Invention Grant
US08456201B2 Energy-recycling resonant drive circuits for semiconductor devices 有权
用于半导体器件的能量循环谐振驱动电路

Energy-recycling resonant drive circuits for semiconductor devices
Abstract:
A transistor driver includes an inductor coupled to a gate terminal of a transistor and a switching circuit coupled to the inductor and configured to charge a capacitance at a gate terminal of the transistor from a source via the inductor responsive to a first state of a control input, to block discharge of the charged capacitance responsive to a voltage at the gate terminal and to return charge from the charged capacitance to the source responsive to transition of the control input to a second state. The switching circuit may include a switch coupled in series with the inductor and the source and configured to conduct responsive to transition of the control input to the first state and a rectifier coupled in series with the inductor and the source and configured to block discharge of the charged capacitance responsive to the voltage at the gate terminal.
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