| Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094) |
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| 09/23/2004 | US20040183491 Power electronic converter system |
| 09/23/2004 | US20040183378 Method and system for transferring a load between AC voltage sources |
| 09/22/2004 | CN2643545Y Speed governing device for harmonic suppression of series excited machine |
| 09/22/2004 | CN2643542Y Power source control circuit device for DC brushless fan motor |
| 09/22/2004 | CN2643540Y Three-phase electric power electricity saver |
| 09/22/2004 | CN1531178A DC-to-AC converter |
| 09/21/2004 | US6794929 Active filter for reduction of common mode current |
| 09/16/2004 | WO2004057742A3 Electric power saver by troidal core |
| 09/16/2004 | US20040178680 Induction heating or melting power supply utilizing a tuning capacitor |
| 09/15/2004 | CN2641913Y High voltage large power converter with buffer circuit |
| 09/15/2004 | CN2641912Y Improved high voltage, large power converter |
| 09/15/2004 | CN2641907Y Separating ATX power source supplyer |
| 09/15/2004 | CN1529404A Three-phase split phase-shifting transformer for high-voltage frequency conversion and its use |
| 09/08/2004 | EP1454407A2 VOLTAGE SAG AND OVER−VOLTAGE COMPENSATION DEVICE WITH PULSE−WIDTH MODULATED TRANSFORMER |
| 09/08/2004 | EP1155358B1 A method and system for alternating current regulation |
| 09/08/2004 | CN2640194Y Light-modulation circuit control device |
| 09/08/2004 | CN2640123Y 12 pulse wave commutation frequency converter made of 6 pulse wave commutation frequency converter |
| 09/08/2004 | CN2640122Y Three-phase energy-saving electromagnetic voltage regulation stabilization device |
| 09/08/2004 | CN2640121Y Voltage stabilizer with insertion groove |
| 09/08/2004 | CN2638903Y Three-phase crystal brake tube ring-shaped core DC arc-welding machine |
| 09/08/2004 | CN1527471A Digitally regulating power controller |
| 09/02/2004 | US20040169497 Induction generator power supply |
| 09/01/2004 | CN2638327Y Single phase energy-saving voltage regulator |
| 09/01/2004 | CN1525633A Power converter |
| 09/01/2004 | CN1165106C Onstate power supply circuit with two-wirem electronic switch |
| 08/26/2004 | WO2004073148A2 Ac voltage regulator apparatus and method |
| 08/26/2004 | US20040164716 Generator with dual cycloconverter for 120/240 VAC operation |
| 08/25/2004 | EP1450476A2 Power converter circuit |
| 08/25/2004 | EP1450475A1 Inverter circuit with low inclination towards oscillations |
| 08/25/2004 | CN2636495Y Energy saving protector |
| 08/25/2004 | CN1523727A AC-DC-AC power network parallel operation rotary inverter |
| 08/24/2004 | US6782513 High power factor integrated controlled ferroresonant constant current source |
| 08/24/2004 | US6781854 Matrix converter for transforming electrical energy |
| 08/24/2004 | US6781802 Controlling device of compressor |
| 08/19/2004 | US20040160792 Motor power supply |
| 08/19/2004 | DE10128152B4 Schiffsantriebssystem mit vermindertem Bordnetzklirrfaktor Ship propulsion system with reduced Bordnetzklirrfaktor |
| 08/18/2004 | EP1446869A1 Frequency converter for different mains voltages |
| 08/18/2004 | CN2634726Y 无级调速开关 Variable speed switch |
| 08/18/2004 | CN2634725Y Electric appliance control switch |
| 08/18/2004 | CN2634724Y Dry power changer |
| 08/18/2004 | CN2634517Y Inductive voltage stabilizer |
| 08/18/2004 | CN1522382A Apparatus for supplying power and liquid crsytal display having the same |
| 08/18/2004 | CN1162955C Current source device for latching detection |
| 08/17/2004 | US6778414 Distributed system and methodology of electrical power regulation, conditioning and distribution on an aircraft |
| 08/17/2004 | CA2348140C Power supply for electric arc welding |
| 08/12/2004 | WO2004068694A1 Electric machine for the propulsion drive of a submarine of a synchronous machine excited by a permanent magnet |
| 08/12/2004 | WO2004068688A1 Air-conditioner controller |
| 08/12/2004 | WO2004068683A2 Generator with dual cycloconverter for 120/240 vac operation |
| 08/11/2004 | EP1444772A1 Power supply system for a control device |
| 08/11/2004 | EP1444770A1 Electric motor drive |
| 08/11/2004 | EP0903841B1 Ac/ac converter |
| 08/11/2004 | CN2632982Y Electric power saver of illuminating system |
| 08/11/2004 | CN2632935Y Frequency variable motor |
| 08/11/2004 | CN2632909Y Ultra-low frequency power transmission apparatus |
