Electric power is an important, yet often misunderstood concept in electronics and electricity in general. This post will attempt to shed some light on it, and answer the age-old question: what is a watt?
Understanding electric power and the associated concepts is a very important part of circuit design. If a component tries to dissipate too much power, the magic smoke comes out. We’ve all had this happen at one time or another.
At first, I was going to make this one post. It soon grew into a monster as I went on to explain all (ok, some) of the concepts surrounding electric power.
Electric power includes concepts like real power, apparent power, power factor and more.
The first part of this series will start by tackling one of the most confusing, yet fundamental aspects of it – power vs energy. Then, we’ll take a look at power in DC circuits and purely resistive AC circuits. After that, the series will delve into power in circuits that contain reactive components like inductors and capacitors.
If knowledge is power, then knowledge of power is power squared!