Title:
電流検出装置および半導体装置
Document Type and Number:
Japanese Patent JP6848183
Kind Code:
B2
Abstract:
An inverter circuit with a current detection circuitry includes a main bridge circuit connected between the pair of DC input nodes, the main bridge circuit converting the received DC voltage to a primary AC current so as to output the primary AC current through an output terminal to be connected to a load; a supplementary bridge circuit connected in parallel to the main bridge circuit between the pair of DC input nodes, the supplementary bridge circuit having a circuit configuration identical to that of the main bridge circuit with smaller circuit parameters in at least some of constituent circuit elements so as to generate a detection-use AC current that is a prescribed fraction of said AC current outputted by the main bridge circuit. The detection-use AC current is detected by a current detector so as to calculate the amount of the primary AC current.
Inventors:
Masahiro Sasaki
Application Number:
JP2016026914A
Publication Date:
March 24, 2021
Filing Date:
February 16, 2016
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
G01R19/00; H02M7/48
Domestic Patent References:
| JP2015228771A | ||||
| JP8149853A | ||||
| JP2014204629A |
Foreign References:
| WO2015114789A1 |
Attorney, Agent or Firm:
Fuso International Patent Office