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1. 发明授权

US5771163A AC-DC converter apparatus 失效
标题翻译： AC-DC转换器装置
公开(公告)号：US5771163A
公开(公告)日：1998-06-23
申请号：US752302
申请日：1996-11-19
申请人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Takashi Hashimoto , Kunio Karino
发明人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Takashi Hashimoto , Kunio Karino
IPC分类号： H02M3/28 , H02M3/335 , H02M7/00 , H02M3/24
CPC分类号： H02M3/285 , H02M3/33569 , H02M2001/0074
摘要： A DC power supply apparatus includes a rectifier circuit for rectifying an input AC voltage to develop a rectified voltage between two output terminals thereof. First and second smoothing capacitors are connected in series between the output terminals of the rectifier circuit. First and second voltages developed across the first and second capacitors are applied to first and second inverters which convert the applied voltages to high-frequency voltages, which, in turn, are applied to a transformer. The transformer develops a transformed high-frequency voltage which is converted to a DC voltage by a converter. A voltage detector detects the first and second voltages, and the detected first and second voltages are compared in a microprocessor. An inverter control circuit controls the first and second inverters in accordance with the result of comparison, in a sense to make the voltages across the first and second smoothing capacitors equal.
摘要翻译：直流电源装置包括整流电路，用于整流输入AC电压，以在其两个输出端之间产生整流电压。第一和第二平滑电容器串联连接在整流电路的输出端子之间。跨越第一和第二电容器产生的第一和第二电压被施加到第一和第二逆变器，其将所施加的电压转换成高频电压，其又被施加到变压器。变压器开发出转换后的高频电压，通过转换器转换为直流电压。电压检测器检测第一和第二电压，并且在微处理器中比较所检测到的第一和第二电压。在使得第一和第二平滑电容器两端的电压相等的意义上，逆变器控制电路根据比较结果来控制第一和第二逆变器。

2. 发明授权

US5877952A Power supply apparatus with initial arcing sustaining circuit 失效
标题翻译：具有初始电弧持续电路的电源装置
公开(公告)号：US5877952A
公开(公告)日：1999-03-02
申请号：US954816
申请日：1997-10-21
申请人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Atsushi Kinoshita , Takashi Hashimoto
发明人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Atsushi Kinoshita , Takashi Hashimoto
IPC分类号： B23K9/067 , B23K9/073 , H02M3/28 , H02M9/00 , H02M7/00
CPC分类号： B23K9/0678
摘要： Power supply apparatus includes a converter which converts a commercial AC voltage into a DC voltage. An inverter converts the DC voltage into a high frequency voltage. The high frequency voltage is voltage-transformed by a transformer, and then rectified and smoothed by a rectifier and a smoothing reactor into a DC voltage. This DC voltage is applied between a workpiece and a torch. A high frequency voltage generator generates a high frequency voltage and applies it to a primary winding of a coupling transformer. A boosted high frequency voltage is induced in a first secondary winding and applied between the workpiece and the torch, so that arcing is initiated. The coupling transformer includes a second secondary winding in which another high frequency voltage is induced. The high frequency voltage induced in the second secondary winding is converted into a DC voltage by a diode and a smoothing capacitor for application between the workpiece and the torch, so that the arcing is sustained.
摘要翻译：电源装置包括将商用AC电压转换成DC电压的转换器。逆变器将直流电压转换成高频电压。高频电压由变压器进行电压转换，然后由整流器和平滑电抗器整流并平滑成直流电压。该直流电压施加在工件和割炬之间。高频电压发生器产生高频电压并将其施加到耦合变压器的初级绕组。在第一次级绕组中感应出升高的高频电压，并施加在工件和割炬之间，从而启动电弧。耦合变压器包括其中引入另一高频电压的第二次级绕组。在第二次级绕组中感应的高频电压通过二极管和平滑电容器转换成直流电压，用于工件和焊炬之间的应用，从而保持电弧。

