Analysis and design considerations of zero-voltage and zero-current-switching (ZVZCS) full-bridge PWM converters

Author(s):  
Hang-Seok Choi ◽  
J.H. Lee ◽  
B.H. Cho ◽  
J.W. Kim
Author(s):  
M. L. Martins ◽  
H. Pinheiro ◽  
J. R. Pinheiro ◽  
H. A. Gründling ◽  
H. L. Hey

This paper presents a novel family of Zero Voltage Transition (ZVT) DC-DC PWM Converters that uses a resonant circuit as auxiliary commutation source to control the current through the auxiliary switch without additional current stresses on main devices. The improved ZVT commutation cell enables the main switch to be turned on and off at Zero Voltage Switching (ZVS) and the auxiliary switch to be turned on and off at Zero Current Switching (ZCS) from zero to full-load.


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