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21. 发明授权

US5930122A Inverter and DC power supply apparatus with inverter used therein 有权
标题翻译：其中使用逆变器和直流电源设备
公开(公告)号：US5930122A
公开(公告)日：1999-07-27
申请号：US152017
申请日：1998-09-11
申请人： Haruo Moriguchi , Toru Arai , Toshikazu Fujiyoshi , Masayuki Ono , Satoshi Hamada , Hideo Ishii
发明人： Haruo Moriguchi , Toru Arai , Toshikazu Fujiyoshi , Masayuki Ono , Satoshi Hamada , Hideo Ishii
IPC分类号： H02M1/10 , H02M3/28 , H02M3/335 , H02M7/48 , H02M7/5387 , H02M3/24
CPC分类号： H02M3/285 , H02M1/10 , H02M3/33569 , H02M2001/0074
摘要： An inverter includes a series circuit of two current conducting units connected between two input terminals adapted to be connected to a DC power supply. Two first capacitors are connected in series between the two input terminals. A primary winding of a transformer is connected between the junction of the current conducting units and the junction of the first capacitors. Each of the current conducting units includes a parallel circuit of an IGBT, a diode and a second capacitor. The IGBT has a collector, an emitter and a gate and is rendered conductive when a control signal is applied to the gate while a voltage of a predetermined polarity is applied between the collector and the emitter. The diode is connected in inverse parallel with the IGBT. An inverter control circuit applies alternately the control signals to the respective IGBTs with a predetermined quiescent period disposed between the respective control signals applied.
摘要翻译：逆变器包括连接在适于连接到直流电源的两个输入端之间的两个导电单元的串联电路。两个第一电容器串联连接在两个输入端子之间。变压器的初级绕组连接在电流传导单元的接头和第一电容器的接点之间。每个电流传导单元包括IGBT，二极管和第二电容器的并联电路。 IGBT具有集电极，发射极和栅极，并且当在集电极和发射极之间施加预定极性的电压时，控制信号施加到栅极时导通。二极管与IGBT反向并联连接。逆变器控制电路将控制信号交替地施加到各个IGBT，其中预定的静态周期设置在施加的各个控制信号之间。

22. 发明授权

US06194681B1 Power supply apparatus for arc-utilizing machine 有权
标题翻译：电弧利用机供电装置
公开(公告)号：US06194681B1
公开(公告)日：2001-02-27
申请号：US09498077
申请日：2000-02-04
申请人： Haruo Moriguchi , Tetsuro Ikeda , Kenzo Danjou , Atsushi Kinoshita
发明人： Haruo Moriguchi , Tetsuro Ikeda , Kenzo Danjou , Atsushi Kinoshita
IPC分类号： B23K1000
CPC分类号： B23K9/1043 , B23K9/091 , B23K9/1006
摘要： A DC voltage resulting from rectifying and smoothing a commercial AC voltage is converted into a high-frequency voltage in an inverter which is operated in response to the closure of a start switch. A transformer transforms the high-frequency voltage, and the voltage-transformed high-frequency voltage is converted to a DC voltage by a rectifier and reactor for application between a torch and a workpiece with a gap disposed therebetween. In response to the closure of the start switch, an igniter operated from the voltage-transformed high-frequency voltage is enabled by an igniter driver to thereby apply a high-frequency voltage between the torch and the workpiece to generate an arc therebetween. A current detector detects current attributable to the arcing. A timer starts operating upon closure of the start switch and causes a disabling commander to disable the inverter when no current is detected by the current detector during a time period longer than a period required for an arc to be generated in the gap. This interrupts the supply of the operating voltage for the igniter, and the igniter stops operating.
摘要翻译：在商业交流电压的整流和平滑中产生的直流电压被转换成响应于启动开关闭合而操作的逆变器中的高频电压。变压器转换高频电压，并且通过整流器和电抗器将电压变换的高频电压转换为直流电压，以在喷枪和工件之间施加间隙，间隙设置在其间。响应于启动开关的闭合，由电压变换的高频电压操作的点火器由点火器驱动器实现，从而在割炬和工件之间施加高频电压，以在它们之间产生电弧。电流检测器检测归因于电弧的电流。定时器在起动开关闭合时开始操作，并且当电流检测器没有检测到电流在比在间隙中产生电弧所需的时间段更长的时间段内使得禁用指令器禁用逆变器。这将中断点火器的工作电压供应，点火器停止工作。

