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You are here: Home / New Articles / Gallery: Interesting instruments on display at PCIM Europe

Gallery: Interesting instruments on display at PCIM Europe

May 23, 2019 By Lee Teschler Leave a Comment

Scopes optimized for measuring power supplies

Rohde & Schwarz featured a demo of its model RTA4004 scope, an rohde & schwarzinstrument particularly well suited to characterizing switch-mode power supplies thanks to a Bode analysis option. The Bode plot option uses the oscilloscope’s built-in waveform generator to create stimulus signals ranging from 10 Hz to 25 MHz. Measuring the ratio of the DUT signal input and output at each test frequency, the scope then plots gain logarithmically and phase linearly. The result is a quick determination of the gain and phase margin of switched-mode supplies or linear regulators. These measurements help determine the control loop stability. They can also gauge the power supply rejection ratio and characterize the transition of the regulator system to the regulated output.

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Filed Under: Featured, Handheld Oscilloscope, Mixed-signal Oscilloscope, New Articles, Oscilloscopes, PC-based Oscilloscopes - PCO, Test and Measurement News Tagged With: cleverscope, dewetron, picoscope, rohdeschwarz

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