Upd pcb

Robert Todo

• Verify operation of RE40 encoder new motor test stand. Appears to not be working
• Rewire 8-cell A123 battery pack to 7cell.

State / Motor Controller

• 11-26-08 : NEEDS U39 replaced
• 11-25-08: Not operational
• 11-19-08 : traced MC power. Found that 3.3V supply only goes 1V - applied 3.3V from prg adpt and MC booted. Forced R155 high and 5V MC supply worked.
• 11-19-08 : appears that MC switcher is bad. Apply 3.3V to ISP, SC boots, but MC does not.
• 11-8-08 : requires external device to hold it on...
• 10-6-08 : installed in UP#3

TODO

• replace U39

ECOs

• has battery voltage ECO

110-007

• 11-26-08 : operational
• 11-26-08 : R102 missing this is a pull up on the real time clock
• 11-26-08 : added R141 to GND ECO (force power on)
• 11-25-08 : Applied power, not operational
• 11-19-08 : Applied power, seems to run okay.
• 11-19-08 : Needs 3.3V to poweron status : component gets hot.
• 10-8-08 : received from UPD - tested - seems to be DOA
• 10-7-08 : received by UPD
• 10-6-08 : died in ankle while using the battery and under high current load - traced to 3.3V motor controller supply not working. Was used with power board that has TVS installed on caps, and external TVS were also used. Died
• 10-5-08 : installed in UP#3, made battery measurement ECO

TODO

• install R102

ECOs

• has battery voltage ECO
• has force power on ECO

110-009 (BF1)

• 11-26-08 : operational
• 11-20-08 : Needs the 24 pin flex connect to be replaced. (replaced 11-25-08)
• 11-19-08 : Needs battery measurement modification.
• 11-8-08 : has jumper wire to turn self on, but wouldn't boot until IMU attached. After first power, remove IMU and works fine.

TODO

• needs battery voltage ECO

Power Board

110-004

• 11-26-08 : benched tested for 3 days.
• 11-26-08 : has 2.0 ohm gate drive
• 11-26-08 : has 225W TVS on bypass caps.

TODO

• needs gate drive ECO