Direct current supply source

Details Direct current supply source Direct current supply source

1974-06-03

1976-05-25

Shoop, William M.

Electricity: power supply or regulation systems

Remote sensing

G05F 700

Patent

active

039597180

ABSTRACT:
A direct current supply circuit for supplying a direct current to a communication terminal device as well as for repeating information from said communication terminal device to an electronic exchange has been disclosed. Said direct current supply circuit comprises a transformer, which has four primary windings. By arranging the direction of the direct current in said primary windings, saturation of magnetic flux in said transformer can be prevented and thus, the size of the transformer can be reduced.

REFERENCES:
patent: 3059121 (1962-10-01), Masters et al.
patent: 3119063 (1964-01-01), Brightman et al.
patent: 3384810 (1968-05-01), Kelsey
patent: 3714548 (1973-01-01), Macrander

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