Invention Grant
- Patent Title: LED drive circuit and LED illumination apparatus
- Patent Title (中): LED驱动电路和LED照明装置
-
Application No.: US13290163Application Date: 2011-11-07
-
Publication No.: US09497808B2Publication Date: 2016-11-15
- Inventor: Takeshi Murata , Atsushi Kanamori , Hirohisa Warita , Hideo Matsuda , Takayuki Shimizu
- Applicant: Takeshi Murata , Atsushi Kanamori , Hirohisa Warita , Hideo Matsuda , 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: JP2010-258433 20101119
- Main IPC: H05B33/08
- IPC: H05B33/08

Abstract:
An LED drive circuit that is connectable to a phase control type of light adjuster and receives a voltage based on an a.c. voltage to drive an LED load, the LED drive circuit has a structure which includes: an adjustment signal generation portion that generates an adjustment signal in accordance with a characteristic of a phase control type of light adjuster which is connected to the LED drive circuit; and an adjustment portion that receives the adjustment signal to adjust a characteristic for driving the LED load.
Public/Granted literature
- US20120126708A1 LED DRIVE CIRCUIT AND LED ILLUMINATION APPARATUS Public/Granted day:2012-05-24
Information query