# Tutorials and Projects

Dive into the world of microcontrollers and electronics.
Discover tutorials and projects on DevXplained and inspire yourself for your own.

It is used in many products and is de facto the standard rectifier: the full-wave bridge rectifier. Let's discover how it works.
A popular application for diodes are rectifier circuits. Today, we are going to look at a simple half-wave rectifier.
Let's look back at what we learned in this project series and talk about which solution fits which use case.
Last time we built an AC source using a transistor H-bridge. This time, we replace the transistors with MOSFETs to improve the efficiency.
We built ourselves a working, but quite complex AC source. However, our solution is not the only possible one.
It's time to add the finishing touches to our op amp circuit with push-pull stage. Let's improve its efficiency.
Additionally, to amplifying our AC signal using an op amp, we are now going to use a push-pull stage to further increase the output power.
In the last part of this project, we used an op amp to increase the current. This time we are going to increase the output voltage.
After we learned about different ways to generate a sine wave, it is now time to speak about amplifying the output signal.
Today, we are going to look at a third method for generating a sine wave with an Arduino: using the Arduino's PWM output as DAC.
We already created a sine wave using a DAC. Today, we are going to try out another method: transforming a square wave into a sine wave.
Let's move on and generate a sine wave signal for our AC source. Our first approach: using a DAC.
Normally we power our circuits with DC. For experimenting with rectifiers, however, we need an AC source. So, let's build one!
Before we look at rectifier circuits, let's take a brief look at alternating current.