Pulse width modulated power amplifier with differential connecti

Details Pulse width modulated power amplifier with differential connecti Pulse width modulated power amplifier with differential connecti

1981-04-22

1983-09-06

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

330 85, 330286, H03F 338

Patent

active

044031963

ABSTRACT:
The adverse effects of the impedance of long varying impedance connecting lines used in pulse width modulated power amplifier are eliminated by means of a dual input differential amplifier that senses the line voltage drops in the connecting lines and combines them into a line voltage drop compensation signal that is applied across the power amplifier inputs. This line voltage drop compensation signal raises the output of the power amplifier by the amounts needed to null out the line voltage drops.

REFERENCES:
patent: 2961597 (1960-11-01), Carleton
patent: 3295052 (1966-12-01), Martin
patent: 3303412 (1967-02-01), Gately
patent: 3408559 (1968-10-01), Bambace et al.
patent: 4038593 (1977-07-01), Quinn
patent: 4186437 (1980-01-01), Cuk

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