Rev 3.1 PD validation

https://university-of-waterloo-solar-car-team.365.altium.com/designs/4F041A85-6320-476B-BAA5-BC219D4A1B9F?variant=[No Variations]#design

Components removed:

• R127

• R6

Components adjusted/fixed:

• R135 (resoldered)

• C61 (resoldered)

• changed R7(4.7k → 1.21k)

PSU testing (13.5 V, 0.8 A limit), flashing controller board fw:

• power_distribution

  • automatically detects as rear board (in minicom)

    • LED27, LED23, LED4 stay on

    • LED1 of controller board stays on

  • VBAT: ~13.5 V

  • V5: ~5 V

  • V1: ~3.3 V

  • 

• smoke_bts7200

  • LED27, LED23, LED4 stay on

  • LED1 of controller board stays on

  • 

• smoke_bts7040:

  • LED27, LED23, LED4 stay on

  • LED1 of controller board stays on

  • 

Potential component/soldering issues

VBAT:

• bergstak pins

V1 (3V3):

• R89 (added more solder)

• R80 (added more solder)

• bergstak pins

• R102 (added more solder)

• R132 (added more solder)

• R115 (added more solder)

V5: