Patent
Gate drive circuit
Osamu Machida,修 町田 +1 more
TLDR
In this paper, the authors proposed a gate drive circuit for applying a control signal from a control circuit to a gate of a switching element Q1 having a drain, source and gate and comprising a wide bandgap semiconductor to drive on/off the switching element.Abstract:
PROBLEM TO BE SOLVED: To provide a gate drive circuit that stably turns on a switching element without varying a turn-on switching characteristic nor causing a power loss.SOLUTION: The gate drive circuit for applying a control signal from a control circuit to a gate of a switching element Q1 having a drain, source and gate and comprising a wide bandgap semiconductor to drive on/off the switching element comprises: a parallel circuit of a first capacitor C1 and a first resistance R1 connected between the control circuit and the gate of the switching element; and short circuit means S4 connected between the gate and source of the switching element to short-circuit the gate and source with a delay from an off signal of the control signal.read more
Citations
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References
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Patent
Power conversion apparatus
TL;DR: In this article, the authors proposed a power conversion apparatus consisting of a battery, a main contactor, a smoothing capacitor, a transformer, and a rectifier circuit for smoothing an output of the smoothing circuit.
Patent
Integrated circuit including an overvoltage protection circuit
TL;DR: In this paper, the power IC includes an output transistor M 0 which controls a current flowing into an L load, a dynamic clamp circuit which clamps an overvoltage, and a clamp control circuit which controls the operation of the dynamic clamps.
Patent
Gate driver for enhancement-mode and depletion-mode wide bandgap semiconductor jfets
Robin Lynn Kelley,Fenton Rees +1 more
TL;DR: In this article, a DC-coupled two-stage gate driver circuit for driving a junction field effect transistor (JFET) is provided, which is configured to accept an input pulse-width modulation (PWM) control signal and generate an output driver signal.
Patent
JFET driver circuit and JFET driving method
Wang Hung-I,Tai Liang-Pin +1 more
TL;DR: In this article, a two-stage turn-on current control is employed in a JFET driver circuit and a driving method, by which a shortly pulsed high sourcing current is provided to turn on the JET rapidly and efficiently.
Patent
Semiconductor integrated circuit
TL;DR: In this article, a semiconductor integrated circuit according to an embodiment of the invention includes an output MOS transistor controlling current flowing through a load, a dynamic clamp circuit clamping an overvoltage applied to the output MISO transistor, a delay circuit generating a reference signal by adjusting a level of a gate voltage of the output mOS transistor, and a clamp controlling circuit making the dynamic clamp circuits operate based on the reference signal when a counter electromotive force is applied to a MISO transistors.