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Need a sheme for DC/DC inverter 24V/12V

P

paice

Jan 1, 1970
0
I need a sheme of DC-DC inverter (24V-12V). A friend ask me to build
it for his truck. He would use it for "Webasto" heating, which works
on 12V.
P.S.This inverter must be for 20A, because "Webasto" load is at least
16A. I plan to build in BUX22 transistors (40A, 350W), 2-4 pieces.
Thanks to all!!!
 
J

Jim Thompson

Jan 1, 1970
0
I need a sheme of DC-DC inverter (24V-12V). A friend ask me to build
it for his truck. He would use it for "Webasto" heating, which works
on 12V.
P.S.This inverter must be for 20A, because "Webasto" load is at least
16A. I plan to build in BUX22 transistors (40A, 350W), 2-4 pieces.
Thanks to all!!!

Why not just buy a 24V unit? You do know they come 24V ?:)

...Jim Thompson
 
E

Ecnerwal

Jan 1, 1970
0
paice said:
I need a sheme of DC-DC inverter (24V-12V). A friend ask me to build
it for his truck. He would use it for "Webasto" heating, which works
on 12V.
P.S.This inverter must be for 20A, because "Webasto" load is at least
16A. I plan to build in BUX22 transistors (40A, 350W), 2-4 pieces.
Thanks to all!!!

Can't very likely beat buying one ready-made. They are out there.

http://store.altenergystore.com/DC-Voltage-Converters/

Looks like $85 for a 20 amp unit - 20-30V in, 12V out. That web site
often has good prices, but do shop around - I didn't really bother to
look very hard for the best deal, just an example of the device with any
price attached.
 
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