Title:
半導体装置、電力変換装置、駆動装置、車両、及び、昇降機
Document Type and Number:
Japanese Patent JP6840695
Kind Code:
B2
Abstract:
Provided is a semiconductor device including: a semiconductor element having a first electrode, a second electrode, and a gate electrode; a surge voltage measuring unit electrically connected to the first electrode or the second electrode to measure a surge voltage; at least one measuring unit selected from a first measuring unit measuring electromagnetic noise caused by an operation of the semiconductor element, a second measuring unit measuring a voltage of a wiring electrically connected to the first electrode or the second electrode, and a third measuring unit measuring a current of the wiring electrically connected to the first electrode or the second electrode; a variable resistor electrically connected to the gate electrode; and a controller controlling the variable resistor based on measurement results of the surge voltage measuring unit and the at least one measuring unit and change a resistance value of the variable resistor.
Inventors:
Kentaro Ikeda
Application Number:
JP2018053638A
Publication Date:
March 10, 2021
Filing Date:
March 21, 2018
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H02M1/08; H02M7/48; H03K17/16
Domestic Patent References:
| JP201933556A | ||||
| JP2017221004A | ||||
| JP2011172446A | ||||
| JP11234104A |
Attorney, Agent or Firm:
Tetsuma Ikegami
Akira Sudo
Mitsuyuki Matsuyama
Akira Sudo
Mitsuyuki Matsuyama