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public

join:2002-01-19
Santa Clara, CA
reply to elios

Re: PSU's and DC-DC convters or Is There An EE In The House!?

said by elios:

ok so im trying to see if there is way to convert 24volts at 47amps to say 30volts at 40amps or even some thing close at 40amps

Of course it is possible to design a dc/dc converter that does that.
In your case the problem is likely voltage drop over interconnections at high current.
Cheap off the shelf designs are rarely more than 90% efficient.


elios

join:2005-11-15
Springfield, MO

even 80% would get me there
i only need to get at lest 26v and 44amps



Jason
Stowage Class Traveler
Premium,Mod
join:2001-01-24
38.2967 Lat
kudos:3
reply to public

said by public:

Of course it is possible to design a dc/dc converter that does that.
In your case the problem is likely voltage drop over interconnections at high current.
Cheap off the shelf designs are rarely more than 90% efficient.

I dunno.. We regularly only get a 1.2-1.5V drop when passing 3-4 thousand amps in our equipment.

Of course, this is wired with 8 pairs of 444mcm DLO cable as the interconnects

Our 10,000 amp systems have a voltage drop about the same with only 4, 750mcm cables as the interconnections.
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