| 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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| 04/19/2012 | DE102011014826A1 Stromversorgungskreis und Motorvorrichtung Power supply circuit and motor apparatus |
| 04/19/2012 | DE102010048866A1 Electronic three-phase current supply transformer for use in industries for power supply, has control electronic circuit, where electronic flux converter enables energy transmission from three-phase network at three-phase voltage |
| 04/19/2012 | DE102004028990B4 Verfahren für die automatische Anpassung eines Reglers an eine Last A method for automatic adjustment of a regulator to a load |
| 04/18/2012 | EP2442436A2 Control method and system for reducing the common-mode current in a power converter |
| 04/18/2012 | EP2441165A1 Improvements in the distribution and utilisation of electrical energy in industrial processes |
| 04/18/2012 | EP2441077A1 A versatile distribution transformer |
| 04/18/2012 | CN202197223U 基于正弦调制波的单相逆变变频电源 Based on single-phase inverter power inverter sinusoidal modulation wave |
| 04/18/2012 | CN202197222U 电压变换器 Voltage converter |
| 04/18/2012 | CN202197221U 变换器箱 Converter box |
| 04/18/2012 | CN202197220U 二次回路相序切换电路 Phase sequence secondary circuit switching circuit |
| 04/18/2012 | CN102422518A 功率转换装置 Power conversion means |
| 04/18/2012 | CN102422517A 功率变换装置 Power conversion means |
| 04/18/2012 | CN102420532A Wind energy variable-frequency air conditioning system |
| 04/18/2012 | CN102420531A Wind energy and optical energy complementary type variable-frequency air conditioning system |
| 04/18/2012 | CN102420530A 一种小体积高精度高可靠性的高压电源 A small-volume high precision and high reliability, high voltage power supply |
| 04/18/2012 | CN101615847B 基于电力电子变压器的自动电压调节器 Based on power electronic transformer automatic voltage regulator |
| 04/18/2012 | CN101465607B 谐波注入型直驱式风电变流器 Harmonic injection type direct drive wind power converters |
| 04/17/2012 | US8159851 Matrix converter |
| 04/17/2012 | US8159850 Converter control device |
| 04/17/2012 | US8159847 Method and arrangement in connection with a brake chopper |
| 04/17/2012 | US8159842 Power converter |
| 04/17/2012 | US8159840 Multilevel inverter |
| 04/12/2012 | WO2012045666A2 Method and device to protect an esp power supply from transient over-voltages on the power grid |
| 04/12/2012 | WO2012045602A2 Rectifier circuit |
| 04/12/2012 | US20120087157 Dc-to-ac power inverting apparatus for photovoltaic modules |
| 04/12/2012 | US20120086533 Multi-phase transformer |
| 04/12/2012 | US20120086269 Power conversion system and uninterruptible power supply system |
| 04/12/2012 | DE102010042355A1 Transformer assembly for high voltage direct current power transmission device, has taps provided at side of corresponding auto-transformers and individually connected with inputs corresponding to flow control valves of rectifier bridges |
| 04/12/2012 | CA2813815A1 Method and device to protect an esp power supply from transient over-voltages on the power grid |
| 04/12/2012 | CA2813318A1 Converter circuit |
| 04/11/2012 | CN202190217U 一种核电站用行车大车行走变频器制动单元管理电路 One kind of nuclear power plants with driving carts walking inverter circuit braking unit management |
| 04/11/2012 | CN202190216U 新型全自动交流稳压电源 The new automatic AC power supply |
| 04/11/2012 | CN202190085U 变压器试验发电机串联扩大容量运行结构 Transformer Test series to expand the capacity of the generator run structure |
| 04/11/2012 | CN202190078U 一种末端电压补偿装置 A terminal voltage compensation device |
| 04/11/2012 | CN102414975A 电力转换电路 Power conversion circuit |
| 04/11/2012 | CN102414974A Smart electronic switch for low-power loads |
| 04/11/2012 | CN102412775A 一种机车多模块变频交流辅助系统及实现方法 One kind of multi-module frequency AC locomotive auxiliary systems and implementation |
| 04/11/2012 | CN102412750A Power supply circuit for supplying power to electronic device such as image forming apparatus |
| 04/11/2012 | CN102412736A 电子变压器 Electronic Transformer |
| 04/11/2012 | CN102412735A 四象限变频器用控制方法 Four-quadrant inverter control method |
| 04/11/2012 | CN102412734A Full-power wind power converter used for electrically excited synchronous generator |
| 04/11/2012 | CN102412733A 宽范围稳压稳频电源 Wide range of power supply voltage frequency stabilization |
| 04/11/2012 | CN102412732A 一种不间断电源装置及其控制方法 A power supply apparatus and control method uninterrupted |
| 04/11/2012 | CN102412731A 斩波式交流调压器 Chopper AC Regulator |
| 04/11/2012 | CN102412730A 半波电压合成型逆变电源 Synthetic half-wave voltage inverter |
| 04/11/2012 | CN102412633A 基于频率可调的无线输电装置的电源控制系统 Adjustable frequency power supply control system based on wireless transmission device |
| 04/10/2012 | US8154890 Inverter apparatus with control and voltage-sag circuitry to quickly restart when recovering from a mini power failure |
| 04/05/2012 | WO2012043465A1 Method for measuring link voltage |
| 04/05/2012 | WO2012041544A1 Modular converter with reduced protection requirements that prevent damage to components by extinguishing fault currents |
