Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › 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
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)
10/2007
10/31/2007CN200969558Y Power-saving device fit for low-voltage three phase electric appliance
10/31/2007CN101064480A AC power source converting apparatus and method
10/31/2007CN101064479A Superposition principle based programmable harmonic voltage source for large power test
10/31/2007CN101064478A Method of determination of a distribution of energy to a plurality of electrical loads and corresponding system
10/31/2007CN100346565C Thyristor self triggering frequency converter circuit
10/30/2007US7288904 Centralized control device for controlling the application of voltage to a load provided with a power factor correction capacitor
10/25/2007US20070247878 "Low Loss Propulsion System"
10/25/2007DE102006018160A1 Rectifier cascade-arrangement for use in speed-changeable drive system, has transformer for feeding energy back into network, and rectifier having insulated-gate bipolar transistors functioning as power semiconductor switches
10/24/2007CN200964061Y Locomotive distributed assistant circuit electric power system
10/24/2007CN101060730A Arc furnace power supply device
10/24/2007CN101060305A Automatic voltage regulating system for electric drive motor
10/24/2007CN101060303A A method for realizing the AC load continuous voltage regulating and keeping the sine wave pattern with the switching element
10/24/2007CN100345365C Compensation control method when power grid voltage is abnormal by array converter
10/23/2007US7285995 Charge pump
10/18/2007WO2007100265B1 Single phase power supply for inductively coupled power transfer systems
10/18/2007US20070242491 Process for Determining the Loading Condition of a Diode Rectifier of a Frequency Converter
10/18/2007US20070242490 Method and device for producing rectifier gating signals using a peak detector
10/18/2007DE19850905B4 Vorrichtung zur Leistungssteuerung An apparatus for power control
10/18/2007DE102006014297A1 Phase section control circuit for use in switching power supply, has control unit arranged such that both rising portion and sloping portion of half wave of change signal are usable for control of switch
10/17/2007CN200962566Y RF power used for low-temperature plasm peroxide hydrogen disinfection and sterilization device
10/17/2007CN200962366Y An improved transformer
10/17/2007CN101056065A Cross frequency conversion device controlled by impulse block chopped wave
10/17/2007CN101056064A Power saving apparatus
10/17/2007CN100344057C Driving mechanism for industrial installations, in particular for primary industry installations
10/16/2007US7283378 High efficiency DC link inductor
10/11/2007WO2007113312A1 Device for supplying a plurality of loads from an electrical power feed network
10/11/2007WO2007030833A3 System and method of reducing harmonic effects on a power delivery system
10/11/2007WO2007006851A3 Method for improving the operation of a power control circuit and an advanced power control circuit
10/11/2007WO2007003544A3 Frequency converter provided with a capacitorless intermediate voltage circuit
10/11/2007DE202007009919U1 Netzgerät Power Supply
10/11/2007DE102006016983A1 Overload and short-circuit protection method for switching power supply, involves reducing manipulated variable with increasing switching current magnitude, if switching current magnitude exceeds threshold switching current magnitude
10/11/2007CA2650439A1 Device for powering a plurality of loads from an electrical power supply network
10/10/2007EP1842272A1 Distribution voltage land connection for ships
10/10/2007EP1842183A1 Complete orchestration system
10/10/2007EP1529335B1 Device for controlling power by phase control, and method for reducing harmonic waves
10/10/2007CN200959588Y Electric-motor controller
10/10/2007CN200959576Y Power unit fault bypass device of hihg-voltage frequency converter
10/10/2007CN200959575Y Frequency converter with bypass and fault-restoration functions
10/10/2007CN200959574Y AC-DC combined power-supply converter
10/10/2007CN200959573Y Miniature AC power-supply module for LED
10/10/2007CN101051793A Megawatt direct driving type wind and electric joint-net current transformer
10/10/2007CN101051792A Nine device AC-to-AC converter
10/09/2007US7280938 Method for determining a negative sequence component
10/09/2007US7280377 Power converter in a utility interactive system
