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Analysis and Design of Class E Low dv/dt PWM Synchronous Rectifier Regulating the Output Voltage at a Fixed Frequency
Itsda BOONYAROONATE Shinsaku MORI
IEICE TRANSACTIONS on Communications
Publication Date: 2001/10/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Energy in Electronics Communications
class E low dv/dt rectifier, ZVS rectifier, synchronous rectifier, ZVS PWM dc/dc converter,
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A class E low dv/dt PWM synchronous rectifier regulating the output voltage at a fixed frequency is presented, analyzed and verified experimentally. This rectifier is derived from the class E low dv/dt rectifier by replacing the controlled switch (MOSFET with its anti-parallel diode) with the rectifier diode in class E low dv/dt rectifier, and by using the synchronized PWM signal to control the output voltage at desired value. The ZVS condition of the controlled switch can be maintained from full-loaded to open-loaded. The experimental results measured at switching frequency 1 MHz are in good agreement with the theoretical prediction.