CN205142626U - LED eyeshield desk lamp control circuit - Google Patents
LED eyeshield desk lamp control circuit Download PDFInfo
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- CN205142626U CN205142626U CN201520923282.2U CN201520923282U CN205142626U CN 205142626 U CN205142626 U CN 205142626U CN 201520923282 U CN201520923282 U CN 201520923282U CN 205142626 U CN205142626 U CN 205142626U
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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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Abstract
The utility model discloses a LED eyeshield desk lamp control circuit, including diode D1, chip IC1, bidirectional thyristor Q1 and electric capacity C5, USB interface J's foot 1 is connected to diode D1's positive pole, USB interface J's foot 4 and chip IC1's pin 2 are connected to diode D1's the negative pole connecting resistance R1 and electric capacity C1's the other end, chip IC1's pin 1 is connected to resistance R1's the other end, chip IC1's pin 5 connecting resistance R2, electric capacity C2, chip IC2's pin 2 and chip IC2's pin 6, diode D2's negative pole is connected to resistance R2's the other end, diode D5's negative pole, electric capacity C4, chip IC2's pin 4 and chip IC2's pin 8. The utility model discloses LED eyeshield desk lamp control circuit simple structure, components and parts are few, and its uses the USB interface that is connected with the computer and light -dependent control element as control switch, the computer start and the environment bright degree when lower the meeting open the desk lamp automatically, get to the purpose of eyeshield, therefore have convenient to use, protect your eyesight and energy -saving power's advantage.
Description
Technical field
The utility model relates to a kind of LED controller, specifically a kind of LED eye protection table lamp control circuit.
Background technology
Along with the negative effect caused by Global Greenhouse Effect constantly manifests, every country is all using the major issue that energy-saving and emission-reduction must be considered in native economic development in the world, the emerging power-saving technology that LED illumination technology is arisen at the historic moment just under this background.Along with the raising of LED production technology, production cost constantly reduces, and white light LEDs replaces traditional lighting source to become possibility.Current computer has become the important tool of Students ' Learning and amusement, a lot of student does not note the intensity of light when using computer, if environmental light intensity more secretly will cause larger infringement to eyesight, and a lot of student is easy to ignore this problem when using computer, causes eyesight to reduce.
Utility model content
The purpose of this utility model is to provide a kind of LED eye protection table lamp control circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of LED eye protection table lamp control circuit, comprises diode D1, chip IC 1, bidirectional thyristor Q1 and electric capacity C5, the anode of described diode D1 connects the pin 1 of USB interface J, the negative electrode contact resistance R1 of diode D1 is connected the pin 4 of USB interface J and the pin 2 of chip IC 1 with the other end of electric capacity C1, the other end of resistance R1 connects the pin 1 of chip IC 1, the pin 5 contact resistance R2 of chip IC 1, electric capacity C2, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the other end of resistance R2 connects the negative electrode of diode D2, the negative electrode of diode D5, electric capacity C4, the pin 4 of chip IC 2 and the pin 8 of chip IC 2, the pin 3 contact resistance R3 of chip IC 2, the other end of resistance R3 connects the anode of diode D4, the negative electrode contact resistance R7 of diode D4 and the control pole of bidirectional thyristor Q1, and the pin 4 of chip IC 1 connects the other end of electric capacity C2, the other end of electric capacity C4, electric capacity C6, the anode of diode D5, the anode of diode D3, resistance R7, a main electrode of bidirectional thyristor Q1, the pin 1 of socket A and chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C6, the anode contact resistance R4 of diode D2 and the negative electrode of diode D3, the other end contact resistance R5 of resistance R4, the other end of resistance R6 and electric capacity C5, the other end of resistance R5 connects the other end of electric capacity C5, the other end of LED group H and socket A, the other end of LED group H connects another main electrode of bidirectional thyristor Q1, and described chip IC 1 is 4N25 optical coupler, and the model of chip IC 2 is NE555.
As preferred version of the present utility model: described resistance R7 is photo resistance.
