公开(公告)号：US20240162845A1

公开(公告)日：2024-05-16

申请号：US18549175

申请日：2022-03-09

Applicant: FANUC CORPORATION

Inventor： Tetsuro MATSUDAIRA ,  Yoshinori SAKAI ,  Shuuji KUDOU ,  Yoshikiyo TANABE ,  Toshihiro FUJIMORI

IPC: H02P27/08 ,  H02M1/00 ,  H02P29/024

CPC classification number: H02P27/08 ,  H02M1/007 ,  H02P29/024 ,  H02P2201/07

Abstract: A motor control device includes a DC/DC converter that steps up or steps down a voltage of a direct current power source and performs charging, while controlling an inrush current to a smoothing capacitor; a monitor circuit for the output of the DC/DC converter; and a control part that turns the operation of the DC/DC converter on and off, and turns the DC/DC converter off when the monitor circuit has detected an abnormality.

公开(公告)号：US20180358803A1

公开(公告)日：2018-12-13

申请号：US16006412

申请日：2018-06-12

Applicant: FANUC CORPORATION

Inventor： Shuuji KUDOU ,  Yoshinori SAKAI

IPC: H02H7/12 ,  H02H1/00

Abstract: A unit having a power supply circuit that converts an input voltage from an input power supply to a predetermined output voltage, includes: an output terminal configured to output the output voltage to the outside of the unit; a switch provided between the power supply circuit and the output terminal; and a switch control part configured to turn off the switch when the input voltage is not applied from the input power supply and turn on the switch when the input voltage is applied.