DIY Turbopump Controller

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
John Futter
Posts: 1707
Joined: Thu Apr 22, 2004 2:29 am
Real name: John Futter

Re: DIY Turbopump Controller

Post by John Futter » Fri Feb 12, 2021 6:16 pm

It is hard to use linear optos to get volt and current sense across I make sure that there is series impedance then 5 volt TVS diodes across micro I/O pins

my comments were directed at some of the other posts where micro derived drive signals are use to drive the half bridge directly
a TMP 50 has about the same energy as a .22 LR cartridge where as a TMP150 is more like a .308 cartridge amount of stored energy

User avatar
Nicolas Krause
Posts: 141
Joined: Fri Sep 30, 2016 11:36 pm
Real name: Nicolas Krause
Location: Canada

Re: DIY Turbopump Controller

Post by Nicolas Krause » Sat Feb 13, 2021 6:02 pm

Thanks for the clarification John, I've added the suggested circuit protection, now I just have to spec everything and layout the board! That's a nice way of thinking about energy as cartridge size, it's been awhile since I've been on a range but even though .22 LR is small I wouldn't want to be hit by either.

Post Reply