Title :
Single-switch ZVZCS quasi-resonant CLL isolated DC-DC converter for low-power 32″ LCD TV
Author :
Seung-Hee Ryu ; Jung-Hoon Ahn ; Byoung-Kuk Lee ; Kwang-Seung Cho
Author_Institution :
Sch. of Electron. & Electr. Eng., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
In this paper, a single-switch ZVZCS quasi-resonant CLL isolated dc-dc converter for the low-power 32" LDC TV less than 100 W is proposed. The proposed converter achieves soft switching of the switch at turn on and turn off without additional active switches and components as well as eliminates the switching losses of the rectifying diode. The advantage of the proposed converter is that the variation of the switching frequency is less than about 10 kHz when loads change from 30% to 100%. EMI performance can be improved by soft switching.
Keywords :
DC-DC power convertors; diodes; liquid crystal displays; switching convertors; zero current switching; zero voltage switching; EMI performance; frequency 10 kHz; low-power LCD TV; power 100 W; rectifying diode; single-switch ZVZCS quasi-resonant CLL isolated dc-dc converter; size 32 inch; soft switching; switching frequency; switching loss; Capacitors; Inductance; Inductors; Magnetic resonance; Switches; Video recording;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
DOI :
10.1109/ECCE.2013.6647359
