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  4. Photovoltaic Cells with Increased Voltage Output for Optical Power Supply of Sensor Electronics
 
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2015
Conference Paper
Title

Photovoltaic Cells with Increased Voltage Output for Optical Power Supply of Sensor Electronics

Abstract
An elegant solution for the power supply of sensor electronics is the application of power-by-light technology. With this technology several challenges related to conventional copper wiring are inherently overcome; benefits are galvanic isolation, the suppression of electromagnetic interference, and the possibility to combine power and bidirectional data transmission in a single fiber link. In order to power sensor electronics efficiently, a supply voltage in the range 3 to 12 V is typically required. This paper deals with the photovoltaic laser power converter used to convert the transmitted optical power back into electricity. The advanced cell concepts of multi-junction and multi-segment cells are discussed which both aim at an increased output voltage on the device level, thereby eliminating the need for additional DC/DC conversion. Modeling and experimental results of GaAs based cells are presented, namely of single-junction 2- to 12-segment cells as well as of a dualjunction single-segment structure. A discussion of the pros and cons of the different concepts is given, focusing on the consequences of misalignment and temperature changes.
Author(s)
Helmers, Henning  
Wagner, Lukas  
Garza, C.E.
Reichmuth, Kasimir S.
Oliva, Eduard  
Philipps, Simon P.  
Lackner, David  
Bett, Andreas W.  
Mainwork
AMA Conferences 2015. Proceedings  
Conference
International Conference on Sensors and Measurement Technology (SENSOR) 2015  
International Conference on Infrared Sensors & Systems (IRS²) 2015  
DOI
10.5162/sensor2015/D1.4
Language
English
Fraunhofer-Institut für Solare Energiesysteme ISE  
Keyword(s)
  • Material

  • Solarzelle

  • Technologie

  • III-V-Photovoltaik

  • Konzentrator-Photovoltaik

  • Power-by-Light

  • cell

  • multi-junction

  • multi-segment

  • misalignment

  • temperatur

  • votlage

  • power light

  • Materialien - Solarzellen und Technologie

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