Driver for backplane transceiver logic bus

Details Driver for backplane transceiver logic bus Driver for backplane transceiver logic bus

1992-12-14

1994-08-02

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307246, 307263, 328185, H03K 301, H03K 1756

Patent

active

053348826

ABSTRACT:
A driver which is particularly suitable for use with a backplane transceiver logic bus in a computer system is disclosed. In a preferred embodiment, a MOSFET is connected such that its gate and source are in a feedback loop which includes an amplifier and a first switching MOSFET. The source and drain of the MOSFET are connected in a connection path from the bus to ground, and a second switching MOSFET is connected between the gate of the MOSFET and ground. The first and second switching MOSFETS are arranged such that they switch in opposition to each other (one being turned on when the other is turned off) and a CMOS input signal is connected to the gates of the switching MOSFETS. In one state of the driver the MOSFET is turned off, in the other state the feedback loop is closed and the MOSFET is conductive. The rise and fall times of the driver's output can be controlled independently of each other.

REFERENCES:
patent: 4638186 (1987-01-01), McLaughlin
patent: 4866301 (1989-09-01), Smith
patent: 5151620 (1992-09-01), Lin
patent: 5164611 (1992-11-01), Summe

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