This work builds on the previously validated design by implementing a current mode control strategy. The control reference is the peak inductor current, obtained from voltage mode simulation at rated power. A Type 2 compensator is designed to shape the system response, achieving the required crossover frequency range (500–700 Hz) and ensuring feedback stability with a phase margin greater than 45° and amplitude margin above 10 dB.
Simulation results confirm that current mode control cancels the inductor pole dynamics, resulting in a first-order system. The compensator tuning effectively raises loop gain and guarantees robust stability across different target crossover frequencies. AC sweep analysis and Bode plots demonstrate that the converter exhibits large stability margins and maintains correct performance.
Closing the feedback loop validates that the output voltage remains stable at the rated operating point, with negligible ripple. The proposed strategy thus ensures both dynamic response and robust stability of the flyback converter.
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