14-05-2012, 11:59 AM
memristor
finally.pdf (Size: 1.07 MB / Downloads: 70)
INTRODUCTION
In circuit theory, the three basic two-terminal devices — namely the resistor, the capacitor and the inductor are well understood. These elements are defined in terms of the relation between two of the four fundamental circuit variables, namely, current, voltage, charge and flux. The current is defined as the time derivative of the charge. According to Faraday‗s law, the voltage is defined as the time derivative of the flux. A resistor is defined by the relationship between voltage and current, the capacitor is defined by the relationship between charge and voltage and the inductor is defined by the relationship between flux and current. Out of the six possible combinations of the four fundamental circuit variables, five are defined.
MEMRISTOR THEORY
Origin of the Memristor
There are four fundamental circuit variables in circuit theory. They are current, voltage, charge and flux. There are six possible combinations of the four fundamental circuit variables. We have a good understanding of five of the possible six combinations. The three basic two-terminal devices of circuit theory namely, the resistor, the capacitor and the inductor are defined in terms of the relation between two of the four fundamental circuit variables.
Definition of a Memristor
Memristor, the contraction of memory resistor, is a passive device that provides a functional relation between charge and flux. It is defined as a two-terminal circuit element in which the flux between the two terminals is a function of the amount of electric charge that has passed through the device. Memristor is not an energy storage element. Fig. 3 shows the symbol for a memristor.
What is Memristance?
Memristance is a property of the memristor. When charge flows in a direction through a circuit, the resistance of the memristor increases. When it flows in the opposite direction, the resistance of the memristor decreases. If the applied voltage is turned off, thus stopping the flow of charge, the memristor
Memristorsremembers the last resistance that it had.
![Adobe Acrobat PDF .pdf](https://seminarproject.net/images/attachtypes/pdf.gif)
INTRODUCTION
In circuit theory, the three basic two-terminal devices — namely the resistor, the capacitor and the inductor are well understood. These elements are defined in terms of the relation between two of the four fundamental circuit variables, namely, current, voltage, charge and flux. The current is defined as the time derivative of the charge. According to Faraday‗s law, the voltage is defined as the time derivative of the flux. A resistor is defined by the relationship between voltage and current, the capacitor is defined by the relationship between charge and voltage and the inductor is defined by the relationship between flux and current. Out of the six possible combinations of the four fundamental circuit variables, five are defined.
MEMRISTOR THEORY
Origin of the Memristor
There are four fundamental circuit variables in circuit theory. They are current, voltage, charge and flux. There are six possible combinations of the four fundamental circuit variables. We have a good understanding of five of the possible six combinations. The three basic two-terminal devices of circuit theory namely, the resistor, the capacitor and the inductor are defined in terms of the relation between two of the four fundamental circuit variables.
Definition of a Memristor
Memristor, the contraction of memory resistor, is a passive device that provides a functional relation between charge and flux. It is defined as a two-terminal circuit element in which the flux between the two terminals is a function of the amount of electric charge that has passed through the device. Memristor is not an energy storage element. Fig. 3 shows the symbol for a memristor.
What is Memristance?
Memristance is a property of the memristor. When charge flows in a direction through a circuit, the resistance of the memristor increases. When it flows in the opposite direction, the resistance of the memristor decreases. If the applied voltage is turned off, thus stopping the flow of charge, the memristor
Memristorsremembers the last resistance that it had.