CN105898933A - Low-power fade-on and fade-off LED lighting lamp - Google Patents
Low-power fade-on and fade-off LED lighting lamp Download PDFInfo
- Publication number
- CN105898933A CN105898933A CN201610404460.XA CN201610404460A CN105898933A CN 105898933 A CN105898933 A CN 105898933A CN 201610404460 A CN201610404460 A CN 201610404460A CN 105898933 A CN105898933 A CN 105898933A
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- resistance
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- lighting lamp
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- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a low-power fade-on and fade-off LED lighting lamp. The low-power fade-on and fade-off LED lighting lamp is characterized by comprising a 220V AC power supply, a 12V DC voltage stabilizing circuit, a startup and shutdown and control circuit and a light-emitting diode power drive circuit. The lighting lamp is turned on to reach full brightness or is suddenly powered off to extinguish during the dark night; and eyes cannot adapt at the moment, so that learning or resting of people is not facilitated; and the eyes of people are certainly affected. The lighting lamp which can slowly light up when a power supply switch is turned on, and slowly go out when turned off is designed. If the working mode is achieved, the eyes of people are not stimulated by strong light at night; the lighting lamp meets the physiological requirements of the eyes of people; and people can conveniently leave or go to bed when the lighting lamp fades off. The low-power fade-on and fade-off LED lighting lamp is completely or partially fabricated by discrete devices, so that the low-power fade-on and fade-off LED lighting lamp is simple in circuit, stable to work and reliable in performance, and is an energy-saving and practical technical scheme.
Description
Technical field
The invention belongs to electronic technology and lighting technical field, be about a kind of small-power brightness bright-dark LED
Illuminating lamp.
Background technology
Common illuminating lamp or delay illuminating lamp typical mode of operation be: otherwise illuminating lamp opens all light, or
Illumination lamp ignition works automatic distinguishing after a period of time, and illumination lamp ignition is to the brightness between extinguishing the most excessively
State.Between black night, all light opened by illuminating lamp or power-off suddenly is extinguished, and moment eyes are far from suitable, no
The study of only inconvenient people or rest, and the eyes of people are had a certain impact.One can be designed
When turning on the power switch, illuminating lamp can light at leisure, when closing illuminating lamp for extinguish at leisure.If energy
Realize such mode of operation, then the eyes of people at night will not be subject high light stimulates, and meets people's eyes
Physiological requirement, in illuminating lamp the most dimmed period, is also convenient for people and leaves or go to bed.
Small-power brightness bright-dark LED illumination lamp of the present invention all uses discrete component to make,
Have that circuit is simple, working stability, dependable performance, be a kind of energy-conservation, practical technical scheme.
Small-power brightness bright-dark LED illumination lamp of the present invention described further below is in implementation process
Involved necessity, guardian technique content.
Summary of the invention
Goal of the invention and beneficial effect: between black night, all light opened by illuminating lamp or power-off suddenly is extinguished, wink
Between eyes be far from suitable, the not only study of inconvenient people or rest, and the eyes of people are had certain shadow
Ring.One illuminating lamp when turning on the power switch can be designed can light at leisure, when closing illuminating lamp
For extinguishing at leisure.If such mode of operation can be realized, then the eyes of people at night will not be subject high light thorn
Swash, meet the physiological requirement of people's eyes, in illuminating lamp the most dimmed period, be also convenient for people and leave or just
Get into bed.Small-power brightness bright-dark LED illumination lamp of the present invention all uses discrete component to make,
Have that circuit is simple, working stability, dependable performance, be a kind of energy-conservation, practical technical scheme.
Circuit operation principle: the circuit of small-power brightness bright-dark LED illumination lamp by 220V alternating current power supply,
12V direct current regulation circuit, startup and closing control circuit, LED power drive circuit composition.
220V alternating current power supply through decompression capacitor C1 and bleeder resistance R1 blood pressure lowering current limliting, through full-bridge rectification element QZ rectification,
Obtained 12V direct current regulation circuit by after silicon voltage regulator diode DW voltage stabilizing, controlled with closing control circuit by starting
The working power needed for LED illumination.
