Latest Developments on the Embedded Assembly System Power Supply for LHC Experiments

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Latest Developments on the Embedded Assembly
System Power Supply for LHC Experiments
Giovanni GRIECO CAEN SpAg.grieco_at_caen.it 9th
Topical Seminar on Innovative Particle and
Radiation Detectors23 - 26 May 2004   Siena,
Italy
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Summary

• Background / previous CAEN HV/LV activities
• Birth of the EASY System
• EASY specifications
• EASY modules
• EASY integration in DCS

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Background

• CAENs Power Supplies RD activities in the last
  8 years
• SY1527/2527 family
• OPC Server for the SY1527/2527
• SASY2000 for Radiation Tolerant and Magnetic
  Field solutions ? tested working devices up to
• 7 kGauss
• 11011 p/cm2 TD - 15 kRad TID
• 21012 n/cm2 TD
• Result
• existence of a series of building blocks for a
  new power supply concept

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Hostile Area Experience Milestones
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Why the EASY ?

• The LHC experiments need common solutions
• Reduce RD costs (Hardware Software)
• Reduce Hardware/Software proliferation
• Use of the same crates for all Sub-detectors
• Use of the same modules where possible
• Use of a Common Control System
• Reduce Maintenance costs
• Use of Common spare units
• CAEN proposes a catalog approach with a limited
  set of modules

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System Philosophy
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EASY3000/EASY4000
Radiation Magnetic Field
EASY 3000
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EASY Main Features

• Full integration in SY1527/SY2527 (it appears as
  a single SY1527 board)
• 48V DC input
• 21 slots per crate
• 3 kW Maximum Output Power
• Magnetic field capability 2 kGauss
• Expected rad.tol. 11011 p/cm2 TD
• 21012 n/cm2 TD
• 15 kRad TID

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EASY Modules
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A3009 - A3016

• Reversible polarity
• VMon and VSet accuracy /- (30mV 3 Vout)
• IMon and ISet accuracy /- (50mA 3 Iout)
• Ripple lt 20mVpp (10Hz-15MHz)
• VMax IMax by trimmer per ch.
• Channel alarms
• Load and Connector Over-Voltage,
• Over-Current, Over-Temperature, Over-Power
• On/off per Ch.
• LDR trimmer on the board panel
• Board enable (interlock)
• 48V Service local remote on/off
• DB50 connectors

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A3025 A3050 A3100

• Reversible polarity
• VMon and VSet accuracy /- (30mV 3 Vout)
• IMon and ISet accuracy /- (50mA 3 Iout)
• Ripple lt 20mVpp (10Hz-15MHz)
• VMax IMax by trimmer per ch.
• Channel alarms
• Load and Connector Over-Voltage,
• Over-Current, Over-Temperature, Over-Power
• On/off per Ch.
• LDR trimmer on the board panel
• Board enable (interlock)
• 48V Service local remote on/off
• Hex head bolt connector (A3050, A3100)

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A3507 - A3540 A3512

• Polararized Floating Channels
• VMon and VSet accuracy (A3540 A3512) /- (2V
  0.1 Iout) (A3506) /- (1V 0.1 Iout)
• IMon and ISet accuracy (A3540 A3512) /- (2uA
  1 Iout) (A3507) /- (5uA 1 Iout)
• Ripple (A3540 A3507) lt 20 mV
  (10Hz-15MHz) (A3512) lt 100 mV (10Hz-15MHz)
• VMax IMax by trimmer per board
• Channel alarms Over-Voltage,Over-Current,
  Over-Temperature
• On/off per Ch. Board enable (interlock)
• 48V Service local remote on/off
• SHV or CPE(A3512) HV connectors

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First EASY module A4601H/F

• Developed for CMS Tracker
• Can be used in hostile areaor in counting room
• Currently under test in CAEN

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EASY Integration

• Controlled by SY1527/SY2527 power supplies

• Full integration with the software developed for
  SY1527/SY2527
• OPC Server
• Wrapper libraries (Linux/Win32)

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CAEN OPC Server Milestones
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EASY Architecture
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EASY Channels Representation
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A1676 Branch Controller

• Single slot on SY1527/SY2527 systems
• 16 boards per SY1527
• 6 boards per SY2527
• Up to 6 independent EASYs
• CANBus based bus protocol
• Up to 720 indipendent ch. per branch
• Up to 11.520 indipendent ch. per system

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EASY Module Features

• Local microcontroller
• Firmware remotely upgradable
• Hardware Imax
• Per low voltage channel
• Independent ON/OFF
• Vmon (Connector and Load)
• Imon
• Vset (Software or Hardware)
• Programmable Trip
• Sense wires
• Status Signals

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SY1527 / SY2527 (front view)

• Modular and Expandable
• Flexible HV, LV branch controller boards
• Reliable
• Remote Firmware upgrading Maintenance

SY1527
SY2527
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SY1527 / SY2527 (rear view)
SY1527
Branch Controller
SY2527
Branch Controller
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SY1527/SY2527 Connectivity
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Conclusions

• CAEN has completed all developments in Magnetic
  Field and Radiation
• Integration in DCS (OPC Server SY1527) is well
  established and already in use
• The architectures of the EASY System and modules
  are completely defined