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Electronic switching device, in particular circuit-breaker and associated operating method

  • US 7,768,758 B2
  • Filed: 09/19/2005
  • Issued: 08/03/2010
  • Est. Priority Date: 09/27/2004
  • Status: Expired due to Fees
First Claim
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1. Electronic switching device, comprising:

  • means for an undelayed switch-on;

    means for an undelayed operational switch-off at the zero crossing point of the current, both during operation and on overload;

    means for an immediate switch-off as a short-circuit protection, with overload protection;

    means for an isolated activation, an isolated status message and a power supply at switch potential;

    an SiC-JFET with a MOSFET embodied as an SPM (Smart Power MOSFET); and

    at least one thyristor, the thyristor being switched in parallel with the SPM and with the combination of SiC-JFET and SPM with parallel switched thyristor being assigned a logic circuit.

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