Mosaic
Well-Known Member
Hi, I have an app with a 16F886 PCB within 6 inches of sharktooth 50uSec,250Hz high current pulses (700A). Further, the 5V uC power comes from a supply within 2" of those pulses. So far I have implemented a 500uH .15 DC ohm CM choke with 2 x 4.7uF ceramics as a Pi filter on the uC PCB power input. This is supplied by the 6" of twisted pair.
Would grounded alum foil shielding be advisable for the uC PCB? The system is still under design.
Edit:
Seems transferring 12V pwr and using local 5V vreg is more cost effective than doing the pi filter.
Would grounded alum foil shielding be advisable for the uC PCB? The system is still under design.
Edit:
Seems transferring 12V pwr and using local 5V vreg is more cost effective than doing the pi filter.
Last edited: