App note: Nonideality of ground

Ground in PCB design, another app note about grounds from Renesas. Link here (PDF) Ground is supposed to be ideal. It should be a black hole for stray currents where the voltage is always zero. Unfortunately, those stray currents travel through some non-superconducting material, so small voltages arise. You may not notice small changes in […]

App note: Need for power and ground cleanliness

  Some tips and tricks on how to reduce noise on PCB power and ground traces. It warns digital engineers that the analog nasties are lurking in power supplies, and can cause unexpected surprises for inexperienced PCB designers. Many times electronic system failures are blamed on the parts when the real cause was human error. […]