When close activate switch SW time, the base stage of NPN type triode VT1 obtains bias voltage, NPN type three
Pole pipe VT1 turns on, and makes the emitter stage output high level of NPN type triode VT1, by enhancement mode N-channel field
Effect pipe VT2 drives super bright white light-emitting diode LED1～LED12 luminous.
When activate switch SW disconnects, because the base stage of NPN type triode VT1 is without bias voltage, now NPN
Type audion VT1 and enhancement mode N-channel field effect transistor VT2 are turned off, and make super bright white light-emitting diode
LED1～LED12 dead electricity does not works.
Owing to being connected to electrochemical capacitor C3 at the grid of enhancement mode N-channel field effect transistor VT2, because of electrochemical capacitor C3
Charge and discharge need a time course, the high level making NPN type triode VT1 emitter stage export is able to
Maintain, so that the grid of enhancement mode N-channel field effect transistor VT2 has a bias being gradually lowered, then make
Enhancement mode N-channel field effect transistor VT2 maintain gradual change conducting, then super bright white light-emitting diode LED1～
LED12 gradually lights, or gradually extinguishes about maintenance 5 seconds.When electrochemical capacitor C3 charge and discharge value
2V is critical point, makes enhancement mode N-channel field effect transistor VT2 begin to turn on or end, corresponding superelevation brilliant white
Color LED 1～LED12 just starts to light, or just starts to extinguish.
Technical characteristic: small-power brightness bright-dark LED illumination lamp, it includes 220V alternating current power supply, 12V
Direct current regulation circuit, start with close and control circuit, LED power drive circuit, it is characterised in that:
Start with close and control circuit: it by activate switch SW, resistance R2, resistance R3, resistance R4,
NPN type triode VT1, resistance R5 and electrochemical capacitor C3 composition, the base stage of NPN type triode VT1 is passed through
One end of resistance R4 connecting resistance R2 and one end of resistance R3, the other end of resistance R2 passes through activate switch SW
The other end connection circuit ground GND of connection circuit positive pole VCC, resistance R3, the colelctor electrode of NPN type triode VT1 connects
Circuit anode VCC, the emitter stage of NPN type triode VT1 connects the positive pole of electrochemical capacitor C3 by resistance R5,
The negative pole connection circuit ground GND of electrochemical capacitor C3；
LED power drive circuit: it is super bright by enhancement mode N-channel field effect transistor VT2 and 12
White light-emitting diode LED1～LED12 forms, and the grid of enhancement mode N-channel field effect transistor VT3 connects electrolysis
The positive pole of electric capacity C3, the source electrode connection circuit ground GND of enhancement mode N-channel field effect transistor VT2, enhancement mode N ditch
The drain electrode of road field effect transistor VT2 connects the negative pole of super bright white light-emitting diode LED4 and super bright white luminous
The negative pole of diode (LED) 8 and the negative pole of highlighted white LED 12, super bright white luminous two poles
Pipe LED1～LED4 mutually contacts, and super bright white light-emitting diode LED5～LED8 mutually contacts, superelevation
Brilliant white LED 9～LED12 is mutually contacted, the positive pole of super bright white light-emitting diode LED1
Connect with the positive pole of the positive pole of super bright white light-emitting diode LED5 and super bright white light-emitting diode LED9
Circuit anode VCC；
12V direct current regulation circuit: it is by decompression capacitor C1, bleeder resistance R1, full-bridge rectification element QZ, silicon
Zener diode DW and electrochemical capacitor C2 composition, the alternating current input of full-bridge rectification element QZ connects fall respectively
Voltage capacitance C1 one end and one end of bleeder resistance R1, the zero line side of 220V alternating current power supply, decompression capacitor C1 is another
The live wire end L of another termination 220V alternating current power supply of one end and bleeder resistance R1, full-bridge rectification element QZ's
The positive pole of outfan meets the negative pole of silicon voltage regulator diode DW, the positive pole of electrochemical capacitor C2 and circuit anode VCC,
The negative pole of the outfan of full-bridge rectification element QZ and the negative pole connection circuit ground GND of electrochemical capacitor C2；
The positive pole connection circuit positive pole VCC of 12V direct current regulation circuit, the negative pole connection circuit of 12V direct current regulation circuit
Ground GND.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit of small-power brightness one embodiment of bright-dark LED illumination lamp that the present invention provides
Fundamental diagram.
