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    Power supply apparatus
    4.
    发明申请
    Power supply apparatus 有权
    电源设备

    公开(公告)号：US20070165433A1

    公开(公告)日：2007-07-19

    申请号：US11651299

    申请日：2007-01-08

    申请人： Masao Katooka ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    发明人： Masao Katooka ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    IPC分类号： H02M1/10

    CPC分类号： H02M1/10

    摘要： One of a plurality of voltages is adapted to be applied to power supply terminals (2a, 2b, 2c). A rectifying circuit (6) rectifies the applied voltage and develops a rectified voltage between the output terminals (6a, 6b) thereof. Inverters (16a, 16b) are connected into one of a plurality of inverter connections between the rectifier output terminals (6a, 6b) in response to one of a plurality of inverter connection indicative signals. The inverter connections are set to correspond to respective ones of the plurality of voltages, so that a predetermined voltage can be applied to each inverter whichever one of the plurality of voltages is applied to the power supply terminals. An inverter connection indicative signal generating circuit (34) is manually operated to generate a desired one of the inverter connection indicative signals. A thyristor (8) is disposed between the rectifier output terminals (6a, 6b) and the inverters (16a, 16b). When one of the plurality of voltages is applied to the power supply terminals, a voltage detecting circuit (38) generates an inverter connection indicative signal corresponding to the voltage applied to the power supply terminals. A judging unit (26d) determines whether or not the inverter connection indicative signals from the voltage detecting circuit (38) and the inverter connection indicative signal generating circuit (34) match. When the two signals match, a thyristor control unit (26a) provides a CLOSE signal to the thyristor (8). When the two signals do not match, an alarm circuit (42) is activated.

    摘要翻译： 多个电压中的一个适于施加到电源端子（2a，2b，2c）。 整流电路（6）对施加的电压进行整流，并在其输出端子（6a，6b）之间产生整流电压。 响应于多个逆变器连接指示信号中的一个，逆变器（16a，16b）连接到整流器输出端子（6a，6b）之间的多个逆变器连接中的一个。 逆变器连接被设置为对应于多个电压中的相应电压，使得可以向每个逆变器施加预定电压，无论哪一个电压被施加到电源端子。 逆变器连接指示信号发生电路（34）被手动操作以产生期望的一个逆变器连接指示信号。 在整流器输出端子（6a，6b）和逆变器（16a，16b）之间设置晶闸管（8）。 当多个电压中的一个施加到电源端子时，电压检测电路（38）产生与施加到电源端子的电压相对应的反相器连接指示信号。 判断单元（26d）判定来自电压检测电路（38）和逆变器连接指示信号生成电路（34）的逆变器连接指示信号是否一致。 当两个信号匹配时，晶闸管控制单元（26a）向晶闸管（8）提供CLOSE信号。 当两个信号不匹配时，报警电路（42）被激活。

    Power supply apparatus for welder
    7.
    发明授权
    Power supply apparatus for welder 有权
    焊机电源设备

    公开(公告)号：US06797922B2

    公开(公告)日：2004-09-28

    申请号：US10414882

    申请日：2003-04-16

    申请人： Masao Katooka ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    发明人： Masao Katooka ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    IPC分类号： B23K909

    CPC分类号： B23K9/1062 ,  B23K9/092

    摘要： A power supply apparatus for a welder includes a rectifier (104) and a smoothing reactor (106) which operate together to convert a commercial AC supply voltage to a DC voltage. The DC voltage is converted to a high-frequency voltage by an inverter (108), which, in turn, is voltage-transformed by a voltage-transformer (110). The voltage-transformed, high-frequency voltage is converted to a DC voltage by a rectifying diode (112) and a smoothing reactor (114), and the resulting DC voltage is applied to a workpiece (118a) and a torch (118b). A current detector (120) develops a load current representative signal, and a control circuit (122) so controls a drive circuit (126) which drives the inverter (108) that the load current representative signal becomes equal to a reference current signal provided by a reference source (124). When a small load current is used, a pulse forming switch (140) is repetitively turned on and off to produce a pulse current from a pulse current setting source (139). The pulse current is superposed on a control signal from the control circuit (122).

    摘要翻译： 一种用于焊接机的电源装置包括整流器（104）和平滑电抗器（106），其一起工作以将商用AC电源电压转换成DC电压。 通过逆变器（108）将直流电压转换成高频电压，反相器又由电压互感器（110）进行电压变换。 电压变换的高频电压由整流二极管（112）和平滑电抗器（114）转换为直流电压，并将所得到的直流电压施加到工件（118a）和焊炬（118b）。 电流检测器（120）形成负载电流代表信号，控制电路（122）控制驱动电路（126），该驱动电路驱动逆变器（108）负载电流代表信号变为等于由 参考源（124）。 当使用小的负载电流时，脉冲形成开关（140）被重复地导通和截止，以产生来自脉冲电流设定源（139）的脉冲电流。 脉冲电流叠加在来自控制电路（122）的控制信号上。

    Power supply apparatus
    8.
    发明授权
    Power supply apparatus 有权
    电源设备

    公开(公告)号：US07339807B2

    公开(公告)日：2008-03-04

    申请号：US11651299

    申请日：2007-01-08

    申请人： Masao Katooka ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    发明人： Masao Katooka ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Takeshi Morimoto ,  Hideo Ishii

