公开(公告)号：US11336184B2

公开(公告)日：2022-05-17

申请号：US17017152

申请日：2020-09-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinya Kimura ,  Toshihiko Bessho ,  Satoshi Kominami

IPC: H02M3/335 ,  B60L53/20 ,  H02M7/00

Abstract: An LLC resonant converter in which a capacitor (Cr), an inductance (Lr), and a power line between the capacitor (Cr) and the inductance (Lr), which constitute a series resonance unit, are resin-encapsulated by a resin. Because the series resonance unit that is a high voltage portion is resin-encapsulated collectively, it is possible to shorten an insulation distance even in the case of higher voltages and frequencies, and to prevent an increase in size.

公开(公告)号：US11043831B2

公开(公告)日：2021-06-22

申请号：US16504503

申请日：2019-07-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Satoshi Kominami ,  Nobuaki Satoh

IPC: H02J7/02 ,  B60L53/22 ,  B60L53/10 ,  H02J7/00 ,  H02M1/088 ,  H02M3/335 ,  B60L50/60

Abstract: A charging device includes an AC/DC converter, a first DC/DC converter, a second DC/DC converter, and an inductance element. The AC/DC converter is connected to an external power source and configured to convert AC power into DC power. The first DC/DC converter is configured to convert a voltage the DC power outputted from the AC/DC converter and supply the resultant DC power to a first battery. The second DC/DC converter is connected in parallel to the first battery on the output side of the first DC/DC converter, and configured to convert a voltage of the DC power outputted from the first DC/DC converter and supply the resultant DC power to a second battery. The inductance element is provided between the first DC/DC converter and the second DC/DC converter, and connected in series to the first DC/DC converter and the second DC/DC converter.

公开(公告)号：US10530262B2

公开(公告)日：2020-01-07

申请号：US16085074

申请日：2017-02-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Satoshi Kominami ,  Nobuaki Satoh

IPC: H02M3/335 ,  H02M7/5387 ,  H02M1/00 ,  G05F1/573 ,  H02M7/48 ,  G05F1/567 ,  H02M1/32

Abstract: A resonance power conversion device includes a bridge circuit, a transformer, a current detection circuit, and a control circuit. The bridge circuit includes a plurality of switching elements and receives a DC power. The transformer is connected to an output side of the bridge circuit. The current detection circuit detects a value of a current flowing through at least one of the plurality of switching elements. The control circuit determines whether or not an abnormality is occurring in the resonance power conversion device, based on the value detected by the current detection circuit at a predetermined time during a switching control.