CN204350378U - A kind of LED of energy extinguish fast - Google Patents
A kind of LED of energy extinguish fast Download PDFInfo
- Publication number
- CN204350378U CN204350378U CN201420858838.XU CN201420858838U CN204350378U CN 204350378 U CN204350378 U CN 204350378U CN 201420858838 U CN201420858838 U CN 201420858838U CN 204350378 U CN204350378 U CN 204350378U
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- current
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- limiting resistance
- triode
- filtering
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- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 3
- 238000004804 winding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 241000254158 Lampyridae Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Led Devices (AREA)
Abstract
The utility model discloses a kind of can the LED of extinguish fast, it is characterized in that, transformer one end connects VCC IN, another termination current-limiting resistance R1, meets rectifier diode D2, and side is connected with the transformer other end after connecing the filtering of filter capacitor C1 either shallow, formation loop; The rectifier diode D2 other end is connected with current-limiting resistance R2, and side meets voltage stabilizing didoe D2, then meets current-limiting resistance R3, ground connection after other connecting resistance R4; And be connected with the b pole of triode Q1 after the filtering of filter capacitor C2 either shallow, the E pole of triode Q1 is connected rear ground connection with current-limiting resistance R5, the C pole of triode Q1 is connected with the b pole of triode Q2 after electric capacity C3 filtering after filtering, be connected with main power source positive pole by current-limiting resistance R6 simultaneously, loop ground connection, connected by current-limiting resistance R7, the E pole ground connection of triode Q2.This programme with regard to star t-up discharge circuit in switch circuit breaking moment, bleeds off the electricity of rear class capacitance stores fast, reaches effect of turning off the light fast, the long-life advantage of energy effective guarantee LED, energy savings.
Description
Technical field
The utility model relates to a kind of lighting apparatus, particularly relates to a kind of LED.
Background technology
At present, LED illumination driving power rear class used exports all has filter capacitor, still store sizable electricity when turning off in electric capacity thus cause lantern festival to occur remaining bright phenomenon is slowly extinguished, is an individual bad phenomenon for some top grades with lamp environment.Therefore a kind of LED of energy extinguish fast is needed.
Utility model content
The purpose of this utility model is to solve prior art problem, provides a kind of LED of energy extinguish fast.
For achieving the above object, the technical solution of the utility model is as follows:
Can the LED of extinguish fast, transformer one end connects VCC IN, another termination current-limiting resistance R1, meets rectifier diode D2, and side is connected with the transformer other end after connecing the filtering of filter capacitor C1 either shallow, formation loop; The rectifier diode D2 other end is connected with current-limiting resistance R2, and side meets voltage stabilizing didoe D2, then meets current-limiting resistance R3, ground connection after other connecting resistance R4; And be connected with the b pole of triode Q1 after the filtering of filter capacitor C2 either shallow, the E pole of triode Q1 is connected rear ground connection with current-limiting resistance R5, the C pole of triode Q1 is connected with the b pole of triode Q2 after electric capacity C3 filtering after filtering, be connected with main power source positive pole by current-limiting resistance R6 simultaneously, loop ground connection, connected by current-limiting resistance R7, the E pole ground connection of triode Q2.
Preferably, also comprising transformer secondary output increases a little winding TV1, and transformer assists winding TV1 to power, and detects auxiliary winding voltage.
Preferably, circuit powered on moment pins discharge resistance loop does not affect major loop VCC and normally works.
Preferably, detect auxiliary winding power-off, switch to main circuit VCC immediately and power, star t-up discharge resistance is released the electricity of capacitance stores simultaneously.
Preferably, discharge resistance is complete for electric capacity tele-release on major loop to below 0.7V cut-off electric discharge, and whole discharge process terminates.
The utility model scheme switch circuit breaking moment with regard to star t-up discharge circuit, the electricity of rear class capacitance stores is bled off fast, reaches effect of turning off the light fast, eliminate the remaining light occurring as fragmentary firefly after turning off the light night, can effective guarantee LED long-life advantage, save the energy.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described further.
As shown in Figure 1, the LED of the utility model embodiment energy extinguish fast, first transformer is at the many little winding TV1 of secondary increase, whole turn off the light circuit time by this little winding power work, little winding TV1 and main circuit winding ground wire altogether, other end map interlinking 1 VCC IN.After current-limiting resistance R1 1.5K, rectifier diode D1 IN4007 rectification, by the filtering of filter capacitor C1 1uf either shallow, powered to rectifier diode D2 2.5V by current-limiting resistance R2 2.2K current limliting again, rectifier diode forms a stable voltage source voltage stabilization at 2.5V, be connected over the ground with current-limiting resistance R4 10K by current-limiting resistance R3 10K current limliting again, obtain a 1.25V reference voltage, finally be connected to first leading portion NPN triode Q1 2N5551, the E pole of triode Q1 is connected rear ground connection with current-limiting resistance (R5:100R), this triode is as detection control part, be responsible for Power supply situation, when detection power cut-off disconnects earth-return at once, then next triode Q2 2N5551 is by the conducting of main power source positive pole current-limiting resistance R6 32K current limliting, thus open loop ground connection and be communicated with main circuit positive pole by current-limiting resistance R7 960R and discharge with ground, reach and bleed off the main filter capacitor voltage of rear class fast and to turn off the light fast object.When power supply electrifying moment because the very little charging rate of filter capacitor C1 1uf either shallow filter capacity is very fast, so NPN pipe testing circuit work at once can pin rear class electric discharge NPN pipe, it is not allowed to discharge above.Major loop filter capacitor due to the large voltage rise of capacity slow, major loop filter capacitor just starts the initial stage of rising, detect NPN triode just locked rear class thus ensure that power supply can not discharge when normally working and cause the loss of power to bear, when NPN triode detects the power-off of VT1 winding, to pull up a horse action, disconnect rear class NPN triode B pin to earth-return, rear class NPN triode B pin, by main circuit positive pole power taking conducting 960R conductive discharge, finally reaches object of turning off the light fast.
