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HYBRID DIMMING FOR LIGHTING CIRCUITS
专利权人:
FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人:
YANG Seunguk,EUM Hyunchul,LEE Eungwoo
申请号:
US201715655025
公开号:
US2018054865(A1)
申请日:
2017.07.20
申请国别(地区):
美国
年份:
2018
代理人:
摘要:
A lighting circuit includes a light emitting diode (LED), a transistor that controls a current through the LED, and a controller integrated circuit (IC) that controls the transistor to vary a brightness of the LED. The controller IC has a dimming pin that receives a hybrid dimming signal from a dimming input circuit. The dimming input circuit receives pulse width modulation (PWM) dimming signals and generates the hybrid dimming signal as a PWM dimming signal, an analog dimming signal, or both depending on the received PWM dimming signals.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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