23. 发明授权

US06278080B1 Power supply apparatus 有权
标题翻译：电源装置
公开(公告)号：US06278080B1
公开(公告)日：2001-08-21
申请号：US09440053
申请日：1999-11-18
申请人： Haruo Moriguchi , Tetsuro Ikeda , Atsushi Kinoshita , Hideo Ishii
发明人： Haruo Moriguchi , Tetsuro Ikeda , Atsushi Kinoshita , Hideo Ishii
IPC分类号： B23K910
CPC分类号： H05K7/20209 , B23K9/1056 , H02M1/36 , H02M3/3376 , H02M2001/008
摘要： A power supply apparatus includes a power supply unit disposed within a casing. The power supply unit includes power semiconductor devices. A fan is provided in the casing for cooling the power semiconductor devices. The power supply unit is operated in a plurality of contiguous cycles each including a running and pausing modes of operation. Each cycle lasting a relatively short time period. The power supply unit operates in the running mode and the pausing mode, respectively in response to the closing and opening of a start switch. In association with the closing and opening of the start switch, a switch for the cooling fan causes the fan to rotate and stop, respectively, which results in minimizing the difference between the highest and lowest temperatures of the power semiconductor devices so that the lifetime of the power semiconductor devices can be prolonged.
摘要翻译：电源装置包括设置在壳体内的电源单元。电源单元包括功率半导体器件。壳体中设置有用于冷却功率半导体器件的风扇。电源单元以多个连续周期操作，每个循环包括运行和暂停操作模式。每个周期的持续时间相对较短。电源单元响应于启动开关的闭合和打开而分别在运行模式和暂停模式下操作。与启动开关的关闭和打开相关联，用于冷却风扇的开关分别使风扇旋转和停止，这导致功率半导体器件的最高和最低温度之间的差异最小化，使得寿命可以延长功率半导体器件。

24. 发明授权

US06498320B2 Power supply apparatus for arc-utilizing apparatus 有权
标题翻译：电弧利用装置用电源装置
公开(公告)号：US06498320B2
公开(公告)日：2002-12-24
申请号：US09999023
申请日：2001-11-15
申请人： Haruo Moriguchi , Tetsuro Ikeda , Hideo Ishii
发明人： Haruo Moriguchi , Tetsuro Ikeda , Hideo Ishii
IPC分类号： B23K910
CPC分类号： B23K9/1056
摘要： One of commercial AC voltages is coupled to power supply terminals from one of commercial AC power supplies. The AC power supplies belong to either a first group providing higher voltages or a second group providing lower voltages. A rectifier rectifies the AC voltage applied to the power supply terminals, and a rectified voltage is developed between two rectifier output terminals. A switching unit operates to connect voltage-boosting converters selectively in series and in parallel between the rectifier output terminals. Inverters are connected in the output sides of and in association with the respective voltage-boosting converters for converting DC voltages from the associated voltage-boosting converters to high-frequency voltages. The high-frequency voltages are voltage-transformed by associated voltage-transformers, and the voltage-transformed high-frequency voltages are converted into a DC voltage by a rectifier circuit and a reactor. The DC voltage is developed between output terminals of the apparatus. A switching control unit controls the switching unit so as to connect the voltage-boosting converters in series between the rectifier output terminals when a commercial AC power supply of the first group is connected to the power supply terminals, while connecting the voltage-boosting converters in parallel between the rectifier output terminals when a commercial AC power supply of the second group is connected to the power supply terminals.
摘要翻译：商用交流电压之一与商用交流电源之一的电源端子耦合。交流电源属于提供较高电压的第一组或提供较低电压的第二组。整流器对施加到电源端子的交流电压进行整流，并在两个整流器输出端子之间产生整流电压。开关单元用于将升压转换器选择性地串联并联在整流器输出端子之间。逆变器连接在相应的升压转换器的输出侧并与之相关联，用于将来自相关升压转换器的直流电压转换成高频电压。高压电压由相关的电压互感器进行电压转换，并且通过整流电路和电抗器将电压变换的高频电压转换成直流电压。在设备的输出端之间产生直流电压。开关控制单元控制开关单元，以将第一组的商用AC电源连接到电源端子时将整流器输出端子之间的升压转换器串联连接，同时将升压转换器当第二组的商用交流电源连接到电源端子时，整流器输出端子之间并联。

