Title:
スイッチング素子制御回路及びパワーモジュール
Document Type and Number:
Japanese Patent JP6834013
Kind Code:
B2
Abstract:
A switching element control circuit includes: a third electrode voltage control part which controls a third electrode voltage; a first electrode current detection part which detects a first electrode current which flows through the switching element; a memory part which stores information including an initial threshold voltage and an initial first electrode current, and a drain current characteristic of a threshold voltage; and a threshold voltage calculation part which calculates a threshold voltage at a time of operating the switching element based on information including the first electrode current, the initial threshold voltage, and an initial first electrode current, and information relating to the first electrode current characteristic of the threshold voltage, wherein the third electrode voltage control part controls the third electrode voltage based on a threshold voltage at the time of operating the switching element calculated by the threshold voltage calculation part.
Inventors:
Kenichi Suzuki
Wataru Miyazawa
Wataru Miyazawa
Application Number:
JP2019542945A
Publication Date:
February 24, 2021
Filing Date:
September 25, 2017
Export Citation:
Assignee:
Shindengen Industry Co., Ltd.
International Classes:
H02M1/08; H03K17/04; H03K17/14; H03K17/687
Domestic Patent References:
| JP2014060594A | ||||
| JP2013099181A | ||||
| JP2012244613A |
Foreign References:
| US20080007318 | ||||
| EP2178211A1 |
Attorney, Agent or Firm:
Mebuki International Patent Business Corporation
Seigo Matsuo
Seigo Matsuo