CN206077770U - One kind disappears and dodges LED power supply circuits - Google Patents
One kind disappears and dodges LED power supply circuits Download PDFInfo
- Publication number
- CN206077770U CN206077770U CN201621079223.2U CN201621079223U CN206077770U CN 206077770 U CN206077770 U CN 206077770U CN 201621079223 U CN201621079223 U CN 201621079223U CN 206077770 U CN206077770 U CN 206077770U
- Authority
- CN
- China
- Prior art keywords
- led
- constant
- current source
- power
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
One kind disappears and dodges LED power supply circuits, including the wire between constant-current source, LED, constant-current source and LED, the continued power switch being serially connected on wire, and improvements introduced is：Assistant load resistance and the by-pass switch that in short-term turn in parallel with LED that increase is connected with LED.The power of assistant load resistance therein for LED power 1:1, by-pass switch selects the delay switch that relay or PLC are controlled.The beneficial effects of the utility model are：The by-pass switch turned on as assistant load and in short-term by increased load resistance, after being formed in constant-current source current stabilization, then by the start-up course in LED access loop, eliminates LED scintillation.Increase the service life of LED, it is to avoid stimulation of the flicker to observer's vision.
Description
Technical field
This utility model belongs to lighting field, and in particular to LED disappears sudden strain of a muscle control.
Background technology
Light emitting diode has the advantages that many, such as running voltage is low, power consumption is few, stable performance, long service life, anti-impact
Hit, vibration resistance, lightweight, small volume, low cost, circuit it is simple, easy to use.LED light source, is extensively used as signal lighties, is handing over
Logical, military field application is more and more extensive.The modulating performance of LED light source is good, can by adjust the size of additional constant-current source come
Adjust the luminous flux of LED.In the circuit of the load of constant-current source, there is a peak in the moment of loop conducting, the electric current of constant-current source
Electric current is gushed, this peak gushes nominal value of the electric current much larger than power supply.The power supply of each producer takes many braking measures, but all
Peak can not be completely eliminated and gushes electric current.Loads of the LED as constant-current source, in the moment of power on, peak gushes electric current and flows through LED, makes
Nominal luminous flux is far longer than into LED light flux.Then electric current drops to nominal value, and LED light flux also drops to nominal value therewith, makes
Into the scintillation of LED.In signal lamp application, need LED to light repeatedly, extinguish, so circulate at each, have
The process of one flicker.The impact for causing has 2：1st, LED is repeatedly subjected to the impact that peak gushes electric current, causes LED life to reduce；2、
The receiver of LED light source signal, is visually impacted, and easily produces fatigue and illusion.Also do not see in the prior art
The LED power supply circuits of function are dodged to having to disappear.
Utility model content
The purpose of this utility model is to provide one kind and disappears sudden strain of a muscle LED power supply circuits, eliminates the sudden strain of a muscle of LED moment after striking
Bright phenomenon, overcomes existing LED above shortcomings.
This utility model includes wire between constant-current source, LED, constant-current source and LED, is serially connected in continuing on wire
Power switch, improvements introduced is：The assistant load resistance connected with LED of increase and in parallel with LED turn in short-term
By-pass switch.
The power of assistant load resistance therein for LED power 1:1, by-pass switch selects what relay or PLC were controlled
Delay switch.
The course of work of the present utility model is：Close continued power switch and by-pass switch simultaneously, and one is produced in constant-current source
Individual big peak gushes electric current, and this electric current is added on assistant load resistance.Then the electric current of constant-current source returns to nominal value, at this moment breaks
By-pass switch is opened, LED is lighted under nominal value electric current.Current reverts are gushed to the time of normal current typically several in constant-current source peak
Ten milliseconds, the time that by-pass switch disconnects, less times greater than this time.If LED needs to light repeatedly and extinguish, control
The break-make of by-pass switch processed.
The beneficial effects of the utility model are：The bypass turned on as assistant load and in short-term by increased load resistance
Switch, after being formed in constant-current source current stabilization, then by the start-up course in LED access loop, eliminates LED scintillation.Increase
Plus the service life of LED, it is to avoid stimulation of the flicker to observer's vision.
Description of the drawings
Fig. 1 is circuit diagram of the present utility model.
Specific embodiment
Include refering to Fig. 1, this utility model：Wire between constant-current source 1, LED 2, constant-current source 1 and LED 2, concatenate
Continued power on and off switch 3 on wire, with the load resistance 4 that LED 2 is connected, the by-pass switch 5 in parallel with LED 2.
Wherein, the power of load resistance for LED power 1:1, by-pass switch selects the delay switch that relay or PLC are controlled.
Claims (2)
1. one kind disappears sudden strain of a muscle LED power supply circuits, including the wire between constant-current source, LED, constant-current source and LED, is serially connected in and leads
Continued power switch on line, is characterized in that：The assistant load resistance connected with LED of increase and it is in parallel with LED in short-term
The by-pass switch of conducting.
2. the sudden strain of a muscle LED power supply circuits that disappear according to claim 1, is characterized in that：The power of assistant load resistance therein
For the 1 of LED power:1, by-pass switch selects the delay switch that relay or PLC are controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079223.2U CN206077770U (en) | 2016-09-26 | 2016-09-26 | One kind disappears and dodges LED power supply circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079223.2U CN206077770U (en) | 2016-09-26 | 2016-09-26 | One kind disappears and dodges LED power supply circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077770U true CN206077770U (en) | 2017-04-05 |
Family
ID=58440333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079223.2U Expired - Fee Related CN206077770U (en) | 2016-09-26 | 2016-09-26 | One kind disappears and dodges LED power supply circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882476A (en) * | 2018-04-25 | 2018-11-23 | 丰唐物联技术（深圳）有限公司 | A kind of disappear flashing device and single ignition circuit system based on single fiery electricity-getting switch |
| CN110798928A (en) * | 2018-07-25 | 2020-02-14 | 法雷奥照明公司 | Electronic device, method for controlling a lighting device and motor vehicle lighting device |
-
2016
- 2016-09-26 CN CN201621079223.2U patent/CN206077770U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882476A (en) * | 2018-04-25 | 2018-11-23 | 丰唐物联技术（深圳）有限公司 | A kind of disappear flashing device and single ignition circuit system based on single fiery electricity-getting switch |
| CN110798928A (en) * | 2018-07-25 | 2020-02-14 | 法雷奥照明公司 | Electronic device, method for controlling a lighting device and motor vehicle lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20170926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |