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    DOOR LATCH POWER SUPPLY DEVICE, DOOR LATCH POWER SUPPLY SYSTEM, AND VEHICLE USING SAME
    2.
    发明公开
    DOOR LATCH POWER SUPPLY DEVICE, DOOR LATCH POWER SUPPLY SYSTEM, AND VEHICLE USING SAME 审中-公开

    公开(公告)号：EP3683099A1

    公开(公告)日：2020-07-22

    申请号：EP18855618.7

    申请日：2018-07-18

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： KAGEYAMA, Youichi ,  HIGASHIDE, Takashi ,  ATAGO, Katsunori ,  TAKENAKA, Kazuo ,  HIRAGI, Hisao ,  SETSU, Yugo

    IPC分类号： B60R16/03 ,  E05B49/00 ,  E05B81/80 ,  H02J7/34 ,  E05B81/04 ,  E05B81/76 ,  E05B81/86 ,  E05B81/88 ,  H02J50/00

    摘要： A door latch power supply device includes an electricity storage unit, a charger, a discharger, a contactless power receiver, an input port configured to be connected to an external power supply, an output port configured to be connected to an actuator, and an operation signal receiver configured to receive an operation signal sent in response to an operation for opening a door. While an input voltage input to the input port is higher than or equal to a first input threshold, the charger operates using power supplied from the external power supply so as to cause a storage voltage of the electricity storage unit to become a first storage voltage value, and the discharger outputs power in the electricity storage unit to the output port to place the actuator in the unlatched state in response to the operation signal received by the operation signal receiver. While the input voltage is lower than the first input threshold, the charger operates using power supplied from the contactless power receiver so as to cause the storage voltage to become a second storage voltage value, and then the discharger outputs power in the electricity storage unit to the output port to place the actuator in the unlatched state in response to the operation signal received.

    DC-DC CONVERTER
    7.
    发明公开
    DC-DC CONVERTER 审中-公开

    公开(公告)号：EP3913782A1

    公开(公告)日：2021-11-24

    申请号：EP19910903.4

    申请日：2019-12-18

    申请人： Panasonic Intellectual Property Management Co., Ltd.

    发明人： TAKENAKA, Kazuo ,  HIGASHIDE, Takashi ,  ATAGO, Katsunori ,  KAGEYAMA, Youichi ,  HIRAGI, Hisao ,  SETSU, Yugo ,  NISHINAKA, Hiroki

    IPC分类号： H02M3/155

    摘要： A DC-DC converter includes a switch element connected to an input end, a coupling capacitor connected to the switch element at a first node, a first inductor connected to the coupling capacitor at a second node and connected to an output end at a third node, a control circuit configured to control the switch element, a second inductor connected to the first node and a ground, a first diode connected to the second node and the ground, a smoothing capacitor connected to the third node and the ground, a comparator, a second diode connected to the second node and the comparator to supply a power voltage powering the comparator, and an output capacitor connected to the second diode and the ground. The comparator is configured to compare a voltage at the output end with a reference voltage so as to output a comparison result to the control circuit. This DC-DC converter operates stably.