CN203015228U - T5 straight tube LED lamp driver - Google Patents
T5 straight tube LED lamp driver Download PDFInfo
- Publication number
- CN203015228U CN203015228U CN 201220738722 CN201220738722U CN203015228U CN 203015228 U CN203015228 U CN 203015228U CN 201220738722 CN201220738722 CN 201220738722 CN 201220738722 U CN201220738722 U CN 201220738722U CN 203015228 U CN203015228 U CN 203015228U
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- led lamp
- lamp group
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- diode
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Abstract
The utility model relates to a T5 straight tube LED lamp driver comprising input terminals connected with commercial power, linear constant current sources, and a load LED lamp group. An anti-surge resistor R1 is parallely connected between the input terminals, and two linear constant current sources are symmetrically respectively disposed on two ends of the lamp tube. An input first terminal is connected with a first linear constant current source by a positive terminal and a negative terminal of a diode D2, and an output of the first linear constant current source is connected with a positive terminal of the LED lamp group, in addition, a negative terminal of the LED lamp group is connected with an input second end by a positive terminal and a negative terminal of a diode D4 to form a circuit. The input second end is connected with a second linear constant current source by the positive terminal and the negative terminal of the diode D2, and an output of the second linear constant current source is connected with the positive terminal of an LED lamp group. The negative terminal of the LED lamp group is connected with the input first terminal by a positive terminal and a negative terminal of a diode D1. In the utility model, the driver adopts the dual-drive combination, and the two linear constant current circuits are separately disposed on two ends of the lamp tube, and can work alternatively for the power supply of the LED lamp group, therefore the heat sources can be dispersed, and the heat of the power elements can be reduced.
Description
Technical field:
The utility model belongs to electrical field, particularly a kind of driver that adopts the T5 straight tube LED lamp of two driving combinational circuits.
Background technology:
In order to realize interchangeable type light source, the caliber of T5 straight tube light fixture is too little, and the large components and parts of can't packing into can only adopt the pattern of transless, no electrolytic capacitor.Usually adopt linear constant-current drive circuit, the power consumption that drives on power component because of linear constant current is larger, cause the local pyrexia of fluorescent tube serious, the operating ambient temperature of the LED lamp pearl of close power supply is high, directly affects efficient and the life-span of power supply, also has a strong impact on light efficiency and the useful life thereof of lamp pearl simultaneously, after long-time the use, the lamp pearly-lustre of whole fluorescent tube declines and differs greatly, and the one end brightness of visual sense feeling fluorescent tube is high, and an end brightness is low.Temperature is too high also exists the danger that may damage the user.
The type of drive of Linear CCS under extraneous surge thunderbolt impact condition, is easily damaged components and parts.Because the restriction of electric current and voltage is all to realize at constant-current circuit, the high pressure of surge thunderbolt is all controlled at this, and the short time power consumption that single components and parts bear is too large, easily damage.
Summary of the invention:
The purpose of this utility model is that design a kind of employing two linear constant current circuit are divided and stood in lamp tube ends, the T5 straight tube LED lamp driver of alternation.
Technical solutions of the utility model are achieved in that a kind of T5 straight tube LED lamp driver, comprise the input first end and input the second end that access civil power, Linear CCS and load LED lamp group, input first end and inputting between the second end and be connected to primary antibodie surge resistance R1, it is characterized in that Linear CCS is two symmetric designs, divide the two ends that stand in fluorescent tube; The input first end is through diode D3 forward end, negative sense termination First Line constant-current source, and the first Linear CCS output connects LED lamp group forward end, and LED lamp group negative end consists of the loop through diode D4 forward end, negative sense termination input the second end; Input the second end through diode D2 forward end, negative sense termination the second Linear CCS, the second Linear CCS output connects LED lamp group forward end, and LED lamp group negative end consists of the loop through diode D1 forward end, negative sense termination input first end.
Described the first Linear CCS forms multiple tube by triode Q3, Q4, triode Q3 base stage and inter-collector are serially connected with resistance R 4, the collector electrode of triode Q3, Q4 connects the negative end of diode D3 and connect common port after capacitor C 2, triode Q4 emitter connects LED lamp group forward end through resistance R 5, triode Q3 base stage is through diode D6 forward end, negative end, voltage stabilizing didoe D12 negative end, forward termination LED lamp group anode; The second Linear CCS forms multiple tube by triode Q1, Q2, triode Q1 base stage and inter-collector are serially connected with resistance R 2, the collector electrode of triode Q1, Q2 connects the negative end of diode D2 and connect common port after capacitor C 1, triode Q2 emitter connects LED lamp group forward end through resistance R 3, triode Q1 base stage is connected to diode D5 forward end, negative end, and voltage stabilizing didoe D11 negative end, forward termination connect LED lamp group forward end.
