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SIGLENT
SDS2000X User Manual 189
Output Ripple
The output ripple analysis measures the ripple noise of the power supply output.
1. Press the Utility button on the front panel to enter the UTILITY function menu.
2. Press the Next Page softkey to enter the second page of the UTILITY function menu.
3. Press the Power Analyze softkey to enter the ANALYSIS function menu.
4. Press the Analysis softkey, and then turn the universal knob to select Output Ripple
and press down the knob to confirm.
Figure 121: Output Ripple ANALYSIS Function Menu
5. Connect the probes to the device-under-test and to the oscilloscope as well.
a. Connect the voltage probe (passive or differential) to the DC output of the power
supply.
b. Connect the voltage probe to an oscilloscope input channel.
6. Press the Signal softkey to enter the SIGNAL menu.
Figure 122: Output Ripple SIGNAL Menu
7. Press the Voltage softkey and then turn the universal knob to select the channels.
8. Make sure the proper probe attenuation factor is set in the oscilloscope for the voltage
probe.
9. Press the Duration softkey, and then turn the universal knob to set the time duration
to capture signals. This sets the time/div of the oscilloscope.
10. Press the Auto Setup softkey to automatically set the appropriate time/div and volt/div
for the measurement.
11. Adjust the trigger level to capture waveforms at the same place in each cycle (in other
words, stabilize the waveform display).
12. Return to the ANALYSIS function menu.
13. Press the Apply softkey to perform the analysis. When the analysis has completed,
results are displayed.
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