3. 发明授权

US5751568A Power supply apparatus for arc-utilizing equipment 失效
标题翻译：电弧利用设备的电源装置
公开(公告)号：US5751568A
公开(公告)日：1998-05-12
申请号：US758691
申请日：1996-12-03
申请人： Kenzo Danjo , Atsushi Kinoshita , Shigeru Okamoto , Haruo Moriguchi , Takashi Hashimoto
发明人： Kenzo Danjo , Atsushi Kinoshita , Shigeru Okamoto , Haruo Moriguchi , Takashi Hashimoto
IPC分类号： B23K9/10 , H02M7/48 , H02M3/335 , H23K9/095
CPC分类号： B23K9/1056 , H02M7/48
摘要： A power supply apparatus for arc-utilizing equipment includes a first converter for converting a received AC voltage to a DC voltage. An inverter converts the DC voltage to a high-frequency voltage, which is applied to a voltage-transformer with primary and second windings. A voltage-transformed high-frequency voltage induced in the secondary winding is converted to a DC voltage in a second converter, which is developed between two output terminals. The respective ones of the two output terminals are connected to a torch electrode of the arc-utilizing equipment and a workpiece. A bypass capacitor and a high-frequency voltage generator circuit are serially connected between the two output terminals. A control circuit controls the high-frequency voltage generator circuit and the inverter circuit. The bypass capacitor is connected directly between one of the two output terminals and the high-frequency voltage generator circuit.
摘要翻译：用于电弧利用设备的电源装置包括用于将接收的AC电压转换为DC电压的第一转换器。逆变器将直流电压转换为施加到具有初级和第二绕组的电压互感器的高频电压。在次级绕组中感应的电压变换的高频电压被转换成在两个输出端之间产生的第二转换器中的直流电压。两个输出端子中的相应的端子连接到电弧利用设备的炬电极和工件。旁路电容器和高频电压发生器电路串联连接在两个输出端子之间。控制电路控制高频电压发生器电路和逆变器电路。旁路电容器直接连接在两个输出端子之一和高频电压发生器电路之间。

4. 发明授权

US5864110A Power supply apparatus for plasma arc utilizing equipment 失效
标题翻译：等离子弧利用设备的供电装置
公开(公告)号：US5864110A
公开(公告)日：1999-01-26
申请号：US968054
申请日：1997-11-10
申请人： Haruo Moriguchi , Kenzo Danjo , Takashi Hashimoto
发明人： Haruo Moriguchi , Kenzo Danjo , Takashi Hashimoto
IPC分类号： B23K9/073 , B23K10/00 , H02M9/00
CPC分类号： B23K10/006
摘要： A power supply apparatus for a plasma arc utilizing equipment providing an output current nearly equal to an input current includes a first converter for converting an AC voltage to a DC voltage. The DC voltage is converted to a high frequency voltage by an inverter. The output of the inverter is converted through a second converter to a DC voltage which is applied between a torch and a workpiece. A current detector detects an output current flowing between the second converter and the workpiece. A voltage detector detects an output voltage between the torch and the workpiece. A multiplier multiplies the output current and the output voltage to provide a signal representative of an output power. A comparator compares the output power representative signal with a first preset value. A signal from the current detector is applied to an error amplifier when the output power representative signal is smaller than the first preset value, and, otherwise, the output power representative signal is applied to the error amplifier. The error amplifier controls the inverter such that the signal applied to the error amplifier can be equal to a second preset value set by a setting device.
摘要翻译：一种用于等离子体电弧利用设备提供几乎等于输入电流的输出电流的电源装置包括用于将AC电压转换为DC电压的第一转换器。直流电压由逆变器转换成高频电压。逆变器的输出通过第二转换器转换为施加在割炬和工件之间的直流电压。电流检测器检测在第二转换器和工件之间流动的输出电流。电压检测器检测割炬和工件之间的输出电压。乘法器将输出电流和输出电压相乘以提供表示输出功率的信号。比较器将输出功率代表信号与第一预设值进行比较。当输出功率代表信号小于第一预设值时，来自电流检测器的信号被施加到误差放大器，否则输出功率代表信号被施加到误差放大器。误差放大器控制逆变器，使得施加到误差放大器的信号可以等于由设置装置设置的第二预设值。

