公开(公告)号：US20170214876A1

公开(公告)日：2017-07-27

申请号：US15393635

申请日：2016-12-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Haruki KATAGIRI

IPC: H04N5/378 ,  H01L27/12 ,  H04N5/374 ,  H02M7/04 ,  G06K19/077 ,  H01L27/092 ,  H01L29/786

CPC classification number: H04N5/378 ,  G06K19/07701 ,  H01L21/8221 ,  H01L27/092 ,  H01L27/1207 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/78648 ,  H01L29/7869 ,  H02M7/04 ,  H04N5/374

Abstract: A semiconductor device that can extend the range of adaptable sampling rate when performing analog/digital conversion is provided. The semiconductor device includes a plurality of sample-and-hold circuits storing an analog signal and a plurality of converter circuits having a function of converting the analog signal stored in the sample-and-hold circuit into a digital signal. The sample-and-hold circuit includes a switch and a capacitor that is supplied with an analog signal through the switch. The switch includes an oxide semiconductor in a channel formation region.

公开(公告)号：US20250065776A1

公开(公告)日：2025-02-27

申请号：US18551561

申请日：2022-03-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeshi OSADA ,  Noboru INOUE ,  Haruki KATAGIRI ,  Yosuke TSUKAMOTO ,  Mayumi MIKAMI ,  Kazuki TANEMURA ,  Kousuke SASAKI

IPC: B60L58/22 ,  B60L50/60 ,  B60L58/12 ,  G07C5/00 ,  H01M10/42 ,  H01M50/209 ,  H01M50/211 ,  H01M50/213 ,  H02J7/00

Abstract: A system is provided with which data on the internal state of a storage battery such as SOC-OCV characteristics and FCC can be obtained with high accuracy and highly accurate estimation is possible even in the case of repeating charging and discharging for a long period. The storage battery management system includes a vehicle that includes a unit enabling data transmission and reception; the vehicle includes a storage battery, a balancing circuit electrically connected to the storage battery, and a vehicle control unit having a function of controlling the balancing circuit; the storage battery includes an assembled battery including a plurality of battery cells; the vehicle control unit has a function of selecting an estimated value that most closely shows a state of each of the battery cells included in the assembled battery; and the balancing circuit has a function of being controlled in accordance with the selected estimated value.

公开(公告)号：US20210274664A1

公开(公告)日：2021-09-02

申请号：US17321632

申请日：2021-05-17

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masaaki HIROKI ,  Haruki KATAGIRI ,  Shinya OKANO

IPC: H05K5/00 ,  G04G17/04 ,  G04G17/08 ,  H05K7/02

Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion.

公开(公告)号：US20200076223A1

公开(公告)日：2020-03-05

申请号：US16610931

申请日：2018-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kazutaka KURIKI ,  Ryota TAJIMA ,  Hideaki SHISHIDO ,  Yusuke YOSHITANI ,  Haruki KATAGIRI ,  Yohei MOMMA

IPC: H02J7/04 ,  H02J7/02 ,  H02J7/00 ,  H02J50/20 ,  H02J50/80 ,  B60L53/12 ,  B60L50/60 ,  B60L53/62 ,  G05B13/02 ,  H01M10/46 ,  H01M10/44

Abstract: A charging control device using machine learning is provided. A high-security charging control device is provided. A charging control system with little deterioration is provided. A storage battery having excellent characteristics is provided.An approximate charging end time is calculated. A result obtained when it is different from the estimated charging end time is fed back and learned, and accordingly the charging end can be precisely estimated after the next time. That is, the portable information terminal makes a charging plan with the use of artificial intelligence and the secondary battery is charged based on information about the charging plan. The charging plan is made to reduce the retention time of the full charging (SOC 100%) and charging is executed. Charging history information is stored in the portable information terminal and made use of to make the next charging plan.