| Patents for H02M 9 - Conversion of dc or ac input power into surge output power (1,495) |
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| 12/02/2004 | DE102004017495A1 Zündanlage für eine Brennkraftmaschine und zugehörige Zündvorrichtung Ignition system for an internal combustion engine and related igniter |
| 12/01/2004 | CN1177665C Welder with inputs by engine power supply and public power supply and method thereof |
| 11/25/2004 | US20040233682 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 11/23/2004 | CA2319933C Electric arc welder with a plurality of power supplies |
| 11/10/2004 | EP1040539B1 High pulse rate pulse power system |
| 11/10/2004 | EP0809885B1 Circuit configuration for feeding a pulse output stage |
| 11/09/2004 | US6815640 Apparatus, system and method to facilitate reconfigurable welding power supply |
| 11/09/2004 | US6815639 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 11/09/2004 | US6814066 Internal combustion engine ignition device and igniter for same |
| 11/03/2004 | EP1383901B1 Circuit arrangement for injecting nucleic acids and other biologically active molecules into the nucleus of higher eucaryontic cells using electrical current |
| 11/02/2004 | US6813538 Welding system |
| 10/27/2004 | CN1173471C High-voltage pulse power supply of pulse corona plasma for desulfuriznig flue gas |
| 10/26/2004 | CA2377266C System and method for controlling an electric arc welder |
| 10/21/2004 | US20040206736 Arc welder |
| 10/14/2004 | US20040200463 Internal combustion engine ignition device and igniter for same |
| 10/13/2004 | EP1396174B1 Galvanically isolated delivery of power to high voltage circuit parts |
| 10/13/2004 | EP1072085A4 A high-voltage pulse generator |
| 10/07/2004 | US20040195225 Method and apparatus for receiving a universal input voltage in a welding power source |
| 10/06/2004 | EP1203427B1 High pulse rate pulse power system with liquid cooling |
| 09/30/2004 | US20040190231 Galvanically isolated delivery of power to high voltage circuits parts |
| 09/28/2004 | US6797922 Power supply apparatus for welder |
| 09/23/2004 | US20040183506 High voltage switching apparatus |
| 09/16/2004 | DE4440357B4 Brennstoffzellen-Energieerzeugungsanlage mit Gasverknappungs-Schutzschaltung A fuel cell power plant with gas Verknappungs protection circuit |
| 09/14/2004 | CA2180796C Method of igniting a welding arc |
| 09/07/2004 | US6788012 Circuit for generating high voltage pulse |
| 08/18/2004 | CN1162243C Converter impedance welding controller |
| 08/17/2004 | CA2348140C Power supply for electric arc welding |
| 08/11/2004 | CN1519074A Resistance welding method |
| 08/11/2004 | CN1162048C Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 07/28/2004 | CN1159126C Power source apparatus of device using electric arc |
| 07/20/2004 | CA2255136C Induction heating type galvanized steel sheet alloying system, high frequency heating apparatus, impedance matching apparatus and impedance transforming method |
| 07/15/2004 | US20040137603 Circuit arrangement for injecting nucleic acids and other biologically active molecules into the nucleus of higher eucaryontic cells using electrical current |
| 07/13/2004 | US6763049 Very high repetition rate power supply system and method |
| 07/06/2004 | US6760675 Adjustable high current and high voltage pulse generator |
| 06/09/2004 | CN1503845A Circuit arrangement for injecting nucleic acids and other biologically active molecules into the nucleus of higher eucaryontic cells electrical current |
| 06/02/2004 | CN1152465C DC power unit with electric arc apparatus |
| 05/25/2004 | US6741484 Power modulator having at least one pulse generating module; multiple cores; and primary windings parallel-connected such that each pulse generating module drives all cores |
| 05/19/2004 | CN1496775A Power supply of short-circuit arc-welding and automatic soldering machine using the power supply |
| 05/18/2004 | US6737847 Capacitor charging method and charging apparatus |
| 05/06/2004 | DE19962618B4 Elektrozaungerät mit einem Transformator geringer Masse Energizer with a transformer low mass |
| 04/29/2004 | US20040079740 Electric arc welder and method for controlling the welding process of the welder |
| 04/29/2004 | US20040079739 Generator for unitary power factor arc welders |
| 04/28/2004 | EP1413381A2 Electric arc welder and method for controlling the welding process of the welder |
| 04/28/2004 | EP1413055A2 Adjustable high current and high voltage pulse generator |
| 04/22/2004 | DE10311900A1 Gleichstrom-Gleichstromwandler DC-DC converter |