5. 发明授权

US5917711A DC power supply apparatus 有权
标题翻译：直流电源装置
公开(公告)号：US5917711A
公开(公告)日：1999-06-29
申请号：US198420
申请日：1998-11-24
申请人： Kunio Shikata , Haruo Moriguchi , Tetsuro Ikeda , Kenzo Danjo , Takeshi Omura , Hideo Ishii
发明人： Kunio Shikata , Haruo Moriguchi , Tetsuro Ikeda , Kenzo Danjo , Takeshi Omura , Hideo Ishii
IPC分类号： H05B7/18 , B23K9/073 , H02M3/155 , H02M3/28 , H02M3/335 , H02M7/12 , H02M7/217 , H02M9/00
CPC分类号： H02M3/33569 , H02M2001/0009
摘要： DC power supply apparatus includes an input-side rectifier for converting an AC signal from an AC power supply into a DC signal. A DC-to-high-frequency converter converts the DC signal into a high frequency signal in response to a control signal from a control unit. An output-side rectifier converts the high frequency signal into a DC signal and applies it to a load. An input current detector detects an input current flowing through the input-side rectifier and generates a signal representative of the input current. A load current detector detects a load current flowing through the load and generates a signal representative of the load current. The control unit receives the input-current and load-current representative signals, a reference input current signal and a reference load current signal, and provides the DC-to-high-frequency converter with the control signal such that the input-current representative signal can be equal to the reference input current signal and the load-current representative signal can be equal to the reference load current signal.
摘要翻译：直流电源装置包括用于将来自AC电源的AC信号转换为DC信号的输入侧整流器。 DC到高频转换器响应于来自控制单元的控制信号将DC信号转换成高频信号。输出侧整流器将高频信号转换为直流信号并将其施加到负载。输入电流检测器检测流过输入侧整流器的输入电流并产生表示输入电流的信号。负载电流检测器检测流过负载的负载电流并产生代表负载电流的信号。控制单元接收输入电流和负载电流代表信号，参考输入电流信号和参考负载电流信号，并向DC到高频转换器提供控制信号，使得输入电流代表信号可以等于参考输入电流信号，负载电流代表信号可以等于参考负载电流信号。

6. 发明授权

US5306894A Consumable electrode type D.C. arc welder 失效
标题翻译：消耗电极型D.C.电弧焊机
公开(公告)号：US5306894A
公开(公告)日：1994-04-26
申请号：US25775
申请日：1993-03-03
申请人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Toshikazu Fujiyoshi , Masahiro Aoyama , Kunio Karino
发明人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Toshikazu Fujiyoshi , Masahiro Aoyama , Kunio Karino
IPC分类号： B23K9/073 , B23K9/10 , G05F1/08 , H02M9/00
CPC分类号： B23K9/1056 , G05F1/08
摘要： An invertor controlled D.C. arc welder of consumable electrode type which is arranged to rectify an a.c. power from a commercial power supply, convert it into a high frequency a.c. power by an invertor, rectify it again to obtain a d.c. power output for welding and stabilize the output voltage by feedback control of the invertor based upon the output voltage and provided with means for discriminating shorting and arcing periods of its welding load from the output voltage and additionally controlling the invertor based upon a resultant discrimination signal to raise the output voltage during the early time of the arcing period, thereby preventing defective welding due to insufficient output current. This invention is especially, effective for supplementing such insufficient output current as an aftereffect of insufficient output power during the shortening period in such welder which is provided with means for reducing the output voltage during the shortening period to prevent generation of undesirable spattering.
摘要翻译：一种易损电极类型的逆变器控制直流电弧焊机，其设置为对一个直流电源进行整流。从商用电源供电，将其转换成高频率。权力由逆变器，再次纠正获得一个d.c. 用于焊接的功率输出并且通过基于输出电压的逆变器的反馈控制来稳定输出电压，并且具有用于区分其焊接负载的短路和电弧周期与输出电压的装置，并且基于所得到的鉴别信号来控制逆变器在电弧期的早期阶段提高输出电压，防止由于输出电流不足导致的焊接不良。本发明特别有效地补充这种不足的输出电流，作为在这种焊接机的缩短期间输出功率不足的后果，其具有用于在缩短期间减小输出电压的装置，以防止产生不期望的飞溅。