| 04/05/2012 | WO2012041380A1 Modular converter with reduced protection requirements that prevents damage to components by extinguishing fault currents. |
| 04/05/2012 | WO2012041147A1 Voltage conversion device |
| 04/05/2012 | US20120081934 Photovoltaic power conditioning units |
| 04/05/2012 | US20120081933 Photovoltaic power conditioning units |
| 04/05/2012 | US20120081061 Adaptive harmonic reduction apparatus and methods |
| 04/04/2012 | CN202182925U 一种电力变压器承受短路能力的试验电源 A power transformer short circuit withstand capability test power |
| 04/04/2012 | CN102403956A Motor driving apparatus |
| 04/04/2012 | CN102403915A 1000kw/1140v矿用隔爆十二脉冲供电变频装置 1000kw / 1140v powered mine explosion-proof twelve pulse frequency devices |
| 04/04/2012 | CN102403914A 模块开关、电换流器和用于驱动电换流器的方法 Module switches, electrical converter and the inverter driving method for |
| 04/04/2012 | CN102403913A Electric power system of power-driven oil special vehicle |
| 04/04/2012 | CN102403912A 一种中高压变频器四象限一体化抽屉式功率单元 One kind of high-voltage inverter integrated drawer four-quadrant power unit |
| 04/04/2012 | CN102403911A 供电电路 Power supply circuit |
| 04/04/2012 | CN102403910A 一种调压式整流变压器 One kind of regulator rectifier transformers |
| 04/04/2012 | CN102403909A 煤层气井电潜泵排采电气连接方法及装置 CBM drainage wells electric submersible pump electrical connection method and apparatus |
| 04/04/2012 | CN102403776A Hybrid power supply system and hybrid power supply method for air conditioner |
| 04/04/2012 | CN102403111A 户外箱式10～20kV/220V变压器 Outdoor Box 10 ~ 20kV / 220V transformer |
| 04/04/2012 | CN101714826B 多相电流供给电路、驱动装置、压缩机及空气调和机 Multiphase current supplying circuit, the drive apparatus, and air conditioner compressor |
| 04/04/2012 | CN101326704B 电力转换装置及电力转换系统 The power converter apparatus and the power conversion system |
| 04/04/2012 | CN101277569B 用于简单建立电连接的电流平衡电路 A simple electrical connection is established for the current balance circuit of |
| 03/29/2012 | US20120075893 Inverter device overvoltage protection method |
| 03/29/2012 | US20120075892 Discontinuous pulse width drive modulation method and apparatus |
| 03/29/2012 | DE102011083752A1 Verfahren und Vorrichtung zur diskontinuierlichen Pulsweiten-Ansteuermodulation Method and apparatus for the discontinuous pulse width Ansteuermodulation |
| 03/28/2012 | EP2434632A2 Wind energy system |
| 03/28/2012 | EP2434631A1 Protection circuit for a wind-power generator |
| 03/28/2012 | EP2434607A2 Wind energy system |
| 03/28/2012 | EP2434148A2 Wind energy system |
| 03/28/2012 | CN202178735U 一种恒流逆变系统 One kind of constant current inverter system |
| 03/28/2012 | CN202178710U 一种混合箝位背靠背式多电平ac-dc-ac变换电路 A hybrid clamped back to back multi-level ac-dc-ac converter circuit |
| 03/28/2012 | CN202178146U Flat transformer and switch power supply |
| 03/28/2012 | CN102395238A Double-Moss tube asynchronous control HID transformer frequency output apparatus |
| 03/28/2012 | CN101854753B Totally-enclosed medium-frequency power control cabinet |
| 03/28/2012 | CN101635558B Inverter generator |
| 03/28/2012 | CN101443991B Input/output duty control method for AC-AC direct conversion device |
| 03/28/2012 | CN101364772B Circuit arrangement for supplying electric energy to variable loads from three phases |
| 03/28/2012 | CN101309047B Electric power conversion device |
| 03/27/2012 | US8144492 Current controlled power converter |
| 03/22/2012 | WO2012034593A1 Power supply arrangement for a substation |
| 03/22/2012 | WO2011067090A3 Method for operating an inverter circuit and device for carrying out said method |
| 03/22/2012 | DE102010045621A1 Current control system for power generation plant, has resistive load connected to detector and current regulator, to receive driving voltage and to sends feedback signal to detector |
| 03/21/2012 | EP2430506A1 A motor controller and related method |
| 03/21/2012 | CN1988305B Method in frequency converter, and frequency converter |
| 03/21/2012 | CN102386942A Single/three-phase control node device of wireless sensor network |
| 03/21/2012 | CN102386784A 节能电子变压器及其操作方法 Energy-saving electronic transformer and its method of operation |
| 03/21/2012 | CN102386783A Low-harmonic intermediate-frequency power supply |
| 03/21/2012 | CN102386782A Power supply regulating system used for polycrystalline silicon production |
| 03/21/2012 | CN102386781A Three-line light modulator |
| 03/21/2012 | CN102386633A Megawatt direct-drive alternating current-direct current-alternating current wind power generating system with squirrel-cage asynchronous generator |
| 03/21/2012 | CN101728942B Method and device for controlling direct current/direct current power converter with ripple rejection |
| 03/20/2012 | CA2620498C System and method of reducing harmonic effects on a power delivery system |
| 03/20/2012 | CA2609798C Inverter operation with over-modulation |
| 03/15/2012 | WO2012032196A1 Power conversion system and associated method |