Improved Bias Supply Scheme for a Maximum Power Point Tracking Universal Topology for Low-Voltage Electromagnetic Harvesters in Battery Powered Applications
Konferenz: PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
16.05.2017 - 18.05.2017 in Nürnberg, Deutschland
Tagungsband: PCIM Europe 2017
Seiten: 4Sprache: EnglischTyp: PDF
Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Autoren:
Shousha, Mahmoud (Würth Elektronik eiSos GmbH & Co. KG, 85748 Garching, Germany & Electrical Power & Machines Dept., Faculty of Engineering, Cairo University, 12611, Giza, Egypt)
Dinulovic, Dragan; Haug, Martin (Würth Elektronik eiSos GmbH & Co. KG, 85748 Garching, Germany)
Inhalt:
This paper presents an improved bias supply scheme for a universal topology that can be used with both ac and dc energy harvesters and provides maximum power point tracking (MPPT) at the same time. The improved bias supply scheme ensures providing a suitable bias supply voltage even if the harvester voltage is low allowing the topology to operate with very low-voltage harvesters. The principle of operation and the effect of the bias supply circuit on the operation of the topology are discussed and shown in this paper. Experimental results show the effectiveness of the supply scheme when used with as low as 10mV push-button based electromagnetic energy harvester with a minimum impact on converter operation.