The paper describes a method for automated small-signal frequency response analysis based on transient responseobtained using a generalpurpose simulation tool such as Spice.The method is based on using the simulation toolto evaluate the converter impulse response.The main advantage of the proposed method as a design verification tool isthat frequency responses can be generated efficiently for any converter configuration and any model complexity supportedby the general-purpose simulator, Application examples are included to demonstrate very good correlation betweenthe generated responses and experimental data, and to compare the results with predictions of approximate analyticalmethods.
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