DMMI RS422 FCP LVDS 3U SPARC V8 CPU Timers WDOG EEPROM AX2000 FPGA SDRAM LVs BiL Level-0 3U BiL +12V SW +5V SW +5V SW +12V +5V - - 2- 3- 5- Ana SRAM CCSDS Fmtr Low Voltage Power Supply (LVPS) Horizon Sensor Heaters Torque Rods Magnometer Momentum Wheels BiL LVs +3.3V DC-DC Converter +5V DC-DC Converter +12V DC-DC Converter Soft +28V +3.3V +5V +12V +28V 3U Battery DC-DC Converter S/C Bus +28V SW +28V SW 2- DMMI S/A Actuators 2- Peak Power Tracker (PPT) BiL Charger Control Battery Charger Solar Array Bus EMI Filter PWM PPT LVs PPT Setpoint Analog Monitors Flexible Communication Platform (FCP) Centaur Antenna LVDS Onboard Programmable RF Front-End Master FPGA Structural and Electrical Backplane Interface - RS422 RS422 RS422 ADC 12 Horizon Sensor Momentum Wheels Magnetometer Mag Temp 2- Centaur Scrubber FPGA Ana 3U BiL 5V Flash SDRAM PROM fIGure 9. Block diagram of the Avionics Unit. low Voltage Power SuPPly Low voltages required by the avionics boards as well as switched low voltages for several ADCS components are generated by the Low Voltage Power Supply (LVPS). The JUNE 2013 ieee Geoscience and remote sensing magazine CYGNSS design is based heavily on the Juno JADE LVPS, which was tailored specifically to lower power, embedded use, making it ideal for microsatellite missions. SwRI has produced LVPSs for Orbital Express, Deep Impact, Kepler, 59