Title :
Novel Current Stress Reduction Technique for Boost Integrated Half-Bridge DC/DC Converter with Voltage Doubler Type Rectifier
Author :
Hong-Sun Park ; Chong-Eun Kim ; Gun-Woo Moon ; Jun-Chae Lim
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol.
Abstract :
A current stress reduction technique for a boost integrated half-bridge (BIHB) DC/DC converter with voltage doubler type rectifier is proposed for digital car audio amplifier application. In the proposed circuit, two external capacitors are added parallel to the rectifier diodes in the secondary side of the transformer to shape the primary and the secondary current like rectangular waveforms in every switching instance. The experimental results of a 200 W industrial sample show that the peak primary current decreases about by 10 A. Thus, the proposed technique shows improved high efficiency
Keywords :
DC-DC power convertors; audio-frequency amplifiers; bridge circuits; power capacitors; power transformers; rectifying circuits; switching convertors; 200 W; boost integrated half-bridge DC-DC converter; current stress reduction technique; digital car audio amplifier application; external capacitors; rectangular waveforms; rectifier diodes; transformers; voltage doubler type rectifier; Capacitors; Circuits; DC-DC power converters; Diodes; Inductors; Low voltage; Rectifiers; Stress; Switching converters; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712144
