CN204350363U - A kind of LED spotlight control circuit - Google Patents
A kind of LED spotlight control circuit Download PDFInfo
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- CN204350363U CN204350363U CN201420768374.3U CN201420768374U CN204350363U CN 204350363 U CN204350363 U CN 204350363U CN 201420768374 U CN201420768374 U CN 201420768374U CN 204350363 U CN204350363 U CN 204350363U
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Abstract
The utility model discloses a kind of LED spotlight control circuit, comprise transformer T, resistance R1 ~ R9, bidirectional trigger diode DB, diode D1 ~ D11, triode Q1 ~ Q4, electrochemical capacitor C1 and C8, electric capacity C2 ~ C7, protective tube FU, light-emitting diode W1 ~ Wn and inductance L 1, there is circuit structure simple, easy to operate, safety and stability, the feature that the life-span is long.
Description
Technical field
The utility model relates to shot-light technical field, espespecially a kind of LED spotlight control circuit.
Background technology
Because the luminous element of LED is close to " point " light source, more for convenience, LED spotlight is exactly with the shot-light of light-emitting diode as light source to Design of Luminaires.Tradition shot-light many employings Halogen lamp LED, luminous efficiency is lower, compare power consumption, illuminated ambient temperature rises, useful life is short.LED light source is all far superior to traditional lighting light fixture in the aspect of principle of luminosity, energy-saving and environmental protection.And the one-way of LED luminescence defines the perfection support to shot-light luminous intensity distribution.
Summary of the invention
A kind of LED spotlight control circuit of the utility model, is characterized in that, provides a kind of working stability, circuit structure simple, easy to operate, practical LED spotlight control circuit.
To achieve these goals, technical solution of the present utility model is: a kind of LED spotlight control circuit comprises transformer T, resistance R1 ~ R9, bidirectional trigger diode DB, diode D1 ~ D11, triode Q1 ~ Q4, electrochemical capacitor C1 and C8, electric capacity C2 ~ C7, protective tube FU, light-emitting diode W1 ~ Wn and inductance L 1, the live wire L that the contact of diode D3 and D4 of the rectifier bridge that diode D1 ~ D4 forms connects power supply by protective tube FU holds, the zero line N that the contact of diode D1 and D2 connects power supply holds, the contact contact resistance R1 respectively of diode D1 and D3, electric capacity C6, the positive terminal of electrochemical capacitor C1 and the collector electrode of triode Q1, the other end contact resistance R2 respectively of resistance R1, electric capacity C2 and bidirectional trigger diode DB, the other end of bidirectional trigger diode DB meets electric capacity C4 respectively, the base stage of resistance R5 and triode Q2, the base stage of triode Q2 also connects the other end and the resistance R6 of electric capacity C4 by diode D11, the other end connection transformer T primary coil N3 of resistance R6, the contact contact resistance R3 respectively of triode Q1 emitter and triode Q2 collector electrode, transformer T primary coil N2 and secondary coil N1, the other end connecting resistance R4 of primary coil N2, the other end of secondary coil N1 connects the other end of electric capacity C5 and electric capacity C6 respectively, the base stage of the other end difference connecting triode Q1 of resistance R3, electric capacity C3, the base stage of triode Q1 also connects the other end of electric capacity C3 and the other end of resistance R4 respectively by diode D10, the emitter of triode Q2, the other end of resistance R2 and R5, the negative pole end of electrochemical capacitor C1, the other end of electric capacity C2 and C5 and the other end of transformer T primary coil N3 all connect the contact of diode D3 and D4, the contact of D5 and D7 of the rectifier bridge that diode D5 ~ D8 forms, the contact of D6 and D8 connects the two ends of the secondary coil N4 of transformer T respectively, the contact contact resistance R7 respectively of diode D5 and D6, the negative pole end of diode D9 and the positive terminal of electrochemical capacitor C8, and be connected in series successively light-emitting diode W1 ~ Wn(n be not less than 2 integer) and inductance L 1, the other end of inductance L 1 connects electric capacity C7 respectively, the collector electrode of triode Q3 and the positive terminal of diode D9, the other end base stage of connecting triode Q3 and the collector electrode of triode Q4 respectively of resistance R7, the base stage of the other end difference connecting triode Q4 of electric capacity C7 and resistance R8, the emitter of the other end difference connecting triode Q3 of resistance R8 and resistance R9, the negative pole end of electrochemical capacitor C8, the other end of resistance R9 and the emitter of triode Q4 all connect the contact of diode D7 and D8.
