In this study, the authors propose a simple maximum power point tracking (MPPT) DC–DC converter amenable for micro-scale photovoltaic applications. The solution avoids the use of inductors and exploits a charge pump as a voltage boost element. To take into account the temperature dependence of the MPP voltage, a passive temperature compensation circuit is also included. To validate the idea a prototype was realised with commercial off-the-shelf components. A system efficiency better than 83% for output power above 90 mW is obtained. The results show the viability of the proposed approach which could be further improved through a full custom integrated-circuit design.
Micro-Scale Inductorless Maximum Power Point Tracking DC-DC Converter
PENNISI, Salvatore;GRASSO, ALFIO DARIO
2013-01-01
Abstract
In this study, the authors propose a simple maximum power point tracking (MPPT) DC–DC converter amenable for micro-scale photovoltaic applications. The solution avoids the use of inductors and exploits a charge pump as a voltage boost element. To take into account the temperature dependence of the MPP voltage, a passive temperature compensation circuit is also included. To validate the idea a prototype was realised with commercial off-the-shelf components. A system efficiency better than 83% for output power above 90 mW is obtained. The results show the viability of the proposed approach which could be further improved through a full custom integrated-circuit design.File | Dimensione | Formato | |
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