Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1976-09-29
1977-10-04
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307230, 307350, 330 1A, H03K 5153, G06G 712
Patent
active
040526771
ABSTRACT:
The generator includes an input terminal, an output terminal, and three channels connected between the input and output terminals. The first channel contains a first amplifier and a first FET switch connected in series between the terminals. The second channel contains a second amplifier and a second FET switch connected in series between the terminals. The third channel contains an adjustable resistor and a third FET switch connected in series between the terminals. An adjustable bias signal positively offsets the output signal of the first amplifier and negatively offsets the output signal of the second amplifier to produce a signal deadband. When an applied input signal lies within the deadband, a signal from the resistor lies between the amplifier output signals, and a pair of comparators turn on the third FET and turn off the first and second FET's. This produces an output signal which follows the input signal with a gain determined by the resistor adjustment. When the input signal is out of the deadband, the comparators turn on the appropriate one of the first and second FET's and turn off the third FET. This causes the output signal to follow the input signal with a gain determined by that of the corresponding one of the amplifiers.
REFERENCES:
patent: 3851259 (1974-11-01), Porawski
patent: 4011504 (1977-03-01), DePillo
Bodenstein George E.
Burton Lockwood D.
Davis B. P.
Honeywell Inc.
Marhoefer Laurence J.
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