| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 01/15/2002 | CA2267035C Current modulation motor controller |
| 01/10/2002 | DE10130557A1 Verfahren und Vorrichtung zur Spannungskompensation für einen 3-Phasen-Wechselrichter mit vier Schaltern Method and device for voltage compensation for a 3-phase inverter with four switches |
| 01/09/2002 | CN1330447A Automatic detection of bypass for soft starter of controller |
| 01/09/2002 | CN1077740C Rotating machine integrated with controller and inverter |
| 01/09/2002 | CN1077616C Drive unit for shaft of device working in synchrony with shanks of mechanical loom to form leno selvage |
| 01/08/2002 | US6337803 Power module |
| 01/03/2002 | US20020000784 Power output device |
| 01/02/2002 | EP1168593A2 Mechanical power outputting apparatus and inverter |
| 01/02/2002 | EP1168590A1 Automatic sensing of bypassing of soft starter or controller |
| 01/02/2002 | EP1166446A1 Method and apparatus for providing pulse width modulation |
| 01/02/2002 | EP1166431A1 Speed control for induction motor with variable voltage-frequency ratio |
| 01/02/2002 | CN1329768A Control device |
| 01/02/2002 | CN1077350C 逆变器装置 Inverter means |
| 01/01/2002 | US6335871 Motor operation controller and insulation type bidirectional DC voltage converter |
| 01/01/2002 | US6335608 Fault protection circuitry for motor controllers |
| 01/01/2002 | US6335607 Method of correcting flux midpoint in flux-controlled alternating current systems |
| 01/01/2002 | US6335605 Vector controller for induction motor |
| 12/26/2001 | CN1328185A Washer |
| 12/26/2001 | CN1076902C Bridge power converter |
| 12/20/2001 | WO2001097355A1 Dynamic motor drive torque control based on power switching device temperature feedback |
| 12/20/2001 | WO2001051351A3 Ship propulsion system comprising a control that is adapted with regard to dynamics |
| 12/19/2001 | EP1163716A1 Electronic controller for an electric hand tool |
| 12/12/2001 | CN1076142C Method for control speed of induction motor |
| 12/11/2001 | US6329783 Apparatus for continuously variable speed electric motor applications |
| 12/11/2001 | US6329781 Control apparatus of synchronous motors |
| 12/11/2001 | US6329776 Method and apparatus for switching an AC machine between a drive and a power supply |
| 12/06/2001 | US20010048310 Motor insulation fault detection by sensing ground leak current |
| 12/06/2001 | US20010048278 Cross coupled motor gate drive |
| 12/06/2001 | DE10060368A1 Verfahren zum Steuern eines Asynchronmotors und Gerät zum Ausführen desselben Of the same method for controlling an asynchronous motor and apparatus for performing |
| 12/06/2001 | DE10055223A1 Method and device for detecting three-phase AC currents of two different frequencies uses two current detection sensors to detect multiple three-phase AC currents of different frequencies produced by coils in a dynamo machine |
| 12/06/2001 | DE10026279A1 Electric circuit for supplying current to load has converter that can be operated as d.c. to a.c. converter and as d.c. to d.c. converter; several storage chokes are provided for each converter |
| 12/05/2001 | CN1325559A Method and apparatus for protecting PWM cycloconverter |
| 12/05/2001 | CN1325177A Phase-position distortion compensation apparatus for reducing torque pulse in three-phase motor |
| 11/29/2001 | DE10054675A1 Pulse width modulation signal generation circuit for controlling polyphase stepping motor, has D-flip-flops connected to output of PWM control circuits for shifting the time of the flanks of PWM signals of several phases differently |
| 11/29/2001 | DE10051621A1 Induction motor (asynchronous motor) with pole switching has stator with group(s) of first winding with 2n poles, second with 2m poles on same stator core, m=2kn and k is a natural number |
| 11/28/2001 | CN1075684C Speed-change controller forinduction motor |
| 11/27/2001 | US6324038 Current control apparatus with overcurrent protective function for a motor |
| 11/27/2001 | US6323574 Polyphase motor and polyphase motor system for driving the same |
| 11/22/2001 | US20010043481 Inverter device |
| 11/22/2001 | US20010043048 Speed sensorless vector control apparatus |
| 11/21/2001 | CN1075281C Variable speed controller for AC motor |
| 11/21/2001 | CN1075278C Inverter controller |
| 11/21/2001 | CN1075277C EMI filter for electric vehicle power system |
| 11/20/2001 | US6320339 Control device for controlling current passing through a motor |
| 11/14/2001 | EP1154552A1 Method and apparatus for protecting pwm cycloconverter |
| 11/14/2001 | EP1153473A1 Method and device for controlling an electric motor |
| 11/14/2001 | CN1322397A Method for controlling current-regulated motor |
