MOS RESISTANCE CIRCUIT

PURPOSE:To provide a MOS resistance circuit which constructs a MOS transistor TR having the resistance value equal to the reference resistance and enables the power-down even when a MOS resistance is connected in series to an R string. CONSTITUTION:The resistance R and Rx are connected in series bet...

Full description

Saved in:
Bibliographic Details
Main Author KAWAI TOSHIMASA
Format Patent
LanguageEnglish
Published 20.05.1994
Edition5
Subjects
BASIC ELECTRIC ELEMENTS
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
CONTROLLING
DECODING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
REGULATING
SEMICONDUCTOR DEVICES
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
Online AccessGet full text

Cover

More Information
Summary:PURPOSE:To provide a MOS resistance circuit which constructs a MOS transistor TR having the resistance value equal to the reference resistance and enables the power-down even when a MOS resistance is connected in series to an R string. CONSTITUTION:The resistance R and Rx are connected in series between the reference power supplies VR (+) and VR (-) with a connection terminal as VA. Meanwhile a TR Q1 and a resistance Ry are connected in series between both supplies VR (+) and VR (-) with a connection terminal as VB respectively. Furthermore these terminals VA and VB are defined as a plus input and a minus input respectively and an operational amplifier Op 1 is connected. The output terminal VG of the Op1 is defined as the gate input of the TR Q1. Then the TR Q1 is made to operate in a non-saturated state when both terminals VB and VA are virtually grounded, and the resistance value of the TR Q1 is controlled at (R/Rx).Ry.
Bibliography:Application Number: JP19920286427