[aprssig] EMI Help (fixed)

[Stephen H. Smith]

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.