Title :
Class D converter with half-wave regulated synchronous rectifier
Author :
Kazimierczuk, Marian K. ; Mescher, Mark J.
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
Abstract :
A Class D series resonant converter with a controllable PWM synchronous half-wave current-driven transformer rectifier is presented, including its analysis and experimental results. Replacing the diodes in a conventional current-driven half-wave rectifier with MOSFETs allows voltage regulation for line or load swings of greater than 70% at a minimum of 50% efficiency and a maximum above 80% for a 3.3 V supply producing 15 W of power. The operating frequency was held constant at 120 kHz. The rectifier is driven by a Class D ZVS series resonant inverter and a transformer, which provides a sinusoidal current source
Keywords :
circuit resonance; insulated gate field effect transistors; power convertors; pulse width modulation; rectifiers; rectifying circuits; semiconductor switches; switching circuits; transformers; voltage control; 120 kHz; 15 W; 3.3 V; Class D ZVS series resonant inverter; Class D converter; MOSFET; PWM; current-driven transformer rectifier; half-wave regulated synchronous rectifier; line swings; load swings; operating frequency; series resonant converter; sinusoidal current source; voltage regulation; Diodes; Frequency; MOSFETs; Pulse width modulation; Pulse width modulation converters; Rectifiers; Resonance; Resonant inverters; Voltage control; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-1456-5
DOI :
10.1109/APEC.1994.316289
