Voltage regulator tutorial & USB gadget charger circuit

This video covers the basics of linear voltage regulators - what they do, how to wire them up, and where to find them. Then I give a basic example of how to build a 5V supply that can be used to power USB powered gadgets. Don't forget to subscribe!

This video builds on material covered in my tutorial on building unregulated power supplies:
http://www.youtube.com/watch?v=cyhzpFqXwdA

Category:

Science & Technology

Tags:

• 7805
• voltage
• regulator
• linear
• electronic
• tutorial
• USB
• charger
• circuit
• design
• LDO
• dropout
• electronics

[nbgydf]

would a .47uf cap work instead of the 0.1? case thats all i have lying around

[Afrotechmods]

@nbgydf Is it a ceramic capacitor? If yes, it'll be fine. If it isn't, it'll probably still be okay unless you are powering something sensitive like a microcontroller.

[arnoikke]

if you want to save on a heatsink, is it ok to add a voltage divider of two resistors to bring the input voltage closer to the minimum required input voltage of the regulator?

[Afrotechmods]

@arnoikke No - check out my voltage divider tutorial video to see why.

[goeb1]

pfff... progress...

I really liked that one ;)

[TheNick9931]

Durasmell wow :D

[freshkryp69]

anyone have a xtra nuclear powered flux capacitor? i need for my amps in my ride! im looking for 1.1 jiggawatts!!

[cubemike99]

I connected a 10uF 20V tantalum capacitor across the input and ground pins and it exploded... I'm pretty sure I got the polarity right. What happened?

[Yanglike]

would this setup work with a 12V sun panel instead of battery ?

[GaroBlu]

Thanks for a great video!

[Rafikje]

LOL DURASMELL

[stylerwilson1]

Very nice tutorial...

[FeRgArAm]

i tried doing this but from 120V to 12V... and i found out what hapens if u use 10uf 50V caps...

[nbgydf]

@Afrotechmods thanks