Semiconductor device, power storage device, and electronic device

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United States of America Patent

PATENT NO 11714138
SERIAL NO

17294780

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A semiconductor device that tests and/or monitors each of batteries provided in an assembled battery is provided. The semiconductor device includes a hysteresis comparator and a circuit, and the circuit has a function of setting a high-level side threshold voltage and a low-level side voltage of the hysteresis comparator. The circuit includes first and second capacitors. A first terminal of the first capacitor is electrically connected to a high-level side reference potential input terminal of the hysteresis comparator and a first terminal of the second capacitor is electrically connected to a low-level side reference potential input terminal of the hysteresis comparator. After a first reference potential is input to the high-level side reference potential input terminal and a second reference potential is input to the low-level side reference potential input terminal, a negative electrode of a cell is electrically connected to each second terminal of the first and second capacitors, whereby the potential of each first terminal of the first and second capacitors is changed.

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Patent Owner(s)

  • SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishizu, Takahiko Kanagawa, JP 73 668
Ito, Minato Kanagawa, JP 16 223
Okamoto, Yuki Kanagawa, JP 147 723
Takahashi, Kei Kanagawa, JP 391 3307

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