公开(公告)号：US11545911B2

公开(公告)日：2023-01-03

申请号：US16959009

申请日：2019-08-08

申请人： Dengensha Toa Co., Ltd.

发明人： Yoshihiko Ochiai ,  Shinichi Sato ,  Motoaki Fuchiwaki

IPC分类号： B23K11/11 ,  B23K11/24 ,  H02M7/48

摘要： Provided is an inverter power supply including a measurement function of measuring deterioration of a rectifier element such as a diode.
The inverter power supply includes a step-down stabilization unit that applies a reverse voltage increasing gradually to diodes, an isolation amplifier that detects a current value of a current flowing to the diodes when the reverse voltage is applied, and an inverter control unit that decides that the diodes have deteriorated when the detected current value is larger than a determination current value for determining deterioration of the diodes, and decides that the diodes have not deteriorated when the detected current value is smaller than the determination current value.

公开(公告)号：US20200336082A1

公开(公告)日：2020-10-22

申请号：US16959009

申请日：2019-08-08

申请人： Dengensha Toa Co., Ltd.

发明人： Yoshihiko Ochiai ,  Shinichi Sato ,  Motoaki Fuchiwaki

IPC分类号： H02M7/48 ,  B23K11/11 ,  B23K11/24

摘要： Provided is an inverter power supply including a measurement function of measuring deterioration of a rectifier element such as a diode.The inverter power supply includes a step-down stabilization unit that applies a reverse voltage increasing gradually to diodes, an isolation amplifier that detects a current value of a current flowing to the diodes when the reverse voltage is applied, and an inverter control unit that decides that the diodes have deteriorated when the detected current value is larger than a determination current value for determining deterioration of the diodes, and decides that the diodes have not deteriorated when the detected current value is smaller than the determination current value.