Detailed description of the invention
According to the small-power brightness bright-dark LED illumination lamp circuit fundamental diagram shown in accompanying drawing 1 and accompanying drawing
Illustrate, and according to annexation between components and parts in each several part circuit described in summary of the invention, and embodiment party
Components and parts technical parameter described in formula requires and circuit production main points carry out enforcement and can realize the present invention, with
Under the correlation technique of the present invention is further described in conjunction with the embodiments.
The technical parameter of components and parts and selection requirement thereof
VT1 is NPN type triode, and the model of selection is 2SC9013 or 3DG12, it is desirable to β >=100；
VT2 is enhancement mode N-channel field effect transistor, and the model of selection is IRFZ22；
QZ is full-bridge rectification element, and technical parameter is 1A/400V, also can be selected for 4 models be 1N4004 or
1N4007 silicon rectifier diode；
DW is silicon voltage regulator diode, and the voltage stabilizing value of stabilivolt is 12V, 1W；
The resistance of bleeder resistance R1 is 820K Ω；The resistance of resistance R2 is 82K Ω；The resistance of resistance R3 is
160KΩ；The resistance of resistance R4 is 16K Ω；The resistance of resistance R5 is 470K Ω；
C1 is decompression capacitor, and capacity is 0.82 μ F, selection pressure voltage is more than 450V CBB electric capacity of the dacron；
C2 is electrochemical capacitor, and capacity is 1000 μ F/25V；C3 is electrochemical capacitor, and capacity is 470 μ F/25V；
LED1～LED12 is super bright white light-emitting diode, selects 12 ￠ 5 super bright white luminous two
Pole is managed.
Circuit production main points and circuit debugging
Because the circuit structure of small-power brightness bright-dark LED illumination lamp is fairly simple, as long as generally
The electronic devices and components performance selected is intact, and the components and parts annexation in accompanying drawing 1 is welded to specifications
Connect, physical connection line and welding quality through going through correct after, the circuit of the present invention have only to into
The simple debugging of row can normally work；
If it is the most agile or unreliable with closedown and control circuit work performance to start, can be by regulation resistance R2's
Resistance, can change sensitivity and the reliability of control circuit；
If feeling super bright white light-emitting diode luminance shortage, can accompanying drawing 1 circuit work to specifications
The connected mode of light emitting diode on schematic diagram, suitably increases the group number of super bright white light-emitting diode.
The circuit components layout of the present invention, circuit structure design, its shape of outward appearance and size thereof
Etc. being not the key technology of the present invention, it is not claimed technology contents, because not affecting this
Invention specific implementation process, therefore illustrate the most one by one.
Claims (1)
1. a small-power brightness bright-dark LED illumination lamp, it includes 220V alternating current power supply, 12V direct current
Mu balanced circuit, start with close and control circuit, LED power drive circuit, it is characterised in that:
Described startup and closedown and control circuit by activate switch SW, resistance R2, resistance R3, resistance R4,
NPN type triode VT1, resistance R5 and electrochemical capacitor C3 composition, the base stage of NPN type triode VT1 is passed through
One end of resistance R4 connecting resistance R2 and one end of resistance R3, the other end of resistance R2 passes through activate switch SW
The other end connection circuit ground GND of connection circuit positive pole VCC, resistance R3, the colelctor electrode of NPN type triode VT1 connects
Circuit anode VCC, the emitter stage of NPN type triode VT1 connects the positive pole of electrochemical capacitor C3 by resistance R5,
The negative pole connection circuit ground GND of electrochemical capacitor C3；
Described LED power drive circuit is by enhancement mode N-channel field effect transistor VT2 and 12 superelevation
Brilliant white LED 1～LED12 forms, and the grid of enhancement mode N-channel field effect transistor VT3 connects electricity
Solve the positive pole of electric capacity C3, the source electrode connection circuit ground GND of enhancement mode N-channel field effect transistor VT2, enhancement mode N
The drain electrode of channel field-effect pipe VT2 connects the negative pole of super bright white light-emitting diode LED4 and super bright white is sent out
