100W Ultimate Fidelity Amplifier

use any protection and instead relay put a resistor. than the voltage on it use as protection signal that will turn something on/off.

thanks friend for your answer
i want to conect this protection to my micro project
this three board must be seperat of them
i have 5 amp in one box and i must have 15 protection for those
for every one amp 3 protection:
1. DC protect
2. over curent protect
3. short circut protect
i need 15 optocupler for this 15 protection
sorry for my english
are you underestand?
 
hi qq12e5k1,
can u share this layout in pdf format.
 

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