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 Voltage Dividers Work | #13

Fri, 16 Jan 2015 21:04:12 +0000

https://youtu.be/EQtwsWJuUPs

Understanding voltage dividers means understanding Ohm’s Law. A common use for a voltage divider in most projects is to monitor a battery. Say you are powering your circuit with a 9V or 12V battery. Microcontroller boards don’t do well with those voltages.

In a future video, we’ll come back and look at more circuits that can use voltage dividers.

Episode Notes

Correction: There is a mistake around 3:00. I say “91 millivolts” and I should have said “910 millivolts!”

Voltage-Divider on AddOhms by Bald Engineer

Voltage Divider As a Regulator? | #22

Voltage Divider as a Regulator Show Notes

Other videos to watch

Links

How Voltage Dividers Work | #13

Episode Notes