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1. 发明授权

US06177645B1 Electric arc welder and plasma cutter 失效
标题翻译：电弧焊机和等离子切割机
公开(公告)号：US06177645B1
公开(公告)日：2001-01-23
申请号：US09432233
申请日：1999-11-03
申请人： Larry L. Church , William T. Matthews
发明人： Larry L. Church , William T. Matthews
IPC分类号： B23K900
CPC分类号： B23K10/006 , B23K9/1006 , B23K9/1043 , B23K9/1068 , B23K9/1075 , H02M1/4225 , H02M3/337 , H02M2001/007 , Y02P70/181
摘要： A single phase power supply module for electric arc welders and plasma arc cutters comprising: a single phase input stage; positive and negative output terminals; a full wave rectifier connected to the input stage for rectifying the single phase voltage at the input stage; a buck converter type power factor correcting circuit for controlling current flow from the input stage to the rectifier, which buck converter has an output capacitor regulated to an intermediate voltage in the range of 100-150 volts; and, a high speed DC to DC converter having an internal transformer coupling applying voltage across the output terminals and means for regulating the applied voltage to an output voltage in the range of 0-113 volts. The module is universal and several can be connected in parallel, in series or to switch networks to construct several welders or cutters.
摘要翻译：一种用于电弧焊机和等离子弧光刀的单相电源模块，包括：单相输入级; 正，负输出端子; 连接到输入级的全波整流器，用于整流输入级的单相电压; 用于控制从输入级到整流器的电流的降压转换器型功率因数校正电路，该降压转换器具有调节到100-150伏特范围内的中间电压的输出电容器; 以及具有在输出端子两端施加电压的内部变压器耦合器的高速DC-DC转换器，以及用于将所施加的电压调节到0-113伏范围内的输出电压的装置。该模块是通用的，并且可以并联连接多个模块，串联或切换网络以构建几个焊工或切割机。

2. 发明授权

US6023037A Electric ARC welder and plasma cutter 有权
标题翻译：电弧焊机和等离子切割机
公开(公告)号：US6023037A
公开(公告)日：2000-02-08
申请号：US186087
申请日：1998-11-05
申请人： Larry L. Church , William T. Matthews
发明人： Larry L. Church , William T. Matthews
IPC分类号： B23K9/10 , B23K10/00 , B23K9/00
CPC分类号： B23K10/006 , B23K9/1006 , B23K9/1043 , B23K9/1068 , B23K9/1075 , H02M1/4225 , H02M3/337 , H02M2001/007 , Y02P70/181
摘要： A single phase power supply module for electric arc welders and plasma arc cutters comprising: a single phase input stage; positive and negative output terminals; a full wave rectifier connected to the input stage for rectifying the single phase voltage at the input stage; a buck converter type power factor correcting circuit for controlling current flow from the input stage to the rectifier, which buck converter has an output capacitor regulated to an intermediate voltage in the range of 100-150 volts; and, a high speed DC to DC converter having an internal transformer coupling applying voltage across the output terminals and means for regulating the applied voltage to an output voltage in the range of 0-113 volts. The module is universal and several can be connected in parallel, in series or to switch networks to construct several welders or cutters.
摘要翻译：一种用于电弧焊机和等离子弧光刀的单相电源模块，包括：单相输入级; 正，负输出端子; 连接到输入级的全波整流器，用于整流输入级的单相电压; 用于控制从输入级到整流器的电流的降压转换器型功率因数校正电路，该降压转换器具有调节到100-150伏特范围内的中间电压的输出电容器; 以及具有在输出端子两端施加电压的内部变压器耦合器的高速DC-DC转换器，以及用于将所施加的电压调节到0-113伏范围内的输出电压的装置。该模块是通用的，并且可以并联连接多个模块，串联或切换网络以构建几个焊工或切割机。

