CN204993995U - LED power source - Google Patents
LED power source Download PDFInfo
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- CN204993995U CN204993995U CN201520706125.6U CN201520706125U CN204993995U CN 204993995 U CN204993995 U CN 204993995U CN 201520706125 U CN201520706125 U CN 201520706125U CN 204993995 U CN204993995 U CN 204993995U
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Abstract
The utility model belongs to power supply circuit, concretely relates to LED power source. Including transformer W, resistance R1, electric capacity C2 and relay J, the 220V line voltage is connected to transformer W's winding N1's one end, and the other end of 220V line voltage, transformer W's winding N2's one end connecting resistance R1, diode D6's negative pole, diode D7's positive pole, electric capacity C2 and electric capacity C3 are connected to transformer W's winding N1's the other end. The utility model discloses the LED power source circuit uses rectifier diode shunt capacitance's mode to carry out the rectification to the alternating current, can effectually prevent that electric wire netting high frequency signal and power frequency signal from producing the modulation on the diode, reduced the interference to can pass through the electric energy that LED was supplied to the battery behind the mains failure, consequently, the utility model has the advantages of stable performance, simple structure and function are various.
Description
Technical field
The utility model belongs to power circuit, is specifically related to a kind of LED power.
Background technology
LED is acknowledged as green forth generation light source, is a kind of solid cold light source, has the plurality of advantages such as efficient, life-span length, safety and environmental protection, volume are little, high reliability, fast response time.Reach same illuminating effect at present, the power consumption of LED is approximately 1/10 of incandescent lamp, 1/2 of fluorescent lamp, LED power circuit is concerning most important LED, current most of LED lamp still uses common Power supply, cannot normal power supply when running into powering-off state, and existing power supply many uses diode carries out rectification, and power grid high-frequency signal and power frequency component produce modulation on the diode, thus affect circuit.
Utility model content
The purpose of this utility model is to solve the problem proposed in above-mentioned background technology, and provides a kind of LED power.
For achieving the above object, the technical scheme that adopts of the utility model:
A kind of LED power, comprises transformer W, resistance R1, electric capacity C2 and relay J, one end of the winding N1 of described transformer W connects 220V line voltage, and the other end of the winding N1 of transformer W connects the other end of 220V line voltage, one end contact resistance R1 of the winding N2 of transformer W, the negative electrode of diode D6, the anode of diode D7, the other end of electric capacity C2 and electric capacity C3, resistance R1 connects the pin 1 of chip IC 1, and the pin 2 of chip IC 1 connects the negative electrode of diode D8, the anode of diode D9, electric capacity C4, the other end of the winding N2 of electric capacity C5 and transformer W, the pin 3 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode VT1 of resistance R2, the collector electrode of triode VT1 connects anode and the relay J of diode D3, the negative electrode contact resistance R3 of diode D3, electric capacity C1, the negative electrode of diode D7, the anode of diode D8, the other end of electric capacity C3, the other end of electric capacity C4, the pin 4 of chip IC 1, the pin 2 of the contact J-1 of relay J, the other end of resistance R3 connects the pin 3 of contact J-2 and the negative electrode of diode D5 of relay J, the pin 2 of the pin 3 contact resistance R4 of the contact J-1 of relay J and the contact J-2 of relay J, the pin 1 of the contact J-1 of relay J connects the positive pole of storage battery E, and the negative pole of storage battery E connects the negative electrode of diode D4, the anode of diode D5, the anode of diode D6, the negative electrode of diode D9, LED group H, the other end of electric capacity C1, the other end of electric capacity C2, the other end of electric capacity C5 and the emitter of triode VT1, the other end of resistance R4 connects the anode of diode D4, and the pin 1 of the contact J-2 of relay J connects the other end of LED group H.
As preferred version of the present utility model: described chip IC 1 is 4N25 optical coupler.
As preferred version of the present utility model: described diode D4 is light-emitting diode.
Compared with prior art, the beneficial effects of the utility model are: the utility model LED power circuit uses the mode of rectifier diode shunt capacitance to carry out rectification to alternating current, can effectively prevent power grid high-frequency signal and power frequency component from producing modulation on the diode, decrease interference, and the electric energy of LED can be supplied by storage battery after mains failure, therefore there is the advantage of the simple and diverse in function of stable performance, structure.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of LED power circuit.
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.
As Fig. 1, a kind of LED power of the present embodiment, comprises transformer W, resistance R1, electric capacity C2 and relay J, one end of the winding N1 of described transformer W connects 220V line voltage, and the other end of the winding N1 of transformer W connects the other end of 220V line voltage, one end contact resistance R1 of the winding N2 of transformer W, the negative electrode of diode D6, the anode of diode D7, the other end of electric capacity C2 and electric capacity C3, resistance R1 connects the pin 1 of chip IC 1, and the pin 2 of chip IC 1 connects the negative electrode of diode D8, the anode of diode D9, electric capacity C4, the other end of the winding N2 of electric capacity C5 and transformer W, the pin 3 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode VT1 of resistance R2, the collector electrode of triode VT1 connects anode and the relay J of diode D3, the negative electrode contact resistance R3 of diode D3, electric capacity C1, the negative electrode of diode D7, the anode of diode D8, the other end of electric capacity C3, the other end of electric capacity C4, the pin 4 of chip IC 1, the pin 2 of the contact J-1 of relay J, the other end of resistance R3 connects the pin 3 of contact J-2 and the negative electrode of diode D5 of relay J, the pin 2 of the pin 3 contact resistance R4 of the contact J-1 of relay J and the contact J-2 of relay J, the pin 1 of the contact J-1 of relay J connects the positive pole of storage battery E, and the negative pole of storage battery E connects the negative electrode of diode D4, the anode of diode D5, the anode of diode D6, the negative electrode of diode D9, LED group H, the other end of electric capacity C1, the other end of electric capacity C2, the other end of electric capacity C5 and the emitter of triode VT1, the other end of resistance R4 connects the anode of diode D4, and the pin 1 of the contact J-2 of relay J connects the other end of LED group H.