| 04/21/2004 | EP1410867A2 Power supply for short-circuiting arc welding and automatic welding machine utilizing the same |
| 04/15/2004 | US20040070995 DC-DC converter |
| 04/15/2004 | US20040069759 Method and apparatus for welding with CV control |
| 04/15/2004 | DE10195975T5 Entladungspulsgenerator Discharge pulse generator |
| 04/14/2004 | EP1407849A2 Method and apparatus for welding with constant voltage control |
| 04/14/2004 | EP1406743A1 Generator for unitary power factor arc welders |
| 04/01/2004 | US20040060913 Power supply for short-circuiting arc welding, and automatic welding machine utilizing the same |
| 04/01/2004 | US20040060912 Engine driven inverter welding power supply |
| 03/24/2004 | EP1401090A1 Polarity inversion circuit for pulsating DC power supply |
| 03/18/2004 | WO2004023637A1 A power supply |
| 03/18/2004 | US20040050833 Tandem electrode welder and method of welding with two electrodes |
| 03/17/2004 | EP1224717A4 High pulse rate pulse power system with fast rise time and low leakage current |
| 03/10/2004 | EP1396174A1 Galvanically isolated delivery of power to high voltage circuit parts |
| 03/10/2004 | EP1396082A2 High voltage switching apparatus |
| 03/04/2004 | US20040040945 Welding method and welding power supply apparatus |
| 02/26/2004 | US20040035839 Tandem electrode welder and method of welding with two electrodes |
| 02/18/2004 | CN1138606C Power supply apparatus for welders and method of mfg. same |
| 02/05/2004 | US20040022294 Wire-wound apparatus and high-voltage pulse generating circuit using wire-wound apparatus |
| 02/05/2004 | US20040021451 Power supply for electric arc welding |
| 02/04/2004 | EP1142090B1 Voltage switch-over device |
| 01/29/2004 | US20040016724 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 01/28/2004 | EP1383901A1 Circuit arrangement for injecting nucleic acids and other biologically active molecules into the nucleus of higher eucaryontic cells using electrical current |
| 01/27/2004 | US6683278 Tandem electrode welder and method of welding with two electrodes |
| 01/14/2004 | EP1380377A2 Apparatus, system and method to facilitate reconfigurable welding power supply |
| 01/09/2004 | CA2434344A1 Apparatus, system and method to facilitate reconfigurable welding power supply |
| 01/06/2004 | US6674179 Engine driven inverter welding power supply |
| 01/06/2004 | CA2311823C Tandem electrode welder and method of welding with two electrodes |
| 01/02/2004 | EP1376868A2 High-voltage pulse generating circuit |
| 12/31/2003 | WO2004001940A1 High-current power supply using storage battery |
| 12/18/2003 | US20030230938 High-voltage pulse generating circuit |
| 12/02/2003 | CA2236938C Engine driven inverter welding power supply |
| 11/20/2003 | US20030214269 High current pulse generator |
| 11/19/2003 | EP1363386A1 High current pulse generator |
| 11/18/2003 | US6650091 High current pulse generator |
| 11/12/2003 | CN2586288Y High voltage electronic wave generator |
| 11/05/2003 | CN1453927A Electric power apparatus for welder |
| 10/30/2003 | US20030201262 Power supply apparatus for welder |
| 10/14/2003 | US6633093 High voltage pulse generator using a non-linear capacitor |
| 10/07/2003 | US6630799 Resonant power supply and apparatus for producing vacuum arc discharges |
| 10/01/2003 | CN1122589C Power supply apparatus for resistance welding |
| 09/18/2003 | WO2003076114A1 Two stage welder and method of operating same |
| 09/18/2003 | CA2474938A1 Two stage welder and method of operating same |
| 09/17/2003 | CN1121297C Contact welding power supply apparatus |
| 08/05/2003 | US6603273 Fast accelerating flow generator power supply |
| 07/29/2003 | US6600134 Power supply for electric arc welding |
| 07/24/2003 | WO2003061125A1 Power modulator |
| 07/24/2003 | WO2003061094A1 Circuit for stably charging battery |
| 07/24/2003 | DE20306339U1 Programmable interruption free power supply has battery back up with automatic switching |
| 07/17/2003 | US20030132211 Method for regulating and/or controlling a welding current source with a resonance circuit |
| 07/15/2003 | US6594292 Saturable reactor and power source apparatus for pulse laser utilizing same |
| 07/10/2003 | US20030128554 Power modulator having at least one pulse generating module; multiple cores; and primary windings parallel-connected such that each pulse generating module drives all cores |
| 06/25/2003 | CN1112506C Waste gas treatment equipment |
| 06/12/2003 | WO2003009477A3 Adjustable high current and high voltage pulse generator |
| 06/04/2003 | EP0759215B1 Pulse power generating circuit with energy recovery |
| 06/03/2003 | US6573618 Compact pulse-current supply |