公开(公告)号：US10033275B2

公开(公告)日：2018-07-24

申请号：US15013426

申请日：2016-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takuya Ishii ,  Atsushi Kitagawa ,  Tadata Hatanaka

IPC: H02M3/155 ,  H02M3/158 ,  H01L25/00 ,  H01L25/04 ,  H01L25/18 ,  H01L23/00 ,  H02M7/00

Abstract: A DC-DC converter module includes a module substrate on which switching transistors and a controller IC chip are mounted, stud terminals mounted on a surface of the module substrate, and an inductor attached to the stud terminals such that the inductor faces the module substrate. In a plan view, the switching transistors are arranged within an area where the inductor overlaps the module substrate, whereas at least a portion of the controller IC chip is arranged outside the area.

公开(公告)号：US10483966B2

公开(公告)日：2019-11-19

申请号：US16226081

申请日：2018-12-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takahiro Uehara ,  Takuya Ishii ,  Hiroyuki Handa ,  Atsushi Kitagawa ,  Takeshi Tanaka

IPC: H03K17/64 ,  H03K17/12 ,  H02M1/00

Abstract: A switching circuit includes: a drive power supply; a first transistor and a second transistor; a drive signal source; and a drive circuit. Each of the first transistor and the second transistor includes: a drain electrode and a source electrode in which a main current flows when a corresponding one of the first transistor and the second transistor is ON; a first source terminal for passing the main current; and a second source terminal. Here, the first source terminal is connected to the source electrode at an impedance lower than an impedance of the second source terminal.

公开(公告)号：US10205449B2

公开(公告)日：2019-02-12

申请号：US15925104

申请日：2018-03-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takahiro Uehara ,  Takuya Ishii ,  Hiroyuki Handa ,  Atsushi Kitagawa ,  Takeshi Tanaka

IPC: H03K17/64 ,  H03K17/12 ,  H02M1/00

Abstract: A switching circuit includes: a drive power supply; a first transistor and a second transistor; a drive signal source; and a drive circuit. Each of the first transistor and the second transistor includes: a drain electrode and a source electrode in which a main current flows when a corresponding one of the first transistor and the second transistor is ON; a first source terminal for passing the main current; and a second source terminal. Here, the first source terminal is connected to the source electrode at an impedance lower than an impedance of the second source terminal.