发明授权
- 专利标题: Consumable electrode DC arc welder
- 专利标题(中): 消弧电极直流电弧焊机
-
申请号: US285002申请日: 1994-08-02
-
公开(公告)号: US5457300A公开(公告)日: 1995-10-10
- 发明人: Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
- 申请人: Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
- 申请人地址: JPX Osaka
- 专利权人: Sansha Electric Manufacturing Co., Ltd.
- 当前专利权人: Sansha Electric Manufacturing Co., Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX5-288679 19931025
- 主分类号: B23K9/073
- IPC分类号: B23K9/073 ; B23K9/095 ; H02M7/537 ; H02M9/00
摘要:
An inverter controlled DC arc welder of consumable electrode type includes an input rectifier for rectifying AC input power, an inverter for converting the rectifier output to high frequency AC power, an output transformer for stepping down the inverter output voltage, and an output rectifier for rectifying the transformer output voltage to provide a DC output voltage to be applied to a welder load. The welder further includes means for detecting current flowing through the welder load to produce a detection signal, a differentiator circuit for differentiating the detection signal, and correction means for correcting a predetermined reference voltage in accordance with the differentiator output voltage. Feedback control means controls the inverter in accordance with the difference between the transformer output and the corrected reference voltage.
公开/授权文献
- US5007033A World timepiece 公开/授权日:1991-04-09