Welding processing method


Application Number: 00108945
Application Date: 2000.05.19
Publication Number: 1274630
Publication Date: 2000.11.29
Priority Information: 1999/5/21 JP 141023/99
International: B23K9/09
Applicant(s) Name: Miyachi Technos Corp.
Address:
Inventor(s) Name: Moro Kyoji;Mukai Ren
Patent Agency Code: 11105
Patent Agent: ma ying
Abstract In odd-numbered current-supplying periods of a plurality of current-supplying periods constituting a gross current-supplying time, a control unit 42 allows continuous switching actions of only a first set of switching elements at an inverter frequency, with a second set of switching elements remaining OFF. In even-numbered current-supplying periods, the control unit 42 allows continuous switching actions of only the second set of switching elements at the inverter frequency, with the first set of switching elements (24, 28) remaining OFF. As a result of this, a secondary circuit of the power supply apparatus allows a secondary current i2, namely a fusing current I having a substantially trapezoidal current waveform to flow in a positive direction in the odd-numbered current-supplying periods, and to flow in a negative direction in the even-numbered current-supplying periods.