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DARWIN Revisions IREC-2022

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DARWIN Revisions IREC-2022

Mar 03, 2022

Revision

Info

Revision

Info

Jan 22, 2022 @Ben Hyman (RIT Student)  Heat Dissipation Resistor on LDOs

  • Look at R1 on SPICA Power Supply 

  • Possibly change to another LDO for better heat dissipation?

  • LTSPICE Sims

    • 3.3V:

    • 5V:

Jan 22, 2022 @Ben Hyman (RIT Student) Supply Capacitors on both batteries to prevent brownout

  • 100uF at battery input

  • 47uF at LDO outputs

  • Polarized electrolytic capacitors

  • Will give much more wiggle room in case of brief battery disconnects from vibration 

Jan 22, 2022 @Ben Hyman (RIT Student) Voltage sensing on both batteries instead of one 

  • Copy the same voltage sense that is currently on DARWIN and put into another analog pin

Jan 22, 2022 @Ben Hyman (RIT Student) Re-place components to make room for new stuff 

  • Make board more dense

  • Place things as close as they can to each other

  • Utilize top and bottom sides

Jan 22, 2022 @Ben Hyman (RIT Student)  @Dante Sivo (RIT Student) @ whoever else worked on DARWIN Put names on silkscreen 

  • We forgot to do this for the first revision

Jan 22, 2022 @Ben Hyman (RIT Student) Update revision number on DARWIN silkscreen 

  • Probably v1.1