The negative pole of optical diode LED8 and the negative pole of highlighted white LED 12, super bright white luminous two
Pole pipe LED1～LED4 mutually contacts, and super bright white light-emitting diode LED5～LED8 mutually contacts, super
Highlighted white LED 9～LED12 is mutually contacted, and super bright white light-emitting diode LED1 is just
Pole and the positive pole of super bright white light-emitting diode LED5 and the positive pole of super bright white light-emitting diode LED9
Connection circuit positive pole VCC；
Described 12V direct current regulation circuit by decompression capacitor C1, bleeder resistance R1, full-bridge rectification element QZ,
Silicon voltage regulator diode DW and electrochemical capacitor C2 composition, the voltage stabilizing value of silicon voltage regulator diode DW is 12V, full-bridge
The alternating current input of rectifier cell QZ meets decompression capacitor C1 one end and one end of bleeder resistance R1,220V respectively
The zero line side of alternating current power supply, another termination 220V alternating current of the decompression capacitor C1 other end and bleeder resistance R1
The live wire end L in source, the positive pole of the outfan of full-bridge rectification element QZ connects the negative pole of silicon voltage regulator diode DW, electricity
Solve positive pole and circuit anode VCC, the negative pole of the outfan of full-bridge rectification element QZ and the electrochemical capacitor of electric capacity C2
The negative pole connection circuit ground GND of C2；
The positive pole connection circuit positive pole VCC of described 12V direct current regulation circuit, the negative pole of 12V direct current regulation circuit
Connection circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404460.XA CN105898933A (en) | 2016-06-10 | 2016-06-10 | Low-power fade-on and fade-off LED lighting lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610404460.XA CN105898933A (en) | 2016-06-10 | 2016-06-10 | Low-power fade-on and fade-off LED lighting lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105898933A true CN105898933A (en) | 2016-08-24 |
Family
ID=56728961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610404460.XA Pending CN105898933A (en) | 2016-06-10 | 2016-06-10 | Low-power fade-on and fade-off LED lighting lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105898933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109739287A (en) * | 2018-12-10 | 2019-05-10 | 江苏科技大学 | A kind of monitoring unit and its implementation |
| CN110809343A (en) * | 2019-12-10 | 2020-02-18 | 江一奇 | Control method for gradually-lighting and gradually-dimming LED (light emitting diode) illumination |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917728A (en) * | 2005-08-18 | 2007-02-21 | 赵璟怡 | Illuminating of lamplight-emitting diode suitable to AC electric supply |
| JP2007149874A (en) * | 2005-11-25 | 2007-06-14 | Matsushita Electric Works Ltd | Lighting circuit for high-speed light-emitting led and range image sensor using the same |
| CN101236445A (en) * | 2007-01-30 | 2008-08-06 | 刘世安 | Power consumption free voltage stabilizing power source circuit |
| CN105101578A (en) * | 2015-09-11 | 2015-11-25 | 黄宇嵩 | Breathing type led lamp |
| CN105554969A (en) * | 2016-03-03 | 2016-05-04 | 吴建堂 | Infrared detection delayed half-bright and full-bright road lamp of scenic spot road |
-
2016
- 2016-06-10 CN CN201610404460.XA patent/CN105898933A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917728A (en) * | 2005-08-18 | 2007-02-21 | 赵璟怡 | Illuminating of lamplight-emitting diode suitable to AC electric supply |
| JP2007149874A (en) * | 2005-11-25 | 2007-06-14 | Matsushita Electric Works Ltd | Lighting circuit for high-speed light-emitting led and range image sensor using the same |
| CN101236445A (en) * | 2007-01-30 | 2008-08-06 | 刘世安 | Power consumption free voltage stabilizing power source circuit |
| CN105101578A (en) * | 2015-09-11 | 2015-11-25 | 黄宇嵩 | Breathing type led lamp |
| CN105554969A (en) * | 2016-03-03 | 2016-05-04 | 吴建堂 | Infrared detection delayed half-bright and full-bright road lamp of scenic spot road |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109739287A (en) * | 2018-12-10 | 2019-05-10 | 江苏科技大学 | A kind of monitoring unit and its implementation |
| CN110809343A (en) * | 2019-12-10 | 2020-02-18 | 江一奇 | Control method for gradually-lighting and gradually-dimming LED (light emitting diode) illumination |
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| PB01 | Publication | ||
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Application publication date: 20160824 |