Output driver for high-speed device

Details Output driver for high-speed device Output driver for high-speed device

1996-12-02

1998-02-17

Wong, Peter S.

Electricity: power supply or regulation systems

Input level responsive

Using a linearly acting final control device

323273, 323282, 327541, G05F 500

Patent

active

057194912

ABSTRACT:
An output driver for providing a gate voltage to an external positive-channel field-effect transistor (PFET) device. A capacitor accumulates charge which, upon switching by an input switching signal, is applied, in addition to the supply voltage, to the base of a drive circuit NPN transistor to rapidly pull the PFET gate voltage, derived at the emitter of the drive circuit NPN transistor, up to the supply voltage. An active voltage limiter, coupled in parallel with the drive circuit, limits excursion of the gate voltage with respect to the supply voltage.

REFERENCES:
patent: 5012381 (1991-04-01), Elliott et al.
patent: 5124616 (1992-06-01), Wrzesinski
patent: 5479093 (1995-12-01), Jeon
patent: 5552747 (1996-09-01), Tomasini et al.

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