Simplified driver circuit for solid-state power switches

Details Simplified driver circuit for solid-state power switches Simplified driver circuit for solid-state power switches

1990-10-02

1991-09-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307261, H03K 301

Patent

active

050516094

ABSTRACT:
A simplified driver circuit for solid-state switches, comprising a main drive circuit and an adaptor circuit. The main drive circuit is powered only by the normal switch control signal input and by an external, regulated power supply commonly used by the equipment controls. No individual power supplies are used for the driver. The main circuit incorporates precise circuits for shaping and directing the input control signals, exceptionally high voltage isolation to avoid transmission of harmful noise and a circuit for delivering the required gate drive to a field-effect-transistor switch. The adaptor circuit connects to the output terminals of the main circuit, and modifies the drive signal to that required for a bi-polar transistor or a silicon controlled rectifier.
The invention circuit is characterized by its use of few precise components, its high noise isolation and low power dissipation.

REFERENCES:
patent: 3652876 (1972-03-01), Baum et al.
patent: 3818253 (1974-06-01), Chafer et al.
patent: 3932766 (1976-01-01), Kudeljan et al.
patent: 4034236 (1977-07-01), Aveneau et al.
patent: 4075511 (1978-02-01), Lewis
patent: 4236089 (1980-11-01), Baker
patent: 4716304 (1987-12-01), Fiebig et al.

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