Invention Grant
- Patent Title: LED dimming device and LED dimming and driving circuit
- Patent Title (中): LED调光装置和LED调光驱动电路
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Application No.: US13528804Application Date: 2012-06-20
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Publication No.: US09125270B2Publication Date: 2015-09-01
- Inventor: Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
- Applicant: Weiming Liao , Matthew Man Ho Ku , Yue Zheng , Lifang Guo , Guangyao You
- Applicant Address: CN Shenzhen
- Assignee: FREMONT MICRO DEVICES (SZ) LIMITED
- Current Assignee: FREMONT MICRO DEVICES (SZ) LIMITED
- Current Assignee Address: CN Shenzhen
- Agency: Locke Lord LLP
- Agent Tim Tingking Xia, Esq.
- Priority: CN201210064668 20120313
- Main IPC: H05B33/08
- IPC: H05B33/08 ; H05B37/02 ; H05B39/04 ; H05B41/36 ; G05F1/00
Abstract:
A LED dimming device, and a LED dimming and a driving circuit using such LED dimming device are discussed. In present embodiment, the LED dimming device multiplexes an inputting switch and/or a sampling module of the LED driving circuit for dimming. such LED dimming device will not affect the sine waves of input current, in such a way, power factor and work efficiency will be increased while the harmonic coefficient and interference signal will be reduced.
Public/Granted literature
- US20130241424A1 LED DIMMING DEVICE AND LED DIMMING AND DRIVING CIRCUIT Public/Granted day:2013-09-19
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