CN204968185U - Little night -light of light -operated LED - Google Patents
Little night -light of light -operated LED Download PDFInfo
- Publication number
- CN204968185U CN204968185U CN201520722049.8U CN201520722049U CN204968185U CN 204968185 U CN204968185 U CN 204968185U CN 201520722049 U CN201520722049 U CN 201520722049U CN 204968185 U CN204968185 U CN 204968185U
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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
Abstract
The utility model relates to a little night -light of light -operated LED, its characteristic includes: 12V DC power supply, ambient light detection circuitry, the compound amplifier circuit of detected signal, emitting diode power drive circuit. Economize on electricity 90% is compared to the little night -light of LED with ordinary incandescent lamp, have super economize on electricity, ultra -long life. The LED lamp did not work daytime, only just can automatic lighting after the dark or darkness of light, and it is particularly suitable for the place use that there are old man or child in the family, and it also can regard as the low light level to throw light on. Little night -light of light -operated LED's circuit possess two kind light -operated and energy -conserving effects, it can open the LED lamp automatically when the darkness, again can be with LED lamp self -closing after the daybreak. Little night -light of light -operated LED has that the circuit is simple, job stabilization, dependable performance, and the circuit only uses a small amount of ordinary discrete devices, and the cost of manufacture only needs several yuan, is suitable for the mill and develops in batches.
Description
Technical field
The utility model belongs to electronic technology and lighting technical field, is about a kind of light-operated LED mini light night.
Background technology
LED night lamp is economize on electricity 90% compared with ordinary incandescent lamp, has super economize on electricity, extra long life.Daytime, LED did not work, and only had when ambient light is dimmed or just can automatically light after darkness, and it is particularly suitable for family has the place of old man or child to use, and it also can be used as low-level lighting.
The impact resistance of incandescent lamp and electricity-saving lamp is very poor, and electricity-saving lamp economize on electricity does not save money and builds consensus, and most corridor lamp ceaselessly switch all day long, to making it ceaselessly damage, ceaselessly changing, adding a large amount of human and material resources and expenditure.Therefore, light-operated LED mini light night is not only applicable to using at home, is also suitable for the illumination of public aisle.
The circuit of light-operated LED mini light night described in the utility model possesses light-operated and energy-conservation two kinds of effects, and it can open LED at dark automatically, LED automatically can be closed again after daybreak.
Light-operated LED mini light night has that circuit is simple, working stability, dependable performance, and circuit only uses a small amount of common discrete component, and cost of manufacture only needs a few unit, is suitable for factory's batch exploitation.
Below describe that light-operated LED mini light night described in the utility model is involved necessary in implementation process, guardian technique content in detail.
Utility model content
Goal of the invention and beneficial effect: LED night lamp is economize on electricity 90% compared with ordinary incandescent lamp, have super economize on electricity, extra long life.Daytime, LED did not work, and only had when ambient light is dimmed or just can automatically light after darkness, and it is particularly suitable for family has the place of old man or child to use, and it also can be used as low-level lighting.The circuit of light-operated LED mini light night described in the utility model possesses light-operated and energy-conservation two kinds of effects, and it can open LED at dark automatically, LED automatically can be closed again after daybreak.Light-operated LED mini light night has that circuit is simple, working stability, dependable performance, and circuit only uses a small amount of common discrete component, and cost of manufacture only needs a few unit, is suitable for factory's batch exploitation.
Circuit working principle: light-operated LED mini light night forms composite amplifier by 1 NPN type triode VT1 and 1 PNP type triode VT2, and its luminous sensitivity is regulated by potentiometer RP.At the base stage of NPN type triode VT1 and indirect 1 photo resistance RG of circuit ground GND, composing environment light testing circuit, controls automatically to realize half-light.The level exported by the collector electrode of PNP type triode VT2 controls enhancement mode N channel field-effect pipe VT1 respectively by load resistance R2, current-limiting resistance R3, makes white light-emitting diode LED1 ~ LED8 light or extinguish.
