Matches 1 - 41 out of 41


Match Document Document Title
US20090066279 Thin sensorless multiphase DC motor for rotating display unit  
A thin sensorless multiphase DC motor for rotating display unit comprises a flat stator, a flat magnetized rotor, an axle, a power source and multiphase electronic controller. The flat stator...
US20140152200 PORTABLE SERVICE CONTROLLER FOR ELECTRO-MECHANICAL ACTUATORS  
A portable service controller for controlling an electro-mechanical actuator, the portable service controller includes a battery configured to power the portable service controller and a user...
US20150214865 DC PERMANENT MAGNET SYNCHRONOUS MOTOR  
A DC permanent magnet synchronous motor, including: a motor body including a rotating shaft, a permanent rotor assembly, a stator assembly, and a housing assembly; a motor controller including a...
US20120309241 Joint Commonality Submersible (JCS)  
An underwater propulsion device includes a number of modules allowing it to be used in a range of configurations including a tow/pull type scooter 300, a thigh strap configuration 700, a calf...
US20090126242 THIN MOTORIZED NOVELTY DEVICE  
An device including a motor, a disk rotatable by the motor and a housing for the motor and disk, the housing suitable for insertion into a greeting card, magazine, t-shirt, caps, hats, licensed...
US20110304291 TWO-PHASE BRUSHLESS DC MOTOR  
A brushless motor includes a two-phase winding stator having 4×n winding poles and auxiliary poles provided between the winding poles, and a rotor constituted by 6×n permanent magnet rotating...
US20120206078 SYSTEM AND METHOD OF CONTROLLING THE SPEED OF A MOTOR BASED ON DWELL  
In a method of controlling speed of a brushless, direct current (BLDC) motor based on dwell, an indication of a desired speed of the BLDC motor is received. A dwell is determined based on a...
US20120262101 CONTROL SYSTEMS AND METHODS FOR ELECTRONICALLY COMMUTATED MOTORS  
A controller for varying the voltage provided to an electronically commutated motor includes a circuit configured to generate both a pulse voltage direct current output and a continuous direct...
US20140340015 BRUSHLESS MOTOR, EXTERNAL AC VOLTAGE SOURCE, AND ELECTRIC POWER STEERING DEVICE  
The present invention provides a brushless motor in which the voltage utilization ratio can be increased and the torque and output of the motor can thereby be increased, and also provides a drive...
US20130002180 SINGLE-PHASE BRUSHLESS MOTOR DRIVE CIRCUIT  
A driving circuit for a single-phase-brushless motor includes a driving-signal-generating circuit to generate a driving signal for supplying, to a driving coil of the single-phase-brushless motor,...
US20110025246 POWER CONVERTING APPARATUS  
A converter and an inverter are connected via a clamp circuit. The converter performs commutation in accordance with any of a first commutation mode in which trapezoidal waves are compared with a...
US20140265972 Load Commutated Inverter Drive Systems for High Power Drive Applications  
A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include...
US20100013423 CONTROL CIRCUITRY OF CEILING FAN FOR CONTROLLING ROTATION DIRECTION AND SPEED  
A control circuitry of a ceiling fan for controlling speed and direction of rotation of the ceiling fan includes a power switch, an electromagnetic interference reduction circuit connected to the...
US20130127386 CONTROL UNIT FOR AN ELECTRIC MOTOR, IN PARTICULAR FORA FAN MOTOR  
The invention provides a control unit for at least one electric motor, wherein the control unit performs open-loop or closed-loop control of the motor speed of the electric motor in such a way...
US20120256576 Control Unit For An Electric Motor, In Particular For A Fan Motor  
The invention provides a control unit for at least one electric motor, wherein the control unit performs open-loop or closed-loop control of the motor speed of the electric motor in such a way...
US20070132410 CONTROL ELECTRONICS FOR BRUSHLESS DC MOTORS  
An electronic control circuit controls a brushless DC motor. It includes an input power supply control circuit. A microcontroller integrated circuit has control functions to control a brushless DC...
US20130119908 ELECTRONIC CONTROL UNIT FOR ELECTRIC POWER STEERING  
One embodiment of the present invention provides an electronic control unit for electric power steering, including: a first board which is mounted with first surface-mount components; and only one...
US20080231218 APPARATUS AND METHOD OF DRIVING MOTOR, AND DRIVE APPARATUS USING THE SAME  
An open-loop driving method of a spindle motor includes determining of whether open-loop driving conditions for the spindle motor are met, and adjusting widths of driving pulses applied to the...
US20110001445 LOW-PIN COUNT FAN SPEED CONTROL SYSTEM AND A METHOD THEREOF  
A low-pin count fan speed control system and a method thereof include primarily an activation unit to drive a fan to operate. When the fan starts completely, the fan slows down to a pre-determined...
US20120068650 DRIVING DEVICE OF BRUSHLESS DC MOTOR FOR FAN AND DRIVING METHOD THEREOF  
A driving device of a brushless DC motor for a fan includes a protection circuit, a storage circuit, a control circuit and a bridge circuit. The protection circuit is electrically connected with...
US20100127653 FAN CONTROLLING CIRCUIT  
A fan controlling circuit is provided. The fan controlling circuit includes an integral unit, an operational amplifier, and an output unit. The integral unit transforms pulse width modulation...
