A voltage divider resistor network could be used for stepping the monitored voltage down to the range necessary for A/D conversion. A passive low-pass filter is used for noise rejection.
General PCB Routing Techniques
For traces that don't need specific impedance or high current, a 10 mil trace width is fine for the vast majority of low-current analog ...
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This EMI filter includes a common-mode filter and a differential-mode filter. Generally Differential mode filter filters noise less than 3... -
I've crafted a circuit designed for high-voltage (up to 100V) and high-current (up to 33.6A) applications, specifically for switching ...