AEP Mechanical and Power System

1. AEP Mechanical and Power System H. Heetderks

2. Power System Requirements • System provides 21 switched and current limited services, each with a voltage and current monitor • Power on reset circuit detects brown out on primary side • Filtering and shielding at outputs to reduce converter noise seen by instrument • Filtering on inputs to protect system against CS-06 EMC test • Fully redundant DC-DC converters • Includes Analog Multiplexor and ADC to digitize 128 channels including power system voltages and currents NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

3. Power System Requirements, Switched Outputs NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

4. Analog Multiplexer and ADC Inputs (1) NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

5. Analog Multiplexer and ADC Inputs (2) NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

6. Power System Block Diagram NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

7. Schematic of Low Voltage Converter Board NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

8. Schematic of Power Controller Board NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

9. Schematic of Limiter, Monitor, Switch Circuit NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks

10. Power System Development Status • ETU Power System Fabrication and Debug is Complete • Flight Unit Mechanical Parts Complete and in Stores • All EEE Parts in House for Flight Unit Fabrication • Flight Printed Circuit Boards will be Etched following ETU System Test NCKU UCB Tohoku AEP Mechanical and Power System H. Heetderks