Title :
Comparison of half-bridge off-line, ZCS-QRC and ZVS-MRC
Author :
Jovanovic, Milan M. ; Farrington, Richard ; Lee, Fred C.
Author_Institution :
Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
3/1/1990 12:00:00 AM
Abstract :
The performance of the half-bridge (HB) zero-current-switched (ZCS) quasi-resonant converter (QRC) and zero-voltage-switched (ZVS) multiresonant converter (MRC) is compared with respect to their efficiency, input voltage range, semiconductor stresses, power density, and reliability. The efficiency of the HB ZVS-MRC at a given nominal input is shown to be highly dependent on the range of the input voltage, and it suffers when the converter has to be designed to cover a wide range. However, this is not the case for the HB ZCS-QRC. Experimental versions of the HB ZCS-QRC and HB ZVS-MRC were designed for the input voltage range from 150 to 350 V and a maximum output power of 100 W, under the same constraints, to facilitate their comparison
Keywords :
bridge circuits; power convertors; 100 W; 150 to 350 V; MOSFET; efficiency; half bridge zero current switched quasiresonant convertor; input voltage range; power density; reliability; semiconductor stresses; zero voltage switched multiresonant convertor; Frequency conversion; Inductors; Parasitic capacitance; Power electronics; Resonance; Switches; Switching loss; Topology; Zero current switching; Zero voltage switching;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
