Powerline carrier control system

Details Powerline carrier control system Powerline carrier control system

1979-03-05

1982-03-23

Groody, James J.

Communications: electrical

Systems

Selsyn type

307 3, 455114, H04B 354

Patent

active

043215815

ABSTRACT:
A powerline carrier control system having a carrier transmitter which delivers an audio-frequency output voltage, subdivided into transmitted pulses, to a power-line carrier control receiver via a coupling unit and the power distribution network. In order to reduce ringing (after-oscillation) of the coupling unit, an auxiliary decay circuit switches the AC voltage being transmitted into a phase shift or into phase opposition to offset the after-oscillation. In this manner, distortion of the transmitted information is largely avoided.

REFERENCES:
patent: 1547242 (1925-07-01), Strieby
patent: 2630367 (1953-03-01), Rahmel
patent: 2974221 (1961-03-01), Peth
patent: 3942170 (1976-03-01), Whyte
patent: 3952294 (1976-04-01), Emerson et al.
patent: 4021797 (1977-05-01), Hofmeister
Siemens-Zeitschrift, Paessler, Feb. 1974.

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