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公开(公告)号：US20230318350A1
公开(公告)日：2023-10-05
申请号：US18015249
申请日：2021-05-18
Inventor： Toshiharu MOTOFUSA , Yohsuke MITANI
CPC classification number: H02J9/061 , H02J7/34 , B60L58/19 , B60L2210/10 , H02J2310/48
Abstract: A backup power supply system supplies power to one or more loads in a situation where a power supply has caused a failure. The backup power supply system includes a plurality of power storage devices and a switching unit. The plurality of power storage devices are charged by the power supply. The switching unit switches electrical connection between the plurality of power storage devices to either a first state where the plurality of power storage devices are connected to the power supply in parallel or a second state where the plurality of power storage devices are connected to each other in series. The switching unit switches the electrical connection to the first state while the plurality of power storage devices are being charged and switches the electrical connection to the second state when the power supply has caused the failure.
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公开(公告)号：US20250168985A1
公开(公告)日：2025-05-22
申请号：US18839673
申请日：2023-01-27
Inventor： Toshiharu MOTOFUSA , Shohei YAMANAKA
Abstract: A circuit board includes an electronic component and a printed wiring board to which the electronic component is mounted by soldering. The electronic component includes a pad electrode disposed at a bottom portion of a body part. The pad electrode has a leading end electrode part laterally protruding from a first side face of the body part, and an internal electrode part provided integrally with the leading end electrode part and positioned at a bottom face of the body part. The printed wiring board has, on a substrate, a first pad and a second pad provided so as to be separated from the first pad. The leading end electrode part is joined to the first pad by soldering and the internal electrode part is joined to the second pad by soldering.
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