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Switcing power supply suggestion

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toxadi

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I am about to build a switcing power supply from 220VAC to 13.8Volts 35-40Amps. Any suggestions for the switcing IC for so big currents?

regards
 

toxadi said:
I am about to build a switcing power supply from 220VAC to 13.8Volts 35-40Amps. Any suggestions for the switcing IC for so big currents?

regards
Click to expand...

Since the switching device is a MOS, the critic part is not the IC itself.
Look at the power supply section of the ARRL Radio Amateur's Handbook (it is also available in PDF format) where there is a good 13.8V 40 A design.
Regards

:wink:
 

hi,where can i get the PDF book?
i know the problem is how to drive the switch MOSFET,maybe some driver ic.
 

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