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公开(公告)号：US20100006551A1
公开(公告)日：2010-01-14
申请号：US12169292
申请日：2008-07-08
IPC分类号： B23K9/10
CPC分类号： B23K9/1018 , B23K9/091 , B23K9/092 , B23K9/1062 , H02M1/4208 , Y02B70/126 , Y02P70/181 , Y02P80/112
摘要： Enhanced power factor correction for a welding-based power supply includes a controller that tracks a rectified input voltage waveform and detects zero-crossing events therein. The controller generates an ideal sinusoidal current reference signal synchronized by expected zero-crossings in the supplied power. The reference signal is used in a current control loop within the controller to control the power electronics such that the waveform of the current drawn by the power supply matches the waveform of the input voltage. The frequency of the supplied power may be calculated using the expected zero-crossings and used to adjust the expected zero-crossings.
摘要翻译： 用于基于焊接的电源的增强的功率因数校正包括跟踪整流的输入电压波形并检测其中的过零事件的控制器。 控制器产生一个理想的正弦电流参考信号，通过预期的过零点在供电的电源中同步。 参考信号用于控制器内的电流控制环路中，以控制电力电子设备，使得由电源提取的电流的波形与输入电压的波形匹配。 所提供功率的频率可以使用预期的过零点来计算，并用于调整预期的过零点。
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公开(公告)号：US09789559B2
公开(公告)日：2017-10-17
申请号：US11876246
申请日：2007-10-22
CPC分类号： B23K9/1062
摘要： A system and method for operating an welding-based power source includes an welding-type power source includes a power conditioner configured to receive power from a power source and condition the power to have characteristics within a predefined set of thresholds and an inverter configured to receive the conditioned power from the power conditioner and convert the conditioned power to AC power. The welding-type power source also includes a rectifier configured to convert the AC power to DC welding-type power to drive a welding-type process and a processor segregated into at least two functional modules. The processor may be a field programmable gate array (FPGA) based processor. A first functional module is configured to control the power conditioner to condition the power to have characteristics within the predefined set of thresholds and a second functional module is configured to control the inverter to convert the conditioned power to AC power.
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公开(公告)号：US09162310B2
公开(公告)日：2015-10-20
申请号：US12169292
申请日：2008-07-08
CPC分类号： B23K9/1018 , B23K9/091 , B23K9/092 , B23K9/1062 , H02M1/4208 , Y02B70/126 , Y02P70/181 , Y02P80/112
摘要： Enhanced power factor correction for a welding-based power supply includes a controller that tracks a rectified input voltage waveform and detects zero-crossing events therein. The controller generates an ideal sinusoidal current reference signal synchronized by expected zero-crossings in the supplied power. The reference signal is used in a current control loop within the controller to control the power electronics such that the waveform of the current drawn by the power supply matches the waveform of the input voltage. The frequency of the supplied power may be calculated using the expected zero-crossings and used to adjust the expected zero-crossings.
摘要翻译： 用于基于焊接的电源的增强的功率因数校正包括跟踪整流的输入电压波形并检测其中的过零事件的控制器。 控制器产生一个理想的正弦电流参考信号，通过预期的过零点在供电的电源中同步。 参考信号用于控制器内的电流控制环路中，以控制电力电子设备，使得由电源提取的电流的波形与输入电压的波形匹配。 所提供功率的频率可以使用预期的过零点来计算，并用于调整预期的过零点。
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4.发明申请SYSTEM AND METHOD FOR CONTROLLING MULTIPLE PROCESSES IN A WELDING-TYPE POWER SOURCE USING A REFINED CONTROLLER ARCHITECTURE 有权使用精炼控制器架构控制焊接型电源中的多个工艺的系统和方法公开(公告)号：US20090101637A1
公开(公告)日：2009-04-23
申请号：US11876246
申请日：2007-10-22
CPC分类号： B23K9/1062
摘要： A system and method for operating an welding-based power source includes an welding-type power source includes a power conditioner configured to receive power from a power source and condition the power to have characteristics within a predefined set of thresholds and an inverter configured to receive the conditioned power from the power conditioner and convert the conditioned power to AC power. The welding-type power source also includes a rectifier configured to convert the AC power to DC welding-type power to drive a welding-type process and a processor segregated into at least two functional modules. The processor may be a field programmable gate array (FPGA) based processor. A first functional module is configured to control the power conditioner to condition the power to have characteristics within the predefined set of thresholds and a second functional module is configured to control the inverter to convert the conditioned power to AC power.
