Amplifier circuit having a floating input stage

Details Amplifier circuit having a floating input stage Amplifier circuit having a floating input stage

1973-10-04

1976-10-26

Mullins, James B.

Amplifiers

Modulator-demodulator-type amplifier

330165, 330199, H03F 338

Patent

active

039886905

ABSTRACT:
An input amplifier stage is isolated from the main body of an amplifier and instrument ground by a single transformer which provides both an energy path to the input stage and an amplifier signal path from the input stage using a modulated load technique. The secondary of the transformer, which is connected across the input amplifier, includes a rectifier and filtering components to provide a floating D. C. voltage supply.

REFERENCES:
patent: 1890489 (1932-12-01), Baker
patent: 2694114 (1954-11-01), Kalfaial
patent: 3058066 (1962-10-01), Redding et al.
patent: 3428912 (1969-02-01), Wolcott
patent: 3456132 (1969-07-01), Dechelotle
patent: 3483476 (1969-12-01), Kobayashi et al.
patent: 3631329 (1971-12-01), Kimball
patent: 3657717 (1972-04-01), Glantschnig et al.

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