Resistor on AddOhms by Bald Engineer

Voltage Divider As a Regulator? | #22

Sat, 14 Oct 2017 08:51:00 +0000

Previously, we looked at resistor voltage dividers. Sometimes I get questions about using these instead of regulators. In this video, I show why that doesn’t work. In fact, I go one step further and show that Zener regulators do not work either.

Voltage Divider as a Regulator Show Notes

Links

Zener Diode makes for a lousy regulator 3 (baldengineer.com)

In the episode, I am featuring the Adafruit Huzzah ESP8266 breakout 4. I highly recommend this board if you are interested in the ESP8266. It doesn’t have a serial to USB interface. However, it is far more reliable (and usable) than those worthless $5 8266 boards on eBay. (By Far.)

How Switching Regulators work | #18

Tue, 12 Apr 2016 08:51:00 +0000

Video

Switching regulators make use of the energy storage properties of capacitors and inductors. A transistor, or switch, controls the charging and discharging. This method makes for an efficient regulator but can be difficult to design.

Show Notes

Here are links to the products mentioned in AddOhms #18:

Episode 8: LEDs and Current Limiting Resistor

Mon, 10 Feb 2014 21:00:00 +0000

https://youtu.be/81zNcctopBI

What was the first electronic component you played with? It was probably a LED. They’re fun to blink in patterns or learn to fade. Most projects (and products) use them for useful indicators.

LEDs add magic to every electronics project. Often not understand is what else you need to make that LED work correctly. Learn what current limiting resistors do for LEDs and watch what happens when you don’t use one.