Analog Circuits

Analog circuits process signals in which the values are continuously variable over time. They work with continuous signals that can take any value within the range that they are designed for. In contrast, digital circuits deal with discrete voltage signals that have only two states, low (representing zero ‘0’) and high (representing ‘1’).

Analog electronics are used in a variety of applications where signals need to be manipulated in a continuous manner, such as in audio amplifiers, radio frequency (RF) communication systems, and sensors. Analog circuits use a variety of common components, like resistors, capacitors, inductors, diodes, and transistors to process and control analog signals.

In this series, we will learn about common analog circuits like rectifiers, amplifiers, filters, bridge circuits, op amps, and more!

Analog circuits are incredible useful. Rectifiers, for example, are used to convert alternating current (AC) to direct current (DC).This means that all of our digital electronics (TVs, phones, computers, etc…) rely on analog circuits to supply their power.

For the prospective student, learning about analog circuits also gives us the opportunity to learn more about circuit design and components like resistors, diodes, capacitors, and transistors. We will learn how these components can be combined in many interesting ways, providing deeper insight into the components themselves, as well as the circuits that they collectively form.

Learn Analog Circuits

The following articles on analog circuits are designed to be read in order, but feel free to jump around as needed.

Analog Circuits

Learn Analog Circuits

Rectifier Circuits

Filter Circuits

Complex Analog Circuits

Operational Amplifiers