1) gerbv - A Free/Open Source Gerber Viewer
You can download the source code from this page.
2) View 3D objects with STP viewer
Designing Thermal Vias
Enhancing thermal transfer for FR-4 PCBs can be achieved cost-effectively by incorporating thermal vias and plated through-holes (PTH) betwe...
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A voltage divider resistor network could be used for stepping the monitored voltage down to the range necessary for A/D conversion. A pass... -
This EMI filter includes a common-mode filter and a differential-mode filter. Generally Differential mode filter filters noise less than 3...