Electricity: motive power systems – Motor-reversing – Armature or primary circuit control
Patent
1973-10-09
1976-05-18
Libman, George H.
Electricity: motive power systems
Motor-reversing
Armature or primary circuit control
318629, 318654, 333 70CR, 333 75, H03H 706
Patent
active
039581799
ABSTRACT:
An electric impedance network for AC carrier frequency control systems which provides optimal arithmetical symmetry in frequency response with respect to the carrier frequency, characterized by having a symmetrical even amplitude response and a symmetrical odd phase response for a substantial frequency band around the carrier frequency.
REFERENCES:
patent: 2252609 (1941-08-01), Beck
Reference Data for Radio Engineers, 4th Ed. ITT, 1956, p. 270.
Libman George H.
Manning John R.
Porter George J.
Wofford, Jr. L. D.
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