Terminator method and apparatus

Details Terminator method and apparatus Terminator method and apparatus

1991-11-08

1993-08-24

Kuntz, Curtis

Pulse or digital communications

Repeaters

Testing

333 172, 307547, H04B 300, H04L 2502

Patent

active

052395596

ABSTRACT:
A terminator method and apparatus used with a SCSI bus line for removing noise spikes or transients from data and/or control signals received on the bus line include a voltage regulator, a low voltage regulating circuit, a plurality of pull-up termination resistors, and a suppression network. The voltage regulator is responsive to an input termination power supply voltage for generating a regulated output voltage of a predetermined value. The low voltage regulating circuit is responsive to the regulated output voltage for generating a reference voltage. The plurality of pull-up resistors is interconnected between the regulated output voltage and a plurality of data and/or control signal lines coupled to the bus line for generating termination impedances. The suppression network is interconnected between at least one of the plurality of data and/or control signal lines and the reference voltage for removing transients from the data and/or control signals by limiting the range of the upper voltage level and the lower voltage level appearing thereon.

REFERENCES:
patent: 3758868 (1973-09-01), Brown
patent: 3895305 (1975-07-01), Longman, Jr.

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