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The AC analysis is used to evaluate the stability of regulation loops of switched-mode power supplies, as well as the stability of networks of power supplies. Stability criteria like phase and gain margins, or the Middlebrook impedance criterion, can be applied to the Bode plots produced by the AC analysis. But it is very tricky to extract the amplitude and phase information of frequency response of DC/DC converter without average model approximation due to the absence of a fixed operating point about which the circuit equations can be linearized. 

In this webinar we will discuss frequency domain AC analysis that generates phase and gain information with industry leading speed and accuracy for switching DC-to-DC converter as is, with minimum simulator calibration and without average model approximation.