Battery protection circuit, power storage device, and electric device

    公开(公告)号:US11923707B2

    公开(公告)日:2024-03-05

    申请号:US17293215

    申请日:2019-11-06

    CPC classification number: H02J7/0029 H02J7/00712

    Abstract: A battery protection circuit with a novel configuration and a power storage device including the battery protection circuit are provided. The battery protection circuit includes a switch circuit for controlling charge and discharge of a battery cell; the switch circuit includes a mechanical relay, a first transistor, and a second transistor; the switch circuit has a function of controlling electrical connection between a first terminal and a second terminal; the mechanical relay has a function of breaking electrical connection between the first terminal and the second terminal; the first transistor has a function of supplying first current between the first terminal and the second terminal; the second transistor has a function of supplying second current between the first terminal and the second terminal; and the first current is higher than the second current.

    Semiconductor device
    7.
    发明授权

    公开(公告)号:US12205892B2

    公开(公告)日:2025-01-21

    申请号:US17297863

    申请日:2019-11-20

    Abstract: A semiconductor device having a novel structure is provided. The semiconductor device includes a silicon substrate and a device provided above the silicon substrate. The device includes a transistor and a conductor. The transistor includes a metal oxide in a channel formation region. Conductivity is imparted to the silicon substrate. The conductor is electrically connected to each of a drain of the transistor and the silicon substrate through an opening provided in the device. Heat of the drain of the transistor can be efficiently released through the silicon substrate.

    Semiconductor device
    9.
    发明授权

    公开(公告)号:US12081171B2

    公开(公告)日:2024-09-03

    申请号:US17923653

    申请日:2021-05-07

    CPC classification number: H03D7/1458 H01L29/78648 H01L29/7869

    Abstract: A novel semiconductor device is provided. The semiconductor device includes a mixer circuit and a bias circuit. The mixer circuit includes a voltage-to-current conversion portion, a current switch portion, and a current-to-voltage conversion portion. The bias circuit includes a bias supply portion and a first transistor. The voltage-to-current conversion portion includes a second transistor and a third transistor. The bias supply portion has a function of outputting a bias voltage to be supplied to a gate of the second transistor and a gate of the third transistor. One of a source and a drain of the first transistor is electrically connected to the gate of the second transistor and the gate of the third transistor. The first transistor is turned off when the bias voltage is supplied, and the first transistor is turned on when the supply of the bias voltage is stopped.

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