A circuit is provided in which a voltage due to a minute current is applied to a gate terminal from a collector terminal when a collector voltage is higher than a gate voltage in an operation of current limitation. Thus, an increase in the collector voltage immediately after the operation of current...http://www.google.com.au/patents/US5970964?utm_source=gb-gplus-sharePatent US5970964 - Circuit device for igniting internal combustion engine and semiconductor device for igniting internal combustion engine
