Power & Thermal Subsystem

 

AOCS Converters

The AOCS Converters connect the Attitude and Orbit Control Subsystem (AOCS) to the Main Bus via current limiters. The converters provide regulated, step-down power to the Processing Electronics, Control Electronics, and the Latching Valves and Flow Control Valves in the Reaction Control Subsystem:

  • +28V ± 1.4V

  • +14V ± 0.7V

  • -14V ± 0.7V

  • 7V ± 0.35V

  • 26.9V ± 0.9V

There are two converters, which are operated in cold redundancy. AOCS converter 1 is the unit normally operating.