摘要翻译： 用于操作基于焊接的电源的系统和方法包括焊接型电源，其包括功率调节器，其被配置为从电源接收功率并且将功率调节为具有预定阈值集合内的特性;以及逆变器，被配置为接收 来自功率调节器的调节功率并将经调节的功率转换成AC电力。 焊接型电源还包括整流器，其被配置为将AC电力转换为DC焊接型电力以驱动焊接型过程，以及将处理器分离成至少两个功能模块。 处理器可以是基于现场可编程门阵列（FPGA）的处理器。 第一功能模块被配置为控制功率调节器以将功率调节为具有在预定义的阈值集合内的特性，并且第二功能模块被配置为控制逆变器将经调节的功率转换为AC功率。
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5.发明申请System and Method for Controlling Harmonics Injected onto an Input Line by a Welding-Type System 有权通过焊接式系统控制输入线上的谐波的控制系统和方法公开(公告)号：US20080272099A1
公开(公告)日：2008-11-06
申请号：US11744533
申请日：2007-05-04
CPC分类号： H02M1/12 , H02M1/44 , H02M7/53873
摘要： A system and method for operating an inverted-based power source includes a power input configured to receive alternating current (AC) power and a rectifier configured to convert the AC power to direct current (DC) power. The inverter-based power source also includes an inverter configured to receive the DC power from the rectifier and convert the DC power to AC power and a controller configured to generate switching signals according to a pattern of offsets from a regular half period and communicate the switching signals to the inverter or rectifier control operation of the inverter or rectifier.
摘要翻译： 用于操作基于逆变器的电源的系统和方法包括被配置为接收交流（AC）电力的功率输入和被配置为将AC功率转换为直流（DC）功率的整流器。 基于逆变器的电源还包括逆变器，其被配置为从整流器接收DC电力并将DC电力转换成AC电力;以及控制器，被配置为根据正常半周期的偏移模式生成开关信号，并且传送开关 向变频器或整流器发送信号给逆变器或整流器控制运行。
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公开(公告)号：US08664564B2
公开(公告)日：2014-03-04
申请号：US11744533
申请日：2007-05-04
IPC分类号： B23K9/10
CPC分类号： H02M1/12 , H02M1/44 , H02M7/53873
摘要： A system and method for operating an inverted-based power source includes a power input configured to receive alternating current (AC) power and a rectifier configured to convert the AC power to direct current (DC) power. The inverter-based power source also includes an inverter configured to receive the DC power from the rectifier and convert the DC power to AC power and a controller configured to generate switching signals according to a pattern of offsets from a regular half period and communicate the switching signals to the inverter or rectifier control operation of the inverter or rectifier.
摘要翻译： 用于操作基于逆变器的电源的系统和方法包括被配置为接收交流（AC）电力的功率输入和被配置为将AC功率转换为直流（DC）功率的整流器。 基于逆变器的电源还包括逆变器，其被配置为从整流器接收DC电力并将DC电力转换成AC电力;以及控制器，被配置为根据正常半周期的偏移模式生成开关信号，并且传送开关 向变频器或整流器发送信号给逆变器或整流器控制运行。
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公开(公告)号：US5824990A
公开(公告)日：1998-10-20
申请号：US584679
申请日：1996-01-11
摘要： An inverter power supply for use with various voltage inputs is provided. The inverter power supply generally receives 208 VAC single-phase, 208 VAC three-phase, 230 VAC three-phase, 230 VAC single-phase, 460 VAC single-phase, or 460 VAC three-phase power and provides a DC output current for welding, heating or cutting applications. The power inverter circuit includes a first tank circuit and a second tank circuit which are configured in serial or parallel according to a particular voltage input. Dual contactor switches respond to control signals from an AC sense circuit in order to configure the inverter power supply for the appropriate voltage input. The dual contactors may be mechanically interlocked and driven off the DC power for the control board.
摘要翻译： 提供了用于各种电压输入的逆变器电源。 逆变器电源通常接收208 VAC单相，208 VAC三相，230 VAC三相，230 VAC单相，460 VAC单相或460 VAC三相电源，并提供直流输出电流 焊接，加热或切割应用。 电力逆变器电路包括根据特定电压输入串联或并联配置的第一储能电路和第二储能电路。 双接触器开关响应来自AC感测电路的控制信号，以便将逆变器电源配置为适当的电压输入。 双接触器可以机械地互锁并驱动用于控制板的直流电源。
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公开(公告)号：US5615095A
公开(公告)日：1997-03-25
申请号：US474300
申请日：1995-06-07
申请人： Jon O. Reynolds , Michael D. Madsen
发明人： Jon O. Reynolds , Michael D. Madsen
CPC分类号： B23K9/1043
摘要： In accordance with the present invention a power supply for providing an ac/dc output to a load is disclosed. The power supply includes a first source of dc power and an inverter that provides an ac output to the load. A second source of dc power is provided and selectably connects the first and second sources of dc power in series with the load when the output current reverses. In one embodiment the power sources are connected in series with every output current reversal. The first source of dc power is controllable and the magnitude of the dc current is responsive to a current reference signal. A control circuit provides the current reference signal, wherein the current reference signal is pulsed immediately prior to the ac output reversing polarity. The first source of dc power source preferably includes a buck converter that is switched at a variable frequency, depending upon the desired output current. In the event the user selects either an ac or dc electrode negative output a period of electrode positive dc energy is provided at start up to help establish the arc.
