Invention Grant
- Patent Title: LED driver and control method
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Application No.: US15110399Application Date: 2014-12-29
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Publication No.: US09839080B2Publication Date: 2017-12-05
- Inventor: Liwen Zhou , Qi Zhang , Shujin Zhuang
- Applicant: PHILIPS LIGHTING HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Agent Akarsh P. Belagodu
- Priority: WOPCT/CN2014/000062 20140117; EP14166025 20140425
- International Application: PCT/EP2014/079350 WO 20141229
- International Announcement: WO2015/106944 WO 20150723
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08
Abstract:
A DC-DC converter has a pulse width control circuit producing a sequence of pulses, with an on time, an off time and a switching frequency. The on time as well as the switching frequency are both varied in dependence on a dimming setting.
Public/Granted literature
- US20160338158A1 LED DRIVER AND CONTROL METHOD Public/Granted day:2016-11-17
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