APPARATUS AND METHOD FOR SIMULTANEOUSLY ADJUSTING BRIGHTNESS AND COLOR TEMPERATURE, AND LED LAMP

WIPO Patent Application WO/2019/047563

A1

Disclosed are an apparatus and method for simultaneously adjusting brightness and color temperature, and an LED lamp. The apparatus for simultaneously adjusting brightness and color temperature comprises a phase control dimmer, a rectification module, a phase detection module, a current control module and an LED module. Cutting the phase of an input alternating current by means of the phase control dimmer changes the effective voltage of the alternating current, then the cut alternating current is rectified by the rectification module and output to the LED module, thus adjusting the brightness of the LED module; information about the cut phase is detected by the phase detection module and a current control signal is output to a current control module according to said cut phase information, and the current control module controls change in the brightness ratio of mixed colors of the LED module according to the current control signal and adjusts the color temperature of the LED module. Synchronous adjustment of brightness and color temperature can be realized by the phase control dimmer; the control circuit is simple, and the color temperature adjustment range is wide; and there is also no additional power consumption.

MAI YANQUAN (CN)
DENG XUNSHENG (CN)
CHEN BO (CN)
CHEN XIAOYU (CN)
WANG WENPAN (CN)

PCT/CN2018/088365

March 14, 2019

May 25, 2018

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SHENZHEN SENDIS SEMICONDUCTOR CO LTD (CN)

H05B44/00

CN107580387A	2018-01-12
CN105657909A	2016-06-08
CN106804070A	2017-06-06
CN105592587A	2016-05-18
US20080179497A1	2008-07-31

JOHNSON INTELLECTUAL PROPERTY AGENCY(SHENZHEN) (CN)

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