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Active Self-Switching Methods for Emerging Monolithic Bidirectional Switches Applied to Diode-Less Converters
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| Author(s) |
Daniel SIEMASZKO, Alfred RUFER |
| Abstract |
This paper presents a recently introduced switching principle for emerging monolithic bidirectional devices. Based on the hypothesis that those switches may overcome conventional diode type solutions in power converters, an active self-switching process becomes compulsory. Its principle relies on the measurement of both voltage and current polarity, in order to allow a natural switching as commonly used in matrix conversion. A self-switching method, implemented close to the switch, allows the detection of both short-circuits and open circuits. The accuracy of the presented system is experimented and validated in a 1kVA buck converter where the free-wheeling path is performed by a synthesized diode. The results that are discussed in this paper open a new perspective by introducing the principle of a so-called bidirectional diode as well as the commutation of sources of a similar nature. |
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| Filename: | 0147-epe2009-full-09435878.pdf |
| Filesize: | 2.78 MB |
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| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
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