Digital output buffer and method with slew rate control and redu

Details Digital output buffer and method with slew rate control and redu Digital output buffer and method with slew rate control and redu

1991-06-03

1993-07-27

Westin, Edward P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307263, 307451, 307475, H03K 1716, H03K 19092

Patent

active

052313115

ABSTRACT:
A buffer characterized by a pull-up network and a pull-down network which are both coupled between an input and an output of the buffer. Each of the networks include a number of switch elements which can be sequentially turned on or off by means of an RC network to provide slew-rate control for the buffer. Preferably, each of the networks are associated with diode bypass networks to reduce crowbar current. In operation, both the pull-up network and the pull-down network turn on slowly but turn off very quickly due to the diode bypass networks.

REFERENCES:
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patent: 4992676 (1991-02-01), Gerosa et al.
patent: 5036232 (1991-07-01), Jungert et al.
patent: 5089722 (1992-02-01), Amedo
patent: 5111075 (1992-05-01), Ferry et al.
patent: 5128567 (1992-07-01), Tanaka et al.

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