:POWer Commands 28
Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide 761
:POWer:PSRR:APPLy
(see page 1610)
Command Syntax
:POWer:PSRR:APPLy
The :POWer:PSRR:APPLy command applies the power supply rejection ratio
(PSRR) analysis.
The Power Supply Rejection Ratio (PSRR) test is used to determine how well a
voltage regulator rejects ripple noise over different frequency range.
This analysis provides a signal from the oscilloscope's waveform generator that
sweeps its frequency. This signal is used to inject ripple to the DC voltage that
feeds the voltage regulator.
The AC RMS ratio of the input over the output is measured and is plotted over the
range of frequencies.
It takes some time for the frequency sweep analysis to complete. You can query bit
0 of the Standard Event Status Register (*ESR?) to find out when the analysis is
complete.
You can use the :POWer:PSRR:TRACe command to specify whether to include gain
data in the PSRR analysis results.
See Also • "*ESR (Standard Event Status Register)" on page 236
• ":POWer:PSRR" on page 760
• ":POWer:PSRR:DATA" on page 762
• ":POWer:PSRR:FREQuency:MAXimum" on page 763
• ":POWer:PSRR:FREQuency:MINimum" on page 764
• ":POWer:PSRR:FREQuency:MODE" on page 765
• ":POWer:PSRR:FREQuency:SINGle" on page 766
• ":POWer:PSRR:PPDecade" on page 767
• ":POWer:PSRR:SOURce:INPut" on page 768
• ":POWer:PSRR:SOURce:OUTPut" on page 769
• ":POWer:PSRR:TRACe" on page 770
• ":POWer:PSRR:WGEN:LOAD" on page 771
• ":POWer:PSRR:WGEN:VOLTage" on page 772
• ":POWer:PSRR:WGEN:VOLTage:PROFile" on page 773
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