CN110113845A - A kind of LED illumination power supply eyeshield SS (soft start) control circuit - Google Patents
A kind of LED illumination power supply eyeshield SS (soft start) control circuit Download PDFInfo
- Publication number
- CN110113845A CN110113845A CN201910491839.2A CN201910491839A CN110113845A CN 110113845 A CN110113845 A CN 110113845A CN 201910491839 A CN201910491839 A CN 201910491839A CN 110113845 A CN110113845 A CN 110113845A
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- Prior art keywords
- resistance
- diode
- power supply
- eyeshield
- output voltage
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- 238000005286 illumination Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims 2
- 239000011324 bead Substances 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of LED illumination power supply eyeshield SS (soft start) control circuit, including output voltage pressure stabilizing control loop, the output voltage pressure stabilizing control loop is made of resistance one, resistance two, photoelectrical coupler, capacitor, controllable accurate source of stable pressure, resistance three, resistance four, resistance five, it is additionally provided with control timing circuit, the control timing circuit is made of resistance one, resistance two, photoelectrical coupler, diode one, diode two, electrolytic capacitor, resistance six and zener diode.It using the present invention, can make light is soft slowly to increase to maximum brightness, to time for adapting to and be effectively protected to human eye, while reduce the rush of current to lamp bead.
Description
Technical field
The present invention relates to a kind of LED illumination power supply eyeshield SS (soft start) control circuits.
Background technique
Currently, since output voltage settling time is too fast, LED light is in moment after energization when LED power drives LED illumination
Reach maximum brightness, to form stimulation and injury to human eye (especially under dark scene)；Simultaneously as power supply is quick
Starting forms dash current to lamp bead, forms instantaneous temperature and sharply increases, generates the physical change expanded with heat and contract with cold, influence lamp bead
Service life.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind can make light it is soft slowly increase to it is most light
Degree to time for adapting to and be effectively protected to human eye, while reducing the LED illumination power supply to the rush of current of lamp bead
Eyeshield SS (soft start) control circuit.
The technical solution adopted by the present invention to solve the technical problems is: a kind of LED illumination power supply eyeshield soft start control
Circuit, including output voltage pressure stabilizing control loop, the output voltage pressure stabilizing control loop is by resistance one, resistance two, photoelectricity coupling
Clutch, capacitor, controllable accurate source of stable pressure, resistance three, resistance four, resistance five form, and are additionally provided with control timing circuit, the control
Timing circuit is by resistance one, resistance two, photoelectrical coupler, diode one, diode two, electrolytic capacitor, resistance six and pressure stabilizing two
Pole pipe composition, the anode of the diode one be connected to resistance two, photoelectrical coupler, controllable accurate source of stable pressure it is commonly connected
Point, the cathode of diode one are connected to the anode of diode two, six one end of resistance and electrolytic capacitor anode, the cathode of electrolytic capacitor with
Six other end of resistance is connect after being connected with zener diode cathode, and the anode of zener diode is connected to output negative pole, diode
Two cathode is connected to output cathode.
Further, the electrolytic capacitor, resistance six, diode two, zener diode form capacitor electricity bleed-off circuit.
Further, in the output voltage pressure stabilizing control loop, resistance four, resistance five determine output voltage size.
The present invention by increase charging delay circuit control power supply export settling time, by electric power output voltage gradually from
Minimum voltage (minimum brightness voltage) needed for LED lamp bead work is initially increased to output voltage needed for normal brightness (can basis
Actually use adjusting parameter and control settling time), it can make light is soft slowly to increase to maximum brightness, to give human eye
It with the time adapted to and is effectively protected, while reducing the rush of current to lamp bead.
Detailed description of the invention
Fig. 1 is the schematic diagram of the embodiment of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.
Embodiment
Referring to Fig.1, a kind of LED illumination power supply eyeshield SS (soft start) control circuit, including output voltage pressure stabilizing control loop, institute
Output voltage pressure stabilizing control loop is stated by one R1 of resistance, two R2 of resistance, photoelectrical coupler P1, capacitor C1, controllable accurate source of stable pressure
U1, three R3 of resistance, four R4 of resistance and five R5 of resistance composition (being the prior art), are additionally provided with control timing circuit, the control is prolonged
When return one R1 of routing resistance, two R2 of resistance, photoelectrical coupler P1, one D1 of diode, two D2 of diode, electrolytic capacitor C2, resistance
Six R6, zener diode D3 composition, the anode of one D1 of diode are connected to two R2 of resistance, photoelectrical coupler P1, controllable essence
The points of common connection A of close source of stable pressure U1, the cathode of one D1 of diode are connected to two D2 of diode anode, six one end R6 of resistance and electricity
Capacitor C2 anode is solved, the cathode of electrolytic capacitor C2 is connect after being connected with the six R6 other end of resistance with zener diode D3 cathode, surely
The anode of pressure diode D3 is connected to output negative pole GND, and the cathode of two D2 of diode is connected to output cathode VCC.
