CN202679720U - LED lamp based on high color rendering index and possessing adjustable brightness and color temperature - Google Patents
LED lamp based on high color rendering index and possessing adjustable brightness and color temperature Download PDFInfo
- Publication number
- CN202679720U CN202679720U CN 201220233660 CN201220233660U CN202679720U CN 202679720 U CN202679720 U CN 202679720U CN 201220233660 CN201220233660 CN 201220233660 CN 201220233660 U CN201220233660 U CN 201220233660U CN 202679720 U CN202679720 U CN 202679720U
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- led lamp
- lamp group
- driving circuit
- light modulation
- dimming driving
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Abstract
The utility model discloses a LED lamp based on high color rendering index and possessing adjustable brightness and color temperature, comprising a cold white light LED lamp set, a warm white light LED lamp set, an amber light LED set, a microcontroller, a first light modulation drive circuit, a second light modulation drive circuit, a third light modulation drive circuit and a power supply unit. The microcontroller respectively emits PWM control signals to the three sets of light modulation drive circuits in dependence on external light modulation signals. The first light modulation drive circuit changes matching colors of the cold white light LED lamp set and the warm white light LED lamp set in dependence on the PWM control signals to realize color temperature adjustment; the second light modulation drive circuit controls the brightness change of the cold white light LED lamp set and the warm white light LED lamp set in dependence on the PWM control signals when a color temperature is determined; and the third light modulation drive circuit controls the amber light LED set in dependence on the PWM control signals and controls color rendering index of each color temperature point through color compensation. The power supply unit supplies stable voltage for the microcontroller and each LED lamp set; the external light modulation signals are transmitted to the microcontroller through a button light modulation or remote light modulation mode.
Description
Technical field
The utility model relates to a kind of lighting, specifically, relates to the high color rendering index (CRI) LED lamp that a kind of brightness and colour temperature can be regulated arbitrarily.
Background technology
At present, some LED light fixture can be regulated colour temperature and brightness on the market, the technological means that they adopt all is by the different colour temperature of output after the LED adjusting mixing of two kinds of different-colours (cold white light and warm white), and current white light LEDs technology, the main blue chip that adopts covers the manufacture craft that is coated with fluorescent material, this technology has followed the principle of luminosity of fluorescent tube in a certain sense, this technology is owing to ruddiness and green glow composition lacks, make it just to exist on congenital defective to the color rendering index deficiency, cold white light LEDs color rendering index on the market all is lower than 80, therefore when regulating colour temperature color rendering index also along with variation, particularly colour temperature be adjusted to 4500K when above color rendering index all be lower than 80, so just do not satisfy the demand of needs high color rendering index (CRI) on the market.
The utility model content
For above deficiency, the utility model provides a kind of brightness and colour temperature to regulate arbitrarily, and keep the brightness of high color rendering index (CRI) and colour temperature adjustable based on high color rendering index (CRI) LED lamp, it comprises cold white LED lamp group, the warm white LED lamp group, amber light LED lamp group, microcontroller, the first dimming driving circuit, the second dimming driving circuit and the 3rd dimming driving circuit, described microcontroller is given respectively the first dimming driving circuit according to the external dimmer signal, the second dimming driving circuit and the 3rd dimming driving circuit send pwm control signal, and the first dimming driving circuit is realized the colour temperature adjusting according to the proportioning color of the cold white LED lamp group of pwm control signal control break that receives and warm white LED lamp group; The second dimming driving circuit is after colour temperature is determined, the brightness of controlling cold white LED lamp group and warm white LED lamp group according to the pwm control signal that receives changes; The 3rd dimming driving circuit is controlled the color rendering index of each color temperature point by color compensating according to the pwm control signal control amber light LED lamp group that receives.
Described external dimmer signal adopts the mode of button light modulation or remote control light modulating to be sent to described microcontroller.
It also comprises a power subsystem that burning voltage is provided to microcontroller, cold white LED lamp group, warm white LED lamp group and amber light LED lamp group.
The beneficial effects of the utility model: the utility model can be sent to microcontroller with the external dimmer signal by modes such as button light modulation or remote control light modulatings, microcontroller receives the external dimmer signal and automatically identifies the dim signal source, decode, then change into pwm signal and export three groups of dimming driving circuits, in the 2700K-7000K scope, can regulate arbitrarily than color realization colour temperature by cold white LED lamp group and warm white LED lamp assembly, and can from 1% to 100% adjustable arbitrarily in certain color temperature point brightness, by color rendering index on each color temperature point behind the color compensating of amber LED greater than 90.
