Operating point control circuit device for series-connected photovoltaic cells or other electric sources

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United States of America Patent

PATENT NO 9602049
SERIAL NO

15139453

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Abstract

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In a circuit device controlling an operating point of each of two or more series-connected photovoltaic cells or other power supply cells in a module, the output voltage of the module can be boosted without reducing the generated electric power. The operating point control circuit device includes capacitors connected in parallel to the respective series-connected cells, switching elements connected in parallel to the respective series-connected cells through an inductor, an additional capacitor connected in series to the capacitor row, and an additional switching element connected in series to the switching element row. The switching elements are controlled to shut off electrical conduction between the corresponding terminals connected thereto in the same predetermined cycle and in mutually different periods so as to always establish a condition that one switching element is in the non-conductive state and the others are is in the conductive state.

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Patent Owner(s)

Patent OwnerAddress
TOKYO METROPOLITAN PUBLIC UNIVERSITY CORPORATION2-8-1 NISHISHINJUKU SHINJUKU KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimizu, Toshihisa Fuchu, JP 14 77
Urabe, Shinichi Shizuoka-ken, JP 9 29

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