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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04/08/1997 | US5619081 Dimmer |
03/30/1997 | CA2159538A1 Power saving circuitry |
03/27/1997 | CA2186556A1 Power line control system |
03/25/1997 | US5614811 Power line control system |
03/25/1997 | CA2120213C Power inverting apparatus |
03/19/1997 | CN2249989Y Thyristor stepless voltage regulator with power indicator and short circuit protector |
03/13/1997 | WO1997009773A1 Power converter and power converting method |
03/12/1997 | EP0762623A2 Power conversion apparatus |
03/12/1997 | EP0762622A1 High voltage DC link converter control and protection system |
03/11/1997 | US5610805 Uninterruptible power supply with a back-up battery coupled across the a.c. input |
03/06/1997 | WO1997008814A1 Method and device for controlling a four-dimensional vector for a controlled system by means of a discrete-value control element with a limited switching frequency |
03/06/1997 | WO1997008601A1 Process for controlling the power output of an electric circuit, in particular a sinusoidal wave source |
03/06/1997 | DE19532377A1 Supply of AC load especially AC motor |
03/06/1997 | DE19532142A1 Verfahren und Vorrichtung zur Regelung eines vierdimensionalen Vektors einer Strecke mittels eines wertediskreten Stellgliedes mit begrenzter Schaltfrequenz Method and apparatus for controlling a four-dimensional vector of a track by means of a value-discrete control element with a limited switching frequency |
03/05/1997 | EP0760551A2 Electrical device |
03/05/1997 | CN2248906Y Illumination power converting arrangement for lamp box for showing goods |
03/04/1997 | US5608615 Asynchronous intergrid transfer apparatus |
03/04/1997 | US5608301 Motor control system for centrifugal machine |
02/27/1997 | DE19632759A1 Power control for single-phase fan motor or heating resistance |
02/26/1997 | EP0759655A2 Method and device for reducing power consumption of an electric apparatus fed by a voltage converter |
02/26/1997 | EP0759234A1 Switch with controlled rise and fall characteristics |
02/26/1997 | CN1143852A Power converter |
02/26/1997 | CN1034148C Constant magnetic flux, step-by-step rotary, pulse wide modulation, frequency change power |
02/25/1997 | US5606492 Intermittent on/off regulator type DC power supply |
02/25/1997 | US5606244 Mobile AC power source system |
02/25/1997 | CA2018883C Ozone generator equipment and methods |
02/20/1997 | WO1997006598A1 Appliance ac power control apparatus |
02/19/1997 | EP0513346B1 Solid state current controlled interruption system |
02/12/1997 | CN1142706A Electronic impulse electric supply |
02/12/1997 | CN1034041C Exchange type power saver |
02/11/1997 | US5602725 Special purpose power control devices using 3-phase PWM converters for three phase AC power |
02/11/1997 | US5601741 Method and apparatus for receiving a universal input voltage in a welding power source |
02/05/1997 | CN2246869Y Electronic timing and votage-regulating controller |
02/04/1997 | US5600552 Direct current power supply for use in series with a load in an alternating current circuit |
01/30/1997 | WO1997003493A1 Electric power converter for ac electric vehicles |
01/30/1997 | WO1997003451A1 Power saving apparatus using mutual inductive reactor |
01/29/1997 | CN2246350Y Power source phase-sequence conversion control device |
01/28/1997 | US5598326 High frequency AC/AC converter with PF correction |
01/28/1997 | CA2070614C Reactive power control system |
01/15/1997 | CN1140530A Regulated power supply unit with electronic transformer |
01/14/1997 | US5594636 Matrix converter circuit and commutating method |
01/14/1997 | US5594634 DC link inverter having soft-switched auxiliary devices |
01/09/1997 | WO1997001213A1 Rectification, derectification and power flow control |
01/09/1997 | CA2223679A1 Rectification, derectification and power flow control |
01/08/1997 | CN2244798Y Light dimming apparatus for help to navigate in airport |
01/07/1997 | US5592368 Static frequency converter which compensates for fluctuations in a voltage source while controlling the waveform applied to a charge while controlling the waveform applied to a charge |
01/02/1997 | EP0751610A1 Motor control system for centrifugal machine |
12/31/1996 | US5590031 System for converting electromagnetic radiation energy to electrical energy |
