Quote Originally Posted by mister_e View Post
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But to me, as long as there's room to fit a transformer and optocoupler and keep away the AC line away of the user... i feel better and sleep all night without any problem.

I double that. Even if the end user is well isolated from the circuit, YOU are not trying to make it work. You will have to debug the circuit while alive and sure put your life in danger.

How many pcs are you going to sell? If it is say low quantity, for sure you will be paid by your time to develop the system. That money should be more than enough to let you put that transformer without second thought.

In my country people say that coward's mother will never cry over the grave! Of course it sounds more elegant in greek than the awkard translation!!!

Ioannis