Balanced transformer-less amplifier circuit

Details Balanced transformer-less amplifier circuit Balanced transformer-less amplifier circuit

1987-06-04

1988-06-21

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330 85, 330258, 330260, H03F 345

Patent

active

047527447

ABSTRACT:
A balanced transformer-less amplifier having a pair of power amplifers connected in parallel for outputting amplified signals of opposite polarity, offset output detection circuit coupled to the amplifiers for detecting the difference in voltage level between the outputs of the two power amplifiers, and a preamplifier responsive to the offset output detection circuit both for operating the pair of power amplifiers on only a single power source voltage and for compensating for the difference in voltage level between the outputs of the two power amplifiers.

REFERENCES:
patent: 4698599 (1987-10-01), Hedman

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