Alternating Current
1. How to convert AC to DC?
It is achieved through a circuit component called a rectifier. Rectifiers are typically constructed from diodes, which allow current to flow only in a single direction.
2. How to convert DC to AC?
It is achieved by using a device called an inverter. Inverters are designed to take the one-way flow of DC and convert it into the oscillating flow of AC. The entire conversion is primarily controlled by a component known as an ‘H-bridge’.
3. What is wattless current?
The current in an AC circuit is said to be Wattless Current when the average power consumed in such circuit corresponds to Zero. Such current is also called as Idle Current.
Working Principles of Alternating Current Generator
Do you ever wonder what kind of current flows in the power lines of our household? Is it the same current that is generated in electronic devices with DC battery supply or is it something different? In this article, we will discuss a different current that alternates i.e. varies in magnitude and direction. This type of current is called alternating current.
Alternating current is generally seen flowing in power lines(telephone cables, office lines) and normal household electricity that comes from a wall outlet. It is basically used for industrial, chemical, and domestic power usage where it is transmitted over a long distance. The most common frequency for AC power in many parts of the world is 50 or 60 hertz (Hz), meaning the direction of the current changes 50 or 60 times per second. On the contrary, we have DC current which flows in one direction and doesn’t change polarity.
In this article, we will see all the terminologies related to AC current, the method used for generating AC current, and the difference between AC and DC current. We will also discuss the phasors and the application of AC currents. The later part of this article will talk about AC circuit analysis.