Fast one way amplifier stage

Details Fast one way amplifier stage Fast one way amplifier stage

1987-09-25

1989-04-04

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307263, 307490, 330253, H03K 524, H03K 5153

Patent

active

048188972

ABSTRACT:
A fast one way amplifier/comparator stage includes a transconductance square law device (20) for receiving an input voltage and a reference voltage and outputting a current that varies as the square law of the voltage difference. This current is converted to a voltage in a transresistance device (26) for controlling the switch element (30). The switch element (30) is operable to switch a capacitive load to either a positive rail or to a negative rail at a fast slew rate. The amplifier/comparator stage only draws current when the switch element (30) is conducting. When the switch element (30) is nonconducting, a load transistor (38) pulls the load (36) to the opposite terminal from that to which the switch element (30) is connected.

REFERENCES:
patent: 4358689 (1982-11-01), Jarrett et al.
patent: 4383223 (1983-05-01), Ulmer
patent: 4453092 (1984-06-01), Joseph
patent: 4661779 (1987-04-01), Okamoto
patent: 4677321 (1987-06-01), Bacrania

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