| Patents for H02M 9 - Conversion of dc or ac input power into surge output power (1,495) |
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| 07/26/2006 | CN1808877A High-frequency high-voltage pulse power supply and high-frequency high-voltage pulse generation method |
| 07/19/2006 | CN1805263A High-frequency mode power supply device for pulse laser |
| 07/19/2006 | CN1805256A Power module cartridge |
| 07/05/2006 | CN2794031Y Low-current pulsing arc power supply of metal steaming vacuum arc |
| 07/05/2006 | CN1797918A Power supply equipment and power supply method |
| 07/04/2006 | US7072370 Arrangement for generating pulsed currents with a high repetition rate and high current strength for gas discharge pumped radiation sources |
| 06/29/2006 | US20060138112 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 06/28/2006 | EP1675139A2 Power source for plasma device |
| 06/28/2006 | CN1794554A Power source for plasma device |
| 06/28/2006 | CN1793410A High voltage puls supply unit with fining metal solidification component |
| 06/28/2006 | CN1261274C System and method for controlling electric-arc welding machine |
| 06/23/2006 | CA2506051A1 Power source for plasma device |
| 06/20/2006 | US7065122 Wire-wound apparatus and high-voltage pulse generating circuit using wire-wound apparatus |
| 06/13/2006 | US7060935 Power supply for electric arc welding |
| 06/07/2006 | EP1665512A1 A power supply |
| 06/07/2006 | CN2786865Y Combination wave generator |
| 06/01/2006 | WO2006057365A1 High-voltage pulse generating circuit |
| 05/31/2006 | CN1257979C Circuit arrangement for injecting nucleic acids and other biologically active molecules |
| 05/24/2006 | CN1777010A Matching circuit between pulse power source and capacitive load |
| 05/23/2006 | US7049546 Method and apparatus for receiving a universal input voltage in a welding power source |
| 05/17/2006 | CN2781668Y Antiriot mobile phone |
| 04/26/2006 | CN2775932Y Power device for non-linear crystal polarization |
| 04/26/2006 | CN1253996C Electric power apparatus for welder |
| 04/13/2006 | US20060076333 Tandem electrode welder and method of welding with two electrodes |
| 04/13/2006 | US20060076329 Transformer module for a welder |
| 04/12/2006 | CN1758514A 电源装置 Power supply unit |
| 04/06/2006 | WO2004023637A8 A power supply |
| 04/04/2006 | US7022942 Tandem electrode welder and method of welding with two electrodes |
| 03/29/2006 | CN1247357C Arc welding machine with multi-power supply |
| 03/14/2006 | CA2326958C Arc welder and torch for same |
| 02/28/2006 | US7005855 Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coil fly back energy and two-stage regulation |
| 02/14/2006 | US6998573 Transformer module for a welder |
| 02/07/2006 | US6995337 Power source with saturable reactor |
| 01/31/2006 | US6992264 Welding method and welding power supply apparatus |
| 01/17/2006 | US6987242 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 01/12/2006 | US20060006159 Method and apparatus for welding with CV control |
| 12/28/2005 | EP1609553A1 Power source for high current welding |
| 12/28/2005 | CN1712170A Power source for high current welding |
| 12/13/2005 | US6975520 DC-DC converter having stable input voltage |
| 12/06/2005 | CA2342039C Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source |
| 11/30/2005 | CN2744063Y Electrostatic discharging generator |
| 11/24/2005 | WO2005112246A1 High voltage pulse generating circuit |
| 11/16/2005 | EP1595634A1 Electric arc welder system with waveform profile control for cored electrodes |
| 11/09/2005 | CN1693026A Electric arc welder system with waveform profile control for cored electrodes |
| 11/03/2005 | US20050242076 Electric ARC welder system with waveform profile control for cored electrodes |
| 10/27/2005 | US20050236383 Engine driven converter with feedback control |
| 10/18/2005 | US6956185 Tandem electrode welder and method of welding with two electrodes |
| 10/13/2005 | WO2005096486A1 High-voltage pulse generating circuit |
| 10/13/2005 | US20050224481 Electric arc pulse welder with short circuit control |
| 10/05/2005 | EP1582282A1 Electric arc pulse welder with short circuit control |
| 10/05/2005 | CN1676262A Electric arc pulse welder with short circuit control |
| 09/29/2005 | DE102004060735A1 Baugruppe für eine geregelte Spannungsversorgung für die Ermittlung der Ionisation im Zylinder unter Verwendung der Rücklauf-Energie der Zündspule und einer zweistufigen Regelung Assembly for a regulated voltage supply for the determination of ionisation in the cylinder using the flyback energy of the ignition coil and a two-stage scheme |
