Title :
A low-cost control IC for single-transistor ZVS cold-cathode fluorescent lamp inverters and DC/DC converters
Author :
Redl, Richard ; Arakawa, Koji
Author_Institution :
ELFI S.A., Onnens, Switzerland
Abstract :
The paper reviews the various inverter topologies for cold-cathode fluorescent lamps, discusses the analysis and control of the class E inverter, and introduces a new control IC developed for such inverters and also for ZVS DC/DC power converters. The IC features a zero-voltage detector, switch overdissipation protection, soft start, pulse-by-pulse current limit, overvoltage protection, and on/off switching with a low-current stand-by mode. The primary use of the IC is in inverters for cold-cathode fluorescent lamps for display backlight applications, but the IC is also suitable for controlling ZVS quasi-resonant and multi-resonant DC/DC power converters
Keywords :
DC-AC power convertors; DC-DC power convertors; cathodes; fluorescent lamps; invertors; power integrated circuits; switching circuits; DC/DC converters; class E inverter; cold-cathode fluorescent lamp; control IC; display backlight applications; inverter topologies; low-current stand-by mode; multi-resonant power converters; on/off switching; overvoltage protection; pulse-by-pulse current limit; quasi-resonant power converters; single-transistor ZVS invertors; soft start; switch overdissipation protection; zero-voltage detector; Application specific integrated circuits; Computer vision; Detectors; Fluorescent lamps; Protection; Resonant inverters; Switches; Topology; Voltage control; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1997. APEC '97 Conference Proceedings 1997., Twelfth Annual
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3704-2
DOI :
10.1109/APEC.1997.575777