3. 发明授权

US4275429A Protective relay apparatus 失效
标题翻译：保护继电器
公开(公告)号：US4275429A
公开(公告)日：1981-06-23
申请号：US84218
申请日：1979-10-12
申请人： Larry L. Church , Shan C. Sun
发明人： Larry L. Church , Shan C. Sun
IPC分类号： H02H3/28 , H02H1/00 , H02H7/26 , H02H3/00
CPC分类号： H02H1/0084 , H02H7/263
摘要： Pilot protective relay apparatus for high-voltage, three-phase alternating current transmission lines which provides the functions of an electromechanical pilot-wire protective relay, without the necessity of having a continuous, metallic conductor connected between the points to be compared. The protective relay apparatus is completely solid state, making trip decisions based upon three separate comparisons of the near and far line current conditions represented by line current derived single-phase voltage signals. The three comparisons indicate the magnitude of the phasor difference, the magnitude of the phase angle, and the relative average absolute magnitudes.
摘要翻译：用于高电压，三相交流输电线路的先导保护继电器装置，其提供机电先导线保护继电器的功能，而不需要在要比较的点之间连接连续的金属导体。保护中继装置是完全固态的，基于由线电流导出的单相电压信号表示的近线和远线电流条件的三个独立比较，进行跳闸决定。三个比较表明相量差的大小，相位角的大小以及相对的平均绝对值。

4. 发明授权

US6055161A Switching type power supply for arc welding 有权
标题翻译：电弧焊切换式电源
公开(公告)号：US6055161A
公开(公告)日：2000-04-25
申请号：US290044
申请日：1999-04-12
申请人： Larry L. Church , Lifeng Luo
发明人： Larry L. Church , Lifeng Luo
IPC分类号： H02M3/18 , H02M3/335
CPC分类号： H02M3/33523 , H02M1/34 , H02M2001/346 , Y02B70/1433 , Y02B70/1491
摘要： In a switching type power supply for use in an electric arc welder or plasma cutter, of the type having an output transformer with a primary winding in a series circuit DC source with a selected voltage and a switch, either single or tandem, with a conductive on state to pass a current pulse through the primary winding in a first electrical direction and a non-conductive off state disconnecting the DC voltage source from the winding and a large filter capacitor across the DC input voltage source, the improvement comprising: a snubber network for transferring energy due to the leakage inductance of the primary winding to the filter capacitor when the switch is shifted from the on state to the off state where the snubber network includes a storage capacitor with a diode controlled resonant charging circuit so the winding is in a tank circuit with the storage capacitor to charge the storage capacitor in a charging cycle when the switch shifts from the on state to the off state and a diode controlled discharging circuit where the storage capacitor is in series with the winding and the filter capacitor to discharge the storage capacitor into the filter capacitor when the winding reverses polarity.
摘要翻译：在用于电弧焊机或等离子切割机的开关型电源中，具有输出变压器的类型的电源，其中初级绕组具有选定电压的串联电路DC源和开关，单个或串联，具有导电在第一电气方向上通过初级绕组的电流脉冲和在直流输入电压源上断开直流电压源与绕组和大滤波电容器的非导通断开状态，改进包括：缓冲网络用于当开关从导通状态切换到关闭状态时由于初级绕组的漏电感而将能量传递到关闭状态，其中缓冲器网络包括具有二极管控制的谐振充电电路的存储电容器，使得绕组处于储能电路，当开关从导通状态切换到断开状态时，在充电循环中对存储电容器进行充电，而二极管控制放电电路，其中存储电容器与绕组和滤波电容器串联，当绕组反转极性时，将存储电容器放电到滤波电容器中。

5. 发明授权

US4293886A Network protector relay 失效
标题翻译：网络保护继电器
公开(公告)号：US4293886A
公开(公告)日：1981-10-06
申请号：US104647
申请日：1979-12-17
申请人： Larry L. Church , David R. Smith , Shan C. Sun
发明人： Larry L. Church , David R. Smith , Shan C. Sun
IPC分类号： H02H3/38 , H02H3/26
CPC分类号： H02H3/387
摘要： A network protector relay produces a close signal entirely from sequence components based on the magnitude and phase relationships between the positive sequence component of the phase-to-ground voltages on the network side of the protector and the positive sequence component of the phasing voltages. The close signal may be inhibited by either the presence of the negative sequence component of the phase-to-ground voltages on the network side of the protector or if a trip contact is closed. The trip contact will be closed under certain specified conditions which make it advantageous to prevent manual closing of the contacts.
摘要翻译：网络保护器继电器基于保护器网络侧的相对地电压的正序分量与相位电压的正序分量之间的幅度和相位关系，从序列分量完全产生闭合信号。通过存在保护器的网络侧上的相对地电压的负序分量或者如果跳闸触点闭合，可以禁止闭合信号。跳闸触点将在某些特定条件下关闭，这有利于防止触点的手动关闭。

6. 发明授权

US06504132B1 Electric arc welder for variable AC input 有权
标题翻译：电弧焊机用于可变交流输入
公开(公告)号：US06504132B1
公开(公告)日：2003-01-07
申请号：US09932685
申请日：2001-08-20
申请人： Larry L. Church
发明人： Larry L. Church
IPC分类号： B23K910
CPC分类号： B23K9/091 , B23K9/1043 , B23K9/1056
摘要： An electric arc welder with a variable AC voltage input of up to 600 VAC and a rectifier to provide a DC link, a driven high frequency boost stage with first and second leads connected to the DC link. The boost stage comprises an inductor, a first series output branch with a first primary winding connected to the first lead and a first capacitor connected to the second lead, a second series output branch with a second primary winding connected to the second lead and a second capacitor connected to the first lead and a high frequency operated switch between the leads and having an opened condition charging said capacitors by current through the primary windings in a first direction and discharging the inductor and a closed condition charging the inductor through the primary windings by current in a second direction and discharging the inductor to charge the capacitors. The switch is operated by a power factor control circuit at a frequency greater than about 18 kHz. The boost stage has an AC output stage comprising the secondary winding network of a transformer powered by current flow in the first and second primary windings. An output rectifier converts said AC output to a first DC voltage. At the final portion of the welder an output converter converts the first DC voltage to a second DC voltage connected across the arc of a welding station and having a controlled weld current or voltage.
摘要翻译：具有高达600VAC的可变AC电压输入的电弧焊机和提供DC链路的整流器，具有连接到DC链路的第一和第二引线的驱动高频增压级。升压级包括电感器，具有连接到第一引线的第一初级绕组的第一串联输出分支和连接到第二引线的第一电容器，具有连接到第二引线的第二初级绕组的第二串联输出分支，连接到第一引线的电容器和引线之间的高频操作开关，并且具有断开状态，通过在第一方向上通过初级绕组的电流对所述电容器充电，并且使电感器放电，并且通过电流对初级绕组充电电感器的闭合状态在第二方向上放电并对电容器充电。该开关由功率因数控制电路以大于约18kHz的频率操作。升压级具有AC输出级，其包括由第一和第二初级绕组中的电流驱动的变压器的次级绕组网络。输出整流器将所述AC输出转换为第一DC电压。在焊机的最后部分，输出转换器将第一直流电压转换成跨焊接站弧线并具有受控焊接电流或电压的第二直流电压。

7. 发明授权

US4380746A Pulse modulator using capacitor charging and discharging circuits 失效
标题翻译：脉冲调制器采用电容充放电电路
公开(公告)号：US4380746A
公开(公告)日：1983-04-19
申请号：US239917
申请日：1981-03-03
申请人： Shan C. Sun , Larry L. Church
发明人： Shan C. Sun , Larry L. Church
IPC分类号： H03K7/06
CPC分类号： H03K7/06
摘要： A self-starting, non-latching, pulse modulator which will function as an analog divider of first and second input quantities, or as a linear pulse period modulator responsive to one of the quantities, or as a linear pulse frequency modulator responsive to the other of the quantities, depending upon how the first and second input quantities are controlled. The first input quantity is connected to charge a capacitor. The second input quantity is compared in a first comparator with the voltage across the capacitor. A second comparator compares the voltage across the capacitor with a reference voltage. The outputs of the first and second comparators are connected, respectively, to the first and second inputs of a flip-flop which has its first output connected to a monostable multivibrator. The second output of the flip-flop and the output of the monostable multivibrator are both connected so that either one can momentarily activate a discharge circuit for discharging the capacitor.
摘要翻译：作为第一和第二输入量的模拟分频器的自启动，非锁存脉冲调制器，或响应于其中一个量的线性脉冲周期调制器，或响应于另一个的线性脉冲频率调制器取决于第一和第二输入量如何被控制。连接第一个输入量来为电容充电。在第一比较器中将第二输入量与电容器两端的电压进行比较。第二个比较器将电容器两端的电压与参考电压进行比较。第一和第二比较器的输出分别连接到触发器的第一和第二输入，其触发器的第一输出连接到单稳态多谐振荡器。触发器的第二输出和单稳态多谐振荡器的输出都被连接，使得任一个可以瞬间激活用于放电电容器的放电电路。

8. 发明授权

US4208687A Protective relay apparatus 失效
标题翻译：保护继电器
公开(公告)号：US4208687A
公开(公告)日：1980-06-17
申请号：US959045
申请日：1978-11-08
申请人： Shan C. Sun , Larry L. Church
发明人： Shan C. Sun , Larry L. Church
IPC分类号： H02H3/46 , H02H7/06
CPC分类号： H02H3/46 , H02H7/06
摘要： Protective relay apparatus which includes monitoring and detecting functions related to subsynchronous currents in a three-phase electrical power system. The monitoring function provides signals related to the positive sequence component of any subsynchronous current flowing at a monitored subsynchronous frequency. The detecting function is responsive to the signals provided by the monitoring function, distinguishing between subsynchronous currents due to self-excited oscillations, and those due to transient oscillations, to provide a timely trip signal for a circuit breaker in either instance.
摘要翻译：保护继电器装置，其包括监视和检测与三相电力系统中的次同步电流相关的功能。监控功能提供与在受监视的次同步频率下流动的任何次同步电流的正序分量相关的信号。检测功能响应于由监视功能提供的信号，区分由于自激振荡引起的次同步电流以及由于瞬态振荡造成的次同步电流，从而在任一情况下为断路器提供及时的跳闸信号。

9. 发明授权

US4173039A Current based power supply 失效
标题翻译：电流供电
公开(公告)号：US4173039A
公开(公告)日：1979-10-30
申请号：US906221
申请日：1978-05-15
申请人： Shan C. Sun , Larry L. Church
发明人： Shan C. Sun , Larry L. Church
IPC分类号： H02M7/155
CPC分类号： H02M7/1557
摘要： Multi-stage current operated power supply including linear transformer coupled to AC power lines and provides positive and negative regulated output progressively charged during each half cycle of input current while maintaining ampere-turns balance.
摘要翻译：多级电流操作电源，包括耦合到交流电源线的线性变压器，并在输入电流的每个半周期期间提供正负调节输出，同时保持安匝数平衡。

10. 发明申请

US20150076121A1 Two-Stage Switch-Mode Power Supply for Drawn-Arc Stud Welding 审中-公开
标题翻译：拉拔弧焊两级开关电源
公开(公告)号：US20150076121A1
公开(公告)日：2015-03-19
申请号：US14541853
申请日：2014-11-14
申请人： Jeffrey Krupp , Larry L. Church , Scott J. Schraff
发明人： Jeffrey Krupp , Larry L. Church , Scott J. Schraff
IPC分类号： B23K9/10 , B23K9/20
CPC分类号： B23K9/1043 , B23K9/20
摘要： A drawn arc welding device includes a welding tool, and an energy storage device coupled to a power source. A charging circuit is connected to the energy storage device replenishing the storage device. A discharge circuit is connected to the welding tool and energy storage device. The discharge circuit regulates and adjusts a welding current of the welding tool to a specified amount. Also disclosed is a process that includes charging the energy storage device, actuating the welding tool, energizing a pilot arc current, lifting the weld stud off a workpiece to draw the pilot arc, energizing a welding arc wherein the discharge circuit regulates a welding current of the welding tool to a specified amount, and plunging the weld stud into the workpiece and turning off the discharge circuit.
摘要翻译：拉弧式焊接装置包括焊接工具和耦合到电源的能量存储装置。充电电路连接到补充存储装置的能量存储装置。放电电路连接到焊接工具和储能装置。放电电路调整焊接工具的焊接电流至规定量。还公开了一种方法，其包括对能量存储装置进行充电，致动焊接工具，激励先导电弧电流，将焊接支柱从工件上提起以画出先导弧，激励焊接电弧，其中放电电路调节焊接电流焊接工具达到规定的量，并将焊接螺栓插入工件并关闭放电回路。

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