Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1988-01-13
1989-08-08
Heyman, John S.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307491, 307521, 3072961, 3072965, 328167, H03K 500, H03K 301, H03F 130
Patent
active
048556270
ABSTRACT:
A filter circuit for filtering an input signal including a DC component signal with a prescribed DC level and an AC component signal. The filter circuit includes a time constant circuit for imparting the input signal with prescribed frequency characteristics, the time constant circuit including a variable impedance device and a capacitor, and a control signal source for supplying a control signal for adjusting the impedance of the variable impedance device, the control signal source including a DC source for generating a DC control signal and a compensation source for generating a compensation signal equivalent to the AC component signal of the input signal.
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Geiger et al., "Switched-Resistor Filters--A Continuous Time Approach to Monolithic MOS Filter Design," IEEE Transactions on Circuits and Systems, vol. CAS-29, No. 5, pp. 306-315, May 1982.
Heyman John S.
Kabushiki Kaisha Toshiba
Mai Huy K.
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