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    • 9. 发明申请
    • INVERTER OUTPUT RECTIFIER CIRCUIT
    • 逆变器输出整流器电路
    • US20130194828A1
    • 2013-08-01
    • US13827188
    • 2013-03-14
    • LIFENG LARRY LUOMATTHEW JON KRUEGER
    • LIFENG LARRY LUOMATTHEW JON KRUEGER
    • H02M3/335
    • H02M3/33507B23K9/1043H02M3/33538H02M3/337H02M7/06
    • In a power source of a welding system, an inverter rectifier output circuit and method for reducing the blocking voltages across saturable reactors associated with a rectifier coupled to a transformer winding in the inverter rectifier output circuit during both turn-on and turn-off transitions of the rectifier. At least a portion of a reverse recovery current associated with the rectifier is blocked by allowing blocking voltages to build across associated saturable reactors during a transition phase of the rectifier. During a turn-off portion of the transition phase, the blocking voltages are reduced using a RC circuit, thereby suppressing a peak voltage associated with the rectifier. During a turn-on portion of the transition phase, the blocking voltages are reduced using another saturable reactor in series with a free-wheeling diode.
    • 在一个焊接系统的电源中,一个逆变器整流器输出电路和方法,用于在两个开关和关断转换期间减少与在逆变器整流器输出电路中与变压器绕组耦合的整流器相连的饱和电抗器上的阻塞电压 整流器。 与整流器相关联的反向恢复电流的至少一部分通过在整流器的过渡阶段允许阻塞电压在相关联的可饱和电抗器上构建而被阻断。 在过渡阶段的关断部分期间,使用RC电路来减小阻塞电压,从而抑制与整流器相关联的峰值电压。 在过渡阶段的导通部分期间,使用与续流二极管串联的另一可饱和电抗器来减小阻塞电压。