10/09/2007US7279811 Arrangement for supplying variable loads
10/09/2007CA2467635C Power management system for a floor care appliance
10/04/2007US20070230228 Zero-voltage-switching DC-DC converters with synchronous rectifiers
10/04/2007DE102006013692A1 Infrarot-dimmbarer Niedervolt-(Halogen)trafo Infrared dimmable low voltage (halogen) transformer
10/03/2007CN200956554Y 功率单元 Power unit
10/03/2007CN200956553Y Harmonic-pollution-free mediumfrequency power supply
10/03/2007CN200956552Y General frequency inverter phase-locking circuit
10/03/2007CN200956541Y Split-pole synchronous motor
10/03/2007CN200954463Y High-frequency high-voltage power supply for integrated dust collection
10/03/2007CN101048931A Bipolar power supply with lossless snubber
10/03/2007CN101047340A Power generation system and method
10/03/2007CN101047306A Control panel structure of portable digital generating set
10/03/2007CN100341240C Controllable inductance of AC field magnetic amplifier and its application
10/03/2007CN100341232C Multiple machine integrated brushless motor variable frequency unit
10/03/2007CN100341222C 一种电能质量调节器 POWER QUALITY regulator
10/02/2007US7277302 12-pulse converter including a filter choke incorporated in the rectifier
09/2007
09/27/2007WO2007108427A1 Voltage regulator
09/27/2007US20070223258 Multilevel converters for intelligent high-voltage transformers
09/27/2007US20070223257 Method and Circuit for Controlling a Rectifier
09/27/2007US20070223256 Power Device
09/26/2007EP1837984A1 Method of determination of a distribution of energy to a plurality of electrical loads and corresponding system
09/26/2007EP1692757B1 Device for power adjustment by phase control and method for reduction of harmonic waves
09/26/2007CN200953539Y Transformer solid loaded tap changer controller
09/26/2007CN200953529Y Aerial ground AC static electric source
09/26/2007CN101043780A Road lamp electricity-saving method and electricity-saving device
09/26/2007CN101043768A Booster circuit, power-supply unit, and image forming apparatus using the same
09/26/2007CN101043184A Energy-saving amplitude modulation circuit and controll system
09/26/2007CN101043145A Ups systems having multiple operation modes and methods of operating same
09/25/2007US7274579 Converter circuit and motor driving apparatus
09/25/2007US7274575 AC coupled bias circuit for power converters
09/25/2007US7274547 Electrical power supply system and a permanent magnet generator for such a system
09/25/2007US7274280 Nine-phase step-up/step-down autotransformer
09/25/2007US7274241 Global closed loop control system with DV/DT control and EMI/switching loss reduction
09/25/2007US7274181 Systems, multiphase power converters with droop-control circuitry and methods
09/25/2007CA2333684C Solid state transformer
09/20/2007US20070217243 Pwm Cycloconverter And Control Method For Pwm Cycloconverter
09/19/2007EP1835608A2 Apparatus and method for supplying DC power source
09/19/2007CN101040570A Controllable power supply circuit for an illumination system and methods of operation thereof
09/19/2007CN101040428A Power supply circuit protecting method and apparatus for the same
09/19/2007CN101040424A Method and apparatus for adjusting current amongst phases of a multi-phase converter
09/19/2007CN101039091A Method and apparatus for realizing load voltage regulation with a plurality of switching elements
09/19/2007CN101039079A Apparatus and method for supplying DC power source
09/19/2007CN101039078A Non-isolation type AC-AC tri-level converter
09/19/2007CN100338839C Ultralow frequency transmission system
09/18/2007US7272024 Synchronized rectification circuit and switching power supply device
09/18/2007US7271505 Voltage balancing in intermediate circuit capacitors
09/12/2007EP1833153A2 Electric engine start system with active rectifier
09/12/2007EP1192625B1 Charge transfer apparatus and method therefor
09/12/2007CN101034854A Voltage-adjustable multi-channel output power and its method for adjusting the output voltage
09/11/2007US7269037 Power supply with a direct converter
09/07/2007WO2007100265A1 Single phase power supply for inductively coupled power transfer systems
09/05/2007CN200944560Y Resistance-capacitance voltage-reducing power circuit
09/05/2007CN200944482Y Ballast lamp cap
09/05/2007CN200944339Y Isolated ultrahigh capacity induction regulator
09/05/2007CN101032072A Energy recovery system
09/05/2007CN101030744A Starter of oil-submersible electric pump
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