Balloons Gen 3 BMS

Cupcake
Part of the HABEES series
Chief Designer	Zachary Belateche
Technology Line	Balloons Core Power
Version	Generation III
Name	Cupcake
General
HONEY Standards • Venom Breakout • Fang Breakout • Board Naming
Core Architecture
Gen 1 Architecture • HONEY
Core Avionics
Oscar • Cookie Monster • Elmo • The Count
Core Power
Apple Turnover• Biscuit
Core Peripherals
Medusa • Cobra • Viper • QueenBee • ProtoBee
Core Radio
Macaw
Test & Prototype
QueenBee
Guides
Making a HONEY Board • Using STINGR • Using QueenBee • Making a Prototype
V • E

Cupcake is the 3rd iteration of the Battery Management Ssystem for the HABEES Standard Avionics Platform. It addresses the complexity issue of the previous generation by removing the data collection circuitry/microcontroller, and adding a separate power path for expansion boards. It is compliant with the Gen 2 Architecture.

Outputs:

• Main Avionics Power Path
  • 3.3V, 5V
• Expansion Board Power Path
  • 1.8V, 3.3V, 5V
• Shared raw cell voltage (VBAT)
  

Features of each power path:

• Voltage and Current Protector (Undervoltage 3V, Overvoltage 5V, Overcurrent 5A)
• Buckboost for 5V and LDO (low dropout regulator) for 3.3V
  

Additional features:

• Temperature Monitor (Overtemp 50C, Heater activated at -10C)
• inboard heater
• Status LEDs for charging indicator and faults

Testing

Cupcake is planned to be assembled in the fall of the 2018-2019 academic year, with the first launch planned for Winter 2019.

Schematics

• G3 top.JPG

  Top Sheet
• G3 ldo.JPG

  Batteries
• G3 boost.JPG

  Boost
• G3 output connectors.JPG

  Output Connectors
• G3 protector.JPG

  Protector
• G3 tmon.JPG

  Temperature Monitor
• G3 usbcharger.JPG

  USB Charger