Invention Grant
- Patent Title: LED drive circuit and LED illumination light
- Patent Title (中): LED驱动电路和LED照明灯
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Application No.: US13456791Application Date: 2012-04-26
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Publication No.: US08970123B2Publication Date: 2015-03-03
- Inventor: Atsushi Kanamori , Hirohisa Warita , Takayuki Shimizu
- Applicant: Atsushi Kanamori , Hirohisa Warita , Takayuki Shimizu
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-099534 20110427
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08
Abstract:
An LED drive circuit that is connectable to an a.c. power supply via a phase control type light adjuster and drives an LED load, including a discharge portion that consumes energy of a resonance phenomenon generated by a light adjuster capacitance component of the phase control type light adjuster and a light adjuster inductance component of the phase control type light adjuster when a current holding portion of the phase control type light adjuster is turned on.
Public/Granted literature
- US20120274230A1 LED DRIVE CIRCUIT AND LED ILLUMINATION LIGHT Public/Granted day:2012-11-01
Information query
