Tracker Thermal Cooling System Electronics Status Report

1
Tracker Thermal Cooling System Electronics Status
Report

• Mauro Menichelli
• 2nd March 2005

2
Summary

• Status of the system
• Board Counting
• DC-DC converters and filters

3
The TTCE crate
TTEI
TTEI
TTPT
TTEC
TTEC
TTPV
TTPV
4
Current Block Diagram
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Prototype development I

• The Development of TTCE Prototype
• Based on the Technical Review Meeting 1-3 Sep
  04, SYSU has started the design and
  implementation of TTCE prototype
• The expected roadmap for TTCE prototype
  development are simplified prototype V1/V2 and
  prototype itself
• The simplified prototype for TTCE, which has the
  same structure as EM but has a greatly reduced
  I/O channels, is designed and implemented for
  quick evaluation of the functions and design
  concept for TTCS Electronics

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Prototype development II

• The TTCE prototype has the same structure and
  I/O channels as EM, except the LLC FPGA
  implemented with re-configurable APA150
• Both the simplified prototype and prototype
  itself are implemented with commercial and
  re- configurable components, such as 89S52(MCU)
  and APA150(FPGA)
• The simplified prototype V1 consists of MCU
  board, FPGA board, A/D board and TTEI board
• The development of the simplified prototype V1,
  including the schematic circuit, PCB and
  components assembly, is finished and tested OK

7
The block diagram for simplified prototype V1
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Simplified prototype V1 -- MCU Board
Simplified prototype V1 -- FPGA Board
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Simplified prototype V1 A/D Board
Simplified prototype V1 -- TTEI Board
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The development of TTCE simplified prototype V2

• The TTCE simplified prototype V2 includes a TTEC
  board and TTEI board. The TTEC board V2 is an
  integrated version of TTEC V1 (MCU, FPGA and A/D
  chain)
• To compare the performance of communication
  modes between MCU and LLC FPGA, both the DPRAM
  and FPGA parallel connection are designed in
  current TTEC V2. The DPRAM will be removed in
  the upcoming version of TTEC prototype
• Schematic Circuit and PCB design of TTEC
• simplified prototype V2 is finished and test
  on
• going

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Simplified prototype V2 TTEC Board
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TTCE on-board Software/FPGA Firmware Development

• The on-board software/FPGA firmware specification
  based on the TTCS scenario development is ongoing
• The set-up of simulation platform for LLC control
  ongoing
• The design and implementation of some of the key
  modules, which includes the CAN communication,
  Dallas interface, P /PI algorithm, A/D interface
  and majority voting algorithm, are finished

13
The Development of TTPD/TTPV and TTEI

• Update TTCE system architecture including TTPD
  and TTEI according to the memorandum TTCS
  Electronics Meeting 13-16 November, is proposed
  and discussed by SYSU, NLR,INFN,AMS
• Updated parameters such as L ,C and switching
  frequency are determined through test in SYSU
• The performance of the updated TTEI board is
  satisfactory

14
TTEI Design
input filter
TTEI-A (BUCK dc/dc converters)
Heaters, Peltier Elements
28V
PDS
TTEC-A FPGA-PWM-GENERATOR
CAN
Opto-Couplers
JMDC
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Board counting
 
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Filters and DC/DC converters

• 2 options for the filters
• Delta DVMN28
• Picor (Vicor) QPI-2L
• MDI 6680-T15 still a good option but....
• PDT would like to use a separate DC/DC converter
  for the pumps and they rise the issue of
  space/military grade.
• In this case we do not need the 15V polarity.
  But no dual 5V and 15V available...