Layout rev 0.2

electronics, usbpwr

Layout for rev 0.2 is complete, it’s PCBtrain time again.  I should get the boards before the bank holiday season starts next week.

Key changes to rev 0.2:

  • Improved voltage and current monitoring on the isolated side
  • Fixed Atmega PWM pin.
  • Improved filtering on voltage rails – there is space for play here, with an excessive number of cap footprints.
  • Different inductor – higher peak current, smaller package, lower price. Also lower isolation.
  • Size is now 75mm x 50mm (was 60mm x 50mm)

Layout rev 0.2

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