A pulsed arc welding system includes a current pulse generating circuit and a background current generating circuit. The lowest arc voltage across the arc load is detected during a predetermined time period immediately preceeding the onset of each current pulse. The pulse repetition rate is controlled on the basis of this detected voltage so that the detected arc voltage becomes constant.
申请公布号
US4758707(A)
申请公布日期
1988.07.19
申请号
US19870058361
申请日期
1987.06.04
申请人
WELDING INDUSTRIES OF AUSTRALIA PTY., LTD.;COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION
发明人
OGILVIE, GRAEME J.;BROUGHAM, WILLIAM K.;CHEESMAN, GARY L.;LESKE, DAVID M.