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Document Title |
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7629776 |
Control and power module for a rotating electrical machine
A control and power module for a rotating electrical machine comprising a power circuit containing a number of branches, and a control circuit designed for controlling the power circuit when the...
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RE40713 |
Turbogenerator/motor controller
A turbogenerator/motor controller with a microprocessor based inverter having multiple modes of operation. To start the turbine, the inverter connects to and supplies fixed current, variable...
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7492113 |
Brushless motor drive control circuit and brushless motor device using the same
There is provided a brushless motor drive control circuit capable of assuring an S/N ratio of a predetermined counter electromotive voltage and suppressing lowering of efficiency of a brushless...
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7129669 |
Motor controller, semiconductor integrated circuit, indicating instrument and method for controlling a motor
A motor controller comprising, a detector configured to perform a difference processing for information relating to a counter electromotive force and an induced electromotive force generated by a...
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6559611 |
Method for starting a load by engine-driven generator and engine-driven generator
At a starting of a motor which receives an electric power from a generator driven by an engine, an excitation current controller controls an excitation current so as to cause an output frequency of...
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6433496 |
Semiconductor integrated circuit for motor control
A motor controlling semiconductor integrated circuit for controlling a motor by a PLL control is provided comprising output transistors for driving a motor, a position detecting means detecting a...
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6429614 |
Method and device for controlling an electronically commutated polyphase D.C. motor
A device and method for driving a polyphase DC motor, in which a phase selector circuit, in each case, selects only one phase, which is fed to a commutation detection circuit. After each...
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6081084 |
Sensorless power angle control for a vehicle alternator
An alternator having a sensorless power angle control includes a three phase stator winding and three stator winding outputs connected to a controlled full wave rectifier bridge with a dc output....
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6051951 |
Generator motor for internal combustion engine
An alternator for an engine normally operated as a generator is caused to operate as a synchronous motor according to the operating condition of the engine. If power generation by the alternator 1...
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6034492 |
Motor-generator
A D.C. motor-generator and an electric double layer capacitor are fixedly connected directly to each other and a rotary shaft of the motor-generator is rotated in one direction by an external force...
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6023135 |
Turbogenerator/motor control system
A turbogenerator/motor control system having a plurality of proportional integral control loops including a fuel command control loop and a current command control loop. The exhaust gas temperature...
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5998944 |
Method and apparatus for controlling a lifting magnet of a materials handling machine
An apparatus and method for controlling a lifting magnet (12) of a materials handling machine (10) to eliminate arcing between contacts (70-80) within the magnet controller (26) as is well as is...
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5977730 |
Method and apparatus for controlling the flow of hydraulic fluid
A hydraulic circuit (124) is defined in a manifold (130) which may be aluminum, steel, or any other suitable material. The circuit (124) regulates the flow of hydraulic fluid to the hydraulic motor...
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5844384 |
Electronic charger-starter for vehicles
A control circuit of the current to the secondary and a control circuit of the voltage to the secondary are such that the current for charging the battery and the current for starting will each...
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5648705 |
Motor vehicle alternator and methods of operation
A conventional full wave diode bridge of an alternator is replaced with a full wave controlled rectifier bridge having controlled switches in place of diodes. Phase control is performed by the...
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5619108 |
Vehicle alternating-current generator control device and vehicle alternating-current generator
A vehicle alternating-current generator control device having a single in-line molded package type control component with its leads arranged on one side. Disposed on the control component is an...
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5189355 |
Interactive rotary controller system with tactile feedback
An apparatus for controlling conditions in response to an operator input, the apparatus including a rotary knob coupled to the shaft of the rotor of a stepper motor having first and second stator...
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5030898 |
Variable voltage limit control for an electric propulsion system
Method and apparatus for optimizing power delivered by a prime mover-driven electric power alternator to an adjustable speed electric traction motor during high speed operation. The alternator is...
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3688874 |
ELEVATOR MOTOR CONTROL SYSTEM EMPLOYING POWER AMPLIFIER WITH OUTPUT CURRENT LIMITING ARRANGEMENT
An arrangement for an elevator control system employing a power amplifier for supplying excitation current to a dynamo winding for controlling the speed of the elevator car wherein the magnitude of...
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3448364 |
ELEVATOR MOTOR CONTROL SYSTEM INCLUDING DYNAMIC BRAKING WITH MOTOR FIELD EXCITATION
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3436633 |
REGULATOR SENSING CIRCUIT FOR ALTERNATING-CURRENT GENERATOR
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3381194 |
Digital generator-fed motor control system
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3365637 |
Generator-fed motor speed control with both reference and feedback damping
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3365636 |
Brushless electric motor circuit
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3242407 |
Dual gain input circuit for generatorfed motor control system
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3225278 |
Generator-fed hoist motor control with load float control
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3219900 |
Direct current motor control systems
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3189809 |
Generator-fed motor control with bistable field control of generator and motor
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3183422 |
Generator fed plural motor system including voltage control, current control and slip control
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3155891 |
Regulator for electrodynamic power system with current limitation
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3133237 |
Rotary converter fed motor control for a vehicle
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3121833 |
Ward-leonard adjustable voltage motor hoist drive
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3102219 |
Motor control system for electrically powered vehicles
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3095530 |
Digital control apparatus for wardleonard electrical machines
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3093780 |
Electric motor control system
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3077554 |
Variable speed electromotive drive system
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3045161 |
Motor speed regulator arrangement
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3043957 |
Protection device for rotating anode x-ray tube
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2993158 |
Motor voltage regulator with adjustable rate control
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2982907 |
Control system
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2929983 |
Control apparatus
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2897427 |
Constant surface speed regulator
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2891206 |
Motor control circuit for constant cutting speed lathe
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2889502 |
Constant tension system
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2888621 |
Electric drive
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2841752 |
Electric control systems particularly suitable for ward-leonard drives
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2798991 |
Reel motor control systems
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2786974 |
Automatic voltage control systems
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2785359 |
Variable voltage motor control
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2785362 |
Adjustable voltage drive
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