Rösel S, Breidenstein D, Dürbaum T (2025)
Publication Type: Conference contribution
Publication year: 2025
Publisher: Institute of Electrical and Electronics Engineers Inc.
Conference Proceedings Title: 2025 Energy Conversion Congress and Expo Europe, ECCE Europe 2025 - Proceedings
Event location: Birmingham, GBR
ISBN: 9798331567521
DOI: 10.1109/ECCE-Europe62795.2025.11238887
The loop gain of a switched mode power supply provides insights into the stability and the dynamic behavior of the system. Commonly, a gain-phase analyzer measures the loop gain. This paper proposes a faster, self-synchronized multifrequency perturbation method and compares it to the single frequency method and the simulation results. In the self-synchronized method, a microcontroller detects the rising edge of the PWM-signal and injects a new perturbation bit into the loop in each switching period. The proposed method shows very good agreement at the crossover frequency, while a deviation is present around the resonance frequency due to aliasing effects in the sine sweep method.
APA:
Rösel, S., Breidenstein, D., & Dürbaum, T. (2025). Self-Synchronized Multifrequency Measurement of Loop Gain Under Consideration of Aliasing Effects. In 2025 Energy Conversion Congress and Expo Europe, ECCE Europe 2025 - Proceedings. Birmingham, GBR: Institute of Electrical and Electronics Engineers Inc..
MLA:
Rösel, Sophia, Daniel Breidenstein, and Thomas Dürbaum. "Self-Synchronized Multifrequency Measurement of Loop Gain Under Consideration of Aliasing Effects." Proceedings of the 2025 Energy Conversion Congress and Expo Europe, ECCE Europe 2025, Birmingham, GBR Institute of Electrical and Electronics Engineers Inc., 2025.
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