| 08/10/2004 | US6775115 Voltage conversion system and method and recording medium |
| 08/10/2004 | US6774610 AC voltage regulator apparatus and method |
| 08/10/2004 | US6774608 Turbine driven power generating device having DC voltage intermediate circuit and star connected filter capacitors |
| 08/05/2004 | US20040152996 Transformer-isolated alternating current power supply |
| 08/05/2004 | US20040151119 Method and device for bridging brief power outages in a matrix converter |
| 08/05/2004 | US20040150266 Method and device for shutting down a drive with a matrix converter during a power outage |
| 08/05/2004 | DE10301272A1 Elektrische Maschine für den Propulsionsantrieb eines U-Boots mit einer permanentmagnetisch erregten Synchronmaschine Electrical machine for the propulsion drive a submarine with a permanent magnet-excited synchronous machine |
| 08/04/2004 | CN2631117Y Protection device for control circuit memory body of frequency transformer |
| 08/03/2004 | US6771524 Multiple PWM cycloconverter |
| 08/03/2004 | US6771522 Inverter parallel operation system |
| 08/03/2004 | US6771056 AC controller with reverse blocking IGBT |
| 08/03/2004 | US6770984 Electronic voltage regulator with switching control device and control method for stabilizing output voltage |
| 07/29/2004 | US20040145932 Energy transfer multiplexer |
| 07/29/2004 | US20040145584 Apparatus for supplying power and liquid crsytal display having the same |
| 07/29/2004 | DE10196347T5 Energiewandlervorrichtung Energy conversion device |
| 07/28/2004 | CN2629337Y Electricity-saving apparatus |
| 07/27/2004 | US6768284 Method and compensation modulator for dynamically controlling induction machine regenerating energy flow and direct current bus voltage for an adjustable frequency drive system |
| 07/27/2004 | US6768227 Digital controlled power regulation device |
| 07/22/2004 | US20040141345 DC to DC converter |
| 07/22/2004 | US20040141344 Isolated low-voltage power supply source |
| 07/22/2004 | US20040140720 Digital controlled power regulation device |
| 07/22/2004 | DE10257096A1 Inverter has auxiliary circuit connected in parallel with intermediate circuit capacitor consisting of auxiliary capacitor and first device with three resistance value ranges |
| 07/21/2004 | CN2627727Y Multifunctional power supply unit |
| 07/21/2004 | CN2627726Y Intelligent remote-controlled touch light changing switch |
| 07/21/2004 | CN1514791A Marine propulsion system with reduced on-board network deistortion factor |
| 07/21/2004 | CN1514533A Current detecting unit for inverter |
| 07/15/2004 | WO2004059825A1 Power controller |
| 07/15/2004 | US20040136210 Zero-voltage-switching single-switched resonant DC link with minimized conduction loss |
| 07/15/2004 | US20040135618 Control circuit of two current unidirectional switches |
| 07/15/2004 | US20040135557 Circuit and method for supplying an electrical a.c. load |
| 07/15/2004 | DE19832226B4 Vierquadrantenumrichter für mittlere und höhere Spannungen Four-quadrant converter for medium and higher voltages |
| 07/14/2004 | EP1436645A1 Signal generation apparatus and method for seafloor electromagnetic exploration |
| 07/14/2004 | CN2626128Y Stepped regulating electric tool switch |
| 07/14/2004 | CN2626127Y High-voltage experiment-purposed large-power frequency conversion power supply unit |
| 07/14/2004 | CN1512653A Two line full period single phase electricity taking technology |
| 07/14/2004 | CN1157841C Power factor improver |
| 07/13/2004 | US6762947 Control method and apparatus to reduce current through DC capacitor linking two static converters |
| 07/08/2004 | WO2004057742A2 Electric power saver by troidal core |
| 07/08/2004 | US20040130923 Global closed loop control system with dv/dt control and EMI/switching loss reduction |
| 07/08/2004 | US20040130920 Circuit and fault tolerant assembly including such circuit |
| 07/07/2004 | CN2624520Y Motor soft starter |
| 07/07/2004 | CN2624519Y High power inversion variable-frequency shore power supply for ship building and repairing |
| 07/07/2004 | CN2624518Y High-power power supply for medium-high frequency ozone generator |
| 07/07/2004 | CN2624517Y Electromagnetic intelligent lighting power-saving device |
| 07/07/2004 | CN1510538A AC power regulator with digital control |
| 07/06/2004 | US6760239 Method for controlling a matrix converter |