Power Supply Tot ~5320 WWiener proposal - CAEN proposal ??

• 5V: AUX expected need ~75 W→ 15 A/AUX →15 A*16 = 240 A + some spare current for VME → requested 260-270 A- ~ 1350 W; Wiener proposal: 3 modules 115 A each for a total of 345 A

• 14 V: AMchip core; goal~128 W→9.2 A/AMB→9.2 A *16 = 147 A-2048W Wiener proposal: 4 modules @15 V 550 W each for a total of 2200 W

@14 V 184 A 2200 W

• 48 V: for SerDes and fanouts: ~120 W→2,5 A/AMB →2,5 A *16 = 40 A 1920 W

• Wiener proposal: 3 modules 13.5 A each for a total of 40.5 A

COOLING TESTS IN PAVIA

~ 4500 W

40-60o

2 Unit fan: air mixed before crateBut 1 unit distance between wheel and crate

40-60o

1 Unit fan: attached to crate bottom, butNo air mixing before entering the crate!

NEXT STEPS IN PAVIA

• Turn on the chiller to cool the air

• Add extra wheels to the 1 unit fan

• Use last-version of Wiener fans to see if improved power gives better results

• Close the Wiener fans on the side.

• Turn on two old AMBoards (or 3) and see if they work correctly

• Last: try the final boards and final chip in the crate

However work done up to now let us think that 5 kW could be cooled.

RACK OPTIONS

52515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321

Rack Y.06-09.A2

HEAT EXCHANGER

9U VME bin (AM PU)

Fan tray

Closing panel

Air deflector

TURBINE

HEAT EXCHANGER

External PS unit

HEAT EXCHANGER

9U VME bin (AM PU)

Fan tray

Closing panelHEAT EXCHANGER

External PS unit

AGOSTINO’SSTANDARD –

Wiener PS and FAN

52515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321 Air deflector

Closing panel

External PS unit

HEAT EXCHANGER

HEAT EXCHANGER

9U VME bin (AM PU)

Fan tray

TURBINE

HEAT EXCHANGER

9U VME bin (AM PU)

Fan tray

CAEN IDEA1 single PSFor 2 crates

In the middle

52515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321 Air deflector

HEAT EXCHANGER

9U VME bin (AM PU)

Fan trayHEAT EXCHANGER

9U VME bin (AM PU)

HEAT EXCHANGER

9U VME bin (AM PU)

External PS unit

Fan tray

Fan trayHEAT EXCHANGER

TURBINE

CAENHow to fit 3

crates Too long cables?PS in the middle?

52515049484746454443424140393837363534333231302928272625242322212019181716151413121110987654321

Fan tray

External PS unit

HEAT EXCHANGER

9U VME bin (AM PU)

HEAT EXCHANGER

9U VME bin (AM PU)

Fan tray

Air deflector

HEAT EXCHANGER

9U VME bin (AM PU)

Fan trayHEAT EXCHANGER

TURBINE

Green ~cable lengthassuming Bins have Connection tools on top& PS output on top & bottom

UNCERTAINTIES on made IPOTHESIS1. Will AMCHIP core consumption be < 1 W /64 kpatterns ??

2. Will AUX board consumption be ~ 75 W ??

3. Which fan we will choose? 2 Unit fan or 1 Unit fan ??

4. Which power supplies we will use? A. Wiener 6 Units PS, one per crateB. CAEN 9-10 Units PS, one for 2 crates.

On 3 and 4 will influence the cost

Proposal: lets use what we have for 2015 as much as possible, let’s buy new stuff when uncertainties above are clarified.RACK will be defined at that moment.