In the present embodiment, the electrolytic capacitor C2, six R6 of resistance, two D2 of diode, zener diode D3 composition capacitor electricity
Measure bleed-off circuit.
In the present embodiment, in the output voltage pressure stabilizing control loop, four R4 of resistance, five R5 of resistance determine output voltage
Size.
Power supply be powered when, power supply secondary output end by one R1 of resistance, two R2 of resistance, photoelectrical coupler P1, capacitor C1, can
Control precision voltage regulator U1, three R3 of resistance, four R4 of resistance, five R5 of resistance begin setting up output pressure stabilizing sampled voltage signal and benchmark electricity
Signal A is pressed, when A point voltage is lower than zener diode D3 pressure stabilizing value, control timing circuit does not work, when A point voltage reaches steady
When pressing the pressure stabilizing value of diode D3, zener diode D3 conducting, reference voltage signal A can pass through one D1 of diode, two pole of pressure stabilizing
Pipe D3 gives electrolytic capacitor C2 charging, cause reference voltage signal A point voltage follow on electrolytic capacitor C2 voltage be gradually increasing, from
And primary source voltage output control section is fed back to by photoelectrical coupler P1, control output voltage VCC is also to gradually increase
, when output voltage VCC increases to the output voltage values set by four R4 of resistance, five R5 of resistance, output voltage is completed to establish,
To which the effect for realizing that electric power output voltage slowly starts (can change voltage by adjusting the capacitance size of electrolytic capacitor C2 to build
Between immediately).When power cut-off, the electricity on electrolytic capacitor C2 is connected to load by two D2 of diode, zener diode D3
LED light is quickly released, while six R6 of resistance by being connected in parallel on the both ends electrolytic capacitor C2 discharges, it is ensured that on electrolytic capacitor C2
Electricity is released completely, to not influence output voltage settling time when starting power supply next time.
The present invention is on the basis of power supply itself, by additionally increasing a small amount of component (one D1 of diode, six R6 of resistance, electricity
Solution capacitor C2, two D2 of diode) supply voltage can be realized slowly starts, it realizes that LED light brightness is soft and is slowly increased to maximum
Brightness, to the eyes of effective protection people and delay the light decay speed of lamp bead.
Claims (3)
1. a kind of LED illumination power supply eyeshield SS (soft start) control circuit, including output voltage pressure stabilizing control loop, the output voltage
Pressure stabilizing control loop is by resistance one, resistance two, photoelectrical coupler, capacitor, controllable accurate source of stable pressure, resistance three, resistance four, resistance
Five compositions, it is characterised in that: be additionally provided with control timing circuit, the control timing circuit is by resistance one, resistance two, photoelectric coupling
Device, diode one, diode two, electrolytic capacitor, resistance six and zener diode composition, the anode of the diode one are connected to
Resistance two, photoelectrical coupler, controllable accurate source of stable pressure points of common connection, the cathode of diode one is being connected to diode two just
Pole, six one end of resistance and electrolytic capacitor anode, after the cathode of electrolytic capacitor is connected with six other end of resistance and zener diode is negative
Pole connection, the anode of zener diode are connected to output negative pole, and the cathode of diode two is connected to output cathode, the electrolysis electricity
Appearance, resistance six, diode two, zener diode form capacitor electricity bleed-off circuit.
2. LED illumination power supply eyeshield SS (soft start) control circuit according to claim 1, it is characterised in that: the electrolysis electricity
Appearance, resistance six, diode two, zener diode form capacitor electricity bleed-off circuit.
