EEVblog #929 – Designing A Better Multimeter

Dave looks at the current measurement front end of a typical multimeter and figures out how to redesign it for lower burden voltage.
It’s not quite as easy as you might think, there are compromises and traps for young players.
And something you probably didn’t know about HRC fuses.

µCurrent article: <a href="http://www.eevblog.com/files/uCurrentArticle.pdf" target=”_blank” rel=”nofollow”>http://www.eevblog.com/files/uCurrentArticle.pdf
Multimeter fuse and diode protection video:
https://www.youtube.com/watch?v=ne_Prn0eGQE
Multimeter input protection tutorial:
https://www.youtube.com/watch?v=zUhnGp5vh60

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