18730970. DRIVER DEVICE (Mitsubishi Electric Corporation)
DRIVER DEVICE
Organization Name
Mitsubishi Electric Corporation
Inventor(s)
DRIVER DEVICE
This abstract first appeared for US patent application 18730970 titled 'DRIVER DEVICE
Original Abstract Submitted
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 signal is turned on, performs control to supply the fixed voltage to a gate of the semiconductor switching element for a predetermined period, and then performs control to supply the output voltage to the gate.