Description of drawings
Fig. 1 is the adjustable schematic diagram of the function based on high color rendering index (CRI) LED lamp of brightness of the present utility model and colour temperature.
Embodiment
Below in conjunction with accompanying drawing the utility model is further set forth.
As shown in Figure 1, what brightness of the present utility model and colour temperature were adjustable comprises cold white LED lamp group based on high color rendering index (CRI) LED lamp, the warm white LED lamp group, amber light LED lamp group, microcontroller, the first dimming driving circuit, the second dimming driving circuit, the 3rd dimming driving circuit and power subsystem, microcontroller is given respectively the first dimming driving circuit according to the external dimmer signal, the second dimming driving circuit and the 3rd dimming driving circuit send pwm control signal, and the first dimming driving circuit is realized the colour temperature adjusting according to the proportioning color of the cold white LED lamp group of pwm control signal control break that receives and warm white LED lamp group; The second dimming driving circuit is after colour temperature is determined, the brightness of controlling cold white LED lamp group and warm white LED lamp group according to the pwm control signal that receives changes; The 3rd dimming driving circuit is controlled the color rendering index of each color temperature point by color compensating according to the pwm control signal control amber light LED lamp group that receives, power subsystem is used to microcontroller, cold white LED lamp group, warm white LED lamp group and amber light LED lamp group that burning voltage is provided, wherein, the external dimmer signal can adopt the mode of button light modulation or remote control light modulating to be sent to microcontroller.
In the working control process, provide reliable and stable voltage by power subsystem to system and each LED lamp group, preset in the microcontroller for the automatic identification of different dim signals and decoded and recognizer, the operator sends the external dimmer signal by modes such as button light modulation or remote control light modulatings to microcontroller, microcontroller receives the external dimmer signal instruction and automatically identifies the dim signal source, decode, change into PWM conditioning signal (brightness regulated signal, colour temperature conditioning signal and color rendering index conditioning signal), the proportioning color that drives the cold white LED lamp group of the first dimming driving circuit control break and warm white LED lamp group according to the colour temperature conditioning signal realizes that colour temperature can regulate arbitrarily in the 2700K-7000K scope, after determining color temperature point, driving the second dimming driving circuit according to brightness regulated signal, to control the brightness of cold white LED lamp group and warm white LED lamp group can from 1% to 100% adjustable arbitrarily, drives the 3rd dimming driving circuit control amber light LED lamp group is controlled each color temperature point by color compensating color rendering index (greater than 90) according to the color rendering index conditioning signal.
The above only is better embodiment of the present invention, the present invention is not limited to above-mentioned execution mode, in implementation process, may there be local small structural modification, if various changes of the present invention or modification are not broken away from the spirit and scope of the present invention, and belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and modification.
Claims (3)
- A brightness and colour temperature adjustable based on high color rendering index (CRI) LED lamp, it is characterized in that, it comprises cold white LED lamp group, the warm white LED lamp group, amber light LED lamp group, microcontroller, the first dimming driving circuit, the second dimming driving circuit and the 3rd dimming driving circuit, described microcontroller is given respectively the first dimming driving circuit according to the external dimmer signal, the second dimming driving circuit and the 3rd dimming driving circuit send pwm control signal, and the first dimming driving circuit is realized the colour temperature adjusting according to the proportioning color of the cold white LED lamp group of pwm control signal control break that receives and warm white LED lamp group; The second dimming driving circuit is after colour temperature is determined, the brightness of controlling cold white LED lamp group and warm white LED lamp group according to the pwm control signal that receives changes; The 3rd dimming driving circuit is controlled the color rendering index of each color temperature point by color compensating according to the pwm control signal control amber light LED lamp group that receives.
- Brightness according to claim 1 and colour temperature adjustable based on high color rendering index (CRI) LED lamp, it is characterized in that, described external dimmer signal adopts the mode of button light modulation or remote control light modulating to be sent to described microcontroller.