7. 发明授权

US5760372A Arc welder 失效
标题翻译：弧焊机
公开(公告)号：US5760372A
公开(公告)日：1998-06-02
申请号：US669993
申请日：1996-06-21
申请人： Kunio Karino , Haruo Moriguchi , Shigeru Okamoto , Kenzo Danjo , Atushi Kinoshita , Toshikazu Fujiyoshi
发明人： Kunio Karino , Haruo Moriguchi , Shigeru Okamoto , Kenzo Danjo , Atushi Kinoshita , Toshikazu Fujiyoshi
IPC分类号： B23K9/067 , B23K9/073 , B23K9/095 , B23K9/06
CPC分类号： B23K9/0956
摘要： An arc welder includes an inverter for converting a DC voltage to a RF voltage which, then, is rectified by a rectifier. The output of the rectifier is smoothed by a DC reactor. A RF generator provides RF current to flow between a workpiece and a main electrode of the welder forming a welder load, which initiates arcing between the workpiece and the main electrode. Initiation of arcing causes output current from the DC reactor to be supplied to the welder load, so that steady-state arcing is established. The DC reactor has a relatively small inductance which permit the output current from the DC reactor to reach a value required for establishing the steady-state arcing within a time period during which the RF generator provides RF current. The RF voltage from the inverter has a relatively high frequency so that the output current from the DC reactor can sustain the steady-state arcing.
摘要翻译：电弧焊机包括用于将DC电压转换成RF电压的逆变器，然后由整流器整流。整流器的输出由直流电抗器平滑。 RF发生器提供RF电流以在焊接工件的工件和主电极之间流动，形成焊接负载，其启动工件和主电极之间的电弧。引起电弧会使直流电抗器的输出电流提供给焊机负载，从而建立稳态电弧。 DC电抗器具有相对小的电感，其允许来自DC电抗器的输出电流达到在RF发生器提供RF电流的时间段内建立稳态电弧所需的值。来自逆变器的RF电压具有相对高的频率，使得来自DC电抗器的输出电流可以维持稳态电弧。

8. 发明授权

US5457300A Consumable electrode DC arc welder 失效
标题翻译：消弧电极直流电弧焊机
公开(公告)号：US5457300A
公开(公告)日：1995-10-10
申请号：US285002
申请日：1994-08-02
申请人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
发明人： Kunio Karino , Haruo Moriguchi , Toshikazu Fujiyoshi , Kenzo Danjo , Atsushi Kinoshita
IPC分类号： B23K9/073 , B23K9/095 , H02M7/537 , H02M9/00
CPC分类号： B23K9/0956
摘要： An inverter controlled DC arc welder of consumable electrode type includes an input rectifier for rectifying AC input power, an inverter for converting the rectifier output to high frequency AC power, an output transformer for stepping down the inverter output voltage, and an output rectifier for rectifying the transformer output voltage to provide a DC output voltage to be applied to a welder load. The welder further includes means for detecting current flowing through the welder load to produce a detection signal, a differentiator circuit for differentiating the detection signal, and correction means for correcting a predetermined reference voltage in accordance with the differentiator output voltage. Feedback control means controls the inverter in accordance with the difference between the transformer output and the corrected reference voltage.
摘要翻译：一种易损电极类型的逆变器控制直流电弧焊机，包括用于整流交流输入电源的输入整流器，用于将整流器输出转换为高频交流电的逆变器，用于降低逆变器输出电压的输出变压器，以及用于整流的输出整流器变压器输出电压提供要施加到焊机负载的直流输出电压。焊机还包括用于检测流过焊机负载的电流以产生检测信号的装置，用于区分检测信号的微分电路和用于根据微分器输出电压校正预定参考电压的校正装置。反馈控制装置根据变压器输出与校正参考电压之间的差异来控制变频器。