Time by day, because ambient light is brighter, photo resistance RG light is irradiated, its resistance is less, make the base voltage of NPN type triode VT1 constant in electronegative potential, so the composite amplifier be made up of NPN type triode VT1, PNP type triode VT2 quits work, now NPN type triode VT1, PNP type triode VT2 and enhancement mode N channel field-effect pipe VT1 all end, and white light-emitting diode LED1 ~ LED8 is not worked.
When ambient light is comparatively dark or after darkness, photo resistance RG makes resistance increase because of unglazed irradiation, lose the control ability to NPN type triode VT1 base stage, so, the composite amplifier be made up of NPN type triode VT1, PNP type triode VT2 is started working, export between high period at the collector electrode of PNP type triode VT2, drive white light-emitting diode LED1 ~ LED8 luminous by enhancement mode N channel field-effect pipe VT1.During the collector electrode output low level of PNP type triode VT2, because enhancement mode N channel field-effect pipe VT1 ends, white light-emitting diode LED1 ~ LED8 extinguishes.
Technical characteristic: light-operated LED mini light night, it comprises 12V DC power supply, ambient light testing circuit, detection signal composite amplifier, LED power drive circuit, it is characterized in that:
Ambient light testing circuit: it is made up of linear potentiometer RP, resistance R1 and photo resistance RG, one end of base stage connecting resistance R1 of NPN type triode VT1 and one end of photo resistance RG, the other end of resistance R1 connects one end of linear potentiometer RP, the other end of linear potentiometer RP and the other end connection circuit ground GND of movable end connection circuit positive pole VCC, photo resistance RG thereof;
Detection signal composite amplifier: it is made up of NPN type triode VT1, PNP type triode VT2 and resistance R2, the collector electrode of NPN type triode VT1 connects the base stage of PNP type triode VT2, the emitter connection circuit ground GND of NPN type triode VT1, the collector electrode of the emitter connection circuit positive pole VCC of PNP type triode VT2, PNP type triode VT2 is by resistance R2 connection circuit ground GND;
LED power drive circuit: it is by resistance R3, enhancement mode N channel field-effect pipe VT1 and white light-emitting diode LED1 ~ LED8 forms, 3rd pin of time-base circuit IC1 connects the grid of enhancement mode N channel field-effect pipe VT1 by resistance R3, the source electrode connection circuit ground GND of enhancement mode N channel field-effect pipe VT1, the drain electrode of enhancement mode N channel field-effect pipe VT1 connects the negative pole of white light-emitting diode LED4 and the negative pole of white light-emitting diode LED8, white light-emitting diode LED1 ~ LED4 contacts mutually, white light-emitting diode LED5 ~ LED8 contacts mutually, the positive pole of white light-emitting diode LED1 and the positive pole connection circuit positive pole VCC of white light-emitting diode LED5,
The positive pole connection circuit positive pole VCC of 12V DC power supply, the negative pole connection circuit ground GND of 12V DC power supply.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit working schematic diagram of the light-operated LED mini light night embodiment that the utility model provides.
Embodiment
According to the light-operated LED small night lamp circuit fundamental diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in execution mode requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.
The technical parameter of components and parts and selection requirement thereof
RG is photo resistance, and the technical parameter of photo resistance is resistance in the dark >=1M Ω, bright resistance≤8K Ω;
VT1 is NPN type triode, and the model selected is 2SC9013 or 3DG12, requires β >=100; VT2 is PNP type triode, and the model selected is 2SC9015 or 3DG21, requires β >=100;
VT1 is enhancement mode N channel field-effect pipe, and the model selected is IRFZ22;
RP is linear potentiometer, and the resistance of use is 220K Ω;
The resistance of resistance R1 is 18K Ω; Resistance R2 resistance is 62K Ω; Resistance R3 resistance is 330K Ω;
LED1 ~ LED8 is white light-emitting diode, selects ￠ 5 super brightness white light-emitting diode.
Circuit production main points and circuit debugging
Because the circuit structure of light-operated LED mini light night is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model only needs to carry out simple debugging and can normally work;
The shell of light-operated LED mini light night selects suitable size plastic housing, on housing face-plate, position corresponding with the sensitive surface of photo resistance RG reserves loophole, to make ambient light testing circuit normally work, but loophole necessarily can not by LED night lamp voluntarily light interference and misoperation;
When circuit debugging, first cover the sensitive surface of photo resistance RG by one piece of paperboard, in order to simulate night and half-light environment.Now, composite amplifier should be started working, and drives white light-emitting diode LED1 ~ LED8 luminous by enhancement mode N channel field-effect pipe VT1.
