Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02P - Control or regulation of electric motors, generators, or dynamo-electric converters; Controlling transformers or reactors or choke coils › H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details
Patents for H02P 25 - Arrangements or methods for the control of ac-motors characterised by the kind of ac-motor or by structural details (7,591)
09/1996
09/29/1996CA2172668A1 Position encoder with fault indicator
09/29/1996CA2172667A1 Angle controller for a switched reluctance drive utilizing a high frequency clock
09/26/1996DE19609986A1 Method of operating an electric motor, esp. for electric hand tool, e.g. drill,
09/25/1996EP0734117A2 Torque improvement in reluctance machines
09/25/1996EP0734116A2 Electrical motor control device and method
09/25/1996EP0733279A1 Repulsion motor
09/22/1996CA2172121A1 Torque improvement in reluctance machines
09/19/1996DE19509144A1 Electronic circuitry for pulse-width modulator in motor speed control circuit
09/18/1996EP0732802A1 Switched reluctance motor provided with rotor position detection
09/18/1996EP0732801A2 Apparatus for starting a switched reluctance motor
09/18/1996EP0732800A1 Switched reluctance motor provided with rotor position detection
08/1996
08/29/1996DE19506006A1 Antrieb mit einem Drehstrom-Asynchronmotor mit Schleifringläufer Drive with a three-phase asynchronous motor with slip
08/28/1996EP0427868B1 Reluctance-type electric motor
08/22/1996WO1996025788A1 Device for converting a resistance value into a control signal which depends on the resistance value, and electrical apparatus comprising such a device
08/22/1996WO1996025787A1 Drive with three-phase asynchronous motor with a slip ring rotor
08/22/1996CA2213202A1 Drive having a three-phase asynchronous motor with slip ring rotor
08/20/1996US5548196 Switched reluctance motor driving circuit
08/14/1996EP0662266B1 Process and device for regulating a converter-powered, permanently excited synchronous motor
08/13/1996US5545964 Control of switched reluctance machines
08/13/1996US5545936 C-stator type segmented zoned field dc-motor
08/08/1996DE19603341A1 Phase control unit for electric motor rotary speed control
08/08/1996DE19508765C1 Thyristor turn-off time control e.g. for inverter-fed synchronous motor
08/08/1996DE19503492A1 Adjustment and control system drive and position measurement device
08/06/1996US5543700 Driver circuit and a driving method for a variable-reluctance motor
08/01/1996WO1996023349A1 A device for control of the speed of a series motor
08/01/1996CA2208071A1 A device for control of the speed of a series motor
07/1996
07/30/1996US5541493 Method of controlling current for coil of synchronous motor
07/24/1996EP0723333A1 Electric motor control circuit
07/23/1996US5539295 Device for indicating the state of a single-phase asynchronous motor
07/18/1996DE19500847A1 AC field excited inverter motor operating method for three=phase slip-ring rotor machine
07/17/1996EP0721695A1 Electric motor with torque detecting means
07/17/1996CN1032343C AC motor drive system
07/17/1996CN1032342C AC motor drive system
07/16/1996US5537019 Switched reluctance motor providing rotor position detection at high speeds without a separate rotor shaft position sensor
07/11/1996DE19605413A1 DC linear motor for use in position control
07/03/1996EP0720283A2 Switched reluctance motor position by resonant signal injection
07/03/1996EP0720269A1 Stop control device for single-phase asynchronous motor with capacitor
07/03/1996EP0720268A1 Stop control device for single-phase asynchronous motor with capacitor
07/03/1996EP0720266A1 Process and device for temperature monitoring of a universal motor
07/03/1996EP0719473A1 Pulse width modulating motor controller
07/03/1996CN1125919A Reciprocatory dry shaver
07/02/1996US5532567 Controller for switched reluctance motor
06/1996
06/27/1996DE4445356A1 Single-phase salient pole reluctance motor with light barrier commutation e.g. for driving pump or centrifuge
06/26/1996EP0718962A1 Method and device for lowering induced voltage of induction motor
06/25/1996US5530333 Control of an inductive load
06/25/1996US5530325 Speed control circuit for a universal motor
06/12/1996EP0716214A2 Method and device for controlling the stopping of electric motor driven roller shutters or the like