25. 发明授权

US06483687B2 Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：US06483687B2
公开(公告)日：2002-11-19
申请号：US09894816
申请日：2001-06-28
申请人： Masao Katooka , Toru Arai , Haruo Moriguchi
发明人： Masao Katooka , Toru Arai , Haruo Moriguchi
IPC分类号： H01H4700
CPC分类号： B23K37/006 , B23K9/10 , B23K9/1006
摘要： A voltage from an AC power source is converted into a DC voltage in an input-side rectifier-smoother circuit. The DC voltage is then converted into a high-frequency voltage in an inverter, and the resulting high-frequency voltage is voltage-transformed in a transformer. The voltage-transformed high-frequency voltage is converted into a DC voltage in an output-side rectifier-smoother circuit, which is applied via output terminals to a load. The input-side and output-side rectifier-smoother circuits, the inverter and the transformer are enclosed in a casing having a plastic panel. The output terminal of the apparatus is mounted on the plastic panel. When a temperature sensing unit with a temperature sensor disposed on the panel near the output terminal senses that the temperature of the panel has risen above a predetermined temperature, which is lower than the heat deformation temperature of the panel, a gate signal ON-OFF circuit prevents a gate signal from a gate signal generating circuit from being coupled to the inverter. The gate signal ON-OFF circuit permits the gate signal to be coupled to the inverter when the temperature sensing unit senses that the temperature of the panel has decreased below the predetermined temperature.
摘要翻译：来自交流电源的电压在输入侧整流器平滑电路中被转换成直流电压。然后将直流电压转换为逆变器中的高频电压，并将所得到的高频电压在变压器中进行电压变换。电压变换的高频电压在输出侧整流器平滑电路中被转换为直流电压，该电路通过输出端施加到负载。输入侧和输出侧整流器更平滑电路，逆变器和变压器被封装在具有塑料面板的壳体中。设备的输出端子安装在塑料面板上。当在输出端子附近设置有温度传感器的温度感测单元感测到面板的温度升高到低于面板的热变形温度的预定温度时，门信号ON-OFF电路防止来自门信号发生电路的门信号被耦合到逆变器。当温度感测单元感测到面板的温度降低到预定温度以下时，门信号ON-OFF电路允许栅极信号耦合到逆变器。

26. 发明授权

US5825642A Power supply apparatus 失效
标题翻译：电源设备
公开(公告)号：US5825642A
公开(公告)日：1998-10-20
申请号：US863137
申请日：1997-05-27
申请人： Hideo Ishii , Haruo Moriguchi , Nathaniel S. Hansen , Michael R. Dumont
发明人： Hideo Ishii , Haruo Moriguchi , Nathaniel S. Hansen , Michael R. Dumont
IPC分类号： F04D27/00 , B23K9/10 , G05D23/00 , H02M3/28 , H05K7/20 , H02M1/00
CPC分类号： H05K7/20209 , H02M3/28
摘要： A power supply apparatus includes a housing containing therein a component which generates heat when operating, a fan for cooling the heat-generating component, and a driving unit for driving the fan. The housing also contains therein a temperature detector for detecting the temperature in the housing and providing a detected-temperature representing signal. In response to the detected-temperature representing signal, a control unit provides the driving unit with a control signal to change the rotation speed of the fan.
摘要翻译：电源装置包括壳体，其中容纳有操作时产生热量的部件，用于冷却发热部件的风扇和用于驱动风扇的驱动单元。壳体还包含温度检测器，用于检测壳体中的温度并提供检测温度表示信号。响应于检测到的温度表示信号，控制单元向驱动单元提供控制信号以改变风扇的转速。

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