Download presentation
Presentation is loading. Please wait.
1
Leakage current test & switched HV stress test of ALICE TRD / TPC capacitors
TRD status meeting,
2
measurement principle for single capacitors
measurement of leakage current ≥ 5000 HV switch cycles to capacitor (stress test) TRD status meeting,
3
schematic of test setup
leakage current test high voltage stress test 2,0 kV Umax ≈ 2280V HV Supply 2,5 kV HV switch 5kV Imax = 11,4A 1 MΩ 220 Ω HV Supply DUT Ileak DUT 10MΩ 10nF / 5kV 12kΩ Keithley 6487 Picoampere-meter 844:1 TTL Generator 1 Hz 1 MΩ Trigger Scope TRD status meeting,
4
voltage vs. time slew rate TRD status meeting,
5
leakage current vs. time
TRD status meeting,
6
TRD capacitors leakage
TRD status meeting,
7
TPC capacitors leakage
TRD status meeting,
8
conclusion 21 capacitors tested so far
no significant degradation of performance or destruction observed more capacitors will be tested for statistic verification TRD status meeting,
9
HV HV Ileak leakage current test high voltage stress test DUT DUT
2,0 kV Umax ≈ 2080V HV Supply 2,5 kV HV-Switch 5kV 1 MΩ 220 Ω HV Supply DUT DUT Ileak 10MΩ 10MΩ 10nF / 5kV 12kΩ 10kΩ Keithley 6487 844:1 1011:1 TTL Generator 1 Hz 1 MΩ 1 MΩ Trigger Scope TRD status meeting,
Similar presentations
