Hallo Rob,

don't be angry. You focused on only zero crossing detector and I assumed from your posting that you mean total power supply. Ok, may be that's my mistake.
I'm not interested in any confrontation that leads to insultings and offendings. Just want to have discussion. So, I apologize, if you want. Would you please be so kind to avoid phrases like 'teachy eggs' and 'piss off'?

Bye,
Kai