Chip IC 1 is 4N25 optical coupler.Diode D4 is light-emitting diode.
Operation principle of the present utility model is: 220V alternating voltage becomes galvanic current be directly added in the anti-interference rectifier bridge be made up of diode D1 ~ D4 and electric capacity C2 ~ C5 after the step-down of transformer W after, the mode of rectifier diode shunt capacitance carries out rectification to alternating current, can effectively prevent power grid high-frequency signal and power frequency component from producing modulation on the diode, increase the stability of circuit, when mains failure or meet accident power-off time, the light-emitting diode of optical coupler IC1 inside extinguishes, the transistor base illumination of its inside terminates, phototriode disconnects, the electric current of inflow VT1 base stage is interrupted thereupon, triode VT1 disconnects, so J discharges, 1 of the contact J-1 of relay J, 3 pin are connected, 1 of contact J-1, 2 pin are connected.Storage battery E continues to power to LED group H through contact J-1, J-2 of relay J, LED group H is unlikely and quits work because of commercial power interruption; Light-emitting diode D4 also will light through J-1 and R4 by E simultaneously, do storage battery power supply instruction.When city power recovery, automatically proceed to by mains-supplied again.
Claims (3)
1. a LED power, comprises transformer W, resistance R1, electric capacity C2 and relay J, is characterized in that, one end of the winding N1 of described transformer W connects 220V line voltage, and the other end of the winding N1 of transformer W connects the other end of 220V line voltage, one end contact resistance R1 of the winding N2 of transformer W, the negative electrode of diode D6, the anode of diode D7, the other end of electric capacity C2 and electric capacity C3, resistance R1 connects the pin 1 of chip IC 1, and the pin 2 of chip IC 1 connects the negative electrode of diode D8, the anode of diode D9, electric capacity C4, the other end of the winding N2 of electric capacity C5 and transformer W, the pin 3 contact resistance R2 of chip IC 1, the base stage of the other end connecting triode VT1 of resistance R2, the collector electrode of triode VT1 connects anode and the relay J of diode D3, the negative electrode contact resistance R3 of diode D3, electric capacity C1, the negative electrode of diode D7, the anode of diode D8, the other end of electric capacity C3, the other end of electric capacity C4, the pin 4 of chip IC 1, the pin 2 of the contact J-1 of relay J, the other end of resistance R3 connects the pin 3 of contact J-2 and the negative electrode of diode D5 of relay J, the pin 2 of the pin 3 contact resistance R4 of the contact J-1 of relay J and the contact J-2 of relay J, the pin 1 of the contact J-1 of relay J connects the positive pole of storage battery E, and the negative pole of storage battery E connects the negative electrode of diode D4, the anode of diode D5, the anode of diode D6, the negative electrode of diode D9, LED group H, the other end of electric capacity C1, the other end of electric capacity C2, the other end of electric capacity C5 and the emitter of triode VT1, the other end of resistance R4 connects the anode of diode D4, and the pin 1 of the contact J-2 of relay J connects the other end of LED group H.
2. a kind of LED power according to claim 1, is characterized in that, described chip IC 1 is 4N25 optical coupler.
3. a kind of LED power according to claim 1, is characterized in that, described diode D4 is light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706125.6U CN204993995U (en) | 2015-09-11 | 2015-09-11 | LED power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520706125.6U CN204993995U (en) | 2015-09-11 | 2015-09-11 | LED power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204993995U true CN204993995U (en) | 2016-01-20 |
Family
ID=55128311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520706125.6U Expired - Fee Related CN204993995U (en) | 2015-09-11 | 2015-09-11 | LED power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204993995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072783A (en) * | 2015-09-11 | 2015-11-18 | 吉春社 | LED power supply |
| CN106643158A (en) * | 2016-11-30 | 2017-05-10 | 陈东标 | Chemical engineering efficient heating furnace |
-
2015
- 2015-09-11 CN CN201520706125.6U patent/CN204993995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072783A (en) * | 2015-09-11 | 2015-11-18 | 吉春社 | LED power supply |
| CN105072783B (en) * | 2015-09-11 | 2017-08-25 | 厦门东昂光电科技有限公司 | A kind of LED power |
| CN106643158A (en) * | 2016-11-30 | 2017-05-10 | 陈东标 | Chemical engineering efficient heating furnace |
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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: 20160120 Termination date: 20160911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |