LED power supply; The other end of the secondary coil of transformer T1 connects the negative pole of the output of the negative pole of capacitor C 3 and the other end of resistance R 4 and described LED power supply.
This LED power supply is in the time of work, and power input connects the utility circuit of 220V, and electric current is through bridge heap BR1 rectification, and the electric current after rectification becomes direct current comparatively stably LED is powered.The capacity of capacitor C 1 and C3 determines the size of current that LED is provided, and can use according to the watt level of LED the electric capacity of different capabilities, to reach desired volume.
The model of described integrated circuit (IC) 1 is LIS8510.
The parameter of described capacitor C 1 is 4.7uF, 400V, 105 DEG C.
The parameter of described capacitor C 3 is 100uF, 16V, 105 DEG C.
The use of this LED power IC IC1 has reduced the quantity that uses electronic component, has improved stability and the reliability of power supply, has simplified original LED power circuit, has simplified production process, enhances productivity.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection range.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection range of the present utility model.
Claims (4)
1. a simple and easy LED power supply, it is characterized in that: comprise resistance R 1, R2, R3, R4, capacitor C 1, C2, C3, bridge heap BR1, diode D5, integrated circuit (IC) 1 and transformer T1, the input of LED power supply connects alternating current, and the output of LED power supply connects LED lamp; The input of bridge heap BR1 connects alternating current, and one end of the bridge heap positive pole of BR1 and the positive pole of capacitor C 1, one end of resistance R 1 and the primary coil of transformer T1 is connected, and the negative pole of bridge heap BR1 connects negative pole the ground connection of capacitor C 1; One end of the other end contact resistance R2 of resistance R 1, the other end of resistance R 2 connects the VDO pin of integrated circuit (IC) 1 and the positive pole of capacitor C 2, the negative pole of capacitor C 2 connects GND pin the ground connection of integrated circuit (IC) 1, the other end of the primary coil of the DRA pin connection transformer T1 of integrated circuit (IC) 1; One end of the CS pin contact resistance R3 of integrated circuit (IC) 1, the other end ground connection of resistance R 3; One end of the secondary coil of transformer T1 connects the positive pole of diode D5, and the negative pole of diode D5 connects the positive pole of the output of one end of capacitor C 3 and one end of resistance R 4 and described LED power supply; The other end of the secondary coil of transformer T1 connects the negative pole of the output of the negative pole of capacitor C 3 and the other end of resistance R 4 and described LED power supply.
2. simple and easy LED power supply according to claim 1, is characterized in that: the model of described integrated circuit (IC) 1 is LIS8510.
3. simple and easy LED power supply according to claim 1, is characterized in that: the parameter of described capacitor C 1 is 4.7uF 400V, 105 DEG C.
4. simple and easy LED power supply according to claim 1, is characterized in that: the parameter of described capacitor C 3 is 100uF 16V, 105 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048107.9U CN203748064U (en) | 2014-01-24 | 2014-01-24 | Simple LED power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048107.9U CN203748064U (en) | 2014-01-24 | 2014-01-24 | Simple LED power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203748064U true CN203748064U (en) | 2014-07-30 |
Family
ID=51347810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420048107.9U Expired - Fee Related CN203748064U (en) | 2014-01-24 | 2014-01-24 | Simple LED power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203748064U (en) |
-
2014
- 2014-01-24 CN CN201420048107.9U patent/CN203748064U/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 |
Granted publication date: 20140730 Termination date: 20150124 |
|
| EXPY | Termination of patent right or utility model |