Above are only preferred embodiment of the present utility model, certainly, explore according to actual needs and further and can also have other execution mode.But, it is clearly understood that, based on similar above-mentioned or other conversion with the execution mode of same idea do not stated out, all should be encompassed within protection range of the present utility model.
Claims (5)
1. a LED for energy extinguish fast, is characterized in that, transformer one end connects VCC IN, another termination current-limiting resistance R1, meets rectifier diode D2, and side is connected with the transformer other end after connecing the filtering of filter capacitor C1 either shallow, formation loop; The rectifier diode D2 other end is connected with current-limiting resistance R2, and side meets voltage stabilizing didoe D2, then meets current-limiting resistance R3, ground connection after other connecting resistance R4; And be connected with the b pole of triode Q1 after the filtering of filter capacitor C2 either shallow, the E pole of triode Q1 is connected rear ground connection with current-limiting resistance R5, the C pole of triode Q1 is connected with the b pole of triode Q2 after electric capacity C3 filtering after filtering, be connected with main power source positive pole by current-limiting resistance R6 simultaneously, loop ground connection, connected by current-limiting resistance R7, the E pole ground connection of triode Q2.
2. the LED of energy extinguish fast according to claim 1, it is characterized in that, also comprising transformer secondary output increases a little winding TV1, and transformer assists winding TV1 to power, and detects auxiliary winding voltage.
3. the LED of energy extinguish fast according to claim 2, is characterized in that, circuit powered on moment pinning discharge resistance loop does not affect major loop VCC and normally works.
4. according to claim 3 can the LED of extinguish fast, it is characterized in that, detect auxiliary winding power-off, switch to main circuit VCC immediately and power, star t-up discharge resistance is released the electricity of capacitance stores simultaneously.
5. the LED of energy extinguish fast according to claim 4, is characterized in that, discharge resistance is complete for electric capacity tele-release on major loop to below 0.7V cut-off electric discharge, and whole discharge process terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858838.XU CN204350378U (en) | 2014-12-30 | 2014-12-30 | A kind of LED of energy extinguish fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858838.XU CN204350378U (en) | 2014-12-30 | 2014-12-30 | A kind of LED of energy extinguish fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204350378U true CN204350378U (en) | 2015-05-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420858838.XU Expired - Fee Related CN204350378U (en) | 2014-12-30 | 2014-12-30 | A kind of LED of energy extinguish fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204350378U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262548A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十四研究所 | Light receiving circuit |
| CN105282893A (en) * | 2015-11-18 | 2016-01-27 | 明纬(广州)电子有限公司 | Alternating-current-monitoring-based LED illumination self-discharge circuit |
| CN105959600A (en) * | 2016-06-29 | 2016-09-21 | 重庆惠科金扬科技有限公司 | Circuit capable of quickly turning off TV indicator lamp after power off, and television |
| CN106849636A (en) * | 2017-04-13 | 2017-06-13 | 四川长虹电器股份有限公司 | For the control circuit of Switching Power Supply |
| CN108471654A (en) * | 2018-05-03 | 2018-08-31 | 海宁福得电器有限公司 | A kind of anti-glimmer non-isolation type driving LED ceiling lamp tool |
-
2014
- 2014-12-30 CN CN201420858838.XU patent/CN204350378U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262548A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十四研究所 | Light receiving circuit |
| CN105262548B (en) * | 2015-10-20 | 2017-09-22 | 中国电子科技集团公司第四十四研究所 | Optical receiving circuit |
| CN105282893A (en) * | 2015-11-18 | 2016-01-27 | 明纬(广州)电子有限公司 | Alternating-current-monitoring-based LED illumination self-discharge circuit |
| CN105959600A (en) * | 2016-06-29 | 2016-09-21 | 重庆惠科金扬科技有限公司 | Circuit capable of quickly turning off TV indicator lamp after power off, and television |
| CN105959600B (en) * | 2016-06-29 | 2023-04-07 | 重庆惠科金扬科技有限公司 | Circuit for quickly turning off TV indicator lamp after power failure and television |
| CN106849636A (en) * | 2017-04-13 | 2017-06-13 | 四川长虹电器股份有限公司 | For the control circuit of Switching Power Supply |
| CN108471654A (en) * | 2018-05-03 | 2018-08-31 | 海宁福得电器有限公司 | A kind of anti-glimmer non-isolation type driving LED ceiling lamp tool |
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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: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |