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need 48vdc to 12 vdc converter | 14 comments (14 topical, 0 editorial)

Re: need 48vdc to 12 vdc converter (3.00 / 0) (#8)
by joelhacker (joel dot hacker at motorola dot com) on Thu Jun 23rd, 2005 at 11:14:22 AM MST
(User Info)

Just remember by Ohm's power law, and that you would be
switching ~25V AMPS @ 48 Volt DC if your transistor were
on all the time to get 1kW. However, since your switching
is on and off, then your power increases as your duty cycle
(avg time on/avg time off) decreases.

Your transistor(s) must be able to handle the current involved
in this type of switching.

Also, remember, that you will have a ripple voltage which
will be dependent upon the size of your capacitor, your inductor.

[ Parent ]

need 48vdc to 12 vdc converter | 14 comments (14 topical, 0 editorial)

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