| 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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| 04/14/2005 | US20050078497 Three phase isolated vector switching AC to AC frequency converters |
| 04/14/2005 | US20050078495 Semiconductor device |
| 04/14/2005 | US20050077886 Interface for supplying power to a load from an electrical power supply network |
| 04/14/2005 | DE10343925A1 Handheld electrical power tool has direct current voltage intermediate circuit with two intermediate circuit capacitors to increase useful network voltage operating range |
| 04/13/2005 | EP1523088A2 Method in connection with network converter, and network converter |
| 04/13/2005 | CN2692913Y Safety DC . AC dual-purpose blasting machine power supply |
| 04/12/2005 | US6879503 Cutting electric power converter |
| 04/12/2005 | US6879062 Electrical substation |
| 04/12/2005 | US6879053 Transformerless, load adaptive speed controller |
| 04/07/2005 | US20050074665 System for storing and/or transforming energy from sources at variable voltage and frequency |
| 04/07/2005 | US20050073867 Power supply system of display apparatus and control method thereof |
| 04/07/2005 | US20050073355 High precision digital-to-analog converter with optimized power consumption |
| 04/07/2005 | DE10342232A1 Leistungssteuerungsvorrichtung eines Elektrowerkzeugs A power control device of an electric tool |
| 04/07/2005 | DE102004042256A1 Direct voltage link circuit e.g. for printing machine, has DC link voltage dropped across series-circuit of ohmic resistor and DC link capacitor |
| 04/06/2005 | EP1520337A1 Method and device for controlling voltage |
| 04/06/2005 | CN1605150A Oxidation reduction reflux battery system and its operation method |
| 04/06/2005 | CN1604446A Power supply system of display apparatus and control method thereof |
| 04/06/2005 | CN1604420A 一种电能质量调节器 POWER QUALITY regulator |
| 04/06/2005 | CN1196247C Power source unit |
| 04/05/2005 | US6876171 Driving apparatus and method of three phase induction motor |
| 03/31/2005 | WO2005029690A1 Pwm cyclo converter |
| 03/31/2005 | US20050068706 Driver system for MOSFET based, high voltage, electronic relays for AC power switching and inductive loads |
| 03/31/2005 | US20050068001 Frequency converter for different mains voltages |
| 03/31/2005 | US20050067966 Power supply apparatus for traveling-wave tube which eliminates high voltage relay |
| 03/30/2005 | CN2689641Y Intelligent electric power saver of light |
| 03/30/2005 | CN2689584Y Induced AC frequency transformers |
| 03/30/2005 | CN2689583Y High-frequency and high-voltage generators |
| 03/30/2005 | CN1602572A Uninterruptive power source apparatus |
| 03/24/2005 | WO2005027301A1 Method for operating a frequency converter of a generator |
| 03/24/2005 | US20050062441 Dimmer for resistive or capacitive loads |
| 03/24/2005 | US20050062437 Centralized device for the control of the feeding voltage of a load provided with a power factor correction condenser |
| 03/24/2005 | DE10338476A1 Spannungszwischenkreis-Umrichter Voltage-source inverter |
| 03/23/2005 | EP1516420A1 Circuit arrangement with a voltage link converter |
| 03/23/2005 | CN1599233A Variable frequency driving device of 3KV-10KV middle-high voltage multi-level three-phase AC motor |
| 03/23/2005 | CN1599222A Electroplate supply unit |
| 03/22/2005 | US6870748 Method and apparatus for controlling the power supplied to a load |
| 03/22/2005 | US6870132 Power supply for electric arc welding |
| 03/17/2005 | WO2005025044A1 System and method utilizing a solid state power controller (sspc) for controlling an electrical load of a variable frequency three-phase power source |
| 03/17/2005 | WO2005025039A1 Method and apparatus for detecting faults in ac to ac, or dc to ac power conversion equipments when the equipment is in a high impedance mode |
| 03/17/2005 | US20050058252 Image reading apparatus and X-ray imaging apparatus |
| 03/17/2005 | US20050057211 Power control device of an electric tool, a method of power control of an electric tool and an electric tool provided with a power control device |
| 03/17/2005 | DE10357918B3 Phase-chopping power regulator for electric motor has semiconductor switch in series with latter and second semiconductor switch connected in series with resistance element across first semiconductor switch |
| 03/16/2005 | EP1515163A2 Image reading apparatus and x-ray imaging apparatus |
| 03/16/2005 | EP1325549B1 A resonant converter |
| 03/16/2005 | CN1596052A 单灯监控及节能系统 Single light control and energy saving system |
| 03/16/2005 | CN1595291A Image reading apparatus and X-ray imaging apparatus |
| 03/15/2005 | US6867564 Integrated DC link choke and method for suppressing common-mode voltage in a motor drive |
| 03/10/2005 | WO2005010931A9 Mutilayer piezoelectric transformer |
