Driver circuit for power transistors

Details Driver circuit for power transistors Driver circuit for power transistors

1988-05-23

1990-06-26

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307571, 307246, 307540, 323289, H03K 301, H03K 1760, H01P 122, G05F 140

Patent

active

049374702

ABSTRACT:
A gate driver circuit is provided for push-pull power transistors. Inverse square wave signals are provided to each of the driver circuits for activating the power transistors. The combination of an inductor and diodes provides a delay for activating the corresponding power transistor at a positive transition of the control signal, but do not have a significant delay at the negative transition. This provides protection to prevent the power transistors from being activated concurrently while having lower power loss at high drive frequencies. The control terminal for each power transistor is connected to a voltage clamping circuit to prevent the negative transition from exceeding a predetermined limit.

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