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SDS2000X HD Series Digital Oscilloscope User Manual
2 3 0 i n t . s i g l e n t . c o m
27 Power Analysis
Overview
The SDS2000X HD supports a power analysis function. Power analysis can help users quickly and
easily analyze and debug switching power supply design. It automatically calculates Power Quality,
Current Harmonics, Inrush Current, Switching Loss, Slew Rate, Modulation, Turn On/Turn Off,
Transient Response, PSRR, Power Efficiency, Output Ripple, etc. Full use of the Power analysis
requires a differential voltage probe like the SIGLENT DPB series, a current probe like the SIGLENT
CP series, the SIGLENT DF2001A deskew fixture, and the power analysis activation license (part
number SDS2000HD-PA). Install the software option part number SDS2000HD-PA to permanently
enable the power analysis function.
Touch Analysis > Power Analysis to recall power analysis dialog box:
A. Enable/Disable the test
B. Select the analysis item (Power Quality,
Current Harmonics, Inrush Current, Switching
Loss, Slew Rate, Modulation, Turn On/Turn
Off, Transient Response, PSRR, Power
Efficiency, Output Ripple, etc.)
C. Turn on/off the state of the analysis item
Power Quality
The specific measurement parameters of power quality analysis include active power, apparent power,
reactive power, power factor, power phase angle, voltage effective value, current effective value,
voltage crest factor, and current crest factor of power input of a switching power supply.
Type
Power— Includes all the items to describe energy flow in a system: Active power, reactive power,
apparent power, power factor, and power phase angle.
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