12/25/1996 | CN2243723Y Power adjustable electric socket |
12/19/1996 | WO1996041504A1 Phase control circuit having independent half cycles |
12/19/1996 | DE19547465C1 Static converter arrangement with coupled voltage links e.g. for traction drives |
12/18/1996 | EP0749190A2 Interconnection system for electrical systems having differing electrical characteristic |
12/17/1996 | US5586017 Power generator comprising a transformer |
12/17/1996 | US5585708 Four quadrant motor controller minimizing distortion index |
12/12/1996 | DE19522933C1 Monitoring system for ring spinning machine with individual spindle drives |
12/11/1996 | EP0746808A1 Switchmode ac power controller |
12/10/1996 | US5583423 Energy saving power control method |
12/04/1996 | EP0746184A2 Circuit arrangement for energy saving operation of electrical loads |
12/04/1996 | EP0746086A2 Power converter |
12/04/1996 | EP0704144A4 Soft switching circuitry |
12/04/1996 | CN2241926Y Single-phase voltage-regulating power connector |
12/04/1996 | CN1137193A Auxiliary power supply device |
12/04/1996 | CN1033480C Multifunctional shock-proof voltage regulator |
11/28/1996 | WO1996037946A1 Power converter drive |
11/28/1996 | DE19519424A1 Stromrichterantrieb Converter drive |
11/27/1996 | EP0744118A1 Regulated power supply unit with an electronic transformer |
11/27/1996 | CN2241416Y Switch power supply |
11/26/1996 | US5578908 Phase control circuit having independent half cycles |
11/20/1996 | EP0513349B1 Method and device for radio-navigational determinations using artificial earth-satellites |
11/19/1996 | CA2022375C Ac-excited rotary electric machine system |
11/14/1996 | DE19531517C1 Electrical ac signal output control method esp. for sinusoidal waveforms |
11/14/1996 | DE19523565C1 Static converter for variable speed drive |
11/13/1996 | CN1135679A Transforming device and air conditionor using said device |
11/12/1996 | US5574636 Zero-voltage-transition (ZVT) 3-phase PWM voltage link converters |
11/07/1996 | WO1996035256A1 A.c. voltage setter with a control circuit |
11/07/1996 | DE19516546A1 Wechselspannungssteller mit einer Steuerschaltung Ac voltage controller with a control circuit |
11/07/1996 | DE19516355A1 Feed device for frequency converter with reversible energy flux direction e.g. for electric machine control |
11/06/1996 | CN2239671Y Electrothermal blanket switch having electronic timing, safety protecting and temp. control function |
10/30/1996 | EP0740387A2 Interconnection system for transmitting power between electrical systems |
10/29/1996 | US5570279 PWM converters for three phase AC power control and AC to DC conversion |
10/23/1996 | EP0739087A2 Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation |
10/22/1996 | CA2170686A1 Interconnection system for electrical systems having differing electrical characteristic |
10/17/1996 | WO1996032773A1 Two-phase inverter drive for a three-phase motor |
10/17/1996 | WO1996032771A1 Energy control device |
10/01/1996 | US5561597 Compact and efficient transformerless power conversion system |
10/01/1996 | US5561595 Power inverter with input line conditioning |
10/01/1996 | US5560218 Control apparatus and method for an air conditioner |
09/26/1996 | DE19530594C1 Electrical device energy consumption reduction system |
09/25/1996 | CN2236191Y Voltage regulator and stabilizer contacted with pistioner and variable brush-frame |
09/22/1996 | CA2172213A1 Regulation of current or voltage with pwm controller |
09/18/1996 | EP0732798A1 PWM control apparatus and a system using same |
09/18/1996 | CN1131358A AC and DC dual-purpose high voltage controllable power supply |
09/18/1996 | CN1131357A Unipolar series resonant converter |
09/04/1996 | EP0730339A2 Power inverting apparatus |
08/27/1996 | US5550463 Power supply connected in parallel with solid state switch for phase control of average power to a load |
08/14/1996 | EP0726641A2 Method for generating two three-pHase modulation signals for a PWM controller of a matrix converter |
08/14/1996 | CN1128913A High voltage electric power conversion method and apparatus thereof |
08/13/1996 | US5545965 Three phase motor operated from a single phase power supply and phase converter |
07/30/1996 | US5540898 Ozone generator with in-line ozone sensor |
07/25/1996 | DE19501901A1 Electro-separation filter current regulation method |