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公开(公告)号：US10536014B2
公开(公告)日：2020-01-14
申请号：US15165927
申请日：2016-05-26
Applicant: FDK CORPORATION
Inventor： Kunihisa Sekiguchi , Yasunari Mizoguchi , Hirohito Teraoka , Hiroshi Suzuki , Katsuki Tsuchiya , Kevin Foster , Jinfeng Jia
Abstract: A charger includes: a charging circuit which receives an electric power from external equipment and charges a secondary battery; a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment; and a display device that displays the power supply capability of the external equipment, which has been determined by the control device.
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Patent Agency Ranking
公开(公告)号：US10027138B2
公开(公告)日：2018-07-17
申请号：US15078710
申请日：2016-03-23
Applicant: FDK CORPORATION
Inventor： Yasunari Mizoguchi , Hirohito Teraoka , Kunihisa Sekiguchi , Katsuki Tsuchiya , Kevin Foster
IPC: H02J7/00
Abstract: A charger of the present invention includes a charging circuit that allows a secondary battery to be charged, a state-of-charge detection circuit that detects a state of charge of the secondary battery, a pictogram display unit that displays the state of charge of the secondary battery, and a control device that controls the charging circuit and the pictogram display unit on the basis of the state of charge of the secondary battery. The control device determines a kind of electronic apparatus available by the secondary battery in accordance with the state of charge of the secondary battery, and then displays the kind of electronic apparatus available on the pictogram display unit.
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公开(公告)号：US11387660B2
公开(公告)日：2022-07-12
申请号：US17045906
申请日：2019-04-10
Applicant: FDK CORPORATION
Inventor： Takashi Kanou , Kenji Kitamura , Yasunari Mizoguchi , Kunihisa Sekiguchi
IPC: H02J7/00 , G01R31/389 , G01R31/396 , H01M10/44
Abstract: A sorting mechanism includes a flap that selects a first path connecting from a battery outlet of a charging section to a battery inlet of a first compartment section as a path to introduce a first battery to the first compartment section in a case of housing the first battery in the first compartment section, and that selects a second path connecting from the battery outlet of the charging section to a battery inlet of a second compartment section as a path to introduce a second battery to the second compartment section in a case of housing the second battery in the second compartment section.
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公开(公告)号：US11228186B2
公开(公告)日：2022-01-18
申请号：US16982037
申请日：2019-04-10
Applicant: FDK CORPORATION
Inventor： Takashi Kanou , Kenji Kitamura , Yasunari Mizoguchi
Abstract: A charger includes: a power supply device for charging a secondary battery; a power supply path that includes a first switch and a second switch, and supplies electric power from the power supply device to the secondary battery; a discharge circuit that includes a first resistor and a third switch, has one end connected to a connection point between the first switch and the second switch, and has the other end connected to a ground line; a short-circuit preventing circuit that includes a second resistor and a fourth switch, and is connected in parallel to the first switch; and a control device that controls open-close of each switch and acquires a voltage value VP, wherein the control device detects a failure of each switch on a condition where the voltage value VP is different between a normal state and a failure state, in a combination of open-close control for each switch.
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公开(公告)号：US10951048B2
公开(公告)日：2021-03-16
申请号：US16073316
申请日：2017-01-27
Applicant: FDK CORPORATION
Inventor： Yasunari Mizoguchi , Kazuta Takeno , Kunihisa Sekiguchi , Kenji Kitamura , Takashi Kano
Abstract: A charging circuit includes a first power source circuit that supplies charging power to secondary batteries; a switch that controls the supply of the power; and a control device that performs switching control of the switch. The control device detects a voltage difference between the secondary batteries before starting charging; starts a timer and starts serial charging of the secondary batteries; on the condition that the voltage difference before the charging has been equal to or larger than a first threshold, if respective voltage values of the secondary batteries have both become equal to or larger than a second threshold before the timer expires, shortens a remaining time on the timer at that time point; and finishes the serial charging of the secondary batteries at the earlier of a time point when the secondary batteries have both become fully charged, or a time point when the timer has expired.
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公开(公告)号：US20210028633A1
公开(公告)日：2021-01-28
申请号：US16982037
申请日：2019-04-10
Applicant: FDK CORPORATION
Inventor： Takashi Kanou , Kenji Kitamura , Yasunari Mizoguchi
Abstract: A charger includes: a power supply device for charging a secondary battery; a power supply path that includes a first switch and a second switch, and supplies electric power from the power supply device to the secondary battery; a discharge circuit that includes a first resistor and a third switch, has one end connected to a connection point between the first switch and the second switch, and has the other end connected to a ground line; a short-circuit preventing circuit that includes a second resistor and a fourth switch, and is connected in parallel to the first switch; and a control device that controls open-close of each switch and acquires a voltage value VP, wherein the control device detects a failure of each switch on a condition where the voltage value VP is different between a normal state and a failure state, in a combination of open-close control for each switch.
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