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Table 3 Comparison of stability analysis in analog domain of BBC in boost 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)19.8InfInf17000.000204Stable with poor dynamic response
PID control (analog_Cloop)114InfInf76500.00026Stable with good dynamic response
PIDN control (analog_CloopN)82.6InfInf91300.000158Better stable with good dynamic response