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Article | REF: D3010 V1

Capacitors used in power electronics

Author: Gérard MOURIÈS

Publication date: August 10, 2007 | Lire en français

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    1. Special features of these capacitors

    1.1 General information. Equivalent diagram

    Capacitors used in electronics to raise the power factor, start single-phase induction motors, etc., meet the following conditions of use:

    • quasi-sinusoidal operation at industrial frequencies (50 or 60 Hz);

    • no significant DC voltage at their terminals.

    Finally, their series residual inductance is not specified; its value can be quite high without any significant consequences in the above-mentioned applications.

    • Such conditions are quite the opposite of those offered to capacitors used in power electronics circuits. In these circuits :

      • ...

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