McClure, Qualey & Rodack, LLP
Lamp control system, lamp power-saving system and method therefor
A power-saving method for a lamp power-saving system is provided. The method includes the following steps. A lamp control unit is provided to control a fluorescent lamp. The lamp control unit includes a power conversion circuit and a preheat and lighting circuit. The preheat and lighting circuit, coupled to the power conversion circuit and two terminals of the fluorescent lamp, preheats and activates the fluorescent lamp, and outputs a feedback signal indicating a current passing through the fluorescent lamp. When the feedback signal indicates the fluorescent lamp is in a preheat mode, a resonant circuit of the preheat and lighting circuit is enabled to preheat the fluorescent lamp via a current path provided by a diode bridge of the preheat and lighting circuit. When the feedback signal indicates the fluorescent lamp is lighted, the current path of the preheat and lighting circuit is disconnected to stop preheating.
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
H H H
H05B H01J H01J
inventional inventional inventional
Sui-Tsung Jia-Hong Ching-Ran
Chen Chen Lee