Jason Rabel wrote: > Does the power source for just a GPS module matter that much? Most that I've > seen just use a cheap wallwort and a lm-whatever 5v regulator chip... > nothing fancy. > > > Jason > > Wall warts do (as other supplies with high transformer primary secondary capacitance) have the unfortunate capability of coupling high amplitude transients on the mains from the primary to the secondary. The cure is simple: a non polar capacitor with an appropriate value (several hundred nF to 1uF or so) connected across the secondary - often omitted to save money. An AC traszorb connected across the secondary can also be used.
Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
