1. Jan 29 2004B.Allongue1 WIENER “MARATON” POWER SUPPLY TESTS Introduction. Magnetic field tests. Plans for radiation and electrical tests. Conclusion.

2. Jan 29 2004B.Allongue2 Introduction The “MARATON” is a modular power supply: –Input module. –Auxiliary power supplies and signals module. No  P, no control, no monitoring. –Power modules. Same topology as TCC2 tests. Water cooled

3. Jan 29 2004B.Allongue3 Introduction cont. Power double modules: 2 7 V 50A 2 * 250 W 24 48 V 6A 2 * 300 W Tests: 3 outputs 5 V / 100A 500 W 1 output 3.3 V / 200A 660 W 1 output 48 V / 12A 576 W Nominal output power : 2736 W

4. Jan 29 2004B.Allongue4 Magnetic field tests Previous tests with power modules:

5. Jan 29 2004B.Allongue5 Magnetic field tests cont. Power modules:

6. Jan 29 2004B.Allongue6 Magnetic field tests cont.

7. Jan 29 2004B.Allongue7 Magnetic field tests cont.

8. Jan 29 2004B.Allongue8 Magnetic field tests cont.

9. Jan 29 2004B.Allongue9 Magnetic field tests cont. Tests with complete power supply Power module B field Protected zone Power supply box Aux PS Power module DC PS Test set up

10. Jan 29 2004B.Allongue10 Magnetic field tests cont.

11. Jan 29 2004B.Allongue11 Magnetic field tests cont. Tests only in Y direction

12. Jan 29 2004B.Allongue12 Magnetic field tests cont.

13. Jan 29 2004B.Allongue13 Magnetic field tests cont. Tests procedure: –Test each output at nominal load individually. –Tests the complete system at nominal load.

14. Jan 29 2004B.Allongue14 Magnetic field tests cont.

15. Jan 29 2004B.Allongue15 Magnetic field tests cont.

16. Jan 29 2004B.Allongue16 Magnetic field tests cont.

17. Jan 29 2004B.Allongue17 Magnetic field tests cont. Ripple

18. Jan 29 2004B.Allongue18 Magnetic field tests cont.

19. Jan 29 2004B.Allongue19 Magnetic field tests cont. Standard Power supply PL500: 2V / 200A 2V / 100A 2V / 200A

20. Jan 29 2004B.Allongue20 Magnetic field tests cont. Power module fans: –PAPST 614MN This fan is used to cool the single power modules type MEH

21. Jan 29 2004B.Allongue21 Magnetic field tests cont. NMB 1606 KL –This fan is used to cool the double power modules type MDL.

22. Jan 29 2004B.Allongue22 Magnetic field tests cont.

23. Jan 29 2004B.Allongue23 Radiation and electrical tests MOSFET Radiation tests: –Use of PFC implies bigger Vds: –Need to change the switching transistors. –Candidates tested in Irrad-1 facility at CERN. –Wiener is implementing the devices. –Tests campaign is foreseen 4 – 5 March 2004.

24. Jan 29 2004B.Allongue24 Radiation and electrical tests cont. Tests set up for irradiation:

25. Jan 29 2004B.Allongue25 Radiation and electrical tests cont. Electrical tests: Power module Control and Monitoring Hostile zone Radiation + B field Protected zone Power supply box Aux PS Power module PFC

26. Jan 29 2004B.Allongue26 Radiation and electrical tests cont. AC/DC conversion box and monitoring box is expected end of February. Proceed to tests: –Noise –Length –…

27. Jan 29 2004B.Allongue27 Conclusion Magnetic test was performed in only one direction; additional tests should be done. Perform complete tests on the complete system. Get a functional system in spring 2004.

28. Jan 29 2004B.Allongue28 Acknoledgements Chris Parkman PH / ESS Paul Maley PH / ESS Luiciano Periale PH / ESS Felix Bergsma PH / TA3