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    • 7. 发明授权
    • Engine driven inverter welding power supply
    • 发动机驱动逆变器焊接电源
    • US06894401B2
    • 2005-05-17
    • US10629367
    • 2003-07-29
    • Richard BeesonStephen LiAlan Smith
    • Richard BeesonStephen LiAlan Smith
    • B23K9/073B23K9/095B23K9/10H02K7/18H02M9/00H02P9/04
    • B23K9/0956B23K9/1006
    • A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of a welding output operating parameter. The feedback may also be taken from the inverter or generator, and the generator may be controlled instead of or in addition to the engine. Engine parameters that may be controlled include engine speed, selecting between an idle speed and a run speed, a throttle position, a fuel pump, an injection timer, a fuel to air ratio, fuel consumption and ignition timing. Another aspect of the invention is having the feedback be responsive to one or more of the welding current, welding voltage, welding power, or functions thereof. The feedback may be responsive to the current, voltage, power, ripple and functions thereof. An aux power output is derived directly from the generator and feedback from the aux load is used to determine if the engine should be idling or running at high speed.
    • 一种用发动机驱动的逆变器电源进行焊接的方法和装置,包括用发动机和发电机产生交流输出。 输出整流和反相,提供交流逆变器输出。 使用反馈表示焊接输出操作参数来控制发动机。 也可以从逆变器或发电机获取反馈,并且发动机可以被控制而不是发动机或除了发动机之外。 可以控制的发动机参数包括发动机转速,怠速和运行速度之间的选择,节气门位置,燃料泵,喷射定时器,燃料空气比,燃料消耗和点火正时。 本发明的另一方面是使反馈响应于焊接电流,焊接电压,焊接功率或其功能中的一个或多个。 反馈可以响应于电流,电压,功率,纹波和功能。 辅助功率输出直接来自发电机,来自辅助负载的反馈用于确定发动机是否应空转或高速运行。
    • 8. 发明授权
    • Digital crossbar switch
    • 数字交叉开关
    • US4852083A
    • 1989-07-25
    • US65231
    • 1987-06-22
    • Jeffrey A. NiehausRobert G. FleckStephen LiBob D. Strong
    • Jeffrey A. NiehausRobert G. FleckStephen LiBob D. Strong
    • G06F13/36H03K17/00H04L12/52
    • H04L12/52
    • A digital crossbar switch for switching data from an input/output data bus to an internal data bus and to the same or another input/output data bus which includes a plurality of multiplexer logic units, an m-bit internal data bus coupled to each of said multiplexer logic units where m is an integer, and a plurality of n-bit input/output data buses one connected to each of the multiplexer logic units were n is an integer. The switch further includes an m/n to 1 multiplexer, where m/n is an integer, in each multiplexer logic unit. The m/n to 1 multiplexer has an input control to the internal data bus and an output coupled to a corresponding one of the input/output data buses and is operative in response to a configuration control signal to switch a selected n-bits of data from the internal data bus to the corresponding input/output data bus. A memory storage for storing configuration control signals is coupled to the m/n to 1 multiplexer.
    • 一种用于将数据从输入/输出数据总线切换到内部数据总线以及相同或另一输入/输出数据总线的数字交叉开关,该数据总线包括多个多路复用器逻辑单元,m位内部数据总线耦合到 所述复用器逻辑单元,其中m是整数,并且连接到每个多路复用器逻辑单元的多个n位输入/输出数据总线是n是整数。 在每个多路复用器逻辑单元中,开关进一步包括m / n至1复用器,其中m / n是整数。 m / n至1多路复用器具有对内部数据总线的输入控制和耦合到相应的一个输入/输出数据总线的输出,并且响应于配置控制信号操作以切换所选择的n位数据 从内部数据总线到相应的输入/输出数据总线。 用于存储配置控制信号的存储器存储器耦合到m / n到1多路复用器。