Matches 1 - 35 out of 35


Match Document Document Title
US20150229260 Generating Heat in a Movable Barrier Operator  
A movable barrier operator apparatus having a motor and a control system is disclosed. The motor is configured to couple to a movable barrier. The control system is configured to cause the motor...
US20120187874 VARIABLE DAMPING CIRCUIT FOR A SYNCHRONOUS SERVOMOTOR  
A damper circuit for damping a synchronous servo-motor having at least one winding, at least one main damper resistor, connection means for connecting the main damper resistor in series with the...
US20140021890 COMMINUTING MACHINE DRIVE SYSTEM  
A comminuting machine includes a frame, a comminuting rotor coupled to the frame, and a rotary drive coupled to the rotor. The rotary drive including a controller, a multi-phase motor connected to...
US20090309522 GENERATOR-BRAKE INTEGRATION TYPE ROTATING MACHINE  
A generator-brake integration type rotating machine comprises an inertia disk coupled to a shaft to rotate; a rotor ring rotating around the shaft inside the inertia disk and having magnets...
US20150108928 SYSTEMS AND METHODS FOR BRAKING AN ELECTRIC MOTOR  
A motor controller for an electric motor having a stator and a rotor. The motor controller includes a power input for receiving AC power from a power source; a control input for receiving a...
US20140111124 SYSTEMS AND METHODS FOR BRAKING AN ELECTRIC MOTOR  
A motor controller for an electric motor having a stator and a rotor. The motor controller includes a power input for receiving AC power from a power source; a control input for receiving a...
US20100231147 BRAKING FUNCTION FOR BRUSHLESS DC MOTOR CONTROL  
A motor control circuit that features a smart, two-phase braking operation is presented. The motor control circuit includes a motor drive circuit to apply a brake current to a coil of an external...
US20130207578 REVERSE CURRENT PROTECTION CONTROL FOR A MOTOR  
A method is provided. A command to correspond to a target speed of a motor is received. A rotational speed of the motor is measured, and a brake-to-off ratio for a braking interval is calculated...
US20140203740 POWER CONVERSION DEVICE  
A power conversion device for driving a load, including a power conversion device main body configured to receive an input of a power supply voltage and to drive the load, and a brake circuit...
US20120086370 MOTOR DRIVING CIRCUIT  
A motor driving circuit is applied to a motor unit, a pushrod unit, and a load unit. The motor unit is driven by the motor driving circuit. The pushrod unit is driven by the motor unit to lengthen...
US20100315025 DYNAMIC BRAKING FOR ELECTRIC MOTORS  
A system and method are provided for improved dynamic braking in AC motors with an electronic drive, and more particularly to using a current regulation circuit to control the current supplied to...
US20120181955 TRANSFER APPARATUS FOR ELECTRIC POWER  
Apparatus for transferring power between an electricity network (UP) operating on alternating-current electricity and a multiphase electric machine (M2, M3), which apparatus comprises low-voltage...
US20090251081 ELECTRIC MOTOR DRIVE EMPLOYING HYBRID, HYSTERETIC/PULSE-WIDTH-MODULATED DYNAMIC BRAKING  
A dynamic braking circuit for an electronic motor drive shunts the DC link of the drive with a resistor using two control strategies. The first control strategy used for lower levels of braking...
US20140139151 SYSTEMS, METHODS, AND ASSEMBLIES FOR DETECTING STOPPAGE OF ELECTRIC MOTORS  
A motor controller for an electric motor having a stator and a rotor. The motor controller includes a power input for receiving AC power from a power source; a control input for receiving a...
US20120153876 Blower Apparatus having an Electric Drive Motor  
The invention relates to a blower apparatus (1) having a blower wheel (4) for generating a blower air flow (50). The blower wheel (4) is arranged in a housing (2), wherein the blower wheel is...
US20130214707 METHOD AND DEVICE FOR CONTROLLING AN ELECTRIC MACHINE  
In a method for predefining a generator-based braking power of an electric machine in a vehicle, a motor-based propulsion power is predefined as a function of the position of a first final control...
US20090315293 RUNNING DEVICE, AND BRAKING CONTROL METHOD FOR THE RUNNING DEVICE  
A parallel two-wheeled vehicle including a braking mechanism to directly brake two wheels that includes: a body; a pair of drive units coaxially mounted to the body; a T-shaped handle to be...
