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1. 发明申请

US20130194828A1 INVERTER OUTPUT RECTIFIER CIRCUIT 失效
标题翻译：逆变器输出整流器电路
公开(公告)号：US20130194828A1
公开(公告)日：2013-08-01
申请号：US13827188
申请日：2013-03-14
申请人： LIFENG LARRY LUO , MATTHEW JON KRUEGER
发明人： LIFENG LARRY LUO , MATTHEW JON KRUEGER
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , B23K9/1043 , H02M3/33538 , H02M3/337 , H02M7/06
摘要： 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.
摘要翻译：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。

2. 发明申请

US20110049115A1 AUXILIARY POWER SUPPLY FOR A WELDING MACHINE 有权
标题翻译：焊机辅助电源
公开(公告)号：US20110049115A1
公开(公告)日：2011-03-03
申请号：US12552782
申请日：2009-09-02
申请人： LIFENG LARRY LUO
发明人： LIFENG LARRY LUO
IPC分类号： B23K9/10
CPC分类号： B23K9/1006 , B23K9/1056
摘要： A electric welding machine having an auxiliary power output, and a method for controlling the auxiliary power output on a welding machine is provided. In one embodiment, the system includes a main transformer having a first secondary winding in circuit communication with a welder power output and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output. The auxiliary power supply includes an input for monitoring the welder power output to determine if the welder power output is on; circuitry for determining whether a surge or spike in demand is present at the auxiliary power output; and circuitry for limiting the available power to the auxiliary power output if certain conditions are satisfied. One method includes monitoring the demand on an auxiliary power output, monitoring a welding power output, determining whether there is a spike in the demand on the auxiliary power output that is above a first limit, and reducing the available power to the auxiliary power output if the spike is above the first limit and the welding power output is energized.
摘要翻译：提供一种具有辅助功率输出的电焊机以及用于控制焊接机上辅助功率输出的方法。在一个实施例中，该系统包括主变压器，其具有与焊机功率输出电路通信的第一次级绕组和与具有辅助功率输出的辅助电源电路通信的第二次级绕组。辅助电源包括用于监测焊机功率输出的输入，以确定焊机功率输出是否接通; 用于确定在辅助功率输出端是否存在需求的浪涌或峰值的电路; 以及如果满足某些条件，则限制辅助功率输出的可用功率的电路。一种方法包括监视对辅助电力输出的需求，监测焊接功率输出，确定对辅助电力输出的需求是否高于第一极限的峰值，以及如果尖峰高于第一极限，焊接功率输出通电。

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