CN105072783B - A kind of LED power - Google Patents

A kind of LED power Download PDF

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Publication number
CN105072783B
CN105072783B CN201510579795.0A CN201510579795A CN105072783B CN 105072783 B CN105072783 B CN 105072783B CN 201510579795 A CN201510579795 A CN 201510579795A CN 105072783 B CN105072783 B CN 105072783B
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diode
electric capacity
pin
connection
resistance
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CN105072783A (en
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庄俊辉
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Xiamen Dongang Technology Co.,Ltd.
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Xiamen Dongang Electronic Ltd
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Abstract

The invention belongs to power circuit, and in particular to a kind of LED power.Including transformer W, resistance R1, electric capacity C2 and relay J, the winding N1 of transformer W one end connection 220V line voltages, the transformer W winding N1 other end connects the other end of 220V line voltages, transformer W winding N2 one end connection resistance R1, diode D6 negative electrode, diode D7 anode, electric capacity C2 and electric capacity C3.LED power circuit of the present invention carries out rectification using the mode of commutation diode shunt capacitance to alternating current, it can effectively prevent power grid high-frequency signal and power frequency component from producing modulation on the diode, reduce interference, and LED electric energy can be supplied by battery after mains failure, therefore, the present invention has the advantages that performance is stable, simple in construction and vdiverse in function.

Description

A kind of LED power
Technical field
The invention belongs to power circuit, and in particular to a kind of LED power.
Background technology
LED is acknowledged as the forth generation light source of green, is a kind of solid cold light source, with efficient, long lifespan, safety collar Many advantages, such as guarantor, small volume, high reliability, fast response time.Same illuminating effect is reached at present, and LED power consumption is big It is approximately the 1/10 of incandescent lamp, the 1/2 of fluorescent lamp, LED power circuit is most important for LED, and major part LED lamp is still at present So powered using common power supply, when running into powering-off state can not normal power supply, and entered more than existing power supply using diode Row rectification, and power grid high-frequency signal and power frequency component produce modulation on the diode, so as to influence circuit.
The content of the invention
The problem of it is an object of the invention to solve to propose in above-mentioned background technology, and a kind of LED power is provided.
To achieve the above object, the technical solution adopted in the present invention:
A kind of LED power, including transformer W, resistance R1, electric capacity C2 and relay J, the winding N1's of the transformer W One end connects 220V line voltages, and the transformer W winding N1 other end connects the other end of 220V line voltages, transformer W Winding N2 one end connection resistance R1, diode D6 negative electrode, diode D7 anode, electric capacity C2 and electric capacity C3, resistance R1 The other end connect the pin 1 of chip IC 1, the connection of the pin 2 diode D8 of chip IC 1 negative electrode, diode D9 anode, electricity Hold C4, electric capacity C5 and transformer W winding the N2 other end, the connection resistance R2 of pin 3 of chip IC 1, the resistance R2 other end Connecting triode VT1 base stage, triode VT1 colelctor electrode connection diode D3 anode and relay J, diode D3 the moon Pole connection resistance R3, electric capacity C1, diode D7 negative electrode, diode D8 anode, the electric capacity C3 other end, electric capacity C4 it is another End, the pin 4 of chip IC 1, relay J contact J-1 pin 2, resistance R3 other end connection relay J contact J-2's The negative electrode of pin 3 and diode D5, the relay J contact J-1 connection of pin 3 resistance R4 and relay J contact J-2 pin 2, after The electrical equipment J contact J-1 connection battery of pin 1 E positive pole, battery E negative pole connection diode D4 negative electrode, diode D5 Anode, diode D6 anode, diode D9 negative electrode, LED light group H, the electric capacity C1 other end, the electric capacity C2 other end, The electric capacity C5 other end and triode VT1 emitter stage, resistance R4 other end connection diode D4 anode, relay J's The contact J-2 connection LED light group of the pin 1 H other end;The electric capacity C2 is in parallel with diode D6, and electric capacity C3 and diode D7 is simultaneously Connection, electric capacity C4 is in parallel with diode D8, and electric capacity C5 is in parallel with diode D9;The chip IC 1 is photo-coupler.
It is used as the preferred scheme of the present invention:The chip IC 1 is 4N25 photo-couplers.
It is used as the preferred scheme of the present invention:The diode D4 is light emitting diode.
Compared with prior art, the beneficial effects of the invention are as follows:LED power circuit of the present invention is in parallel using commutation diode The mode of electric capacity carries out rectification to alternating current, can effectively prevent power grid high-frequency signal and power frequency component from producing on the diode Modulation, reduces interference, and can supply after mains failure LED electric energy by battery, thus with performance stably, Advantage simple in construction and vdiverse in function.
Brief description of the drawings
Fig. 1 is the circuit diagram of LED power circuit.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Such as Fig. 1, a kind of LED power of the present embodiment, including transformer W, resistance R1, electric capacity C2 and relay J, the transformation Device W winding N1 one end connection 220V line voltages, the transformer W winding N1 other end connects the another of 220V line voltages One end, transformer W winding N2 one end connection resistance R1, diode D6 negative electrode, diode D7 anode, electric capacity C2 and electricity Hold C3, the resistance R1 other end connects the pin 1 of chip IC 1, the connection diode of pin 2 D8 of chip IC 1 negative electrode, diode D9 anode, electric capacity C4, electric capacity C5 and transformer W winding the N2 other end, the connection resistance R2 of pin 3 of chip IC 1, resistance R2 other end connecting triode VT1 base stage, triode VT1 colelctor electrode connection diode D3 anode and relay J, two Pole pipe D3 negative electrode connection resistance R3, electric capacity C1, diode D7 negative electrode, diode D8 anode, the electric capacity C3 other end, electricity Hold the C4 other end, the pin 4 of chip IC 1, relay J contact J-1 pin 2, resistance R3 other end connection relay J's Contact J-2 pin 3 and diode D5 negative electrode, relay J contact J-1 pin 3 connect resistance R4 and relay J contact J- 2 pin 2, the relay J contact J-1 connection battery of pin 1 E positive pole, battery E negative pole connection diode D4 the moon Pole, diode D5 anode, diode D6 anode, diode D9 negative electrode, LED light group H, the electric capacity C1 other end, electric capacity The emitter stage of the C2 other end, the electric capacity C5 other end and triode VT1, resistance R4 other end connection diode D4 sun Pole, the relay J contact J-2 connection LED light group of the pin 1 H other end;The electric capacity C2 is in parallel with diode D6, electric capacity C3 In parallel with diode D7, electric capacity C4 is in parallel with diode D8, and electric capacity C5 is in parallel with diode D9;The chip IC 1 is optical coupling Device.
The chip IC 1 is 4N25 photo-couplers.Diode D4 is light emitting diode.
The present invention operation principle be:220V alternating voltages are applied directly to after transformer W decompression by diode D1 Become galvanic current, the mode of commutation diode shunt capacitance after the anti-interference rectifier bridge of~D4 and electric capacity C2~C5 compositions Rectification is carried out to alternating current, can effectively prevent power grid high-frequency signal and power frequency component from producing modulation on the diode, is increased The stability of circuit, when mains failure or when occurring accident power-off, the light emitting diode inside photo-coupler IC1 extinguishes, in it The transistor base illumination in portion terminates, and phototriode disconnects, and the electric current of inflow VT1 base stages is interrupted therewith, and triode VT1 breaks Open, then J discharges, relay J contact J-1 1,3 pin are connected, contact J-2 1,2 pin are connected.Battery E is through relay J Contact J-1, J-2 continue to power to LED light group H, make LED light group H be not to be stopped because of commercial power interruption;While E is also Light emitting diode D4 will be lighted by J-1 and R4, and make storage battery power supply instruction.It is transferred to when city power recovery, and automatically by city Electricity power supply.

Claims (3)

1. a kind of LED power, including transformer W, resistance R1, electric capacity C2 and relay J, it is characterised in that the transformer W's Winding N1 one end connection 220V line voltages, the transformer W winding N1 other end connects the other end of 220V line voltages, Transformer W winding N2 one end connection resistance R1, diode D6 negative electrode, diode D7 anode, electric capacity C2 and electric capacity C3, The resistance R1 other end connects the pin 1 of chip IC 1, the connection diode of pin 2 D8 of chip IC 1 negative electrode, diode D9 Anode, electric capacity C4, electric capacity C5 and transformer W winding the N2 other end, the connection resistance R2 of pin 3 of chip IC 1, resistance R2's Other end connecting triode VT1 base stage, triode VT1 colelctor electrode connection diode D3 anode and relay J, diode D3 negative electrode connection resistance R3, electric capacity C1, diode D7 negative electrode, diode D8 anode, the electric capacity C3 other end, electric capacity C4 The other end, the pin 4 of chip IC 1, relay J contact J-1 pin 2, resistance R3 other end connection relay J contact J-2 pin 3 and diode D5 negative electrode, the relay J contact J-1 connection of pin 3 resistance R4 and relay J contact J-2's Pin 2, the relay J contact J-1 connection battery of pin 1 E positive pole, battery E negative pole connection diode D4 negative electrode, two Pole pipe D5 anode, diode D6 anode, diode D9 negative electrode, LED light group H, the electric capacity C1 other end, electric capacity C2 it is another The emitter stage of one end, the electric capacity C5 other end and triode VT1, resistance R4 other end connection diode D4 anode, relay The device J contact J-2 connection LED light group of the pin 1 H other end;The electric capacity C2 is in parallel with diode D6, electric capacity C3 and diode D7 is in parallel, and electric capacity C4 is in parallel with diode D8, and electric capacity C5 is in parallel with diode D9;The chip IC 1 is photo-coupler.
2. a kind of LED power according to claim 1, it is characterised in that the chip IC 1 is 4N25 photo-couplers.
3. a kind of LED power according to claim 1, it is characterised in that the diode D4 is light emitting diode.
CN201510579795.0A 2015-09-11 2015-09-11 A kind of LED power Active CN105072783B (en)

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Publication number Priority date Publication date Assignee Title
CN106793422A (en) * 2017-02-09 2017-05-31 中山自信照明科技有限公司 Emergency lighting circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633716A (en) * 2012-08-22 2014-03-12 林燕祺 Automatic- power off charger circuit
CN204361777U (en) * 2015-01-28 2015-05-27 山东科技大学 A kind of uninterrupted power supply device for network base station
CN204993995U (en) * 2015-09-11 2016-01-20 吉春社 LED power source

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101031496B1 (en) * 2008-11-12 2011-04-29 효성전기공업 주식회사 Guidance lamp lighting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103633716A (en) * 2012-08-22 2014-03-12 林燕祺 Automatic- power off charger circuit
CN204361777U (en) * 2015-01-28 2015-05-27 山东科技大学 A kind of uninterrupted power supply device for network base station
CN204993995U (en) * 2015-09-11 2016-01-20 吉春社 LED power source

Non-Patent Citations (1)

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Title
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Inventor after: Zhuang Junhui

Inventor before: Ji Chunshe

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Effective date of registration: 20170721

Address after: 361021 No. 96-100, Liantang Road, Jimei District, Fujian, Xiamen

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Address before: Xi Ye Village Sixth District Dong Ye Zhen Yangcheng County in Shanxi province 048000 Jincheng City No. 15

Applicant before: Ji Chunshe

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Address after: 361012 No. 100, Liantang Road, Jimei District, Xiamen City, Fujian Province

Patentee after: Xiamen dong'ang Photoelectric Technology Co., Ltd

Address before: 361021 No. 96-100, Liantang Road, Jimei District, Fujian, Xiamen

Patentee before: XIAMEN DONGANG ELECTRONIC LIMITED

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Address after: 361012 No.100 Liantang Road, Jimei District, Xiamen City, Fujian Province

Patentee after: Xiamen Dongang Technology Co.,Ltd.

Address before: 361012 No.100 Liantang Road, Jimei District, Xiamen City, Fujian Province

Patentee before: Xiamen dong'ang Photoelectric Technology Co.,Ltd.

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