Circuits 101

If you’re first starting to learn about basic circuits or basic electronics, it’s best to take a brief few minutes to understand the basics of electricity and some of the ...

Ohm’s Law is a foundational equation in basic circuits and is amazing in its simplicity and its usage. In this tutorial, we’re going to learn about what Ohm’s Law is, where you ...

Every step in the learning process is necessary to build the foundation for the next step. In some cases, that’s more true than other times. In this case, this is doubly the case, ...

In the basic circuit tutorials up to this point, we have generally represented a voltage potential by just assigning a node one potential and another node a different potential. ...

While we’ve discussed Ohm’s Law and series and parallel circuits, you’ve probably realized by now that there are many situations where these methods come short when trying to ...

We have gone over Kirchhoff’s Current Law (KCL) in a previous tutorial and Kirchhoff’s Voltage Law (KVL) is very similar but focused on the voltage in a circuit, not the current. ...

Even with KCL and KVL, as circuits get more complicated, sometimes the setup and the math can become quite complicated. However, using the superposition theorem, in certain ...

When solving DC circuits using Kirchhoff’s Current Law (KCL) or Kirchhoff’s Voltage Law (KVL), you will often get multiple related equations and multiple unknown terms. The nice ...

Thevenin’s Theorem (or Thévenin’s Theorem, if you know the right shortcuts on your keyboard) is a fan favorite of circuits professors around the world. Used in conjunction with ...

Similar to Thévenin's Theorem, there is a way to simplify a circuit and represent it with only two components. Unlike Thévenin's Theorem, Norton’s Theorem uses a current supply ...

Operational amplifiers, or op-amps, are a beautiful thing. They provide relatively high amplification with relatively low noise or distortion, are pretty darn cheap, flexible in ...

The op-amp voltage follower is about as simple as you can get when it comes to setting up an op-amp. But despite the ease with which you can set up a voltage follower, this ...

We introduced operational amplifiers in the last video and we talked about how using two simple principles they were quite easy to use and to calculate all the stuff around them. ...

Perhaps unsurprisingly, given their name, operational amplifiers are very often used in amplifying circuits. They are put together in either an inverting or non-inverting ...

We’ve already discussed how we can take the help of Kirchhoff's Current Law (KCL) to determine the direction and magnitude of the current flowing in and out of the nodes, and ...