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[aprssig] EMI Help (fixed)

Stephen H. Smith WA8LMF2 at aol.com
Sat Aug 14 07:50:12 UTC 2004


Andrew Rich wrote on 8/12/2004, 9:50 PM:

 > What is the best way to get from car volts (14Volts) down to something
 > acceptable for a 5 volt regulator ?
 > Most of the problem from running off the car is heat dissapation. Getting
 > from 14Volts down to 7ish volts.
 > Voltage divider ?

A switching mode regulator.  Most are 70-85% efficient and produce 
virtually no heat at all.







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