do floppy drives need a switching p/s?
blarson at blars.org
Fri Feb 17 05:27:52 CST 2006
In article <20060216012335.87648.qmail at web61020.mail.yahoo.com> you write:
>I'm guessing so. Am wondering if the 1.67 amp 24 vdc
>regulated wall warts from BGMicro are sufficient to
>power an 8" floppy drive (NEC FD1165-A). Needs 24 vdc
>@ 18 watts. Would love to devise a circuit to get the
>5 vdc (@ 5 watts) off the same brick, but that may be
>asking too much ;).
24v 18W is .75 A, well within the stated specs.
5v 5W is 1A, so a liniar regulator would overload the wart, besides
needing to dissipate 19W.
A switching regulator should have no problem doing the 24v to 5v 1A
conversion. http://romanblack.com/smps.htm has some lower current
Blars Blarson blarson at blars.org
With Microsoft, failure is not an option. It is a standard feature.
More information about the cctalk