Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1984-07-19
1986-03-11
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307499, 307262, 307219, 328 26, 328145, H03K 500, G06G 724
Patent
active
045756490
ABSTRACT:
An RMS converter has first and second transistors (40a and 42a) providing a signal representing double the log of the input voltage, a third transistor (40b), matched with the first (40a), providing a signal representative of the log of the output voltage and a fourth transistor (42b), matched with the second (42a). providing a signal representative of the anti-log of the ratio of those signals; the transistors in each matched pair are repetitively interchanged functionally thereby reducing errors caused by slight differences in the transistor operating characteristics.
REFERENCES:
patent: 4097767 (1978-06-01), Blackmer et al.
patent: 4109165 (1978-08-01), Katakura et al.
Gardiner William H.
Luckhurst Geoffrey A.
Gaudier Dale
Miller Stanley D.
Roseen Richard
Schlumberger Electronics (U.K.) Limited
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