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Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
The simple, and reasonably efficient solution, which will also provide mains isloation (I think) is something like a 3.3kVA 240-110 site transformer like this one:
If you shop around you should find one for a few dollars/quid/euros, etc.
Registered Member #9252
Joined: Fri Jan 04 2013, 06:27AM
Location: Andromeda
Posts: 253
I use gloves. :). A coward stick. That's it's new name. And i never work on circuits with power going through them. Plus i usually use really well insulated pliers. And the thing will be mounted on a pcb. So i know about safety. And a 1000 pound piece of metal (Joke) isn't exactly practical for a pcb
Registered Member #3900
Joined: Thu May 19 2011, 08:28PM
Location:
Posts: 600
ExplodingLikeYeah! wrote ...
And the thing will be mounted on a pcb. So i know about safety. And a 1000 pound piece of metal (Joke) isn't exactly practical for a pcb
Well neither is a variac, or a 3kw resistor. Maybe a smps, but the inductor would still be large to handle that power. There is no pcb mount option at this level, you need to decide on a safe, efficient solution: a transformer or a smps. We've given you all the practical options, the rest is up to you.
Registered Member #9252
Joined: Fri Jan 04 2013, 06:27AM
Location: Andromeda
Posts: 253
So not even a buck converter would work. And none of those solutions would be practical for me. I'm not willing to spend lots of money. But if i think about it for a moment. Designing a 100:50 ratio transformer could be that hard?
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Voltage divider.
