High efficient digital controlled bridgeless boost PFC without direct current sensing

Daniel Miller, Ralph Kennel, Manfred Reddig, Manfred Schlenk

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Modern power supplies require a power factor correction circuit (PFC) to comply with valid standards such as IEC 6100-3-2. Additionally, key points like the construction costs, construction size, electromagnetic compatibility (EMC) and the operating efficiency are always particular significance. Therefore, the highly efficient topology of a bridgeless boost PFC converter is applied here. In this case, an efficient control strategy is required. This paper presents the process of developing a low-loss digital control method without direct current sensing. Only voltage drops across the boost inductor and the output voltage are sampled. As a basis for the control circuit evaluation a state-space average (SSA) model of the power stage was created. Combined with that, the performance of the digital current controller could be analyzed and evaluated to establish the optimal setting. Finally, a holistic simulation constitutes the operation behavior of the control method in combination with the power stage.

Original languageEnglish
Title of host publicationPCIM Europe 2015; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783800739240
StatePublished - 2015
Event2015 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2015 - Nuremberg, Germany
Duration: 19 May 201520 May 2015

Publication series

NamePCIM Europe 2015; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management; Proceedings of

Conference

Conference2015 International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2015
Country/TerritoryGermany
CityNuremberg
Period19/05/1520/05/15

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