3 Boards – Stacked


Thoughts:

  • Enables for if main board is supplying 3V3 so sub-boards dont need it?
  • Or just keep different, Isolated 3V3 for each board
    • Can't really do this because XMC is gonna attach to all three stacked boards
      • If the boards are individual, the 3V3 still needs to be there to power XMC 
  • Would be cool if they could work independently with their own XMCs, or stacked


  • Top Board:
    • Power Supplies
      • 28V Incoming
      • Switching to 9V?
        • LDO to 5V
        • LDO to 3V3
          • This 3V3 will likely be digital supply for whole DAQ, gotta watch for power consumption / current
    • Thermocouples
      • These use 3V3 just like the XMC does
  • Middle Board:
    • Power Supplies
      • Takes in 28V from Top Board or external header?
      • LDO to roughly 26 for Current Loops
      • Charge Pump to get ±2V5 for ADC 
      • LDO
    • 12x Current Loops
      • Needs Regulated 26V
    • ADCs
      • ±2V5
      • 3V3 
  • Bottom Board
    • Power Supplies
      • Takes in 28V from Top Board or external header?
      • 3V3 Charge Pump for Full-Bridge
    • Deployment Channels
      • Needs GPIO
      • LiPo Battery for current draw of charges
      • Might be cool to have LiPo charger too
    • 4x Full-Bridges
      • Needs ±3V3 for amplifiers


  • Aucune étiquette