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.

公开(公告)号：EP3726694A1

公开(公告)日：2020-10-21

申请号：EP18888444.9

申请日：2018-12-06

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

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

IPC分类号： H02J7/00 ,  B60L1/00 ,  B60R16/033 ,  B60R16/04 ,  H02J7/34 ,  H02J50/00

摘要： When the output voltage of a vehicle battery is lower than a lower limit value of an activation voltage, a power storage is charged with electric power supplied from the outside to a contactless power receiver, and thus the electric power stored in the power storage is supplied to a controller via a discharger to enable the controller to be activated. After the controller is activated, the controller causes a battery relay to be connected using the electric power supplied from the power storage via the discharger. Electric power is supplied from a high voltage battery to the vehicle battery to enable the vehicle battery to output a voltage higher than or equal to the lower limit value and enable a plurality of relays to be connected.