Hello people, i'm new to electronic circuits.
I have a trouble to calculate the resistors for a optocoupler type "CNY74-4" (quadruple optocoupler IC)
I need to isolate two parts of a electronic circuit, the first work at +12/+20V DC, the second at +5V DC.
There is a simple formula to calculate the two resistor for each optocoupler?
Thanks to all.
Roberto
I have a trouble to calculate the resistors for a optocoupler type "CNY74-4" (quadruple optocoupler IC)
I need to isolate two parts of a electronic circuit, the first work at +12/+20V DC, the second at +5V DC.
There is a simple formula to calculate the two resistor for each optocoupler?
Thanks to all.
Roberto