MEMRISTOR

INTRODUCTION GENERALLY WHEN PEOPLE THINK ABOUT ELECTERONICS,THEY MAY INITIALLY THINK OF PRODUCTS SUCH AS PHONE,RADIOS,LAPTOPS,COMPUTERS ETC.. OTHERS HAVING SOME ELECTRONICS BACKGROUND, MAY THINK OF RESISTORS,CAPACITORS,ETC.. THEY ARE THE BASIC COMPONENTS NECESSARY FOR ELECTRONICS FUNCTION.

MEMRISTOR THEORY WAS FORMULATED AND NAMED BY LEON CHUA IN A 1971 PAPER HE STRONGLY BELIEVED THAT A FOURTH DEVICE EXISTED TO PROVIDE CONCEPTUAL SYMMETRY WITH THE RESISTOR,INDUCTOR AND CAPACITOR THIS SYMMETRY FOLLOWS FROM THE DESCRIPTION OF BASIC PASSIVE CIRCUIT ELEMENTS AS DEFINED BY A RELATION BETWEEN TWO OF THE FOUR FUNDAMENTAL CIRCUIT VARIABLES

THE REASON THAT THE MEMRISTOR IS RADICALLY DIFFERENT FROM THE OTHER FUNDAMENTAL CIRCUIT ELEMENTS IS THAT,UNLIKE THEM IT CARRIES A MEMORY OF ITS PAST WHEN YOU TURN OFF THE VOLTAGE TO THE CIRCUIT,THE MEMRISTOR STILL REMEMBER HOW MUCH WAS APPLIED BEFORE AND FOR HOW LONG THAT’S AN EFFECT THAT CAN’T BE DUPLICATED BY ANY CIRCUIT COMBINATION OF RESISTORS,CAPACITORS,INDUCTORS

THAT IS WHY MEMRISTOR IS QUALIFIED AS A FUNDAMENTAL CIRCUIT ELEMENT. THE ARRANGEMENT OF THESE FEW FUNDAMENTAL CIRCUIT COMPONENT FORM THE SASIS OF ALMOST ALL OF THE ELECTRONIC DEVICES WE USE IN OUR DAILY LIFE.