Application specific efficiency improvement for an industrial point of load converter

Tech H, Oeder C, Kübrich D, Dürbaum T (2013)

Publication Type: Conference contribution, Conference Contribution

Publication year: 2013

Pages Range: pp

Event location: Long Beach, CA US

DOI: 10.1109/APEC.2013.6520567

Abstract

Today, many electrical applications use the DC-DC buck converter topology as point of load (POL) converter with synchronous rectifiers to provide the desired output voltage for different loads and components [1-3]. While its efficiency is usually optimized for high output powers, in case of low and mid power it is often off the optimum. Nevertheless, since many applications force these converters to operate at part load condition most of the time, the system's overall power consumption can be reduced noticeably by optimizing the efficiency at its main operating point. This paper deals with the specific efficiency improvement of an existing industrial POL converter (P o,max = 60 W) towards its main operating point at part load with Po = 15 W. In a first step, the converter is analyzed in the time-domain by means of a sampled data modeling (SDM) approach in order to simulate and predict its behavior as accurate as possible. In a second step, based on the derived converter model the POL is optimized for Po = 15 W by simulations using the SDM model. Finally, practical measurements are performed in order to verify the correctness of the identified options for improvements. © 2013 IEEE.

Authors with CRIS profile

Christian Oeder Professur für Optoelektronik Daniel Kübrich Professur für Optoelektronik Thomas Dürbaum Professur für Elektromagnetische Felder

How to cite

APA:

Tech, H., Oeder, C., Kübrich, D., & Dürbaum, T. (2013). Application specific efficiency improvement for an industrial point of load converter. In Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), March 2013 (pp. pp). Long Beach, CA, US.

MLA:

Tech, Hendrik, et al. "Application specific efficiency improvement for an industrial point of load converter." Proceedings of the IEEE Applied Power Electronics Conference and Exposition (APEC), March 2013, Long Beach, CA 2013. pp.

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