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ASIA PACIFIC SATELLITE INC
Striving for Space and Mankind

Space Technology

Micro satellite avionics

Micro satellites are low in production and launch cost which make them appropriate for constellation service using multiple satellites. Satellite platform avionics is required to develop satellites supporting such service.

Micro satellites are low in production and launch cost which make them appropriate for constellation service using multiple satellites. Satellite platform avionics is required to develop satellites supporting such service.

Asia Pacific Satellite Inc. retains the System Control Unit (SCU), and the Power Control & Distribution Unit (PCDU)  which compose the ultra-small satellite avionics.

Main Features
  • · Small/Lightweight high-performance/high-reliability OBC based on commercial satellite technology
  • · Centralized OBC integrating core functions necessary for satellite control
  • · Large capacity PCDU optimized for ultra-small satellites

Key Performance
  • · KSLV-II Performance Verification Satellite (PVSat to be launched in 2022)
Key Specifications of System Control Unit (SCU)
  • · LEON2 (AT697F) processor
  • · Standard communication interface support
  • · BUS & Payload control & monitoring I/O provided
  • · TC/TM function and reconfiguration function support
  • · Special command port support
  • · S-band transmission and reception function support
  • · Mass: ≤ 7kg
  • · Dimension: 300mm x 205mm x 190mm

Key Specifications of Power Control & Distribution Unit (PCDU)
  • · Input voltage: 36V (30V ~ 41V)
  • · Secondary voltage: 5V, 15V, -15V, 28V
  • · LCL protection circuit applied
  • · Battery protection
  • · MPPT & CV mode support
  • · Mass: ≤ 7kg
  • · Dimension: 160mm x 252mm x 214mm