| 09/15/2005 | US20050200304 Arrangement for generating pulsed currents with a high repetition rate and high current strength for gas discharge pumped radiation sources |
| 09/15/2005 | US20050199604 Method and apparatus for receiving a universal input voltage in a welding power source |
| 09/14/2005 | CN1218807C Power supply for arc-welding |
| 09/07/2005 | EP1570937A2 Short circuit arc welder and method of controlling same |
| 09/07/2005 | CN1666415A Power modulator |
| 08/25/2005 | US20050184039 Short circuit arc welder and method of controlling same |
| 08/18/2005 | US20050180176 Welding set with quasi-resonant soft-switching inverter |
| 08/17/2005 | EP1564876A1 Welding unit with soft switching quasi-resonant inverter |
| 08/17/2005 | CN1654150A Welding process and welding electric power unit |
| 08/16/2005 | US6930408 Circuit for the generation of electric power of opposite polarity in a pulsating power supply |
| 08/11/2005 | DE102004001782A1 Bipolar Marx generators with a switching turret for industrial gas processing uses directly triggered impulse generators |
| 08/10/2005 | CN1652446A Ultra-low repeated frequency high-voltage rectangular pulse power supply |
| 07/28/2005 | DE10361908A1 Pulse electric current generating apparatus used in microchip manufacture, has capacitor bank comprised of two capacitors, for producing high voltage for discharge |
| 07/20/2005 | EP1554801A1 Power modulator |
| 07/13/2005 | CN1638907A Two stage welder and method of operating same |
| 07/07/2005 | US20050145611 Power source for plasma device |
| 07/07/2005 | DE10356648A1 Electronic Pockel cell driver for capacitive loads, uses at least two load switching units switched by driving circuit |
| 06/23/2005 | US20050134281 Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coil fly back energy and two-stage regulation |
| 06/21/2005 | US6909067 Method and apparatus for welding with CV control |
| 06/16/2005 | US20050127048 Power supply for electric arc welding |
| 06/02/2005 | WO2005050826A1 High voltage pulse generating circuit |
| 06/01/2005 | CN1203952C Electric arc welder and electrode holder thereof |
| 05/17/2005 | US6894406 Superconducting switching element and method |
| 05/17/2005 | US6894401 Engine driven inverter welding power supply |
| 05/11/2005 | CN1615567A Circuit for stably charging battery |
| 05/04/2005 | EP1224717B1 High pulse rate pulse power system with fast rise time and low leakage current |
| 04/27/2005 | CN1199342C Discharge pulse generator |
| 04/13/2005 | EP1522587A2 Method for introducing nucleic acids and other biologically active molecules into the nucleus of higher eukaryotic cells by means of an electric current |
| 04/13/2005 | EP1251991B1 Method for regulating and/or controlling a welding current source with a resonance circuit |
| 04/06/2005 | CN1603046A Apparatus and method for welding two spacing ends of gapped workpiece using short circuiting arc |
| 03/22/2005 | US6870132 Power supply for electric arc welding |
| 03/22/2005 | CA2309533C Arc welding power supply, peripheral device for arc welding, and arc welding apparatus |
| 02/17/2005 | US20050035105 Apparatus, system and method to facilitate reconfigurable welding power supply |
| 02/09/2005 | CN1578711A Generator for unitary power factor arc welders |
| 02/09/2005 | CN1575902A Plasma arc electric power apparatus |
| 02/01/2005 | US6849828 Method for regulating and/or controlling a welding current source with a resonance circuit |
| 02/01/2005 | US6849827 Method and apparatus for receiving a universal input voltage in a welding power source |
| 02/01/2005 | CA2315310C Welder with engine power and utility power input |
| 01/26/2005 | CN1186160C Series connected electrode type welding machine and welding method using two electrodes |
| 01/13/2005 | US20050006367 Power source for high current welding |
| 01/13/2005 | US20050006366 Transformer module for a welder |
| 01/13/2005 | US20050006364 Power source with saturable reactor |
| 01/12/2005 | EP1496527A1 Transformer module for a welder |
| 01/12/2005 | EP1495826A1 Power source with saturable reactor |
| 01/11/2005 | CA2462464A1 Transformer module for a welder |
| 12/29/2004 | EP1490194A1 Two stage welder and method of operating same |
| 12/29/2004 | CN1181945C Power supply used in the welding, cutting and heating device |
| 12/21/2004 | US6833529 Power supply for short-circuiting arc welding, and automatic welding machine utilizing the same |