Status of Tracker Power Supply - PowerPoint PPT Presentation

Title: Status of Tracker Power Supply


1
Status of Tracker Power Supply

• Mauro Menichelli
• INFN Perugia
• Geneva 21st July 2004

2
Summary

• Radiation tests
• QM1 qualification tests
• GSE for TBS and 9011A
• QM2 production and firmware testing

3
Radiation tests

• During the board design phase the main components
  have been tested for total dose, SEL, SEU and
  SEGR.
• The results of these tests have been published
  and presented to international conferences.

4
Total dose tests

• We followed ESA SSC 22900 standard
• The irradiation was performed at the ENEA
  laboratory (Rome) using a Co60 gamma source
  (Calliope)
• The test was performed on 107 part types which
  includes
• Diodes
• BJT
• MOSFETs
• Driver/Receivers
• FPGA
• DSP
• Optocouplers
• Interfaces
• Op-amps
• Comparators

5
Examples of test results
6
Single event effect

• We performed SEL/SEU test on digital devices at
  GSI Darmstadt in 3 test campaigns.
• We performed a SEGR test on 6 MOSFETs type
  INFN-LNS in Catania.
• The total number of components tested for SEE are
  77.
• The results of the test can be found under the
  following websitehttp//ams.cern.ch/AMS/Beamtest/

7
Results on SEU/SEL
8
QM1 Boards tested

• The following QM1 boards have been tested
• S9011A (controlled for DC/DC converter crate)
• S9011B (input filter for DC/DC converter crate)
• TPSFE (Linear Power Supply for Front-end
  electronics)
• TBS (Linear bias generator)
• The following tests have been performed
• TVT
• Thermo-mechanical test (Vibrations)
• EMC/EMI

9
This presentation

• For the QM1 qualification test campaign I have to
  thank to all SERMS personnel (in particular
  G.Scolieri), A.Papi and M.Bizzarri from the
  Electronics workshop at INFN Perugia and my
  collaborators E.Fiori, O.Maris and S.Blasko.
• In order to avoid a very long presentation mostly
  results on TPSFE will be presented here as an
  example.
• All cards have passed the test .
• Complete reports are available on request.

10
The climatic chamber

• Volume 2000 l
• Temperature range 70 to 180 C
• Heating speed 2 C/min
• Cooling Speed 1.5 C/min

11
The Vacuum system

• Double stage rotary and turbo-molecular pump
• Card hosted inside a vessel, vacuum better then
  0.1 mbar

12
The thermal cycle
13
Monitored quantities during the test for TPSFE

• Status of the card (every 1 or 2 hours thermal
  stabilization periods)
• Output Voltages (during 2 hours thermal
  stabilization periods)
• Temperature of the baseplate ( at least once per
  hour)
• Temperature on the card via dallas sensor (3
  times per minute)
• Temperature on regulating BJTs (every 30s)
• 2.1 S-side
• -2.1 S-side
• 2.1V K-side
• -2.1V K-side

14
Temperature in the card and in regulating BJT
15
Temperature gradients and output voltage
measurements

• Max temperature gradient inside the card 8.5 C

16
Conclusions on TVT test on TPSFE

• The card remained functional during all phases of
  operation.
• Output voltages stable within 0.04 V
• No hot spots
• Test passed

17
TVT test results for the TBS

• The card remained functional throu all phases of
  the test
• All measured voltage are in ageement within specs
  during all phases of the test.
• All temperature sensors measured homogeneous
  temperatures within /- 2 C
• Test passed

18
TVT test results for 9011A/B

• The cards remained functional throu all phases of
  the test
• Digital read/write test on S9011A where executed
  with no failure
• All temperature sensors measured homogeneous
  temperatures within /- 2 C in S9011A and /- 3
  C in S9011B
• Test passed

19
Thermo mechanical test

• Phase 1 10 thermal cycles between 85 C and 45
  on air not powered
• Phase 2 4 minute each axe random vibration test
  (3 axes)
• Phase 3 5 thermal cycles between 85 C and 45
  on air not powered

20
The vibration table and fixture
21
Cards inside the thermal chamber
22
Random vibration Spectrum
23
TPSFE on fixture (z-axe)
24
Random Vibration spectrum on TPSFE (z-axe)
25
Resonance diagram on Z-axe (first resonance at 90
Hz)
26
Conclutions on thermo mechanical test for TPSFE

• After the 3 phases of the test the board was
  still functional.

27
Conclutions on thermo mechanical test for TBS

• After the test the board was still functional.
• The first resonance around 90 Hz

28
Conclutions on thermo mechanical test for S9011A/B

• The boards where still functional after the test
• The first resonant frequency was around 150 Hz
  for the S9011B and 200 Hz for the S9011A

29
EMC/EMI tests

• Derived from MIL-STD-461
• CE101 (30Hz - 10 kHz)
• CE102 (10 kHz- 50 MHz)
• CS101 (30 Hz-150 kHz)
• RE101 (30 Hz-100 kHz)
• RE102 (10 kHz-2 GHz)
• RS101 (30 Hz-100 kHz)
• RS102 (10 kHz-1 GHz)

30
The facility and the setup
31
CE-101 spectra
32
CE-102 spectra I
33
CE-102 spectra II
34
RE-101 spectra
35
RE-102 spectra
36
Susceptibility results

• The card was stimulated according to the
  specifications CS-101 RS-101 and RS-102 and no
  failure was detected

37
Conclusions

• All cards passed all EMI/EMC tests

38
TBS GSE
39
S9011A GSE
40
Future GSE activity

• We have working GSE for
• DC-DC converters
• TPSFE
• TBS
• S9011A
• Soon we will start the construction of a GSE for
  the TPD

41
QM2 production and testing

• QM2 is under production a sample of this
  production (without FPGA mounted) has been sent
  to italy before general testing in order to debug
  firmware
• The responsable for the firmware developement is
  S.Blasko.
• We will produce a first working version to be
  debugged of the firmware for the end of July.
• We will have the QM2 version of this firmware by
  beginning of october.
• Then the QM2 production can be completed.