Patent ID: 6545417
Filing Date: 2003-04-08
Classification: H05B,Y02B

Abstract:
A ballast socket for compact fluorescent (â€œCFâ€ ) lamp, the ballast socket comprising:a case having an upper case, which has a receiving space for receiving a lamp and a connection terminal connected with the lamp at a side of the receiving space, and a lower case, which has a through hole at a lower center of the upper case; a controller mounted in the inside of the case for controlling lighting of the lamp; a printed circuit board (â€œPCBâ€ ) on which the controller and other components are mounted; pins for connecting the PCB and the connection terminal; and the controller includes a photocell circuit part supplying electric power (AC110V or AC220V) to a power supply and DC conversion device if it is dark around the photocell circuit part, the photocell circuit part interrupting an electric power if it is light; the power supply and DC conversion device receiving the electric power according to the control of the photocell circuit part, the power supply and DC conversion device converting the received power source into DC power and supplying CF lamp driving power to a CF lamp driving circuit part; and the CF lamp driving circuit part receiving the CF lamp driving power output from the power supply and DC conversion device to light up a CF lamp.