So fascinating, thank you. Also loved your voice imitation at 7:13 ha ha
@platin2148
9 ай бұрын
I‘m still amazed that they still use Transformers..
@MrTamhan
9 ай бұрын
Thanks for talking back man. Probably, they do it to satisfy galvanic isolation!
@michaelterrell
9 ай бұрын
What would you suggest as a reliable and cost effective replacement? Something that can provide reliable HV isolation? That can shut down at its designed current limit? Something small enough to make sense?
@MrTamhan
9 ай бұрын
Hello, thank you. IMHO, I still consider transformers the most efficient approach...also due to the recharge losses on caps... @@michaelterrell
@rasimbot
9 ай бұрын
What country do you live in?
@MrTamhan
9 ай бұрын
Austria, Hungary, Slovakia.
@michaelterrell
9 ай бұрын
Capacitors are the weak link in all of Electronics. You have to trade lifetime for practical costs. Also, in some circuits, the LV electrolytics have to be as close as possible to the major load. I've had 'genius' types argue that the electrolytics on computer mother boards all be grouped to a corner of the board, to stay away from the CPU's heat. They can't grasp that the CPU is very low voltage and can draw over 100Amps. Long power rails destroy both voltage regulation and reduce noise immunity. One thing that bothers me is when boards are laid out for extra capacitors in this type circuit, but they use just barely enough to make the boards work. This puts a higher ripple current through each remaining capacitor. That generates mot I/R losses, which destroys the capacitor much faster. You and I have both worked with well designed, industrial grade Switch Mode power supplies. Great regulation, low ripple at the output, and designed to run 24/7 for at least a decade. To saw a dollar or two in manufacturing, consumer grade designs only give a couple years service, on average.
@MrTamhan
9 ай бұрын
Hello, thank you so much for talking back! Yes, the Muntzing is kind of insane nowadays. But what can you do...its the markets wish, sadly...
@michaelterrell
9 ай бұрын
@@MrTamhan I add more caps, when making a repair, and buy the best capacitors that I can afford. I spent many years working on Mission Critical equipment. Done properly the repair will last at least as long as it did when new.
@MrTamhan
9 ай бұрын
Thanks man. In this case, probably the repair will outlast, by far, the original! I had a full fleet of failed converters on hand @@michaelterrell
@michaelterrell
9 ай бұрын
@@MrTamhan Some Chinese OEMs love those super cheap capacitors from 'One Hung Low Caps and Fortune Cookie Company'! One long gone American company motto was, "The quality goes in, before the name goes on" Sadly, today many companies go by "Ship the damned thing, before it fails!"
@MrTamhan
9 ай бұрын
Hello, to be honest, it is often also caused by the European or American client. I will make a video on that shortly, probably when back from Vienna! @@michaelterrell
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