EPE Association: EPE 2025 - DS3e: Estimation, Identification and Optimisation Methods

EPE 2025 - DS3e: Estimation, Identification and Optimisation Methods
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 11: Measurement, Supervision and Control for Power Converters > EPE 2025 - DS3e: Estimation, Identification and Optimisation Methods

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   Control-to-Output Transfer Function Measurement of a Boost Converter Using Synchronized Multifrequency Excitation
By Sophia ROESEL, Daniel BREIDENSTEIN, Thomas DUERBAUM [View]
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Abstract: An optimal controller design requires knowledge about the control-to-output transfer function of the converter. Instead of a sine sweep, this paper presents a faster method by a synchronized multifrequency excitation, including the compensation of aliasing effects. The measurement results show excellent agreements with the common sine method.

   Voltage generation for Sawyer-Tower Coss loss measurement based on resonant converters
By Paul KORN, Marcus PRAAST, Thomas KOMMA [View]
[Download]

Abstract: Output capacitance losses in modern semiconductor devices become increasingly relevant with fast switching power converters. A new voltage generation approach is proposed to handle the highly variable capacitive load in a Sawyer-Tower circuit. An LLC resonant converter is applied to generate the high voltage, high frequency sinusoidal excitation voltage, overcoming limitations of HF amplifiers. An external DC voltage source is introduced to prevent reverse conduction of the device under test, ensuring accurate charge-voltage (Q-V) characterization. Measurements under this voltage excitation are presented. The calculated dissipated energy is verified by thermal measurements observing the temperature rise of the DUT, showing less than 6 \% deviation. This article presents a scalable and practical setup for power semiconductor characterization at high voltages.

EPE 2025 - DS3e: Estimation, Identification and Optimisation Methods
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 11: Measurement, Supervision and Control for Power Converters > EPE 2025 - DS3e: Estimation, Identification and Optimisation Methods
	[return to parent folder]

	Control-to-Output Transfer Function Measurement of a Boost Converter Using Synchronized Multifrequency Excitation By Sophia ROESEL, Daniel BREIDENSTEIN, Thomas DUERBAUM	[View] [Download]
Abstract: An optimal controller design requires knowledge about the control-to-output transfer function of the converter. Instead of a sine sweep, this paper presents a faster method by a synchronized multifrequency excitation, including the compensation of aliasing effects. The measurement results show excellent agreements with the common sine method.

	Voltage generation for Sawyer-Tower Coss loss measurement based on resonant converters By Paul KORN, Marcus PRAAST, Thomas KOMMA	[View] [Download]
Abstract: Output capacitance losses in modern semiconductor devices become increasingly relevant with fast switching power converters. A new voltage generation approach is proposed to handle the highly variable capacitive load in a Sawyer-Tower circuit. An LLC resonant converter is applied to generate the high voltage, high frequency sinusoidal excitation voltage, overcoming limitations of HF amplifiers. An external DC voltage source is introduced to prevent reverse conduction of the device under test, ensuring accurate charge-voltage (Q-V) characterization. Measurements under this voltage excitation are presented. The calculated dissipated energy is verified by thermal measurements observing the temperature rise of the DUT, showing less than 6 \% deviation. This article presents a scalable and practical setup for power semiconductor characterization at high voltages.