[time-nuts] Parallel voltage regulators

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Oct 26 17:17:00 EDT 2007


Considering the efficiency and easy availability of switchmode
supplies these days, I would never bother with a linear regulator
in a new design.

For instance national has a series of switch mode regulators (LM25xx)
which just requires a coil and a diode more than the usual LM78xx
types.

If you are worried about noise from the swichmode, you can add more
filtering to the output.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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