Title:
Motor driving which has an insensible belt width presumption function of the output stage
Document Type and Number:
Japanese Patent JP6117744
Kind Code:
B2
Abstract:
A motor drive device includes an inverter for generating an AC voltage from a DC voltage by switching power elements, a current detection unit for detecting a current to be inputted to a motor, a current controller for generating a voltage command from a current command and a current detection value, a gate drive command generator for generating drive commands for the power elements such that a dead time in an output stage, that is a period of time in which both of the power elements for upper and lower arms that compose the output stage of the inverter are turned off, becomes a predetermined value, a gate drive circuit unit for outputting gate drive signals for the power elements, and a dead time estimator for estimating the dead time in the output stage that is produced by the gate drive signals for the power elements.
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Inventors:
Kunio Tsuchida
Taku Sasaki
Taku Sasaki
Application Number:
JP2014143626A
Publication Date:
April 19, 2017
Filing Date:
July 11, 2014
Export Citation:
Assignee:
FANUC Corporation
International Classes:
H02P27/06
Foreign References:
| WO2005023626A1 | ||||
| US6362593 | ||||
| US7541769 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura
Jun Tsuruta
Tomohiro Minamiyama
Kenichi Nakamura