Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1980-04-14
1983-01-04
Dixon, Harold A.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307264, 328 99, H03K 1700, H03K 1760
Patent
active
043674194
ABSTRACT:
An analog switch having a first feedback amplifier supplied with a signal superposed with a bias voltage and a second feedback amplifier supplied with the bias voltage. Each amplifier has a differential amplifier formed of two symmetrically connected transistors and having an output connected to both a common output terminal and its input through an impedance transforming transistor. The differential amplifier is biased by a constant current source formed of a transistor and a diode. In the presence of a control signal, the first amplifier is closed through the normal operation of its constant current source while the second amplifier is opened by disabling its constant current source. In the absence of the control signal, the first and second amplifiers are opened and closed, respectively.
REFERENCES:
patent: 2535912 (1950-12-01), Frank et al.
patent: 2831971 (1958-04-01), Wischmeyer
patent: 2914669 (1959-11-01), Wright et al.
patent: 2943260 (1960-06-01), Barnard
patent: 3123721 (1964-03-01), Kaufman
patent: 3199034 (1965-08-01), Ritter
patent: 3546485 (1970-12-01), Davis
patent: 3551703 (1970-12-01), Bischoff
"High Speed JFET Analog Switches . . . " by Givens EDN, Feb. 5, 1974, pp. 76-84.
Yazawa Nobuharu
Yoshitomi Masao
Dixon Harold A.
Mitsubishi Denki & Kabushiki Kaisha
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