PhaseII discussion

Wednesday 19 Apr 2017, 15:00 → 21:00 Europe/Zurich

13/2-005 (CERN)

ITK Power Supply Meeting Minutes (Apr 19th 2017)
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- people at meeting : Steve Mcmahon, Alex Grillo , Ming-Lee, Rachid, Song-Ming

- Ming-Lee presented current status of HV PS
  - decide not to use commerical PS since ATLAS requires
    input voltage source and the output voltage source to
    have separate grounding.

  - designing a prototype : a single channel PS module
    - output voltage upto 700V, 10mA
    - aim to have module made before end of June.

- Alex :
  - HV power supply :
    - connectors to HV modules depend on the SCT HV cables that we will
      be re-using
    - HV may need to go up to 750 V (max)
    - output current ~10 mA
      - may need to go up to ~20mA depending number of channels per stave
        to power
    - need interlock per channel, or per 8 channels
    - need design review after Ming-Lee build the first proto-type and test
    - Ming-Lee is interested to design the patch panel box that connects
      the HV cables from the PS to the HV cables going into the detector.

  - LV power supply :
    - Need someone to build LV PS
    - For pixel :
      - Krakow group designing DC-to-DC converter
        - stepping down from ~48V to ~12V
      - LV PS provides a constant current source to drive ~6-8 pixel modules
        in series
        - voltage across each pixel module is about ~1.5V

- Steve :
  - like us to also participate in the cable task force
    since PS and cabling are closely related
  - would ask the pixel/strip people to provide us the power supply
    specifications

- Next ITK week (June 26)
  - Will we have proto-type and some test done already by the ITK week ?

15:00 → 15:20 Discussion

Speakers: Chih-Hsun Lin (Academia Sinica (TW)), Minglee Chu, Song-Ming Wang (Academia Sinica (TW))

HV1_19apr17.pdf