Memristor block diagram

Memristor: 4th Passive Component After R-L-C

Introduction to Memristor

Hey, have you seen the memristor? Did you learn in your engineering about memristor? Do you have any idea about it? So what do you think about the memristor? Yes, here I am going to explain it and my investigation also still ongoing on it and I will update if any new concepts I will get it from my research. Actually, we all know as there are three electrical components that are there which are helping us to design any circuit. But I think most people don’t know as there is another component get discovered as a 4th passive component called Memristor. Why the name is given as a memristor because of its construction, properties, and features a combination of both memory + Resistor. Well, let us go discuss it deeply step by step why the Memristor: 4th Passive Component After R-L-C is trending in the semiconductor industry. If anyone is having any new concept please revert me here by mail-in

What is Memristor?

The Memristor is extending for Memory resistor. It is ahypotheticalnon-linear two-terminal electrical passive component that relating electric charge and magnetic flux linkage. It is a combination of both memory and resistor (memory + resistor).

History of Memristor?

The concept of memristic ormemristor theorywas invented byLeon Ong Chua. He was a professor in the departments of computer sciences and electrical engineering at the University of California. He published his seminar paper, “Memristor– The missing circuit element.” IEEE Trans. Circuit Theory CT-18, 507-519 (1971). In this paper, Prof. Chua proved a number of theorems to show that there was a ‘missing’ two-terminal circuit element from the family of “fundamental” passive devices: resistor, capacitor, and the inductor (e.g. elements that do not add energy to a circuit).

He proved that no combination of nonlinear resistors, capacitors, and inductors could duplicate the properties of a memristor. still, now the technology was just a theory technology but the practical model of the memristor was designed by Stanley in the year 2006. He was a scientist of HP lab and trying to discover the crossbar switches, then he realized the memristor switch performance. The memristors are also known as matrix switches because it is mainly used for connecting several inputs as well as outputs in the form of a matrix.

Construction of Memristor: 4th Passive Component After R-L-C

You all are knowing about the resistor, inductor, and capacitor. You also know their construction and if someone still having some doubt or want to know, then please go to my electrical & electronics tutorial topics for getting deep knowledge on it. Ther all three are electrical passive components. They all are having their own physical construction as you all know. But here I gonna explain to you about the 4th element of an electrical passive component. Which really wonderful and innovative element in the electrical and electronics engineering department. Which will be the mile point or we can say the golden age for the Electrical and Electronics department.

Memristor block diagram

A physical memristor is a combination of memory and resistor. Basically it is called the memristor is the 4th passive component after rlc. The material can be changed as per the type of memristor. The material used in between the two electrodes is creating the resistance of this device depends on the polarity, magnitude, and length. When the voltage is turned off, the resistance remains as it did just before it was turned off. This means it holds the previous voltage which makes the memristor a nonvolatile memory device. Since these two properties are having in a single device, it named Memristor nothing but the combination of Memory + Resistor.

Working Principle of Memristor

The working principle of a memristor (memory resistor) is based on the interaction between charge and flux through a two-terminal passive device. A memristor is a resistor whose resistance depends on the amount of charge that has flowed through it in the past.

The basic idea behind memristors is that the resistance of the device is proportional to the amount of charge that has flowed through it. This relationship is described by the memristance, which is a fundamental property of the device.

When a voltage is applied across the memristor, charge begins to flow through the device, causing its resistance to change. This change in resistance is recorded by the device and can be retrieved later by applying another voltage across the memristor. The resulting current through the device will be proportional to the previous amount of charge that flowed through it, allowing the stored information to be retrieved.

One of the key benefits of memristors is that they can be used to store data in a non-volatile manner, meaning that the data is retained even when the power is turned off. This is in contrast to traditional memory technologies, such as DRAM, which require a constant power source to maintain their data.

Overall, the working principle of a memristor is based on the interaction between charge and flux through a two-terminal passive device, allowing for the creation of a new type of memory technology with unique properties and potential applications in computing, storage, and memory systems.

Advantages of Memristor

  1. Non-volatility: Memristors can store data in a non-volatile manner, meaning that the data is retained even when the power is turned off, making it a promising technology for data storage applications.
  2. High Density: Memristors have the potential for high storage density, allowing for the creation of compact and highly efficient memory devices.
  3. Low Power Consumption: Memristors have a low power consumption, making them an attractive solution for energy-sensitive applications such as mobile devices and Internet of Things (IoT) devices.
  4. High Speed: Memristors have fast access times, allowing for quick and efficient data retrieval.

Disadvantages of Memristor

  1. Limited Availability: Memristors are still a relatively new technology and are not yet widely available on the market, limiting their accessibility for many applications.
  2. Complexity: Memristor technology can be complex, making it challenging to manufacture and requiring specialized equipment and processes.
  3. Reliability: There are concerns about the reliability and long-term stability of memristors, especially in high-stress or high-temperature environments.
  4. Cost: The high cost of memristor technology is a disadvantage, making it less accessible for budget-conscious applications.
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