Siemens POLYMOBIL Plus - Capacitor Charging Current Measurement

Measurements 5 - 3
Siemens AG SPR8-125.061.02 Page 3 of 20 POLYMOBIL Plus
Medical Engineering Rev. 01 01.00 TD SD 24
Capacitor charging current 5
• Connect the oscilloscope to D 950 at TP "IC" and "GND".
• After switch on the following oscillogram can be measured:
The charging current is dependent on the line voltage present and the charge sta-
tus(capacitor voltage U
c
) of the capacitor bank.
Fig. 3 shows the charging current in standby
, i. e. when the C-bank is charged.
CH1 TP "IC" 500 mV/Div
Ground at "GND"
20 µs/Div
Fig. 3