    IPC分类号： H02M7/00 ,  H02H7/122

    CPC分类号： H02M1/10

    摘要： One of a plurality of voltages is adapted to be applied to power supply terminals (2a, 2b, 2c). A rectifying circuit (6) rectifies the applied voltage and develops a rectified voltage between the output terminals (6a, 6b) thereof. Inverters (16a, 16b) are connected into one of a plurality of inverter connections between the rectifier output terminals (6a, 6b) in response to one of a plurality of inverter connection indicative signals. The inverter connections are set to correspond to respective ones of the plurality of voltages, so that a predetermined voltage can be applied to each inverter whichever one of the plurality of voltages is applied to the power supply terminals. An inverter connection indicative signal generating circuit (34) is manually operated to generate a desired one of the inverter connection indicative signals. A thyristor (8) is disposed between the rectifier output terminals (6a, 6b) and the inverters (16a, 16b). When one of the plurality of voltages is applied to the power supply terminals, a voltage detecting circuit (38) generates an inverter connection indicative signal corresponding to the voltage applied to the power supply terminals. A judging unit (26d) determines whether or not the inverter connection indicative signals from the voltage detecting circuit (38) and the inverter connection indicative signal generating circuit (34) match. When the two signals match, a thyristor control unit (26a) provides a CLOSE signal to the thyristor (8). When the two signals do not match, an alarm circuit (42) is activated.

    摘要翻译： 多个电压中的一个适于施加到电源端子（2a，2b，2c）。 整流电路（6）对施加的电压进行整流，并在其输出端子（6a，6b）之间产生整流电压。 响应于多个逆变器连接指示信号中的一个，逆变器（16a，16b）连接到整流器输出端子（6a，6b）之间的多个逆变器连接中的一个。 逆变器连接被设置为对应于多个电压中的相应电压，使得可以向每个逆变器施加预定电压，无论哪一个电压被施加到电源端子。 逆变器连接指示信号发生电路（34）被手动操作以产生期望的一个逆变器连接指示信号。 在整流器输出端子（6a，6b）和逆变器（16a，16b）之间设置晶闸管（8）。 当多个电压中的一个施加到电源端子时，电压检测电路（38）产生与施加到电源端子的电压相对应的反相器连接指示信号。 判断单元（26d）判定来自电压检测电路（38）和逆变器连接指示信号生成电路（34）的逆变器连接指示信号是否一致。 当两个信号匹配时，晶闸管控制单元（26a）向晶闸管（8）提供CLOSE信号。 当两个信号不匹配时，报警电路（42）被激活。

    Power supply apparatus for welders and method of manufacturing same
    9.
    发明授权
    Power supply apparatus for welders and method of manufacturing same 有权
    焊机电源装置及其制造方法

    公开(公告)号：US6051806A

    公开(公告)日：2000-04-18

    申请号：US236703

    申请日：1999-01-25

    申请人： Kunio Shikata ,  Masayuki Ono ,  Masao Katooka ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Atsushi Kinoshita ,  Fumi Noda ,  Hideo Ishii

    发明人： Kunio Shikata ,  Masayuki Ono ,  Masao Katooka ,  Haruo Moriguchi ,  Tetsuro Ikeda ,  Kenzo Danjo ,  Atsushi Kinoshita ,  Fumi Noda ,  Hideo Ishii

    IPC分类号： B23K9/073 ,  B23K9/095 ,  B23K9/10 ,  B23K9/12 ,  H02M9/00

    CPC分类号： B23K9/0956

    摘要： A power supply apparatus for welders includes an input-side AC-to-DC converter for converting an input commercial AC voltage into a DC voltage, which is, in turn, converted to a high-frequency voltage in an inverter. The high-frequency voltage is transformed to a high-frequency voltage having a desired magnitude in a transformer. The transformed high-frequency voltage is then converted back to a DC voltage in an output-side high-frequency-to-DC converter. The DC voltage is developed between output terminals of the power supply apparatus. A current detector detects the current flowing through the output terminals and develops a detected-current representative signal. A voltage detector detects the voltage between the output terminals and develops a detected-voltage representative signal. A CPU has three control modes and controls, in a first mode, the inverter in such a manner that the current representative signal becomes equal to a reference-current representative signal. In a second mode, the CPU activates and, then, deactivates a high-frequency generator, which provides a high-frequency voltage between the output terminals, and, thereafter, performs the first mode of control. In a third control mode, the CPU controls the inverter in such a manner that the voltage representative signal becomes equal to a reference-voltage representative signal and also controls a wire feeder for feeding a wire to be connected to one of the output terminals.

    摘要翻译： 一种用于焊接机的电源装置包括：输入侧AC-DC转换器，用于将输入的商用AC电压转换成直流电压，然后转换成逆变器中的高频电压。 在变压器中将高频电压变换成具有期望幅度的高频电压。 然后将变换的高频电压转换回输出侧高频至直流转换器中的直流电压。 在电源装置的输出端子之间产生直流电压。 电流检测器检测流过输出端子的电流并产生检测到的电流代表信号。 电压检测器检测输出端子之间的电压并产生检测到的电压代表信号。 CPU在第一模式中具有三种控制模式和控制，即逆变器使得当前代表信号变得等于参考电流代表信号。 在第二模式中，CPU激活并且然后去激活在输出端之间提供高频电压的高频发生器，之后执行第一控制模式。 在第三控制模式中，CPU以这样的方式控制逆变器，使得代表性的代表信号变得等于参考电压代表信号，并且还控制用于馈送要连接到一个输出端子的导线的送丝机。