06/11/1996US5525887 Switched reluctance motor providing rotor position detection at low speeds without a separate rotor shaft position sensor
06/11/1996US5525886 Low speed position estimator for switched reluctance machine using flux/current model
06/05/1996EP0715397A2 Switched reluctance motor
06/05/1996EP0714566A1 Efficient control system for electric motors
05/1996
05/23/1996WO1996015582A1 Flat reluctance type three-phase motor
05/22/1996EP0649577B1 Fault-tolerant reluctance motor
05/21/1996CA2103393C Single phase ac motor speed control system
05/15/1996EP0422226B1 Reluctance motor
05/15/1996CN1122531A Motor unit, motor drive unit, fan unit and method of controlling the motor drive unit
05/14/1996US5517415 Method and apparatus for detecting a motor stall condition in an electric assist steering system
05/14/1996US5517102 Fault-tolerant reluctance motor
05/09/1996WO1996013894A1 Method and device for load power control via a phase adjustment system
05/09/1996WO1996003796A3 C-stator type segmented zoned field dc motor
05/09/1996DE4439760A1 Drive with direct invertor and synchronous motor in open loop
05/08/1996CN1122071A Electric machine controller
05/07/1996US5514942 Circuit arrangement for powering control circuitry and driving an inductive load from a single DC source
05/01/1996EP0709278A1 Method and apparatus for detecting a motor stall condition in an electric assist steering system
05/01/1996EP0709155A1 Miter saw with switched reluctance motor
05/01/1996CA2145210A1 Miter saw with switched reluctance motor
04/1996
04/30/1996US5512810 Variable speed control for a hand-held electric power tool
04/25/1996DE4437488A1 Switched reluctance motor for driving motor vehicle accessories up to 60 V
04/25/1996DE19535676A1 Power control of induction motor e.g for driving pump for heating systems
04/23/1996US5509504 Velocity regulated, open current loop, variable voltage, variable frequency, linear induction motor drive for an elevator car door
04/18/1996WO1996011525A1 Electric tool, in particular a screw-driving tool
04/10/1996CN1120263A Device to regulate the speed of an electric motor and its method of operation
04/02/1996US5504410 For an inductive element
04/02/1996US5503248 Maintaining open loop current drive to linear induction motor
03/1996
03/28/1996WO1996009683A1 Electronically switched reluctance motor
03/28/1996DE4443602A1 On/off and directional controller for mains powered vent actuator
03/28/1996DE4441208C1 Synchronous motor for exertion of torque about more than one spatial axis
03/28/1996DE4433797A1 Vorrichtung zur selbsttätigen Endabschaltung eines Rollvorhangs, insbesondere eines Rolladenpanzers Apparatus for automatically limit a roller blind, especially a roller shutter
03/27/1996EP0703344A1 Selfactuating stopping device for a roller blind, especially for a roller shutter
03/21/1996DE19510365A1 Electrical tool rotary speed control input device
03/19/1996CA2061207C Starting multi-speed motors at a low speed connection
03/13/1996EP0700594A1 Electric motor drive
03/13/1996CN1118330A Maintaining open loop current drive to linear induction motor
03/12/1996US5498946 Device for controlling the variation of the power and/or the speed of a load
03/12/1996CA2037042C A method and a device for sensorless control of a reluctance motor
03/07/1996WO1996007232A1 Circuit arrangement to prevent brush problems
03/05/1996US5497064 Apparatus for starting a switched reluctance motor
02/1996
02/28/1996EP0698963A1 Apparatus for obtaining three-phase position detection signals by one position detection element
02/27/1996US5495161 Speed control for a universal AC/DC motor
02/15/1996DE4428682A1 Supply for AC load, such as AC motor
02/13/1996US5491398 Repulsion motor
02/08/1996WO1996003796A2 C-stator type segmented zoned field dc motor
02/08/1996DE4427487A1 Control of synchronous AC motor
02/08/1996DE3546896C2 Speed control method for electromotor
02/07/1996EP0696103A1 High-speed constant-horsepower motor
02/07/1996EP0511398B1 Reluctance type motor
02/06/1996US5489845 Encoder system and method for determining absolute rotor position by taking a mid value of the multiple coil output sinusoidal signals
02/06/1996US5489831 Pulse width modulating motor controller
01/1996
01/18/1996WO1996001523A1 Load-commutated synchronous motor drive
01/17/1996EP0692865A2 Electric machine controller
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