摘要翻译： 根据本发明，公开了一种用于向负载提供ac / dc输出的电源。 电源包括第一直流电源和向负载提供交流输出的逆变器。 提供第二直流电源，并且当输出电流反向时，可选地将第一和第二直流电源与负载串联连接。 在一个实施例中，电源与每个输出电流反向串联连接。 直流电源的第一来源是可控的，并且直流电流的大小响应于电流参考信号。 控制电路提供电流参考信号，其中电流参考信号在交流输出反转极性之前立即脉冲。 直流电源的第一源优选地包括根据期望的输出电流以可变频率切换的降压转换器。 在用户选择交流或直流电极负输出的情况下，在启动时提供电极正直流能量的周期以帮助建立电弧。
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公开(公告)号：US5710696A
公开(公告)日：1998-01-20
申请号：US483732
申请日：1995-06-07
申请人： Jon O. Reynolds , Michael D. Madsen
发明人： Jon O. Reynolds , Michael D. Madsen
IPC分类号： B23K9/10 , H02M5/45 , H02M3/24 , H02M7/5387
CPC分类号： B23K9/1043
摘要： In accordance with the present invention a power supply for providing an ac/dc output to a load is disclosed. The power supply includes a first source of dc power and an inverter that provides an ac output to the load. A second source of dc power is provided and selectably connects the first and second sources of dc power in series with the load when the output current reverses. In one embodiment the power sources are connected in series with every output current reversal. The first source of dc power is controllable and the magnitude of the dc current is responsive to a current reference signal. A control circuit provides the current reference signal, wherein the current reference signal is pulsed immediately prior to the ac output reversing polarity. The first source of dc power source preferably includes a buck converter that is switched at a variable frequency, depending upon the desired output current. In the event the user selects either an ac or dc electrode negative output a period of electrode positive dc energy is provided at start up to help establish the arc.
摘要翻译： 根据本发明，公开了一种用于向负载提供ac / dc输出的电源。 电源包括第一直流电源和向负载提供交流输出的逆变器。 提供第二直流电源，并且当输出电流反向时，可选地将第一和第二直流电源与负载串联连接。 在一个实施例中，电源与每个输出电流反向串联连接。 直流电源的第一来源是可控的，并且直流电流的大小响应于电流参考信号。 控制电路提供电流参考信号，其中电流参考信号在交流输出反转极性之前立即脉冲。 直流电源的第一源优选地包括根据期望的输出电流以可变频率切换的降压转换器。 在用户选择交流或直流电极负输出的情况下，在启动时提供电极正直流能量的周期以帮助建立电弧。
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公开(公告)号：US08299398B2
公开(公告)日：2012-10-30
申请号：US11836898
申请日：2007-08-10
申请人： Michael D. Madsen
发明人： Michael D. Madsen
CPC分类号： H02M7/538 , B23K9/091 , B23K9/092 , B23K9/1043
摘要： A welding-type power source includes a primary inverter configured to generate a first AC power and a transformer having a primary side configured to receive the first AC power and a secondary side configured to deliver a second AC power. The welding-type power source further includes a converter configured to convert the second AC power to DC power and a half-bridge inverter configured to receive the DC power and having a first output and second output configured to deliver respective portions of an AC welding-type power to a welding output to generate a welding-type arc during a welding-type process. An inductance is connected at a first end to the first output and the second output of the half-bridge inverter and connected at a second end to the welding output. Additionally, a circuit is included that is configured to receive an energy stored in the inductance during delivery of one portion of the AC welding-type power and deliver the energy back to the inductance during delivery of another portion of the AC welding-type power.
摘要翻译： 焊接型电源包括：主逆变器，其被配置为产生第一AC电力;以及变压器，其具有被配置为接收第一AC电力的初级侧，以及被配置为传递第二AC电力的次级侧。 焊接型电源还包括被配置为将第二AC电力转换为DC电力的转换器以及配置为接收DC电力并具有第一输出和第二输出的半桥逆变器，该第一输出和第二输出被配置为传送AC焊接电源的相应部分， 在焊接过程中产生焊接电弧的焊接输出功率。 电感在第一端连接到半桥逆变器的第一输出端和第二输出端，并在第二端连接到焊接输出端。 另外，包括一个电路，其被配置为在AC焊接型电力的一部分的传送期间接收存储在电感中的能量，并且在AC焊接型电力的另一部分的传送期间将能量传送回电感。
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