Power Subsystem

1
Power Subsystem

• Drew Guckenberger
• Thomas Graziano
• Steven Keller
• Andre Kozaczka
• Jereidah Ong
• Mike Willhoff

2
Power Board

• Status
• Still Prototype
• What works?
• Regulator for solar cells
• Maxim DC/DC
• Switching Logic
• H-Bridge
• MCU
• Magnetometer

3
Power Board continued

• Still to do
• Peak Power Tracker (software)
• Monitoring battery power (software)
• New PMOS
• Pull down resistors
• Outside Integrated test
• More testing!!!!

4
Solar Cells

• Status
• Prototype Ready
• Flight Units in Progress
• Cells Crack
• Due to uneven loading
• Cant control pressure
• Solder bumps/spikes

5
Solar Cells

• Still to do
• Assess damage (cracks)
• Update/Debug Assembly Procedure
• Assemble Remaining Flight Unit Panels

6
Batteries

• Status
• Two flight units and one prototype ready
• Still to do
• Battery temperature test
• Battery cycling test
• Test charging with Microcontroller

7
Misc.

• Wiring
• 1 prototype 90 done, waiting for kill switch,
  flight pin, temp sensor line
• Still need to do two more flight units
• Label wires
• Power Budget
• Ryan working on more in-depth simulation
• Solar cell flap

8
Thanks!

• Great learning experience
• Express gratitude to Prof Campbell and the rest
  of the team