| 11/14/2001 | CN1322055A Supply unit, motor driving device and air conditioner |
| 11/13/2001 | US6316905 Means and device for determining the angular velocity of a rotor of polyphase machine operated by field orientation without a transmitter |
| 11/13/2001 | US6316895 Multi-speed motor controller |
| 11/08/2001 | WO2001045275A3 A power control device and the method therefor |
| 11/08/2001 | WO2001029950A3 Method and apparatus for delivering power to a mechanical or electrical system |
| 11/08/2001 | US20010038541 Drive and power supply with phase shifted carriers |
| 11/07/2001 | EP1152521A1 Inverter controller |
| 11/07/2001 | EP1152520A2 Inverter device |
| 11/06/2001 | US6313603 Method of regulating a rotary machine, and power supply circuit for such a machine |
| 11/06/2001 | US6313602 Modified space vector pulse width modulation technique to reduce DC bus ripple effect in voltage source inverters |
| 11/06/2001 | US6313599 Method for controlling an inverter |
| 11/06/2001 | US6313593 Motor controller |
| 11/01/2001 | WO2001082466A1 Magnetic bearing controller |
| 11/01/2001 | US20010036097 Power module |
| 11/01/2001 | US20010036093 Inverter control apparatus |
| 11/01/2001 | US20010035731 Single-phase powered drive system |
| 10/31/2001 | EP1150406A1 Control device |
| 10/31/2001 | EP0931378B1 Operating system for a vacuum pump |
| 10/31/2001 | CN1320297A Controller for PWM/PAM motor and method for controlling air conditioner and motor having controller |
| 10/31/2001 | CN1319947A Vector controller without speed sensor |
| 10/31/2001 | CN1074205C Driver for switching reluctance motor |
| 10/25/2001 | WO2001080416A1 Motor controller |
| 10/24/2001 | EP1147597A1 Motor drive circuit |
| 10/24/2001 | EP0720785B1 Electric motor |
| 10/23/2001 | US6307760 Three level inverter apparatus |
| 10/23/2001 | US6307759 Control device for electric power translating device |
| 10/23/2001 | US6307358 Method and apparatus for delivering power to a mechanical or electrical system |
| 10/23/2001 | US6307275 Method and apparatus for controlling a high-speed AC permanent magnet synchronous motor coupled to an industrial turbo engine |
| 10/18/2001 | DE19951981A1 Driving controller for induction motor has observation devices that output deviation conditions based on which driving operation is controlled |
| 10/17/2001 | EP0775384B1 Digital pulse width modulator with integrated test and control |
| 10/16/2001 | US6304052 Control system for a permanent magnet motor |
| 10/11/2001 | WO2001075378A1 Method of controlling preheating power and mechanism for providing preheating |
| 10/11/2001 | US20010028236 Speed control apparatus for synchronous reluctance motor |
| 10/11/2001 | DE10017053A1 Drive system with electric motor for variable speeds and operation on AC network, has mains-commutated converters and no common DC intermediate circuit present |
| 10/10/2001 | EP1142098A1 Method and device for controlling deceleration in an induction machine |
| 10/10/2001 | EP1142097A2 Prime mover for operating an electric motor |
| 10/09/2001 | US6301130 Modular multi-level adjustable supply with parallel connected active inputs |
| 10/09/2001 | US6300741 Speed controlling method for induction motor |
| 10/04/2001 | WO2001044083A8 Process for switching between mains supply and a frequency inverter and vice versa for an escalator drive |
| 10/04/2001 | US20010026140 Control apparatus of induction motor |
| 10/04/2001 | US20010026137 Motor control device |
| 10/04/2001 | EP1139561A2 Electric Motor control device |
| 10/04/2001 | DE10106404A1 Drehzahlregelungsvorrichtung für Synchronreluktanzmotor Speed control device for synchronous reluctance |
| 10/03/2001 | CN1072410C Semiconductor power conversion apparatus |
| 09/27/2001 | WO2001041291A8 Inverter controller |
| 09/27/2001 | US20010024100 Vector control method for synchronous reluctance motor |
| 09/27/2001 | DE10013692A1 Einphasig gespeistes Antriebssystem Single-phase powered drive system |
| 09/27/2001 | DE10011518A1 Converter motor for variable speed drive, has motor and converter arranged as physical unit, in which converter is self-commutating direct converter. |
| 09/27/2001 | DE10011295A1 Selective elimination method for removing parasitic zero frequency values in voltage correction range of polyphase machines |
| 09/26/2001 | EP1137163A2 Drive train fed by a single phase |
| 09/26/2001 | CN1314745A Vector control method for synchronous magneto-resistance motor |
| 09/26/2001 | CN1071957C Method and apparatus for controlling current in switched reluctance motor |
| 09/26/2001 | CN1071956C Current control apparatus in switched reluctance motor |