公开(公告)号：EP3726713A1

公开(公告)日：2020-10-21

申请号：EP20169789.3

申请日：2020-04-16

申请人： JTEKT CORPORATION

发明人： SATO, Fumihiko ,  OKUDA, Masataka ,  MIKIDA, Toshiyuki ,  HANZAWA, Hiroaki

IPC分类号： H02M1/32 ,  H01L25/07 ,  H01L25/18

摘要： An electric power supply circuit includes an auxiliary electric power supply (100); a first MOSFET (101) provided on an auxiliary electric power supply-side feed path, the first MOSFET (101) including a parasitic diode configured to restrict conduction of electric current in a direction from the auxiliary electric power supply (100) toward the feed target; a second MOSFET (102) provided on the auxiliary electric power supply-side feed path, the second MOSFET (102) including a parasitic diode configured to restrict conduction of the electric current in a direction from the feed target toward the auxiliary electric power supply (100); and a third MOSFET (103) provided on at least one of the auxiliary electric power supply-side feed path and the main electric power supply-side feed path, the third MOSFET (103) including a parasitic diode configured to restrict conduction of the electric current in a direction from the main electric power supply toward the auxiliary electric power supply (100).

公开(公告)号：EP3716483A1

公开(公告)日：2020-09-30

申请号：EP20165561.0

申请日：2020-03-25

申请人： JTEKT CORPORATION

发明人： SATO, Fumihiko ,  SUZUKI, Shingo ,  HANZAWA, Hiroaki ,  OKUDA, Masataka ,  MIKIDA, Toshiyuki

IPC分类号： H03K17/06 ,  H03K17/12 ,  H02J7/00 ,  B62D5/04

摘要： A power supply circuit (41) includes a first P-channel MOSFET (PMOS 1) and a first voltage application circuit (71). The first P-channel MOSFET (PMOS 1) is provided between an on-board power supply (50) and a vehicular apparatus that is a power supply target, and is configured to switch a power-ON state in which electric power is supplied to the vehicular apparatus and a power-OFF state in which the supply of the electric power is interrupted. The first voltage application circuit (71) is configured to apply a voltage having a potential lower than a potential of the on-board power supply (50) to a gate terminal such that a state of the first P-channel MOSFET (PMOS 1) is switched to the power-ON state, and apply a voltage having a potential equal to the potential of the on-board power supply (50) to the gate terminal such that the state of the first P-channel MOSFET (PMOS 1) is switched to the power-OFF state.