Means providing independently controlled superimposed AC and DC

Electrical transmission or interconnection systems – Superimposed unlike currents – Ac and dc sources

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307 43, 307 72, H02J 500

Patent

active

046201084

ABSTRACT:
A circuit for combining independently controlled AC and DC voltages in which AC and DC voltages are respectively applied to different inputs of a first amplifier, its output is connected to a first output terminal, the DC voltage is applied to the input of a second amplifier, its output is connected to a second output terminal that is grounded for AC, a voltage divider is connected between said output terminals and the gains of the amplifiers for DC are the same.

REFERENCES:
patent: 3047727 (1962-07-01), McAllise
patent: 3093783 (1963-06-01), Hass
patent: 4156150 (1979-05-01), Harrigan et al.
patent: 4170739 (1979-10-01), Frusztajer et al.

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