US Patent 9455566 Drive protection circuit, semiconductor module, and automobile
Patent 9455566 was granted and assigned to Mitsubishi Electric Corporation on September, 2016 by the United States Patent and Trademark Office.
All edits
It is an object of the present invention to provide a technology capable of reliably suppressing a surge voltage even in a case where noise having a small pulse width is generated. A drive protection circuit that drives and protects a switching element includes a gate driving circuit that drives the switching element in response to a gate driving signal and an overcurrent protection circuit that operates a soft cutoff circuit upon an overcurrent of the switching element, the soft cutoff circuit causing the switching element to transition from ON to OFF at a switching speed slower than that of the gate driving circuit. In the drive protection circuit, in a case where a pulse width of ON of the gate driving signal is less than or equal to a response time of the overcurrent protection circuit, the drive protection circuit operates the soft cutoff circuit to cause the switching element to transition from ON to OFF, regardless of the overcurrent.
US Patent 09455566 Drive protection circuit, semiconductor module, and automobile US Patent 9455566 Drive protection circuit, semiconductor module, and automobile
US Patent 09455566 Drive protection circuit, semiconductor module, and automobile
Find more entities like US Patent 9455566 Drive protection circuit, semiconductor module, and automobile
