Transcription of DC-DC Converters Feedback and Control
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DC-DC Converters Feedback and Control
DC-DC Converters Feedback and Feedback generalities Conditions for stability Poles and zeros Phase margin and quality coefficient Undershoot and crossover frequency Compensating the converter Compensating with a TL431 Watch the optocoupler! Compensating a DCM flyback Compensating a CCM flyback Simulation and bench results Feedback generalities Conditions for stability Poles and zeros Phase margin and quality coefficient Undershoot and crossover frequency Compensating the converter Compensating with a TL431 Watch the optocoupler!
www.onsemi.com 8 1 10 100 1k 10k 100k frequency in hertz-180-90.0 0 90.0 180 2122 Conditions for Oscillations when the open-loop gain equals 1 (0 dB) – cross over point
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