C8.4 - Dual-DC/DC Strategy for Enhanced Efficiency in Solar Powered Energy Harvesting
- Event
- AMA Conferences 2013
2013-05-14 - 2013-05-16
Nürnberg - Band
- Proceedings SENSOR 2013
- Chapter
- C8 - Energy Harvesting
- Author(s)
- C. Viehweger, T. Pfeifer, T. Keutel, O. Kanoun - Technische Universität Chemnitz (Germany)
- Pages
- 486 - 488
- DOI
- 10.5162/sensor2013/C8.4
- ISBN
- 978-3-9813484-3-9
- Price
- free
Abstract
Powering autonomous sensor systems with ambient energy sources, called energy harvesting, has become an interesting field of research the last years. Solar based solutions belong to the most developed so far. In electronic systems the voltage of the solar cell must be regulated to match the supplied device, typically 3.3 V or 5 V. It is also necessary to buffer energy to handle peaks in the current demand. These tasks can be fulfilled by different DC/DC converters, which normally have either a low startup voltage or a high efficiency. The work presented here describes the use of two complementary converters which make use of both characteristics to reach a low power operation also in difficult situations.