公开(公告)号：WO2014120768A1

公开(公告)日：2014-08-07

申请号：PCT/US2014/013598

申请日：2014-01-29

Applicant: THERMAL DYNAMICS CORPORATION

Inventor： NORRIS, Stephen, W. ,  CHAMBERLIN, Roger, M. ,  SAWCHIK, Michael

IPC: H02M7/23

CPC classification number: H02M1/14 ,  H02M3/22 ,  H02M7/23

Abstract: A modular power supply is provided. The modular power supply includes multiple inverters and a controller. Each inverter is configured to receive an input voltage and provide an output to a load. The controller is configured to provide a synchronization signal to each inverter of the plurality of inverters.

Abstract translation: 提供模块化电源。 模块化电源包括多个逆变器和一个控制器。 每个逆变器配置为接收输入电压并向负载提供输出。 控制器被配置为向多个逆变器的每个逆变器提供同步信号。

公开(公告)号：WO2004022276A1

公开(公告)日：2004-03-18

申请号：PCT/US2003/027778

申请日：2003-09-04

Applicant: THERMAL DYNAMICS CORPORATION ,  NORRIS, Stephen, W. ,  CHAMBERLIN, Roger ,  MORRIE, David

Inventor： NORRIS, Stephen, W. ,  CHAMBERLIN, Roger ,  MORRIE, David

IPC: B23K9/02

CPC classification number: B23K10/006 ,  H05H1/36 ,  H05H2001/3489

Abstract: A plasma arc torch system (100) comprises a rate of change sensor (114,116) such as a dv/dt sensor for monitoring an output current or voltage signal to determined whether to close a switch (108) to re-attach a pilot arc (120) before a transferred arc becomes extinguished. The switch (108) selectively connects a tip (106) into a circuit path (124) with an electrode (104) and a power supply (102) to allow the pilot arc (120) to form between the tip (106) and the electrode (104). The .power supply (102) regulates the output current or voltage to a first level when a pilot arc is present and to a second mode when a transferred arc is present.

Abstract translation: 等离子弧焊炬系统（100）包括诸如dv / dt传感器的变化率传感器（114,116），用于监测输出电流或电压信号，以确定是否关闭开关（108）以重新连接导频电弧（108） 120），在转移的电弧熄灭之前。 开关（108）通过电极（104）和电源（102）将尖端（106）选择性地连接到电路路径（124）中，以允许先导弧（120）形成在尖端（106）和 电极（104）。 当存在导向电弧时，电源（102）将输出电流或电压调节到第一电平，并且当存在转移的电弧时将电压或电压调节到第二模式。

公开(公告)号：WO2014120766A1

公开(公告)日：2014-08-07

申请号：PCT/US2014/013594

申请日：2014-01-29

Applicant: THERMAL DYNAMICS CORPORATION

Inventor： NORRIS, Stephen, W. ,  CHAMBERLIN, Roger, M.

IPC: B23K9/10 ,  B23K11/24 ,  H02M1/42

CPC classification number: B23K9/1043 ,  B23K9/1056 ,  H02M1/4216 ,  H02M1/4266 ,  H02M7/06 ,  Y02P70/181 ,  Y02P80/112

Abstract: A power source (212) comprising a rectification circuit (220) and a first capacitor (244) connected in parallel to the rectification circuit (220) across the positive node (250) and the negative node (252). In addition, a first RC circuit is connected and parallel with the first capacitor (244) and the rectification circuit (220), across the positive node (250) and the negative node (252). The RC circuit includes a first resistor (256) and a capacitor (258). A second RC circuit may be connected parallel with the first RC circuit, and the capacitor (344)..

Abstract translation: 一个电源（212），包括整流电路（220）和与整流电路（220）并联连接在正节点（250）和负节点（252）上的第一电容器（244）。 此外，第一RC电路跨过正节点（250）和负节点（252）与第一电容器（244）和整流电路（220）并联。 RC电路包括第一电阻器（256）和电容器（258）。 第二RC电路可以与第一RC电路并联连接，并且电容器（344）..

公开(公告)号：WO2003077254A3

公开(公告)日：2003-09-18

申请号：PCT/US2003/006564

申请日：2003-03-03

Applicant: THERMAL DYNAMICS CORPORATION ,  NORRIS, Stephen, W. ,  TATHAM, David, A. ,  HEWETT, Roger, W.

Inventor： NORRIS, Stephen, W. ,  TATHAM, David, A. ,  HEWETT, Roger, W.

IPC: B23K10/00

Abstract: A solenoid control and safety circuit suitable for use in connection with contact start, plasma-arc torches. The system monitors a voltage to determine when to open an air control solenoid (622) as part of a contact starting process. If a proper voltage is sensed, a gas solenoid is opened to allow airflow to separate the contact starting elements. The system also includes a circuit (726) that monitors a gas pressure switch to determine whether sufficient pressure exists to separate the contact start elements after a contact start process has been initiated. The circuit removes power if it senses insufficient pressure. Also disclosed is a circuit (626) that monitors a differential voltage between the electrode and the tip to determine if the elements remain in contact after airflow has been provided to the torch head.

公开(公告)号：WO2002098191A1

公开(公告)日：2002-12-05

申请号：PCT/US2002/016809

申请日：2002-05-29

Applicant: THERMAL DYNAMICS CORPORATION ,  NORRIS, Stephen, W.

Inventor： NORRIS, Stephen, W.

IPC: H05H1/36

CPC classification number: B23K10/006 ,  H05H1/36 ,  H05H2001/3426

Abstract: A plasm-arc torch system, a circuit, and a method for controlling a pilot arc. A rate of change sensor, such as a dv/dt sensor, monitors the output of an error amplifier to determine whether to close a switch to re-attach a pilot arc before a transferred arc becomes extinguished. The switch selectively connects a tip into a circuit path with an electrode and a power supply to allow the pilot arc to form between the tip and the electrode. The error amplifier preferably provides an error signal for use by a pulse-width modulator for providing a current regulated power supply capability. The power supply preferably regulates the output current to a first level when a pilot arc is present, and to a second mode when a transferred arc is present. The pilot arc may also be re-attached between the tip and the electrode by use of a pilot regulator that attempts to maintain the current flowing through the tip at an intermediate level between the first level and the second level. The pilot regulator is responsive to the total current flowing through the electrode but can only control that portion of the total current that flows through the tip.

Abstract translation: 等离子体电弧割炬系统，电路和控制导频电弧的方法。 诸如dv / dt传感器的变化率传感器监测误差放大器的输出以确定在传送的电弧熄灭之前是否关闭开关以重新附接导频电弧。 开关选择性地将尖端与电极和电源连接到电路中，以允许尖端和电极之间形成引导电弧。 误差放大器优选地提供用于提供电流调节电源能力的脉冲宽度调制器使用的误差信号。 当存在导频电弧时，电源优选地将输出电流调节到第一电平，并且当存在转移的电弧时，电源被调节到第二模式。 引导电弧也可以通过使用试图将流过尖端的电流保持在第一电平和第二电平之间的中间电平的先导调节器重新连接在尖端和电极之间。 先导调节器响应于流经电极的总电流，但只能控制流过尖端的总电流的那部分。