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Linearizing Circuit

IP.com Disclosure Number: IPCOM000097258D
Original Publication Date: 1962-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Soychak, FJ: AUTHOR

Abstract

The circuit linearizes a non linear voltage. Use is made of non linear circuit elements which have characteristics that compensate for the non linearity of the input voltage. This is to such a degree that the output voltage becomes linear.

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Linearizing Circuit

The circuit linearizes a non linear voltage. Use is made of non linear circuit elements which have characteristics that compensate for the non linearity of the input voltage. This is to such a degree that the output voltage becomes linear.

An input voltage which is non linear with respect to another variable is supplied to input terminals IT across which an attenuating resistor R1 is connected. A first diode D1 is connected in a series circuit including resistors R2, R3 and R4. The voltage across resistor R2 is supplied to output terminals OT. Two or more diodes, D2, D3, D7 and DS, are connected in series across resistors R3 and R4. An additional compensating resistor R5 is provided if needed.

The characteristics of the series of diodes D2... D5 are chosen so that, when superimposed, they provide a cumulative non linear effect. Such exactly balances the non linearity of the input voltage supplied to terminals IT. The non linear voltage at terminals IT is linearized by the varying degrees of conduction of the series of diodes. These supply a compensating voltage to the output terminals OT rendering the output voltage linear with respect to the other variable.

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