SEPIA

SEPIA (Stability Evaluation for Power Integrity Analysis) is a Picotest-pioneered method for assessing power-supply stability directly from a time-domain step-load response — extracting phase margin and damping characteristics without breaking the control loop. Explore articles, application notes, and measurement techniques for applying SEPIA to modern power distribution networks.


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  • Tektronix Just Built Picotest’s SEPIA Method Into Its Oscilloscopes — Here’s Why That Matters

    When one of the largest names in test and measurement builds your methodology into its flagship instruments, it says something about where the industry is heading.…

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  • Modern Stability Analysis with SEPIA — No Bode Plot Required

    For decades, power system stability has been measured in the frequency domain: inject a signal, sweep across frequency, and read phase margin off a…

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  • Loop Analysis Directly from Time-Domain Waveform with SEPIA

    Published in Signal Integrity Journal, written by Masashi Nogawa. Engineers can use a variety of methods to analyze the behavior of a voltage regulator…

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  • RF Signal Integrity to Power Integrity 

    Here is the complete collection of Marashi Nogawa’s series focusing on RF Signal Integrity to Power Integrity. Each article provides you with an investigation…

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