Compared with prior art; the beneficial effects of the utility model are: the utility model LED eye protection table lamp control circuit structure is simple, components and parts are few; it uses the USB interface and light-dependent control element that are connected with computer as control switch; launch computer and environmental light brightness lower time automatically can open desk lamp; get to the object of eyeshield, therefore there is the advantage of easy to use, vision protection and energy saving.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of LED eye protection table lamp control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of LED eye protection table lamp control circuit, comprises diode D1, chip IC 1, bidirectional thyristor Q1 and electric capacity C5, the anode of described diode D1 connects the pin 1 of USB interface J, the negative electrode contact resistance R1 of diode D1 is connected the pin 4 of USB interface J and the pin 2 of chip IC 1 with the other end of electric capacity C1, the other end of resistance R1 connects the pin 1 of chip IC 1, the pin 5 contact resistance R2 of chip IC 1, electric capacity C2, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the other end of resistance R2 connects the negative electrode of diode D2, the negative electrode of diode D5, electric capacity C4, the pin 4 of chip IC 2 and the pin 8 of chip IC 2, the pin 3 contact resistance R3 of chip IC 2, the other end of resistance R3 connects the anode of diode D4, the negative electrode contact resistance R7 of diode D4 and the control pole of bidirectional thyristor Q1, and the pin 4 of chip IC 1 connects the other end of electric capacity C2, the other end of electric capacity C4, electric capacity C6, the anode of diode D5, the anode of diode D3, resistance R7, a main electrode of bidirectional thyristor Q1, the pin 1 of socket A and chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C6, the anode contact resistance R4 of diode D2 and the negative electrode of diode D3, the other end contact resistance R5 of resistance R4, the other end of resistance R6 and electric capacity C5, the other end of resistance R5 connects the other end of electric capacity C5, the other end of LED group H and socket A, the other end of LED group H connects another main electrode of bidirectional thyristor Q1, and described chip IC 1 is 4N25 optical coupler, and the model of chip IC 2 is NE555.
Resistance R7 is photo resistance.
Operation principle of the present utility model is: computer and lamp control circuit are separated by optical coupler IC1.Electric capacity C1 is used for the varying component that may exist in bypass USB port.R1 is used for limiting input current.When computer is opened, the 5V direct voltage in USB port adds to optical coupler IC1, and IC1 is conducting immediately, and after conducting, it exports the 2 and 6 pin current potentials dragging down IC2.So the output of IC2 uprises, if now environmental light intensity is higher, then photo resistance R7 is low resistance, the control pole of bidirectional thyristor Q1 must not be electric, when only having environmental light intensity lower, resistance R7 is high resistance, and bidirectional thyristor Q1 obtains electric by diode D4, complete the current supply circuit of light fixture H, so desk lamp is connected luminous.When computer turns off.The input voltage that it is connected to optical coupler disappears immediately, makes 2 of timer chip and 6 pin current potentials uprise and cannot exercise its normal function, at this moment its output pin 3 step-down current potential, LED group H automatic distinguishing.
Claims (2)
1. a LED eye protection table lamp control circuit, comprises diode D1, chip IC 1, bidirectional thyristor Q1 and electric capacity C5, it is characterized in that, the anode of described diode D1 connects the pin 1 of USB interface J, the negative electrode contact resistance R1 of diode D1 is connected the pin 4 of USB interface J and the pin 2 of chip IC 1 with the other end of electric capacity C1, the other end of resistance R1 connects the pin 1 of chip IC 1, the pin 5 contact resistance R2 of chip IC 1, electric capacity C2, the pin 2 of chip IC 2 and the pin 6 of chip IC 2, the other end of resistance R2 connects the negative electrode of diode D2, the negative electrode of diode D5, electric capacity C4, the pin 4 of chip IC 2 and the pin 8 of chip IC 2, the pin 3 contact resistance R3 of chip IC 2, the other end of resistance R3 connects the anode of diode D4, the negative electrode contact resistance R7 of diode D4 and the control pole of bidirectional thyristor Q1, and the pin 4 of chip IC 1 connects the other end of electric capacity C2, the other end of electric capacity C4, electric capacity C6, the anode of diode D5, the anode of diode D3, resistance R7, a main electrode of bidirectional thyristor Q1, the pin 1 of socket A and chip IC 2, the pin 5 of chip IC 2 connects the other end of electric capacity C6, the anode contact resistance R4 of diode D2 and the negative electrode of diode D3, the other end contact resistance R5 of resistance R4, the other end of resistance R6 and electric capacity C5, the other end of resistance R5 connects the other end of electric capacity C5, the other end of LED group H and socket A, the other end of LED group H connects another main electrode of bidirectional thyristor Q1, and described chip IC 1 is 4N25 optical coupler, and the model of chip IC 2 is NE555.
2. according to a kind of LED eye protection table lamp control circuit according to claim 1, it is characterized in that, described resistance R7 is photo resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923282.2U CN205142626U (en) | 2015-11-19 | 2015-11-19 | LED eyeshield desk lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520923282.2U CN205142626U (en) | 2015-11-19 | 2015-11-19 | LED eyeshield desk lamp control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205142626U true CN205142626U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520923282.2U Expired - Fee Related CN205142626U (en) | 2015-11-19 | 2015-11-19 | LED eyeshield desk lamp control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205142626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838696A (en) * | 2016-12-26 | 2017-06-13 | 海宁泰诺照明电器有限公司 | A kind of multiduty LED eye protection table lamp |
-
2015
- 2015-11-19 CN CN201520923282.2U patent/CN205142626U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838696A (en) * | 2016-12-26 | 2017-06-13 | 海宁泰诺照明电器有限公司 | A kind of multiduty LED eye protection table lamp |
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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: 20160406 Termination date: 20161119 |