×

ELECTRONIC CIRCUIT

  • US 20150311779A1
  • Filed: 10/30/2013
  • Published: 10/29/2015
  • Est. Priority Date: 10/31/2012
  • Status: Active Grant
First Claim
Patent Images

1. An electronic circuit comprising:

  • a switching device including a plurality of switching elements that are connected in parallel and chiefly made of SiC;

    an overcurrent detecting circuit to detect that an overcurrent is flowing in the switching device; and

    an overcurrent protecting circuit to interrupt a current flowing in the switching device when an overcurrent is detected by the overcurrent detecting circuit, whereinthe overcurrent protecting circuit is arranged such that, at the time of a current interruption, a time interval from a time when the gate-source voltage or gate-emitter voltage of the switching device lowers to such a voltage that the temperature characteristics of the on-resistance of the switching device become negative to a time when the drain current or collector current of the switching device reaches 2% of the saturation current thereof is 500 [nsec] or less.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×