Power Distributrion System PDS Status Report

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Power Distributrion System (PDS)Status Report

• Chin E. Lin (NCKU)
• PDS-Subgroup
• MIT (M. Capell, A. Lebedev)
• NSPO (J. R. Tsai, S. Tsai, J. J. Yeh, H. Y.
  Chang)
• ETHZ (G. Viertel, K. S. Kim)
• NCKU (C. E. Lin, C. C. Li, S. M. Lin)

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Ongoing activities

• Box Mechanics Production
• Harness design
• Ongoing Boards tests
• PB2
• ESEM 3A
• ESEM 3B,
• Can bus I/F
• Boards manufacturing
• Input Stage
• Distribution Board
• Thermal analysis
• Structural analysis ?completed
• ESEM 1A and 1 ESEM 3A test ? completed

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EM Boards testing ESEM 3A, ESEM 3B
ESEM 3-A
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EM Boards testing PB2 and CAN BUS I/F
PB2 board and test setup CAN BUS I/F
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EM Boards testing DCDC Aux mezzanine

• The DCDC Aux
• Is a mezzanine on all ESEM 3A, ESEM 3B and PB2
  boards
• Supplies internal power to each main board
• Can be tested independently from the main boards

PB2 test setup with DCDC Aux mezzanine board
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EM Boards testing ESEM 1A

• Test completed
• Mezzanine, transformer and flying components that
  have been trimmed need final mounting and then
  the board can be closed

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Box Mechanics under production
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Input Stage
Telemetry section EMI section
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Harness design
Area for cables between connectors and DB
Input stage Side A
Input stage Side B
Distribution Board (DB)
Area for ESEM boards Side A Side
B
Area for cables between motherboard and DB
Cable connecting the two motherboards together
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Collaborators at CGSETH, NSPO, NCKU
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ETH _at_

• September 1st Ms. Kyung Sook Kim, assistant of
  Prof. Viertel, joined CGS for two months

• ONGOING ACTIVITIES
• Prepare preliminary test procedure at unit level
• Support to EGSE preparation for board testing

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NSPO _at_

• September 29th two engineers from Mechanical
  Engineering section (Head J.-R. Tsai) and
  Electrical Engineering Section (Head S. Tsai),
  Mr. Jia-Jing Yeh and Mr.Hung-Yuan Chang, joined
  CGS for one month

• ONGOING ACTIVITIES
• Preparation of EGSE
• test connector for ESEM 3A
• PC adapter
• ESEM 3A board visual inspection
• Debugging of ESEM 3A (28V distributer)
  temperature sensing circuit
• ESEM 3A board testing

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NCKU _at_

• October 14th two research assistants of Prof.
  Chin E. Lin, NCKU, Mr. Suei Moo Lin and Mr.
  Chih-Chi Li joined CGS for one month

• TASKS
• Update EM drawings to FM standard for FM
  mechanics production
• Support to board testing and organize FM
  components procurement

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EM Planning
Successful Design Review held in May at CGS
Support from NCKU/NSPO and ETH in
September-October at CGS for test activities
Preliminary CAN tests
EM delivery for FIT at KSC
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Planning with FM delivery March 2006
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