コモンソースアクティブクランプ複合形DC-DCコンバータ [in Japanese] Common-Source Active Clamped Complex Type Converter [in Japanese]
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This paper presents a novel common-source active clamped complex type converter. This converter is the intermediate isolated bus converter for the distributed power supply system in telecommunications equipment. Using active clamped circuits, the switching loss and switching noise can be reduced by means of the soft switching techniques. By adding an auxiliary winding to the transformer, proposed converter is a common-source type that is direct connection of sources of the two MOSFET switches. As a result, the pulse transformer becomes unnecessary, and the drive circuit is simplified. In the experiment, at 48V ratings input voltage, 36∼72V world wide input voltage, and 12V output voltage, the ZVS operation is performed on main switch and auxiliary switch, and highest efficiency 92.7% is obtained.
- IEEJ Transactions on Electronics, Information and Systems
IEEJ Transactions on Electronics, Information and Systems 127(2), 235-240, 2007-02-01
The Institute of Electrical Engineers of Japan