Tandem Photovoltaic Module Comprising a Control Circuit
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United States of America Patent
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Aug 5, 2016
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Aug 5, 2015
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Abstract
A solar-cell module comprising a tandem solar cell and a controller that substantially optimizes the power output the tandem solar cell is disclosed. The tandem solar cell includes a first solar cell having a first energy bandgap and a second solar cell having a second energy bandgap, where the first and second solar cells are arranged such that light not absorbed by the first solar cell passes through it to the second solar cell to be absorbed. The controller controls an electrical parameter, such as current or voltage, of at least one of the first and second solar cells such that the electrical parameter is equal in both cells, thereby substantially optimizing the output power of the tandem solar cell.
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