Communications: electrical – Systems – Selsyn type
Patent
1980-06-02
1982-04-06
Yusko, Donald J.
Communications: electrical
Systems
Selsyn type
307 3, 340825, H04B 356
Patent
active
043238823
ABSTRACT:
Power line carrier frequency signals are provided at a distribution transformer primary winding by controlled current injection onto the neutral and phase conductors of the distribution transformer secondary winding circuit, with the direction of current flow in each half of the secondary winding being controlled in in-phase additive fashion. Apparatus for causing in-phase distribution secondary winding current flow includes a pair of electronic current control means supplying in-phase currents to a pair of secondary windings of an auxiliary transformer having its primary winding coupled to half of the distribution transformer secondary winding and having the auxiliary transformer secondary winding center tap coupled to local neutral through a band-stop filter and to the remaining distribution transformer secondary winding through a band-pass filter for augmentation of signal current flow into the distribution transformer.
REFERENCES:
patent: 3460121 (1969-08-01), Wattenburg
patent: 4017845 (1977-04-01), Kilian et al.
patent: 4188619 (1980-02-01), Perkins
patent: 4194128 (1980-03-01), Biglin
patent: 4254402 (1981-03-01), Perkins
Davis Jr. James C.
General Electric Company
Krauss Geoffrey H.
Snyder Marvin
Yusko Donald J.
LandOfFree
Method of, and apparatus for, inserting carrier frequency signal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of, and apparatus for, inserting carrier frequency signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of, and apparatus for, inserting carrier frequency signal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-595552