Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1990-11-29
1992-05-05
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307518, 328133, 328139, H03K 906, H03D 1300
Patent
active
051110830
ABSTRACT:
The detection circuit includes a first synchronism detection circuit for synchronous detection of an input signal. A second synchronism detection circuit synchronously detects the input signal separately from the first synchronism detection circuit. A phase-shifting circuit outputs differently phased signals to the first synchronism detection circuit and the second synchronism detection circuit. A first smoothing circuit smooths the output of the first synchronism detection circuit. A second smoothing circuit smooths the output of the second synchronism detection circuit. A composite circuit adds the outputs of the first smoothing circuit and the second smoothing circuit. Even when a drift component is contained in the input signal, the detection circuit will output a predetermined output signal in which the drift component is suppressed.
REFERENCES:
patent: 4675613 (1987-06-01), Naegeli et al.
patent: 4675614 (1987-06-01), Gehrke
patent: 4942365 (1990-07-01), Satterwhite
Callahan Timothy P.
Murata Manufacturing Co. Ltd.
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