2 nd POCPA Workshop CERN, June 2010 magnet power converters for a IV Generation Light Source Roberto Visintini Denis Molaro Sincrotrone Trieste

R. Visintini D. Molaro - Sincrotrone Trieste 2 nd POCPA – June FERMI Structure Photocathode Gun &LINAC Undulators (FEL) & Experimental Hall ~365 m Above Ground Under Ground (-5 m) ~195 m ~170 m

R. Visintini D. Molaro - Sincrotrone Trieste 2 nd POCPA – June LINAC Photoinjector generate electrons Photoinjector generate electrons Electrons are accelerated up to 1.7 GeV by 15 accelerating sections Electrons are accelerated up to 1.7 GeV by 15 accelerating sections

R. Visintini D. Molaro - Sincrotrone Trieste 2 nd POCPA – June E-BEAM TRANSPORT A diagnostic beam dump (measuring beam characteristics) A diagnostic beam dump (measuring beam characteristics) Spreader section to send electrons either to FEL1 or FEL2 Spreader section to send electrons either to FEL1 or FEL2

R. Visintini D. Molaro - Sincrotrone Trieste 2 nd POCPA – June UNDULATOR HALL 9 undulators for FEL1 (Wavelength= 100 – 20 nm) 9 undulators for FEL1 (Wavelength= 100 – 20 nm) 13 undulators for FEL2 (Wavelength= 20 – 30 nm) 13 undulators for FEL2 (Wavelength= 20 – 30 nm) Main beam dump Main beam dump

R. Visintini D. Molaro - Sincrotrone Trieste 2 nd POCPA – June POWER SUPPLIES REQUIREMENTS Power Supplies Status (June 2010) Type/model# (with FEL2+)Installed A A Argantix XDS Argantix XDS Danfysik V/500A2 Danfysik Delta SM 52-AR-6011 Delta SM15/10055 Delta SM15/40044 Lambda Gen Lambda Gen Lambda Gen Lambda Gen EEI 55/75021 TransTechnik 25/7502 TOTAL Installed = placed in the rack Percentage vs. TOTAL38% Ready = Fully tested (mag+int'lk) Ready vs. TOTAL27%

R. Visintini D. Molaro - Sincrotrone Trieste A2605 Output Current Range: -5/+5 ADC Output Current Range: -5/+5 ADC Output Voltage Range: -15/+15 VDC Output Voltage Range: -15/+15 VDC Output Current Resolution: 16 bit Output Current Resolution: 16 bit Accuracy: 30 ppm/FS Accuracy: 30 ppm/FS Long Term Stability: 50 ppm/FS Long Term Stability: 50 ppm/FS Max Ripple: 30 ppm/FS Max Ripple: 30 ppm/FS 2 nd POCPA – June 2010 Cooling: forced air Cooling: forced air Communication: Ethernet TCP or UDP Communication: Ethernet TCP or UDP Current update rate: 100Hz Current update rate: 100Hz Bandwidth-3dB 2Ω load): 1KHz Bandwidth-3dB 2Ω load): 1KHz Digital control loop Digital control loop Efficiency DC/DC stage: 90 % Efficiency DC/DC stage: 90 %

R. Visintini D. Molaro - Sincrotrone Trieste A2620 Output Current Range: -20/+20 ADC Output Current Range: -20/+20 ADC Output Voltage Range: -22/+22 VDC Output Voltage Range: -22/+22 VDC Output Current Resolution: 16 bit Output Current Resolution: 16 bit Accuracy: 30 ppm/FS Accuracy: 30 ppm/FS Long Term Stability: 50 ppm/FS Long Term Stability: 50 ppm/FS Max Ripple: 30 ppm/FS Max Ripple: 30 ppm/FS 2 nd POCPA – June 2010 Cooling: forced air Cooling: forced air Communication: Ethernet TCP or UDP Communication: Ethernet TCP or UDP Current update rate: 100Hz Current update rate: 100Hz Bandwidth-3dB 2Ω load): 1KHz Bandwidth-3dB 2Ω load): 1KHz Digital control loop Digital control loop Efficiency DC/DC stage: 95 % Efficiency DC/DC stage: 95 %

R. Visintini D. Molaro - Sincrotrone Trieste Commercial PS TDK-Lambda and Argantix have had problems of oscillation under inductive load TDK-Lambda and Argantix have had problems of oscillation under inductive load Fast fix from the manufactures/dealers Fast fix from the manufactures/dealers Delta almost no problems Delta almost no problems 2 nd POCPA – June 2010

R. Visintini D. Molaro - Sincrotrone Trieste Time schedule 2 nd POCPA – June 2010

R. Visintini D. Molaro - Sincrotrone Trieste END Thank you 2 nd POCPA – June 2010