Passive vs Active Probes for Power Rail Measurements
Keysight Labs
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Discover ways in which specialty probes can help you make better power measurements than general issue passive probes. Difficulties of making power measurements include:
Finding a measurement system that has low enough noise to catch the details and true signal from your power supply
Removing the DC offset so you can see your signal centered and zoomed in tight on the oscilloscope
Finding a probe that doesn’t load the circuit and distort the measurement
Having high enough bandwidth that you can observe high frequency switching loads.
Learn how to overcome these measurement challenges. The video linked at the end will go into further detail on making power measurements and how these issues are addressed. https://www.youtube.com/watch?v=rVsenI36nRI
The digital storage oscilloscope used in this video is an Infiniium S-Series oscilloscope: http://www.keysight.com/en/pcx-x205213/infiniium-s-series-oscilloscopes?cc=US&lc=eng
The low-noise active probe used in this video is the N7020A power rail probe: http://www.keysight.com/en/pd-2471132-pn-N7020A/power-rail-probe?cc=US&lc=eng
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