New self-switching mechanisms for active bidirectional switches

The self-switching principle is a synthesis of synchronous type switching and switch inner protection mechanisms. Both switch ON and switch OFF are performed on the base of current and voltage measurement across the switch. Applied to an active bidirectional device, it may give complete autonomy to the switch. On the basis of those principles, the synthesis of an autonomous bidirectional free-wheeling path for an AC/AC buck converter is implemented with active switches. This paper introduces the current/ voltage state representation in order to illustrate the experimental switching mechanisms. As a further application, the automatic triac is synthesized for a bipolar AC/DC half-bridge converter.


Presented at:
EPE 2007 : 12th European Conference on Power Electronics and Applications, Aalborg, Denemark, 2-5 September 2007
Year:
2007
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2007-09-18, last modified 2018-03-17

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