| 03/10/2005 | US20050052808 System and method utilizing a solid state power controller (SSPC) for controlling an electrical load of a variable frequency three-phase power source |
| 03/09/2005 | CN2684460Y High voltage frequency conversion system based on AC motor having multiple branch windings |
| 03/09/2005 | CN2684455Y Advanced safety control high-voltage power supply for electric blasting nanometer preparation equipment |
| 03/09/2005 | CN2684454Y Low input voltage large power three-phase 400Hz inverter |
| 03/09/2005 | CN2684453Y Three-phase AC voltage stabilizer |
| 03/09/2005 | CN1592874A Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer |
| 03/09/2005 | CN1591881A 半导体器件 Semiconductor devices |
| 03/09/2005 | CN1192475C Frequency conversion module with thyristor |
| 03/03/2005 | WO2005020420A1 Power converter, motor drive, btb system and system linking inverter system |
| 03/03/2005 | WO2005004317A3 Frequency converter for high-speed generators |
| 03/03/2005 | WO2004114493A3 Wind farm |
| 03/03/2005 | US20050047044 Multiphase reduced voltage starter with bypass relays, interphase electrical isolation and shared thermal mass |
| 03/03/2005 | US20050047035 Method and apparatus for detecting faults in AC to AC, or DC to AC power conversion equipments when the equipment is in a high impedance mode |
| 03/03/2005 | US20050046508 Pulse-width modulation method for a frequency converter |
| 03/03/2005 | CA2536306A1 Power converter, motor drive, btb system and system linking inverter system |
| 03/02/2005 | EP1511168A2 Pulse-width modulation method for a frequency converter |
| 03/02/2005 | EP1511166A1 Power converter |
| 03/02/2005 | EP1511165A2 Multiphase reduced voltage starter with bypass relays, interphase electrical isolation and shared thermal mass |
| 03/02/2005 | EP1509990A1 Configuration and method for protecting converter means |
| 03/02/2005 | EP1509984A1 High-frequency generator |
| 03/02/2005 | CN2682731Y Intelligent protection power saving apparatus |
| 03/02/2005 | CN1589519A Frequency converter for different mains voltages |
| 03/02/2005 | CN1588779A Thyristor self triggering frequency converter circuit |
| 03/02/2005 | CN1588778A Single/three phase impedance source up/down current A/A converter |
| 03/02/2005 | CN1588777A Small power spot welding power |
| 03/02/2005 | CN1588776A Single/three phase impedance source up/down voltage A/A converter |
| 03/02/2005 | CN1588775A Compensation control method when power grid voltage is abnormal by array converter |
| 03/02/2005 | CN1588247A Electric power regulating method and its system with timing function |
| 03/01/2005 | US6862163 Method and device for bridging brief power outages in a matrix converter |
| 02/24/2005 | US20050041443 Voltage source converter |
| 02/23/2005 | EP1508962A2 Converter with intermediate voltage link |
| 02/23/2005 | CN2681445Y Thyristor automatic voltage regulator |
| 02/23/2005 | CN2681302Y On-load smooth regulating transformer |
| 02/23/2005 | CN1586033A Electric motor drive |
| 02/23/2005 | CN1585250A Lighting device of discharge lamp |
| 02/23/2005 | CN1190885C Waveform generation method and power converting device |
| 02/17/2005 | WO2005015726A1 Power conversion device using matrix converter |
| 02/17/2005 | WO2004105225A3 Converter circuit |
| 02/17/2005 | US20050036345 Non-isolated AC power supply device and method for control the same |
| 02/17/2005 | DE10332820A1 Vorrichtung zum potentialgetrennten Umwandeln einer ersten Spannung in eine zweite Spannung zum Messen von Impedanzen und Admittanzen an biologischen Geweben Device for potential separation converting a first voltage into a second voltage for measuring impedances and admittances of biological tissues |
| 02/16/2005 | CN2679812Y Six-splitting drying phase-shiftnig rectiformer |
| 02/16/2005 | CN1582080A Phase controller |
| 02/16/2005 | CN1581624A Frequency transformer control circuit |
| 02/10/2005 | WO2005013467A1 Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion by voltage conversion device |
| 02/10/2005 | US20050030779 Controlling circuit for a pulse width modulated DC/DC converter |
| 02/10/2005 | US20050030774 Piezoelectric transformer and modular connections for high power and high voltage power supplies |
| 02/10/2005 | US20050029996 Power supply for positive and negative output voltages |
| 02/10/2005 | US20050029873 MOSFET based, high voltage, electronic relays for ACpower switching and inductive loads |
| 02/10/2005 | DE202004018792U1 Circuit for a current inverter like an alternating/direct current inverter adjusts a power factor for improved use of sources of electric power and voltage |
| 02/09/2005 | CN2678239Y Explosion-proof frequency transformer |
| 02/09/2005 | CN1578110A Frequency converter and drive for electric motor |
| 02/09/2005 | CN1578093A Frequency converter and its control method |