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1. 发明授权

US3774011A Multiple arc direct current constant potential welding generator 失效
标题翻译：多弧直流电流恒压焊接发电机
公开(公告)号：US3774011A
公开(公告)日：1973-11-20
申请号：US3774011D
申请日：1971-01-13
申请人： SMITH CORP A O
发明人： ALDENHOFF B
IPC分类号： B23K9/10
CPC分类号： B23K9/1068
摘要： A multiple arc welding generator supplies a presettable direct current constant potential output to a plurality of welding arcs which are individually initiated and terminated. A controlled rectifier bridge includes individual gated rectifiers connected to a pulse source and selectively supplies unidirectional current to the field of the generator from an alternating current supply of the usual 60 cycle supply system. A resistive sensing circuit is parallel connected to the plurality of paralleled arcs and is connnected through a resistive element to supply a linear proportional generator output voltage signal to a signal summing point. A direct current reference source is connected to supply a presettable constant potential reference signal of opposite polarity to the same signal summing point to combine with the proportional generator voltage signal and supply a control signal to the pulse source which maintains the output voltage constant within each electrical cycle of the alternating current input.
摘要翻译：多弧焊接发生器将可预设的直流恒定电位输出提供给单独启动和终止的多个焊接电弧。可控整流桥包括连接到脉冲源的单独的门控整流器，并且从通常的60周期供电系统的交流电源中选择性地向发电机的场提供单向电流。电阻感测电路并联连接到多个并联的电弧并通过电阻元件连接，以向线性比例发电机输出电压信号提供给信号求和点。连接直流参考电源以将相对极性的可预置的恒定电位参考信号提供给相同的信号求和点以与比例发生器电压信号组合，并向脉冲源提供控制信号，该脉冲源维持每个电气内的输出电压恒定交流输入的周期。

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