Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Current Reference Compensation for Fast Responsein PCMC of PSFB Converter
Authors Jong-Uk Lee ; Hag-Wone Kim ; Seung-Woo Baek ; Kwan-Yuhl Cho
Page pp.147-151
ISSN 1229-2214
Keywords Phase shift full bridge converter ; Current controller ; Peak current control ; Slope compensation
Abstract Phase-shift fullbridge (PSFB) converter detects the current in the primary side for operation of the peak current mode controller (PCMC). The PCMC must used the slope compensation to solve the problem when the effective duty is over 0.5. The voltage response of PSFB converters has slower than that of buck converter because of slew interval even if the voltage controllers of two converters have same bandwidth. To overcome these problems, this work proposes a compensating method of current reference considering slew interval and fast response in the PSFB converter. The effectiveness of the proposed method is proven using the PSIM simulation and experiment.