9. 发明授权

US5272314A Consumable electrode type d.c. arc welder 失效
标题翻译：消耗电极类型直流电弧焊机
公开(公告)号：US5272314A
公开(公告)日：1993-12-21
申请号：US991436
申请日：1992-12-16
申请人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Masahiro Aoyama , Karino Kunio
发明人： Haruo Moriguchi , Tetsurou Ikeda , Kenzo Danjo , Masahiro Aoyama , Karino Kunio
IPC分类号： B23K9/073 , B23K9/095 , G05F1/08 , H02M9/00 , B23K9/10
CPC分类号： G05F1/08 , B23K9/0731 , B23K9/0956
摘要： A consumable electrode type d.c. arc welder including an invertor, which is arranged to rectify an a.c. power from a power supply, once convert a resultant d.c. power into a high frequency a.c. power by the invertor and again rectify it to obtain a d.c. power for welding, and provided with means for detecting a current flowing through its welding load to certainly discriminate shortening and arcing states between a welded base material and a welding electrode rod and controlling the invertor with a resultant discrimination signal to reduce its output voltage during the shortening period, thereby preventing spattering produced by an over-current.
摘要翻译：消耗电极类型直流电弧焊机包括一个逆变器，它被安排来纠正一个等来自电源的电源，一旦转换成一个电源。电力进入高频率a.c. 权力由逆变器再次纠正以获得直流。并且具有用于检测流过其焊接负载的电流的装置，以确定地区分焊接的基底材料和焊接电极棒之间的起酥油状态和控制逆变器的结果，从而减小其在缩短时间，从而防止由过电流产生的飞溅。

10. 发明授权

US5942139A Consumable electrode DC arc welder 失效
标题翻译：消弧电极直流电弧焊机
公开(公告)号：US5942139A
公开(公告)日：1999-08-24
申请号：US009613
申请日：1998-01-20
申请人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Atsushi Kinoshita
发明人： Haruo Moriguchi , Kenzo Danjo , Shigeru Okamoto , Atsushi Kinoshita
IPC分类号： B23K9/173 , B23K9/073 , B23K9/095 , B23K9/10 , H02M9/00
CPC分类号： B23K9/1043 , B23K9/0956
摘要： DC power from a smoothing capacitor is converted into high frequency power by an inverter, and then lowered by an output transformer. The lowered high frequency power is converted into DC power by an output rectifier and a DC reactor, and then supplied to a load. The load is short-circuited and then opened to initiate arcing. The short-circuiting and the arcing alternate. An auxiliary rectifier provides a load-voltage representative signal, and a current detector detects a load current. A load-current representative signal is differentiated by a differentiation circuit. The signals from the auxiliary rectifier, the current detector and the differentiation circuit, and a reference signal are applied to an operational amplifier. A control circuit controls the inverter such that the output of the operational amplifier can be zero. An integration circuit receives at least the load-voltage representative signal to detect a period of a cycle consisting of the arcing and the short-circuiting and provide an operation-cycle-period representative signal to the operational amplifier.
摘要翻译：来自平滑电容器的直流电力由逆变器转换为高频功率，然后由输出变压器降低。降低的高频功率由输出整流器和直流电抗器转换为直流电力，然后提供给负载。负载短路，然后打开以启动电弧。短路和电弧交替。辅助整流器提供负载电压代表信号，电流检测器检测负载电流。负载电流代表信号由微分电路区分。来自辅助整流器，电流检测器和微分电路的信号以及参考信号被施加到运算放大器。控制电路控制逆变器，使得运算放大器的输出可以为零。积分电路至少接收负载电压代表信号，以检测由电弧和短路组成的周期的周期，并向运算放大器提供操作周期代表信号。

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