- Brightness according to claim 1 and colour temperature adjustable based on high color rendering index (CRI) LED lamp, it is characterized in that, it also comprises a power subsystem of burning voltage being provided for microcontroller, cold white LED lamp group, warm white LED lamp group and amber light LED lamp group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233660 CN202679720U (en) | 2012-05-22 | 2012-05-22 | LED lamp based on high color rendering index and possessing adjustable brightness and color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233660 CN202679720U (en) | 2012-05-22 | 2012-05-22 | LED lamp based on high color rendering index and possessing adjustable brightness and color temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202679720U true CN202679720U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220233660 Expired - Lifetime CN202679720U (en) | 2012-05-22 | 2012-05-22 | LED lamp based on high color rendering index and possessing adjustable brightness and color temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202679720U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152941A (en) * | 2013-02-27 | 2013-06-12 | 深圳市华高芯源科技有限公司 | LED (Light Emitting Diode) lamp capable of adjusting color temperature |
| CN104507197A (en) * | 2014-11-12 | 2015-04-08 | 浙江凯耀照明股份有限公司 | A circuit for LED dimming, adjusting color temperature and mixing color and method for controlling the same |
| CN104797047A (en) * | 2015-04-07 | 2015-07-22 | 浙江嘉乐智能技术有限公司 | LED color temperature adjusting device and method based on single-channel PWM (pulse width modulation) |
| CN105444043A (en) * | 2015-12-31 | 2016-03-30 | 重庆市光遥光电节能科技有限公司 | Fiber transmission eye-protective desk lamp |
| CN105491761A (en) * | 2015-12-29 | 2016-04-13 | 生迪智慧科技有限公司 | LED lamp capable of adjusting color temperature and color temperature adjustment method for LED lamp |
| CN107333359A (en) * | 2017-08-15 | 2017-11-07 | 苏州科技大学 | The LED Mixed Lights Illuminations system and its light-dimming method of a kind of adjustable color |
| CN107809814A (en) * | 2016-09-08 | 2018-03-16 | 天津工业大学 | A kind of four-way LED light adjusting systems for synthesizing high color rendering index (CRI) white light |
| CN108200691A (en) * | 2018-01-19 | 2018-06-22 | 深圳云控照明信息科技有限公司 | A kind of LED PAR lamps driving circuit and LED PAR lamps |
| CN110553178A (en) * | 2019-08-30 | 2019-12-10 | 东莞锐视光电科技有限公司 | Device capable of adjusting and outputting wide color temperature and high color rendering index light |
-
2012
- 2012-05-22 CN CN 201220233660 patent/CN202679720U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152941A (en) * | 2013-02-27 | 2013-06-12 | 深圳市华高芯源科技有限公司 | LED (Light Emitting Diode) lamp capable of adjusting color temperature |
| CN104507197A (en) * | 2014-11-12 | 2015-04-08 | 浙江凯耀照明股份有限公司 | A circuit for LED dimming, adjusting color temperature and mixing color and method for controlling the same |
| CN104797047A (en) * | 2015-04-07 | 2015-07-22 | 浙江嘉乐智能技术有限公司 | LED color temperature adjusting device and method based on single-channel PWM (pulse width modulation) |
| CN105491761A (en) * | 2015-12-29 | 2016-04-13 | 生迪智慧科技有限公司 | LED lamp capable of adjusting color temperature and color temperature adjustment method for LED lamp |
| CN105491761B (en) * | 2015-12-29 | 2018-08-14 | 生迪智慧科技有限公司 | The LED light of adjustable color temperature and the color temperature adjusting method of LED light |
| CN105444043A (en) * | 2015-12-31 | 2016-03-30 | 重庆市光遥光电节能科技有限公司 | Fiber transmission eye-protective desk lamp |
| CN107809814A (en) * | 2016-09-08 | 2018-03-16 | 天津工业大学 | A kind of four-way LED light adjusting systems for synthesizing high color rendering index (CRI) white light |
| CN107333359A (en) * | 2017-08-15 | 2017-11-07 | 苏州科技大学 | The LED Mixed Lights Illuminations system and its light-dimming method of a kind of adjustable color |
| CN108200691A (en) * | 2018-01-19 | 2018-06-22 | 深圳云控照明信息科技有限公司 | A kind of LED PAR lamps driving circuit and LED PAR lamps |
| CN110553178A (en) * | 2019-08-30 | 2019-12-10 | 东莞锐视光电科技有限公司 | Device capable of adjusting and outputting wide color temperature and high color rendering index light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |