CN201611025U - LED lamp with adjustable light - Google Patents
LED lamp with adjustable light Download PDFInfo
- Publication number
- CN201611025U CN201611025U CN2009201919569U CN200920191956U CN201611025U CN 201611025 U CN201611025 U CN 201611025U CN 2009201919569 U CN2009201919569 U CN 2009201919569U CN 200920191956 U CN200920191956 U CN 200920191956U CN 201611025 U CN201611025 U CN 201611025U
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- China
- Prior art keywords
- led lamp
- light
- lamp tube
- led
- fluorescent tube
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- Expired - Fee Related
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Abstract
The utility model discloses an LED lamp with adjustable light, comprising an LED lamp tube, a master control unit of the LED lamp tube, a light-adjusting unit and a power supply control switch, wherein the LED lamp tube is formed by connecting a plurality of LED lamp strings in parallel; the light-adjusting unit and the power supply control switch are integrated and installed on a plastic panel of the LED lamp; the light-adjusting unit comprises a PWM chip and an adjustable resistor RT connected with a PWMD terminal of the PWM chip; and the other end of the adjustable resistor RT is grounding. By adopting the lamp tube and light-adjusting control for separating design, the LED lamp can conveniently adjust the brightness of the LED lamp, and maintain the connection between the lamp tube and the light-adjusting control part to be within a certain range, so that the current signal output into the lamp tube by light-adjusting control has no remarkable attenuation, the flexibility of the mounting position can be conveniently selected, the brightness can be conveniently and better selected in the place using the LED lamp tube, the needed brightness can be reached, and the LED lamp is energy-saving and environment-friendly.
Description
Technical field
The utility model relates to a kind of LED lamp of tunable optical.
Background technology
Progress along with human society, illuminating industry develops rapidly, particularly semiconductor LED illumination in recent years develops rapidly, the illuminating product kind that with LED is light source is also more and more, wherein the LED fluorescent tube also formed gradually at these 2 years, and the LED fluorescent tube of Xiao Shouing just has fixing power and brightness in the market, can not regulate power of lamp tube and brightness oneself with artificial selection, this is undoubtedly the defective of the LED fluorescent tube of green energy conservation.
Summary of the invention
The utility model at present LED fluorescent tube towards the direction of a functionalization, a kind of LED lamp of tunable optical is provided.
The technical scheme that the utility model solves existing issue is: a kind of Dimmable LED lamp, the main control unit, light modulation unit, the power control switch that comprise LED fluorescent tube, LED fluorescent tube, the LED lamp string that described LED fluorescent tube is some parallel connections, described light modulation unit and power control switch are integrated and be installed in the plastic front board of LED lamp, described light modulation unit comprises PWM chip and the adjustable resistance RT that is connected with the PWMD terminal of PWM chip, described adjustable resistance RT other end ground connection.
The utility model compared with prior art, carry out the separate type design by adopting fluorescent tube and brightness adjustment control, the convenient brightness of regulating the LED fluorescent tube, the maintenance fluorescent tube is connected within the specific limits with the brightness adjustment control part, brightness adjustment control outputs to the lamp tube current signal and does not just have obvious decay, can conveniently select the flexibility of installation site like this, conveniently can better select brightness in LED fluorescent tube field of employment, reach the brightness that needs, energy-conserving and environment-protective.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the circuit diagram of the utility model light modulation unit.
The specific embodiment
Referring to Fig. 1-2, the implementation case comprises: the LED fluorescent tube, be used for that LED fluorescent tube input voltage, input current are constant, the driving main control unit of temperature-compensating, light modulation unit and power control switch, the LED fluorescent tube is the LED lamp string of some parallel connections, be parallel with 12 LED lamp strings in the implementation case, every LED lamp string is in series with 12 LED lamps; Described light modulation unit and power control switch are integrated and be installed on the fire-retardant of LED lamp and mould in the plastic front board; Light modulation unit 3 comprises PWM chip and adjustable resistance RT, adjustable resistance RT other end ground connection, the other end is connected with the PWMD terminal, regulate the resistance of RT, change the signal of control chip PWMD end pin and ground end, the PWM light modulation realizes that by apply the low frequency square-wave signal at the PWMD chip pin when this pin PWMD signal was low level, gate drivers Q1 closed; When the PWMD signal was high level, gate drivers Q1 opened, and moved 3.3V on the pwm chip inside when floating sky, and adjustable resistance RT changes the resistance of holding with ground, realizes that main control unit outputs to the brightness that LED lamp tube current size changes the LED fluorescent tube; Corresponding main control unit outputed to also decline accordingly of voltage in the fluorescent tube when brightness descended, and had realized that like this power of whole fluorescent tube also descends thereupon, and power consumption had also descended when brightness descended, and reached energy-conservation effect.
Claims (3)
1. Dimmable LED lamp, the main control unit, light modulation unit, the power control switch that comprise LED fluorescent tube, LED fluorescent tube, it is characterized in that: the LED lamp string that described LED fluorescent tube is some parallel connections, described light modulation unit and power control switch are integrated and be installed in the plastic front board of LED lamp, described light modulation unit comprises PWM chip and the adjustable resistance RT that is connected with the PWMD terminal of PWM chip, described adjustable resistance RT other end ground connection.
2. Dimmable LED lamp as claimed in claim 1 is characterized in that: described every LED lamp string is in series with 12 LED lamps.
3. Dimmable LED lamp as claimed in claim 1 is characterized in that: described plastic front board is the flame retardant plastics panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201919569U CN201611025U (en) | 2009-08-20 | 2009-08-20 | LED lamp with adjustable light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201919569U CN201611025U (en) | 2009-08-20 | 2009-08-20 | LED lamp with adjustable light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611025U true CN201611025U (en) | 2010-10-20 |
Family
ID=42961659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201919569U Expired - Fee Related CN201611025U (en) | 2009-08-20 | 2009-08-20 | LED lamp with adjustable light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611025U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651931A (en) * | 2011-02-25 | 2012-08-29 | 海洋王照明科技股份有限公司 | LED (Light-Emitting Diode) dimming drive circuit |
| CN102651930A (en) * | 2011-02-25 | 2012-08-29 | 海洋王照明科技股份有限公司 | LED (Light-Emitting Diode) dimming drive circuit |
| CN102769959A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | LED light-dimming driving circuit |
| CN106941751A (en) * | 2017-04-27 | 2017-07-11 | 宁波迪明斯电子科技有限公司 | A kind of drive circuit of variable voltage |
| CN109587870A (en) * | 2017-09-29 | 2019-04-05 | 科斯莫灯饰公司 | Single-point controls lamp string circuit and its method |
| CN113464857A (en) * | 2021-05-31 | 2021-10-01 | 厦门普为光电科技有限公司 | Splicing type lamp tube capable of adjusting color temperature power |
-
2009
- 2009-08-20 CN CN2009201919569U patent/CN201611025U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651931A (en) * | 2011-02-25 | 2012-08-29 | 海洋王照明科技股份有限公司 | LED (Light-Emitting Diode) dimming drive circuit |
| CN102651930A (en) * | 2011-02-25 | 2012-08-29 | 海洋王照明科技股份有限公司 | LED (Light-Emitting Diode) dimming drive circuit |
| CN102651931B (en) * | 2011-02-25 | 2015-01-07 | 海洋王照明科技股份有限公司 | LED (Light-Emitting Diode) dimming drive circuit |
| CN102769959A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | LED light-dimming driving circuit |
| CN106941751A (en) * | 2017-04-27 | 2017-07-11 | 宁波迪明斯电子科技有限公司 | A kind of drive circuit of variable voltage |
| CN109587870A (en) * | 2017-09-29 | 2019-04-05 | 科斯莫灯饰公司 | Single-point controls lamp string circuit and its method |
| CN109587870B (en) * | 2017-09-29 | 2021-07-13 | 科斯莫灯饰公司 | Single-point control lamp string circuit and method thereof |
| CN113464857A (en) * | 2021-05-31 | 2021-10-01 | 厦门普为光电科技有限公司 | Splicing type lamp tube capable of adjusting color temperature power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20110820 |