ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,691, issued on April 21, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Driver device" was invented by Kazuaki Hiyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An object is to provide a technique capable of optimizing the turn-on speed. A driver device includes a gate drive circuit power supply capable of changing an output voltage; a power supply having a fixed voltage lower than the output voltage; a control unit that changes the output voltage of the gate drive circuit power supply on the basis of related information related to a load current of the semiconductor switching element; and a delay circuit that, when the gate drive s...