Phantom powered amplifier

Details Phantom powered amplifier Phantom powered amplifier

1986-07-25

1988-04-12

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

330127, H03F 304

Patent

active

047377356

ABSTRACT:
A circuit for receiving unbalanced inputs and providing balanced outputs to a console wherein the console provides phantom power. The circuit isolates the phantom power to provide bias supply to the amplifier circuit which converts the unbalanced input to a balanced output.

REFERENCES:
patent: 3449679 (1969-06-01), Attwood
patent: 3454896 (1969-07-01), Hofer
patent: 3501711 (1970-03-01), Moran
patent: 3757240 (1973-09-01), Fogg
patent: 3828280 (1974-08-01), Dolby
patent: 4292597 (1981-09-01), Niimura et al.
patent: 4296383 (1981-10-01), Jeandot et al.
patent: 4369411 (1983-01-01), Niimura et al.
patent: 4504747 (1985-03-01), Smith et al.
patent: 4551636 (1985-11-01), Andrews et al.
patent: 4558186 (1985-12-01), Stahl
patent: 4631493 (1986-12-01), Vandelin et al.
Edward Simon, "Tech Tips", S & VC Buyers' Guide, Feb. 15, 1987, p. 56.

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