Title :
A ZVS PWM half-bridge inverter with active clamping technique using reverse recovery energy of the diodes
Author :
Mezaroba, Marcello ; Martins, Denizar Cruz ; Barbi, Ivo
Author_Institution :
SOCIESC - Educational Soc. of Santa Catarina, IST - Superior Technol. Inst., Joinville, SC, Brazil
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper presents a ZVS PWM half-bridge inverter with active voltage clamping technique using the reverse recovery energy of the diodes. The structure use only a single auxiliary switch and is particularly simple and robust. It is very attractive for single-phase high power applications. Switching losses are reduced due to implementation of the simple active snubber circuit, that provides ZVS conditions for all switches, including the auxiliary one. Its main features are: Simple control strategy, robustness, lower weight and volume, lower harmonic distortion of the output current, and high efficiency. The principle of operation for steady-state conditions, mathematical analysis and experimental results from a laboratory prototype are presented
Keywords :
DC-AC power convertors; PWM invertors; bridge circuits; harmonic distortion; losses; power conversion harmonics; power semiconductor diodes; snubbers; switching circuits; ZVS PWM half-bridge inverter; active clamping technique; active snubber circuit; auxiliary switch; control strategy; diode reverse recovery energy; harmonic distortion; mathematical analysis; single-phase high power applications; steady-state conditions; switching losses; Clamps; Diodes; Pulse width modulation inverters; Robust control; Robustness; Snubbers; Switches; Switching circuits; Switching loss; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954277