公开(公告)号：US20220250481A1

公开(公告)日：2022-08-11

申请号：US17618799

申请日：2020-05-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKASHI HIROBE ,  TATSUYA OKAMOTO ,  SHUN KAZAMA

IPC: B60L3/04 ,  H02H7/18 ,  H02H3/093 ,  H02H3/087

Abstract: A power cutoff device includes a relay unit including a switch having a connecting state to be electrically conductive and a cutoff state to be electrically non-conductive, a cutoff unit connected in series to the switch, a current detector configured to detect an object current flowing through the cutoff unit, and a controller configured to control the relay unit and the cutoff unit. The cutoff unit has a connecting state to be electrically conductive and an irreversible cutoff state to be electrically conductive. The controller is configured to obtain a changing rate of the object current with respect to time. The controller is configured to cause the switch to be in the connecting state and cause the cutoff unit to be in the connecting state if determining that the changing rate is not greater than a changing-rate threshold. The controller is configured to cause the relay unit to be in the cutoff state and cause the cutoff unit to be in the irreversible cutoff state if determining that the changing rate is greater than the changing-rate threshold. This power cutoff device has a small size.

公开(公告)号：US20150222262A1

公开(公告)日：2015-08-06

申请号：US14687953

申请日：2015-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENJI HANAMURA ,  SHUN KAZAMA ,  HAJIME HIDA

IPC: H03K17/567 ,  H03K17/687

CPC classification number: H03K17/567 ,  B60L3/003 ,  B60L7/14 ,  B60L11/1803 ,  B60L15/007 ,  B60L2210/10 ,  B60L2220/14 ,  H02M7/003 ,  H03K17/08122 ,  H03K17/687 ,  H03K2017/0806 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7216

Abstract: A drive device according to one aspect of the disclosure includes a control terminal connector, a switch circuit, a current limit circuit, and a clamp switch on a circuit board. The clamp switch is located in a second quadrant or a fourth quadrant of four quadrants, where the four quadrants are partitioned by two mutually orthogonal virtual lines with the current limit circuit set as an origin and the four quadrants consist of a first quadrant including an area where the control terminal connector is located, the second quadrant, a third quadrant, and the fourth quadrant, in clockwise order.

Abstract translation: 根据本公开的一个方面的驱动装置包括控制端子连接器，开关电路，限流电路和电路板上的钳位开关。 钳位开关位于四个象限的第二象限或第四象限中，其中四个象限由两个相互正交的虚拟线分隔，电流限制电路设置为原点，四个象限由包含区域的第一象限组成 控制终端连接器所在的位置，第二象限，第三象限和第四象限。

公开(公告)号：US20150138858A1

公开(公告)日：2015-05-21

申请号：US14530733

申请日：2014-11-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： FUMITO KUSAMA ,  HAJIME HIDA ,  SHUN KAZAMA ,  KENJI HANAMURA

IPC: H03K3/012 ,  H02M7/537 ,  H02M3/156

CPC classification number: H02M7/537 ,  H02M3/158 ,  H03K17/04123 ,  H03K2217/0036 ,  H03K2217/009

Abstract: A driving apparatus of the present disclosure includes a coil including a second terminal connected to a control terminal of a switching element, a charging switch connected between a first potential line and a first terminal of the coil, a clamp switch connected between the first potential line and the control terminal of the switching element, a charging diode connected between a second potential line and the first terminal of the coil, and a control circuit that outputs a charging control signal for turning on the charging switch and for turning off the charging switch before a potential of the control terminal of the switching element reaches the first potential and a clamp control signal for turning on the clamp switch after the charging switch is turned on.

Abstract translation: 本公开的驱动装置包括线圈，其包括连接到开关元件的控制端子的第二端子，连接在第一电位线和线圈的第一端子之间的充电开关，连接在第一电位线 以及开关元件的控制端子，连接在第二电位线和线圈的第一端子之间的充电二极管，以及控制电路，其输出用于接通充电开关的充电控制信号，并且在充电开关之前关闭充电开关 开关元件的控制端子的电位达到第一电位，并且在充电开关接通之后用于接通钳位开关的钳位控制信号。

公开(公告)号：US20200021202A1

公开(公告)日：2020-01-16

申请号：US16492941

申请日：2018-04-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINGO OKAURA ,  SHUN KAZAMA ,  TAKASHI MONDEN

IPC: H02M7/00 ,  H02M7/44 ,  H05K7/20

Abstract: An electric power conversion device according to the present disclosure includes: a positive electrode unit including a positive main conductor portion and a positive joining conductor portion; a negative electrode unit including a negative main conductor portion and a negative joining conductor portion; a capacitor circuit connected to the positive electrode unit and the negative electrode unit; an electric power conversion unit connected to the positive main conductor portion, the positive joining conductor portion, the negative main conductor portion, and the negative joining conductor portion; and a heat dissipation unit joined to the capacitor circuit unit and the electric power conversion unit. The positive main conductor portion and the negative main conductor portion are insulated from each other and arranged facing each other, and the positive joining conductor portion and the negative joining conductor portion are insulated from each other and arranged facing each other.