Feature of the present utility model and beneficial effect are: switch on power, diode D1 ~ D4 form rectifier bridge rectification and electrochemical capacitor C1 filtering after, through resistance R2, electric capacity C2 is charged, after electric capacity C2 both end voltage is elevated to the breakover voltage of bidirectional trigger diode DB, bidirectional trigger diode DB triggering and conducting, electric capacity C2 discharges to the base stage of triode Q2 through bidirectional trigger diode DB, turn-on transistor Q2, the induced potential that triode Q2 is produced at primary coil N2 and N3 two ends by the secondary coil N1 of transformer T, when transformer T magnetic flux reaches capacity, the base potential of triode Q2 declines, the base potential of triode Q1 rises, triode Q2 becomes cut-off from conducting, and triode Q1 becomes conducting from cut-off, triode Q1 by the secondary coil N1 of transformer T at the primary coil N2 induced potential contrary with N3 two ends polarization, when transformer T magnetic flux reaches capacity, the base potential of triode Q1 declines, the base potential of triode Q2 rises, triode Q1 becomes cut-off from conducting, and triode Q2 becomes conducting from cut-off, so go round and begin again, triode Q1 and Q2 conducting in turn, to make between the secondary coil N1 of transformer T and primary coil N4 constantly induced electromotive force, carry out transformation, after the rectifier bridge rectification and electrochemical capacitor C8 filtering of diode D5 ~ D8 composition, and through triode Q3 and Q4 and peripheral components electric capacity C7 thereof, diode D9, the constant-current circuit that inductance L 1 and resistance R7 ~ R9 form, triggering is carried out to light-emitting diode W1 ~ Wn luminous.There is circuit structure simple, easy to operate, safety and stability, the feature that the life-span is long.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing is circuit theory diagrams of the present utility model.
Embodiment
Shown in accompanying drawing, a kind of LED spotlight control circuit comprises transformer T, resistance R1 ~ R9, bidirectional trigger diode DB, diode D1 ~ D11, triode Q1 ~ Q4, electrochemical capacitor C1 and C8, electric capacity C2 ~ C7, protective tube FU, light-emitting diode W1 ~ Wn and inductance L 1, the live wire L that the contact of diode D3 and D4 of the rectifier bridge that diode D1 ~ D4 forms connects power supply by protective tube FU holds, the zero line N that the contact of diode D1 and D2 connects power supply holds, the contact contact resistance R1 respectively of diode D1 and D3, electric capacity C6, the positive terminal of electrochemical capacitor C1 and the collector electrode of triode Q1, the other end contact resistance R2 respectively of resistance R1, electric capacity C2 and bidirectional trigger diode DB, the other end of bidirectional trigger diode DB meets electric capacity C4 respectively, the base stage of resistance R5 and triode Q2, the base stage of triode Q2 also connects the other end and the resistance R6 of electric capacity C4 by diode D11, the other end connection transformer T primary coil N3 of resistance R6, the contact contact resistance R3 respectively of triode Q1 emitter and triode Q2 collector electrode, transformer T primary coil N2 and secondary coil N1, the other end connecting resistance R4 of primary coil N2, the other end of primary coil N1 connects the other end of electric capacity C5 and electric capacity C6 respectively, the base stage of the other end difference connecting triode Q1 of resistance R3, electric capacity C3, the base stage of triode Q1 also connects the other end of electric capacity C3 and the other end of resistance R4 respectively by diode D10, the emitter of triode Q2, the other end of resistance R2 and R5, the negative pole end of electrochemical capacitor C1, the other end of electric capacity C2 and C5 and the other end of transformer T primary coil N3 all connect the contact of diode D3 and D4, the contact of D5 and D7 of the rectifier bridge that diode D5 ~ D8 forms, the contact of D6 and D8 connects the two ends of the secondary coil N4 of transformer T respectively, the contact contact resistance R7 respectively of diode D5 and D6, the negative pole end of diode D9 and the positive terminal of electrochemical capacitor C8, and be connected in series successively light-emitting diode W1 ~ Wn(n be not less than 2 integer) and inductance L 1, the other end of inductance L 1 connects electric capacity C7 respectively, the collector electrode of triode Q3 and the positive terminal of diode D9, the other end base stage of connecting triode Q3 and the collector electrode of triode Q4 respectively of resistance R7, the base stage of the other end difference connecting triode Q4 of electric capacity C7 and resistance R8, the emitter of the other end difference connecting triode Q3 of resistance R8 and resistance R9, the negative pole end of electrochemical capacitor C8, the other end of resistance R9 and the emitter of triode Q4 all connect the contact of diode D7 and D8.