Drive circuit of the present utility model adopts two the driving to make up, and separately design is at the two ends of fluorescent tube with two linear constant current circuit, and alternation is the power supply of LED lamp group jointly, minute source of heat release, and the heat of reduction power component realizes that whole lamp luminescence is even, and is stable; Do not adopt electrochemical capacitor in circuit, reliability is high again, and the life-span is long; Without large capacity capacitive and perceptual components and parts, power factor is high; Adopt linear constant current unit, can realize light modulation.
Description of drawings:
Below in conjunction with concrete legend, the utility model is described further:
Fig. 1 T5 straight tube LED lamp driver
Embodiment:
With reference to Fig. 1, T5 straight tube LED lamp driver, comprise the input first end and input the second end that access civil power, Linear CCS and load LED lamp group, input first end and inputting between the second end and be connected to primary antibodie surge resistance R1, wherein Linear CCS is two symmetric designs, divides the two ends that stand in fluorescent tube; The first Linear CCS forms multiple tube by triode Q3, Q4, triode Q3 base stage and inter-collector are serially connected with resistance R 4, the collector electrode of triode Q3, Q4 connects the negative end of diode D3 and connect common port after capacitor C 2, triode Q4 emitter connects LED lamp group forward end through resistance R 5, triode Q3 base stage is through diode D6 forward end, negative end, voltage stabilizing didoe D12 negative end, forward termination LED lamp group anode; The second Linear CCS forms multiple tube by triode Q1, Q2, triode Q1 base stage and inter-collector are serially connected with resistance R 2, the collector electrode of triode Q1, Q2 connects the negative end of diode D2 and connect common port after capacitor C 1, triode Q2 emitter connects LED lamp group forward end through resistance R 3, triode Q1 base stage is connected to diode D5 forward end, negative end, and voltage stabilizing didoe D11 negative end, forward termination connect LED lamp group forward end.
Claims (2)
1. T5 straight tube LED lamp driver, comprise the input first end and input the second end that access civil power, Linear CCS and load LED lamp group, input first end and inputting between the second end and be connected to primary antibodie surge resistance R1, it is characterized in that Linear CCS is two symmetric designs, divide the two ends that stand in fluorescent tube; The input first end is through diode D3 forward end, negative sense termination First Line constant-current source, and the first Linear CCS output connects LED lamp group forward end, and LED lamp group negative end consists of the loop through diode D4 forward end, negative sense termination input the second end; Input the second end through diode D2 forward end, negative sense termination the second Linear CCS, the second Linear CCS output connects LED lamp group forward end, and LED lamp group negative end consists of the loop through diode D1 forward end, negative sense termination input first end.
2. a kind of T5 straight tube LED lamp driver according to claim 1, it is characterized in that the first Linear CCS forms multiple tube by triode Q3, Q4, triode Q3 base stage and inter-collector are serially connected with resistance R 4, the collector electrode of triode Q3, Q4 connects the negative end of diode D3 and connect common port after capacitor C 2, triode Q4 emitter connects LED lamp group forward end through resistance R 5, triode Q3 base stage is through diode D6 forward end, negative end, voltage stabilizing didoe D12 negative end, forward termination LED lamp group anode; The second Linear CCS forms multiple tube by triode Q1, Q2, triode Q1 base stage and inter-collector are serially connected with resistance R 2, the collector electrode of triode Q1, Q2 connects the negative end of diode D2 and connect common port after capacitor C 1, triode Q2 emitter connects LED lamp group forward end through resistance R 3, triode Q1 base stage is connected to diode D5 forward end, negative end, and voltage stabilizing didoe D11 negative end, forward termination connect LED lamp group forward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738722 CN203015228U (en) | 2012-12-28 | 2012-12-28 | T5 straight tube LED lamp driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220738722 CN203015228U (en) | 2012-12-28 | 2012-12-28 | T5 straight tube LED lamp driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203015228U true CN203015228U (en) | 2013-06-19 |
Family
ID=48606779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220738722 Expired - Fee Related CN203015228U (en) | 2012-12-28 | 2012-12-28 | T5 straight tube LED lamp driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203015228U (en) |
-
2012
- 2012-12-28 CN CN 201220738722 patent/CN203015228U/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: 20130619 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |