Title:
LASER OSCILLATOR AND DIRECT DIODE LASER PROCESSING APPARATUS PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2022/176948
Kind Code:
A1
Abstract:
The present invention comprises a control unit which: performs stop control for causing a power supply circuit to stop supply of a supply current upon determining that the supply current exceeds a predetermined threshold value; determines whether or not an input AC voltage is abnormal in a state where the power supply circuit has been caused to stop the supply of the supply current by the stop control; causes the power supply circuit to restart the supply of the supply current when the input AC voltage is not abnormal; determines whether or not the voltage of a light-emitting circuit is abnormal after the power supply circuit is caused to restart the supply of the supply current; and causes the power supply circuit to stop the supply of the supply current when the voltage of the light-emitting circuit is abnormal.
Inventors:
KUROSAKI YUTA
SAMIZO MASASHI
NAKAI SHUNSUKE
SAMIZO MASASHI
NAKAI SHUNSUKE
Application Number:
PCT/JP2022/006411
Publication Date:
August 25, 2022
Filing Date:
February 17, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02M3/28; H01S5/042
Domestic Patent References:
| WO2018186082A1 | 2018-10-11 | |||
| WO2015059906A1 | 2015-04-30 |
Foreign References:
| JP2008159329A | 2008-07-10 | |||
| JP2014176169A | 2014-09-22 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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