US Patent No. 10,090,794

MOTOR DRIVER


Patent No. 10,090,794
Issue Date October 02, 2018
Title Motor Driver
Inventorship Tomokazu Yoshida, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 10,090,794

1. A motor driver comprising:a converter that converts an AC voltage into a DC voltage and outputs the DC voltage;
an inverter that inverts the input DC voltage into a multi-phase AC voltage for motor driving;
a short bar fixed to an output terminal of the converter and an input terminal of the inverter by screw fastening;
a first voltage detector that detects a voltage across the output terminals of the converter;
a second voltage detector that detects a voltage across the input terminals of the inverter; and
a reporting unit that provides, when a difference between the voltage detected by the first voltage detector and the voltage detected by the second voltage detector exceeds a predetermined threshold, a report relating thereto.