Amplifiers

Details Amplifiers Amplifiers

1976-04-19

1978-04-18

Dahl, Lawrence J.

Amplifiers

Plural signal inputs

330124R, 330199, H03F 300

Patent

active

040853810

ABSTRACT:
This invention relates to amplifiers for producing an accurate amplified version of a low voltage wave form. Specifically, the amplifier of the invention comprises independently fed first and second resistors connected to a common output which feeds a third resistor via a voltage to current converter, the other end of the third resistor being driven from the same point as the first resistor, the ratio of the resistances of the first and second resistors being made equal to the amplification required so that when the low voltage wave form is fed to the second resistor and a wave form approximating to the required output and of slightly higher voltage is fed to the first and third resistors, the voltage at the common output is proportional to the error in the approximated wave form and the voltage thereby developed across the third resistor by the voltage current converter is approximately equal to the error.

REFERENCES:
patent: 3259849 (1966-07-01), Willett et al.
patent: 3701037 (1972-10-01), Holsinger
"Handbook of Operational Amplifier Applications", Burr-Brown Research Corporation, 1963, pp. 63-66.

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