UGPD TRD Gas Power Distribution Box

1
UGPDTRD Gas Power Distribution Box

• Giovanni Ambrosi, Alessandro Bartoloni, Mike
  Capell, Florian Hauler, Alexandre Koulemzine,
  Alexei Lebedev, Georg Schwering-
• IEKP - Universität Karlsruhe (TH), MIT, INFN
  Roma
• INFN Perugia, -RWTH Aachen

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Outline

• UGPD overview
• UGPD mechanics production
• UGPD electronics production
• Missing DC/DC converters
• Controller board for manifold heaters
• UGPD power specifications
• Schedule

3
UGPD overview
Heaters
Valves
120V/5V, 3,3V, 5V, 12V, 28V
Pumps
UG-Crate
Spirometer
Pressure sensors
4
UGPD mechanics production

• UGPD mechanics is physically not existing.
• Current drawings need to be modified due to
  design changes - XL I-Frames hosting m.d.i.
  DC/DC converter - Manifold heater control
  board - fixture is required which attaches the
  heater control board to the top of the I-Frames
• QM mechanics option The QM1 UPD-box mechanics
  is currently not used. It could be used to
  qualify a UGPD-Box. This implies that a few
  slots in this mechanics will remain unoccupied,
  since the UGPD has less boards
• FM mechanics To avoid costs to the
  collaboration, an FS TMPD-Box production has
  been canceled at CSIST and replaced by an FM
  UGPD-Box production.
• Schedule Earliest period to receive an FM
  UGPD manufactured by CSIST is autumn 2007.
  This depends on the priority defined by
  subdetector responibles. TBC by CSIST.

5
UGPD electronics production

• Current UGPD layout
• Production Status S9011AUGv2 PCB under
  production S9053I produced, board level ESS,
  tested S9054 produced, board level ESS,
  tested S9011B produced, board level
  ESS 12V design started by A.
  Kulemzine 28V design started by A. Kulemzine
  

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Missing converters

• Standard DC/DC converters were developed under
  contract with CAEN before 2002.
• No CAEN DC/DC-converters were foreseen with
  output voltages of 12V and 28V and with the
  required output power.
• Commercial DC/DC converters for space
  applications can be obtained from the company
  m.d.i.m.d.i 6107-S12F 12V at 1,67A, up to 81
  efficiencym.d.i. 6031-S28   28V at 2,5A, up to
  81 efficiency
• These converters will be controlled by the
  S9011AUG board, which has different requirements
  on the control and status signals.An adaption
  board with the form of a standard DC/DC converter
  will be designed which hosts the mdi converter.
• Due to the high power dissipation a special
  XL-I-Frame has to be designed which is able to
  transfer the large amount of heat to the
  radiator. (up to estim. 18 W)
• Thermal Analysis required from CGS.

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XL-I-Frame and adaption board
Possible solution of an XL-I-Frame layout, the
DC/DC converter position and the adaption board.
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UGPD fitting
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Manifold heater control board

• Since operation of flipper valves on the
  manifolds is only guaranteed at temperatures
  above 0C, 8 double-redundant heaters will be
  installed.
• The heater control can be implemented into the
  UGPD-Box using S9011AUG functionality and a new
  heater control board which will be placed on top
  of the I-Frames.
• Two connectors will be added to the UGPD
  mechanics guiding 28 V with a total power of 40 W
  to the two manifold locations.
• Since 28V power in the UGPD-Box is limited (75W)
  certain 28V consumers may not be operated during
  heating e.g. Marrotta valves.
• In case of communication loss, the heater should
  not remain turned on infinitely. It is under
  discussion to include an automatic protection in
  the firmware which switches off the heater after
  30 min.

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Manifold heater controlboard components
preliminary
Lecroy communication
Lecroy communication
S9011AUGA
S9011AUGB
1 enable, 3 data lines status feedback
optocoupler
3,3V from S9053
3,3V from S9053
decoder/encoder
8 Power Mosfets to control heaters
28V
28V
8 manifold heaters
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UGPD power specifications
ON almost all the time
High load on 28V.Not all heaters may be switched
on at the same time. Need scenarios for heaters.
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Things to clarify

• Gas system people are required for
• Please check and approve power requirements
  table.
• Provide data sheets of 12V/28V load to A.
  Koulemzine (and me).
• Work out scenario for the UGPD loads, especially
  heaters consumption on time scale.

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Responsibilities

• Mechanics F. Hauler / A. Assenza CGS
• Thermal analysis CGS
• Maniford heater control board W. Karpinski
• 12V/28V converter A. Koulemzine
• S9011AUG firmware L. Accardo
• Functional tests A. Bartoloni
• Space qualification A. Bartoloni
• Definition/approval of power requirementUG
  people Ulrich Becker, Bruno Borgia,
  Peter Fisher, etc

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Schedule

• Final Definition/Approval of power
  requirements NOW!
• Design of XL-I-Frame and adaption board for m.d.i
  converter x1 month
• Thermal Analysis of XL-I-Frame
• converter procurement m.d.i. 6 months
• Assembly and QM test 1-2 months
• QM qualification could be done using QM1 UPD-Box
• QM UGPD April 2007
• Autumn 2007 for final mechanics of UGPD produced
  at CSIST