| Patents for H02M 9 - Conversion of dc or ac input power into surge output power (1,495) |
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| 09/16/1997 | CA2137429C Method and apparatus for providing welding current from a brushless alternator |
| 09/03/1997 | EP0792538A1 Circuit for the multiple use of a transformer core |
| 08/27/1997 | EP0791244A1 Modulator for generating a high-power electric pulse |
| 08/13/1997 | EP0788677A1 Transformerless high-voltage generator circuit |
| 08/06/1997 | EP0787555A1 Welding power control apparatus for consumable-electrode type pulse arc welding and a method therefor |
| 07/22/1997 | US5650079 Welding power source |
| 07/22/1997 | CA2113335C Inverter power supply for welding |
| 07/16/1997 | CN1154282A Inverter seam resistance welding electric power supply apparatus |
| 07/16/1997 | CN1154281A Method and apparatus for controlling inverter resistance welding |
| 07/01/1997 | US5643475 Power supply apparatus |
| 06/19/1997 | WO1997022179A1 Circuit configuration for feeding a pulse output stage |
| 06/19/1997 | DE19546563A1 Spannungsversorgung für eine Impulsendstufe Power supply for pulse output stage |
| 06/12/1997 | DE19614195C1 Pulsed voltage supply for electrostatic dust separator |
| 05/21/1997 | EP0774317A1 Pulsed arc welding method and apparatus |
| 05/20/1997 | US5630952 Plasma-arc power supply apparatus |
| 05/14/1997 | EP0773562A2 Current limiter |
| 04/29/1997 | US5624768 Gas shortage preventive circuit for a fuel cell power generation system |
| 04/22/1997 | US5623171 High-voltage pulse generating circuit and electrostatic recipitator containing it |
| 04/02/1997 | EP0721688B1 Method of generating a protection-triggering signal |
| 04/02/1997 | CN1146388A Ignition method for electric arc-welding |
| 03/27/1997 | WO1997011529A1 Circuit for the multiple use of a transformer core |
| 03/27/1997 | DE19534888A1 Schaltungsanordnung zur Mehrfachausnutzung eines Übertragerkerns Circuit arrangement for multiple use of a transformer core |
| 03/26/1997 | EP0764495A1 Inverter seam resistance welding electric power supply apparatus |
| 03/06/1997 | WO1997008813A1 Transformerless high-voltage generator circuit |
| 03/04/1997 | US5607604 Apparatus for detecting voltage across thyristor in alternating-current resistance welding machine |
| 02/26/1997 | EP0759215A1 Pulse power generating circuit with energy recovery |
| 02/26/1997 | CN1143853A Plasma-arc power supply apparatus |
| 02/11/1997 | US5601741 Method and apparatus for receiving a universal input voltage in a welding power source |
| 02/06/1997 | WO1997004519A1 Highly efficient, complementary, resonant pulse generation |
| 02/05/1997 | EP0756914A2 Method and apparatus for controlling inverter resistance welding |
| 02/04/1997 | US5600522 High temperature superconducting fault current limiter |
| 01/15/1997 | EP0753923A1 Method, device for producing a high voltage and installation for electrostatic spraying of a coating product |
| 01/15/1997 | EP0753371A1 Method of igniting a welding arc |
| 01/15/1997 | EP0753350A1 Method for producing high voltage and installation for electrostatic spraying of a coating product |
| 01/09/1997 | WO1997001213A1 Rectification, derectification and power flow control |
| 01/09/1997 | CA2223679A1 Rectification, derectification and power flow control |
| 12/24/1996 | US5587629 Transformerless high-voltage generator circuit |
| 10/22/1996 | US5568226 For elevating an input voltage at a primary side |
| 10/02/1996 | EP0735634A1 Pulse generator circuit |
| 09/24/1996 | US5559687 Voltage multiplier for high output current with stabilized output voltage |
| 09/24/1996 | US5559478 Highly efficient, complementary, resonant pulse generation |
| 09/19/1996 | WO1996028887A1 Electric device |
| 09/04/1996 | CN1130316A Power supply apparatus |
| 08/28/1996 | CN1129626A Method and apparatus for providing welding current from brushless alternator |
| 08/22/1996 | WO1996025778A1 Pulse power generating circuit with energy recovery |
| 08/08/1996 | WO1996024153A1 Multi-phase dc plasma processing system |
| 08/07/1996 | CN1128191A Power source for welding |
| 07/23/1996 | CA2038662C Apparatus for driving the armature of an electric stapler |
| 07/17/1996 | EP0721688A1 Method of generating a protection-triggering signal |
| 07/16/1996 | US5535906 Multi-phase DC plasma processing system |
