Article | REF: D3170 V1

DC-AC and AC-DC converters

Authors: Henri FOCH, Yvon CHÉRON, Raphaël ARCHES, Bernard ESCAUT, Pierre MARTY, Michel METZ

Publication date: September 10, 1993, Review date: July 26, 2015

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  • Depending on the power, characteristics and performance required, DC/AC converters also differ in terms of the semiconductors used and their operating modes:

    • switches are bidirectional in voltage and unidirectional in current in current switches, making them the preferred application for thyristors;

    • switches are bidirectional in current and unidirectional in voltage in voltage inverters; these switches always consist of a controllable semiconductor connected in antiparallel with a diode and, for this reason, voltage inverters are the preferred field of application for modern power semiconductors, which are fast but support little (or no) reverse voltage.

  • The frequency of the alternating waves must be equal to the...

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