3. LED illumination power supply eyeshield SS (soft start) control circuit according to claim 1 or 2, it is characterised in that: described is defeated
Out in voltage pressure stabilizing control loop, resistance four, resistance five determine output voltage size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491839.2A CN110113845B (en) | 2019-06-06 | 2019-06-06 | Eye protection soft start control circuit of LED illumination power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491839.2A CN110113845B (en) | 2019-06-06 | 2019-06-06 | Eye protection soft start control circuit of LED illumination power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110113845A true CN110113845A (en) | 2019-08-09 |
| CN110113845B CN110113845B (en) | 2024-03-22 |
Family
ID=67494287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910491839.2A Active CN110113845B (en) | 2019-06-06 | 2019-06-06 | Eye protection soft start control circuit of LED illumination power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110113845B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060022916A1 (en) * | 2004-06-14 | 2006-02-02 | Natale Aiello | LED driving device with variable light intensity |
| CN2909729Y (en) * | 2006-03-17 | 2007-06-06 | 海信集团有限公司 | Power supply soft start-up circuit and TV. set with the soft start-up circuit |
| CN2932822Y (en) * | 2005-12-01 | 2007-08-08 | 敬德元 | Novel switch power circuit |
| CN101154881A (en) * | 2006-09-29 | 2008-04-02 | 群康科技(深圳)有限公司 | Switch power circuit |
| CN201805349U (en) * | 2010-09-21 | 2011-04-20 | 东莞市奥源电子科技有限公司 | Switch power voltage-stabilizing circuit with soft start function |
| JP2012016145A (en) * | 2010-06-30 | 2012-01-19 | Denso Corp | Soft switching signal transmitting apparatus and method for manufacturing the same |
| 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 |
| CN206379711U (en) * | 2016-12-19 | 2017-08-04 | 合肥钦力电子有限公司 | New power-off output delay disconnecting circuit |
| CN107094326A (en) * | 2016-02-18 | 2017-08-25 | 海洋王（东莞）照明科技有限公司 | LED lamp controls circuit |
| WO2017152456A1 (en) * | 2016-03-08 | 2017-09-14 | 深圳市华星光电技术有限公司 | Alternating current-to-direct current power supply output system |
| CN206575634U (en) * | 2017-02-27 | 2017-10-20 | 旭源电子（珠海）有限公司 | A kind of dimming control switch LED constant current power supply |
| US20180110107A1 (en) * | 2015-03-30 | 2018-04-19 | Philips Lighting Holding B.V. | Isolated driver |
| CN207542990U (en) * | 2017-10-31 | 2018-06-26 | 长沙广义变流技术有限公司 | A kind of soft starting circuit based on TL431 closed-loop controls |
| CN210157437U (en) * | 2019-06-06 | 2020-03-17 | 湖南凯上电子科技有限公司 | Eye-protecting soft-start control circuit for LED lighting power supply |
-
2019
- 2019-06-06 CN CN201910491839.2A patent/CN110113845B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060022916A1 (en) * | 2004-06-14 | 2006-02-02 | Natale Aiello | LED driving device with variable light intensity |
| CN2932822Y (en) * | 2005-12-01 | 2007-08-08 | 敬德元 | Novel switch power circuit |
| CN2909729Y (en) * | 2006-03-17 | 2007-06-06 | 海信集团有限公司 | Power supply soft start-up circuit and TV. set with the soft start-up circuit |
| CN101154881A (en) * | 2006-09-29 | 2008-04-02 | 群康科技(深圳)有限公司 | Switch power circuit |
| JP2012016145A (en) * | 2010-06-30 | 2012-01-19 | Denso Corp | Soft switching signal transmitting apparatus and method for manufacturing the same |
| CN201805349U (en) * | 2010-09-21 | 2011-04-20 | 东莞市奥源电子科技有限公司 | Switch power voltage-stabilizing circuit with soft start function |
| US20180110107A1 (en) * | 2015-03-30 | 2018-04-19 | Philips Lighting Holding B.V. | Isolated driver |
| 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 |
| CN107094326A (en) * | 2016-02-18 | 2017-08-25 | 海洋王（东莞）照明科技有限公司 | LED lamp controls circuit |
| WO2017152456A1 (en) * | 2016-03-08 | 2017-09-14 | 深圳市华星光电技术有限公司 | Alternating current-to-direct current power supply output system |
| CN206379711U (en) * | 2016-12-19 | 2017-08-04 | 合肥钦力电子有限公司 | New power-off output delay disconnecting circuit |
| CN206575634U (en) * | 2017-02-27 | 2017-10-20 | 旭源电子（珠海）有限公司 | A kind of dimming control switch LED constant current power supply |
| CN207542990U (en) * | 2017-10-31 | 2018-06-26 | 长沙广义变流技术有限公司 | A kind of soft starting circuit based on TL431 closed-loop controls |
| CN210157437U (en) * | 2019-06-06 | 2020-03-17 | 湖南凯上电子科技有限公司 | Eye-protecting soft-start control circuit for LED lighting power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110113845B (en) | 2024-03-22 |
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