All Tutorials

In our discussion about how an RGB LED works, we’ve mentioned that an RGB LED is basically an LED package with three internal LEDs (red, green, and blue) inside it. In order to ...

While LEDs may be everywhere now, that obviously wasn't always the case. So how did we go from no LEDs to LEDs in nearly everything on the planet? As we researched it, we were ...

We took apart two LED lightbulbs, a CREE LED bulb from 2014 and a Philips bulb from 2018, and compared their build quality, the electronics, and their overall design. It was ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

Dimming is the process of varying the light output of a light source. This is done to set the ambience or to save energy when full light output is not really needed. Most of ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

In our discussion with the pn junction, we mentioned that the pn junction is the basis for diodes. Diodes are one of the most widely used devices in electronics and they have ...

We've discussed a lot about LEDs like how it works in a semiconductor level, its pros and cons, and how an individual LED can be dimmed through constant current reduction (CCR) ...

Ask an Electrical Engineer is a series where frequently asked questions from non-engineers will be answered by an engineer. For this video, our main topic is all about LEDs ...

Why do we need a resistor for an LED? Once you pass the forward voltage, a slight increase in voltage makes a huge increase in current. You don’t wanna blow things up!

LEDs are better than other light sources in most applications. While they are more efficient, there are a lot more things to consider when buying a lightbulb than just how much ...

In our previous tutorials, we’ve discussed the basics of semiconductors, band gap, current carriers, and its classification. We learned that in order for a semiconductor ...

Before we can get too deep into voltage dividers, it is essential to have a good understanding of what happens with Parallel and Series Resistors. Once you understand how a ...

Resistors are the most common electronics component in the world. They’re used in many forms of circuits as voltage dividers, to keep current levels under control with things ...

In normal conversation, power is often interchanged with a lot of similar but actually different words - energy is a big one. Power is the amount of energy that is expended ...