Dismiss
InnovationQ and the IP.com Prior Art Database will be updated on Sunday, December 15, from 11am-2pm ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

LATERAL TRANSISTOR CURRENT SENSING THAT COMPENSATES FOR EARLY VOLTAGE

IP.com Disclosure Number: IPCOM000006777D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Jan-31

Publishing Venue

Motorola

Related People

Authors:
Thomas Petty Robert L. Vyne Renwin J. Vee

Abstract

Transistors Ql and Q2 shown in the above sche- matic are the output devices of an operational amplifier that is capable of a large dynamic output voltage swing. The function of the remaining circuitry is to accurately reproduce a fraction (l/N) of the amplifier's output cur- rent (Iout) at the SENSE OUT terminal. The current Is,,,, must be independent of the voltage which appears at the SENSE OUT terminal.