作者: L. Huber , M.M. Jovanovic
DOI: 10.1109/63.849038
关键词:
摘要: In this paper, a new single-stage, single-switch input-current-shaping (S/sup 4/ICS) technique which features substantially reduced turn-on switching loss of the switch in S/sup 4/ICS flyback topology is described. proposed technique, due to discharging output capacitance by turning on when its voltage minimum. To achieve reduction for wide range line and load conditions, transformer continuously operated at boundary continuous conduction mode (CCM) discontinuous (DCM) employing variable-frequency control. The performance was evaluated 70-W (20-V/3.5-A) experimental prototype.