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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

System

PM (degrees)

GM (db)

ωg (rad/s)

ωp (rad/s)

Delay margin (s)

Stability state

Open loop (withoutpid)

19.8

Inf

Inf

1700

0.000204

Stable with poor dynamic response

PID control (analog_Cloop)

114

Inf

Inf

7650

0.00026

Stable with good dynamic response

PIDN control (analog_CloopN)

82.6

Inf

Inf

9130

0.000158

Better stable with good dynamic response