Hello, I am building Arduino Uno based voltage regulator for my homemade generator.
As a part of this project I must build power supply for Arduino and overvoltage protection for Arduinos analog input.
1.)Power supply:
How can I make Power supply that can take up to 500VAC and put out from 7v to 12v (1A would be good).
Im planing on using 220VAC to 8VAC transformer> bridge rectifier> 8v voltage regulator... Would this be OK?
2.)Overvoltage protection for analog input pins on Arduino:
What component can I use to cut off voltage if its get over 5v? And it must not affect voltage lower than 5v? (Arduino can accept voltage from 0v to 5v to analog input, i will use transfromer and rectifier to drop down 0-500VAC to 0-5VDC, but on error voltage could get higher than 500VAC and i dont want to damage Arduino).
Thank you for your anwsers!
As a part of this project I must build power supply for Arduino and overvoltage protection for Arduinos analog input.
1.)Power supply:
How can I make Power supply that can take up to 500VAC and put out from 7v to 12v (1A would be good).
Im planing on using 220VAC to 8VAC transformer> bridge rectifier> 8v voltage regulator... Would this be OK?
2.)Overvoltage protection for analog input pins on Arduino:
What component can I use to cut off voltage if its get over 5v? And it must not affect voltage lower than 5v? (Arduino can accept voltage from 0v to 5v to analog input, i will use transfromer and rectifier to drop down 0-500VAC to 0-5VDC, but on error voltage could get higher than 500VAC and i dont want to damage Arduino).
Thank you for your anwsers!