Then, the paperboard on occlusion removal photo resistance RG, now, composite amplifier should quit work, and because enhancement mode N channel field-effect pipe VT1 ends, white light-emitting diode LED1 ~ LED8 extinguishes because of dead electricity, illustrate that ambient light testing circuit is working properly, whole circuit can normally use.
In the on-state, between the source electrode of enhancement mode N channel field-effect pipe VT1 and drain electrode, pressure drop is very little, and its pressure drop can be ignored substantially, therefore driving power is very large for enhancement mode N channel field-effect pipe VT1; If sensation white light-emitting diode brightness is inadequate, can the connected mode of light-emitting diode on accompanying drawing 1 circuit working schematic diagram to specifications, suitably increase the quantity of white light-emitting diode.
Circuit components layout of the present utility model, circuit structure design, its shape and size etc. thereof of outward appearance are not all key technologies of the present utility model; neither the claimed technology contents of the utility model; because not affecting the utility model specific implementation process, therefore do not illustrate one by one in the description.
Claims (1)
1. a light-operated LED mini light night, it comprises 12V DC power supply, ambient light testing circuit, detection signal composite amplifier, LED power drive circuit, it is characterized in that:
Described ambient light testing circuit is made up of linear potentiometer RP, resistance R1 and photo resistance RG, one end of base stage connecting resistance R1 of NPN type triode VT1 and one end of photo resistance RG, the other end of resistance R1 connects one end of linear potentiometer RP, the other end of linear potentiometer RP and the other end connection circuit ground GND of movable end connection circuit positive pole VCC, photo resistance RG thereof;
Described detection signal composite amplifier is made up of NPN type triode VT1, PNP type triode VT2 and resistance R2, the collector electrode of NPN type triode VT1 connects the base stage of PNP type triode VT2, the emitter connection circuit ground GND of NPN type triode VT1, the collector electrode of PNP type triode VT2 emitter connection circuit positive pole VCC, PNP type triode VT2 is by resistance R2 connection circuit ground GND;
Described LED power drive circuit is by resistance R3, enhancement mode N channel field-effect pipe VT1 and white light-emitting diode LED1 ~ LED8 forms, 3rd pin of time-base circuit IC1 connects the grid of enhancement mode N channel field-effect pipe VT1 by resistance R3, the source electrode connection circuit ground GND of enhancement mode N channel field-effect pipe VT1, the drain electrode of enhancement mode N channel field-effect pipe VT1 connects the negative pole of white light-emitting diode LED4 and the negative pole of white light-emitting diode LED8, white light-emitting diode LED1 ~ LED4 contacts mutually, white light-emitting diode LED5 ~ LED8 contacts mutually, the positive pole of white light-emitting diode LED1 and the positive pole connection circuit positive pole VCC of white light-emitting diode LED5,
Described 12V DC power anode connection circuit positive pole VCC, 12V DC power cathode connection circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722049.8U CN204968185U (en) | 2015-09-17 | 2015-09-17 | Little night -light of light -operated LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722049.8U CN204968185U (en) | 2015-09-17 | 2015-09-17 | Little night -light of light -operated LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204968185U true CN204968185U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520722049.8U Expired - Fee Related CN204968185U (en) | 2015-09-17 | 2015-09-17 | Little night -light of light -operated LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204968185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101582A (en) * | 2015-09-17 | 2015-11-25 | 黄月华 | Light-controlled light-emitting diode (LED) night lamp |
| CN106061034A (en) * | 2016-07-18 | 2016-10-26 | 黄月华 | LED street lamp capable of following intensity changes of ambient light |
-
2015
- 2015-09-17 CN CN201520722049.8U patent/CN204968185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101582A (en) * | 2015-09-17 | 2015-11-25 | 黄月华 | Light-controlled light-emitting diode (LED) night lamp |
| CN106061034A (en) * | 2016-07-18 | 2016-10-26 | 黄月华 | LED street lamp capable of following intensity changes of ambient light |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20160917 |