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Table 6 Comparison of stability analysis in analog domain of BBC in buck mode of operation

From: Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

SystemPM (degrees)GM (db)ωg (rad/s)ωp (rad/s)Delay margin (s)Stability state
Open loop (withoutpid)InfInfInfInfInfStable with poor dynamic response
PID control (analog_Cloop)1294.8163303540.00636Stable with good dynamic response
PIDN control (analog_CloopN)12240.857403600.0059Better stable with good dynamic response