| 06/26/1996 | EP0718495A1 Lightning protection for wind turbine |
| 06/04/1996 | US5523541 Method and apparatus for controlling constant current for resistance welding |
| 05/23/1996 | WO1996015589A1 Modulator for generating a high-power electric pulse |
| 05/08/1996 | CN1122097A Reduced-power lamp comprising a surge protection element |
| 04/09/1996 | US5506746 Electrostatic powder coating gun and method of generating a high voltage in such a gun |
| 04/03/1996 | EP0705058A1 Device for supplying electric power to flashlamp and method thereof |
| 03/07/1996 | DE4440013C1 High-power electric pulse modulator e.g. for linear particle accelerator |
| 02/01/1996 | DE4434106A1 System for current burst in pulse welding |
| 10/24/1995 | US5461532 Electronic pulse transformer |
| 10/10/1995 | US5457300 Consumable electrode DC arc welder |
| 08/22/1995 | US5443664 Surge current-suppressing circuit and magnetic device therein |
| 08/08/1995 | US5440097 Process for controlling the welding current as a function of welding speed in arc welding equipment |
| 07/19/1995 | CN1105307A Consumable electrode D.C. ARC welder |
| 07/18/1995 | US5434456 Lumped transmission line avalanche pulser |
| 06/14/1995 | EP0657985A1 Apparatus for driving an electrical load from a principal and an auxiliary power source |
| 05/18/1995 | DE4440357A1 Protection for fuel cell against gas shortage |
| 04/18/1995 | US5408067 Method and apparatus for providing welding current from a brushless alternator |
| 04/11/1995 | CA2058549C Arc preventing electrostatic power supply |
| 04/06/1995 | WO1995009469A1 Method of generating a protection-triggering signal |
| 03/21/1995 | US5399910 High voltage/current pulse generator using spark gaps |
| 12/28/1994 | EP0631369A1 Voltage multiplier for high output current with a stabilized output voltage |
| 12/20/1994 | US5375053 Controlled power supply |
| 11/15/1994 | US5365421 Pulse transformer having plural simultaneously operable primary windings and a single secondary winding |
| 11/02/1994 | EP0622148A1 Resistance welding current control method and apparatus |
| 10/26/1994 | CN1093961A Inverter power supply for welding |
| 10/04/1994 | US5352861 Resonant high-voltage pulser for arcjet thruster ignition |
| 09/27/1994 | US5351175 Inverter power supply for welding |
| 08/10/1994 | EP0609900A2 Inverter power supply for welding |
| 07/12/1994 | US5327668 Method for electrofishing |
| 06/21/1994 | CA1330359C Transfection high-voltage controller |
| 06/07/1994 | CA1330107C Transfection high-voltage controller |
| 06/07/1994 | CA1330106C Transfection high-voltage controller |
| 05/25/1994 | CN1024732C Miniature motor having positive-coefficient thermistor |
| 05/17/1994 | US5313384 High voltage generating circuits including a transformerless voltage multiplier |
| 05/17/1994 | US5311694 Electrofishing apparatus and method |
| 04/26/1994 | US5306894 Consumable electrode type D.C. arc welder |
| 03/30/1994 | EP0589202A2 Pistol for electrostatic powder coating and method for generating a high voltage |
| 03/15/1994 | US5294768 Electrical supply circuit for the generation of separately controllable current pulses |
| 03/08/1994 | US5293027 Electronic welding current generator for impulse arc welding |
| 02/23/1994 | CN1082473A Method for adjusting welding current according to welding speed of arc welding machine |
| 02/17/1994 | WO1994003955A1 High temperature superconducting fault current limiter |
| 01/25/1994 | CA1326507C Transfection high voltage controller |
| 12/29/1993 | EP0575589A1 Controlled power supply |
| 12/21/1993 | US5272314 Consumable electrode type d.c. arc welder |
| 12/14/1993 | US5270912 Electrofishing apparatus and method |
| 11/24/1993 | EP0570678A1 Method for controlling the welding current in response to the welding speed in arc welding devices |
| 11/21/1993 | CA2096477A1 Process for controlling the welding current as a function of welding speed in arc welding equipment |
| 09/15/1993 | EP0560711A1 Electric supply circuit for the generation of separately controllable current pulses |
| 08/19/1993 | DE4204844A1 Voltage or current control of thyratron for gas-laser switching - determining error pulse rate or repetition rate of gas laser and setting operating voltage or current accordingly |
| 07/22/1993 | WO1993014557A1 Controlled power supply |