During use, switch on power, diode D1 ~ D4 form rectifier bridge rectification and electrochemical capacitor C1 filtering after, through resistance R2, electric capacity C2 is charged, after electric capacity C2 both end voltage is elevated to the breakover voltage of bidirectional trigger diode DB, bidirectional trigger diode DB triggering and conducting, electric capacity C2 discharges to the base stage of triode Q2 through bidirectional trigger diode DB, turn-on transistor Q2, the induced potential that triode Q2 is produced at primary coil N2 and N3 two ends by the secondary coil N1 of transformer T, when transformer T magnetic flux reaches capacity, the base potential of triode Q2 declines, the base potential of triode Q1 rises, triode Q2 becomes cut-off from conducting, and triode Q1 becomes conducting from cut-off, triode Q1 by the secondary coil N1 of transformer T at the primary coil N2 induced potential contrary with N3 two ends polarization, when transformer T magnetic flux reaches capacity, the base potential of triode Q1 declines, the base potential of triode Q2 rises, triode Q1 becomes cut-off from conducting, and triode Q2 becomes conducting from cut-off, so go round and begin again, triode Q1 and Q2 conducting in turn, to make between the secondary coil N1 of transformer T and primary coil N4 constantly induced electromotive force, carry out transformation, after the rectifier bridge rectification and electrochemical capacitor C8 filtering of diode D5 ~ D8 composition, and through triode Q3 and Q4 and peripheral components electric capacity C7 thereof, diode D9, the constant-current circuit that inductance L 1 and resistance R7 ~ R9 form, triggering is carried out to light-emitting diode W1 ~ Wn luminous.There is circuit structure simple, easy to operate, safety and stability, the feature that the life-span is long.
the above; execution mode is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite of spirit not departing from the utility model technology; the various distortion that this area engineers and technicians make the technical solution of the utility model and improvement, all should fall in protection range that claims of the present utility model determine.
Claims (1)
1. a LED spotlight control circuit, is characterized in that: described LED spotlight control circuit comprises transformer T, resistance R1 ~ R9, bidirectional trigger diode DB, diode D1 ~ D11, triode Q1 ~ Q4, electrochemical capacitor C1 and C8, electric capacity C2 ~ C7, protective tube FU, light-emitting diode W1 ~ Wn and inductance L 1, the live wire L that the contact of diode D3 and D4 of the rectifier bridge that diode D1 ~ D4 forms connects power supply by protective tube FU holds, the zero line N that the contact of diode D1 and D2 connects power supply holds, the contact contact resistance R1 respectively of diode D1 and D3, electric capacity C6, the positive terminal of electrochemical capacitor C1 and the collector electrode of triode Q1, the other end contact resistance R2 respectively of resistance R1, electric capacity C2 and bidirectional trigger diode DB, the other end of bidirectional trigger diode DB meets electric capacity C4 respectively, the base stage of resistance R5 and triode Q2, the base stage of triode Q2 also connects the other end and the resistance R6 of electric capacity C4 by diode D11, the other end connection transformer T primary coil N3 of resistance R6, the contact contact resistance R3 respectively of triode Q1 emitter and triode Q2 collector electrode, transformer T primary coil N2 and secondary coil N1, the other end connecting resistance R4 of primary coil N2, the other end of secondary coil N1 connects the other end of electric capacity C5 and electric capacity C6 respectively, the base stage of the other end difference connecting triode Q1 of resistance R3, electric capacity C3, the base stage of triode Q1 also connects the other end of electric capacity C3 and the other end of resistance R4 respectively by diode D10, the emitter of triode Q2, the other end of resistance R2 and R5, the negative pole end of electrochemical capacitor C1, the other end of electric capacity C2 and C5 and the other end of transformer T primary coil N3 all connect the contact of diode D3 and D4, the contact of D5 and D7 of the rectifier bridge that diode D5 ~ D8 forms, the contact of D6 and D8 connects the two ends of the secondary coil N4 of transformer T respectively, the contact contact resistance R7 respectively of diode D5 and D6, the negative pole end of diode D9 and the positive terminal of electrochemical capacitor C8, and be connected in series light-emitting diode W1 ~ Wn and inductance L 1 successively, n be not less than 2 integer, the other end of inductance L 1 connects electric capacity C7 respectively, the collector electrode of triode Q3 and the positive terminal of diode D9, the other end base stage of connecting triode Q3 and the collector electrode of triode Q4 respectively of resistance R7, the base stage of the other end difference connecting triode Q4 of electric capacity C7 and resistance R8, the emitter of the other end difference connecting triode Q3 of resistance R8 and resistance R9, the negative pole end of electrochemical capacitor C8, the other end of resistance R9 and the emitter of triode Q4 all connect the contact of diode D7 and D8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768374.3U CN204350363U (en) | 2014-12-09 | 2014-12-09 | A kind of LED spotlight control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768374.3U CN204350363U (en) | 2014-12-09 | 2014-12-09 | A kind of LED spotlight control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204350363U true CN204350363U (en) | 2015-05-20 |
Family
ID=53233600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420768374.3U Expired - Fee Related CN204350363U (en) | 2014-12-09 | 2014-12-09 | A kind of LED spotlight control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204350363U (en) |
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2014
- 2014-12-09 CN CN201420768374.3U patent/CN204350363U/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: 20150520 Termination date: 20151209 |
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| EXPY | Termination of patent right or utility model |