I’m not going into a massive rant about this so called “commercial” design so here is 3sec thinking:
Always on, long term. Electro caps == NO. Solid caps == YES.
Chinesium == No. Designed to specs == YES.
Design. AC can always be made a roughly smooth DC with little more than a BR and a cap. DC will pass on through the rectifier like its not even there. So if you need DC for the product, a buck regulator is all you need, with a filtered bridge rectifier in front of it. (buck reg needs to deal with your “input voltage range” which means you need to understand what AC RMS and AC P-P is and what it means through a bridge rectifier (hint : 240VRMS thru a BR is is not 240VDC its 339VDC)
Inadequate cooling and a low quality power supply
I’m not going into a massive rant about this so called “commercial” design so here is 3sec thinking:
Always on, long term. Electro caps == NO. Solid caps == YES.
Chinesium == No. Designed to specs == YES.
Design. AC can always be made a roughly smooth DC with little more than a BR and a cap. DC will pass on through the rectifier like its not even there. So if you need DC for the product, a buck regulator is all you need, with a filtered bridge rectifier in front of it. (buck reg needs to deal with your “input voltage range” which means you need to understand what AC RMS and AC P-P is and what it means through a bridge rectifier (hint : 240VRMS thru a BR is is not 240VDC its 339VDC)