US20120235617 SYSTEM FOR CONTROLLING ROTARY ELECTRIC MACHINES TO REDUCE CURRENT RIPPLE ON A DIRECT CURRENT BUS  
The system comprises a first motor for applying rotational energy to a respective first wheel of the vehicle. A second motor is arranged for applying rotational energy to a respective second wheel...
US20130147410 METHOD AND APPARATUS FOR CONTROL OF A SYNCHRONOUS PERMANENT MAGNET MOTOR, PARTICULARLY OVER A LONG CABLE IN A WELL  
A synchronous permanent magnet motor is controlled independently of position sensing means by determining the system parameters including the motor impedance and back-emf and the cable impedance...
US20140084830 CONTROL DEVICE AND METHOD FOR OPERATING AN ELECTRICAL MACHINE DRIVEN BY AN INVERTER  
The invention relates to a method for operating an electrical machine (1) controlled by an inverter (2), wherein the inverter (2) comprises half-bridge branches (10-U, 10-V, 10-W) having power...
US20140084821 Method and Apparatus for Controlling an Electrical Machine  
An observer (404), operating during a time when open loop control (402) is being used to drive a synchronous motor (401), the output of the observer (404) being a signal, E_I_angle, related to the...
US20130264985 Fail-Safe Interface  
Circuits arranged to produce first and second outputs produced by first and second switch-mode converters, respectively, wherein each switch-mode converter comprises a converter input, a converter...
US20140028231 RANGE SWITCHOVER APPARATUS  
When electric power supply is started, an initial driving operation is performed to switch over a power supply phase of a motor in open-loop control. Initial learning processing is performed to...
US20070290639 MOTOR CONTROLLER  
This invention provides a motor controller that can reduce the influence of noisy sound and a torque ripple due to noise. A current command value calculating unit 3 respectively outputs current...
US20140117905 Rotor Control  
A method arranged to control a motor for driving a load is disclosed. The motor and load form at least a part of a system and the motor comprises a stator arranged to produce a varying magnetic...
US20140265973 SYSTEM AND METHOD FOR DETERMINING ROTOR SHAFT POSITION OF HIGH VOLTAGE PM AC SYNCHRONOUS MACHINES USING AUXILIARY WINDINGS  
A system and method for determining rotor shaft position of high voltage permanent magnet AC synchronous machines using auxiliary windings utilizes a permanent magnet AC synchronous motor...
US20140239865 BRUSHLESS MOTOR DEVICE CONTROLLED BY A CARRIER OF DC POSITIVE AND NEGATIVE POWER WIRES  
A brushless motor device controlled by a carrier of DC positive and negative power wires comprises a controller. The controller outputs a positive DC wire for outputting a positive DC voltage and...
US20090261766 METHOD FOR CONTROLLING AN ELECTRIC MOTOR FED BY A CONSTANT VOLTAGE SUPPLY SYSTEM  
Disclosed is a method for controlling an electric motor (10) fed by a constant voltage supply system (14, 20), especially a method for controlling a fan motor which is fed by a motor vehicle power...
US20110316465 CONTROLLING METHOD OF SWITCHES OF SWITCHING ARMS, NOTABLY FOR CHARGING ACCUMULATION MEANS, AND CORRESPONDING CHARGING DEVICE  
The present invention relates to a method for charging accumulation means via an external electrical network via at least a first (A) and a second (B) switching arm respectively comprising two...
US20140176033 DRIVING CIRCUIT, DRIVING MODULE, AND MOTOR DRIVING APPARATUS  
There is provided a driving circuit including: a signal delay unit including a first delay unit delaying a high level input signal in a case in which an input signal has a high level, and a second...
US20100148712 Brushless Multiphase Self-Commutation (or BMSCC) And Related Invention  
Brushless Multiphase Self-Commutation Control (or BMSCC), also known as Real Time Emulation Control (or RTLC), is a contact-less means for powering any electric apparatus with “conditioned” or...
US20140062367 DETECTION CONTROL SYSTEM  
A detection control system includes a sensing unit, a control module and a driving module for a motor including a rotor and a stator. The sensing unit electrically connects the motor to sense a...
US20170077856 THREE-PHASE VARIABLE REFERENCE PULSE WIDTH MODULATION  
A system includes a three phase AC or brushless DC motor, an inverter and a controller. The inverter is electrically coupled to the motor. The controller is -electrically coupled to the inverter....
US20160118919 SYSTEM AND METHOD FOR ASYNCHRONOUS PERMANENT MAGNET MOTOR OPERATION  
A method for implementing asynchronous operation of a permanent magnet motor (PMM) by detecting asynchronous operation of the PMM and creating cyclic variations in the PMM output using the...
US20150288311 Method and Apparatus for Control of a Synchronous Permanent Magnet Motor, Particularly Over a Long Cable in a Well  
A synchronous permanent magnet motor is controlled independently of position sensing means by determining the system parameters including the motor impedance and back-emf and the cable impedance...
US20140312820 Apparatus for Differencing Comparator and Associated Methods  
An apparatus includes an integrated circuit (IC). The IC includes a differencing comparator. The differencing comparator receives a differential input signal. The differencing comparator compares...
US20130088180 OUTSIDE MIRROR CONTROL METHOD OF VEHICLE  
A vehicular outside-mirror control method may improve durability of a motor by appropriately controlling the motor according to a condition of peripheral temperature so as to prevent the motor...

Matches 1 - 41 out of 41