US20080265812 Electric powertrain system having bidirectional DC generator  
An electric powertrain for use with an engine and a traction device is disclosed. The electric powertrain has a DC motor/generator operable to receive at least a portion of a first mechanical...
US20120116618 SYSTEM AND METHOD FOR CONTROLLING TRACTION  
A traction control system for a machine having an electric drive configuration is disclosed. The fraction control system includes an electric motor associated with at least one wheel and adapted...
US20110227513 POWER CONVERTER DEVICE  
A power converter device for achieving a stable braking operation, preventing excessive current to flow therein, when conducting DC braking on a permanent synchronous motor, comprises: a switching...
US20090189551 METHOD AND APPARATUS FOR STOPPING SERVO MOTOR  
The servo motor is controlled by a control signal from a control circuit. A common branch line is separated from a positive common line in accordance with information that a safety door is opened....
US20130119899 PROCESS FOR ELECTRICAL ASSISTANCE TO THE BRAKING OF A VEHICLE AND ASSOCIATED MOTOR SYSTEM  
A process for electrical assistance to the braking of a vehicle with a motor system (M), whereby the motor system (M) includes at least one electric motor (10) whose output shaft (14) is coupled...
US20130127380 Power Converter Device  
An electric power converting apparatus includes a switching circuit, a PWM controller, conducting PWM all phase shut-off and zero-vector outputting, a unit configured to detect or estimate current...
US20110017735 INDUCTION ACTUATED CONTAINER  
An induction actuated container cover includes a control housing having a cover opening, a cover panel pivotally mounted to the control housing to pivotally move between a closed position that the...
US20140084819 CONTROLLER FOR DRIVING A MOTOR AND ELECTRIC POWER-ASSISTED VEHICLE  
A controller for driving a motor has: an input part that receives, from each of two brake sensors, a signal indicating a corresponding brake is in an ON state or a signal indicating that the brake...
US20080143283 SYSTEM, METHOD, AND COMPUTER SOFTWARE CODE FOR CONTROLLING PERFORMANCE OF A DYNAMIC BRAKING SYSTEM  
A method for controlling a performance of a dynamic braking system to maintain a dynamic braking tractive effort current plateau and/or improve the dynamic braking tractive effort current plateau,...
US20090066272 Electric safety braking device with permanent magnet motor and breaking torque control  
This electric safety braking device for an electric traction vehicle may allow the force/speed characteristic of the vehicle to be improved and includes a rotating electromechanical machine with...
US20140210383 SENSORLESS MOTOR BRAKING SYSTEM  
An electric motor control system includes a motor control circuit for generating a motor control signal and a braking mechanism for adjusting the motor control signal to augment motor losses when...
US20110044832 Fluid Energy Machine  
A fluid energy machine, in particular a compressor, is provided. The fluid energy machine includes a common rotor, which is mounted using magnetic bearings, for the flow machine and the drive. In...
US20150097499 THRUST REVERSER CONTROL SYSTEM  
A control system for a thrust reverser with a movable cowl includes an electromechanical actuator to actuate the movable cowl, an electric drive unit (M) driving the actuator, and a power control...
US20150223394 CONTROL SYSTEMS AND METHODS FOR ELECTRIC MOTORS OF UTILITY VEHICLES  
Electronic control systems and related control methods for controlling electric auxiliary motors for performing work, such as electric deck motors for mower blades. The apparatus is shown in use...
US20170093309 ROBOT SYSTEM  
A robot system includes a motor, an inverter, a first control portion, and a second control portion. The motor includes stator windings for three phases. The inverter includes series-connection...
US20160254773 Method for Operating a Universal Motor  
A method for operating a universal motor, comprising the following steps:—establishing a synthetic variable from at least two physical operating parameters of the universal motor; and—operating...
US20160049888 EXTENDED CURRENT DETECTING METHOD FOR CONTROLLING THREE-PHASE MOTOR IN EVENT OF EMERGENCY BRAKE  
Disclosed is a method, including: urgently putting a brake on a vehicle; detecting current values for at least two phases among phases of a motor which operates at a current which is out of a...
US20120217098 BRAKING APPARATUS, ELECTRIC DRIVE, AND ELEVATOR SYSTEM  
The invention relates to a braking apparatus, an electric drive and an elevator system. The braking apparatus comprises an apparatus for dynamic braking, for braking an electric machine with...

Matches 1 - 35 out of 35