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US20080096482 |
FAN CONTROLLER
A fan control system includes a main fan controller and at least one auxiliary fan controller. The main fan controller has circuitry for running a fan on a preset cycle, the preset cycle having a... |
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US20090304368 |
COMMUTATOR MOTOR COMPRISING A DEVICE FOR CONTROLLING THE ANGULAR POSITION AND ROTATIONAL SPEED OF THE ARMATURE THEREOF
An electric commutator motor comprising a housing and a shaft which is solidly connected to a rotor. The housing comprises a stator and supply brushes which can be connected to an electric power... |
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US20090304369 |
DRIVE AND EVALUATION UNIT
The invention relates to a drive and evaluation unit for displacing an object to be displaced, particularly for raising and lowering a side window in a motor vehicle. The drive includes a... |
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US20100014843 |
FAN CONTROLLING CIRCUIT
A fan controlling circuit for detecting rotational speed of a fan, includes a comparison circuit and a controlling chipset. The comparison circuit receives a rotational speed signal from the fan... |
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US20090175601 |
MOTOR CONTROLLER AND MOTOR CONTROL METHOD
A motor controller calculates a motor torque command based on motor speed and causes a motor to generate a torque corresponding to the motor torque command, to drive a machine load coupled to the... |
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US20090097830 |
MOTOR DRIVE DEVICE PROVIDED WITH DISTURBANCE LOAD TORQUE OBSERVER
A motor drive device (10) including a velocity command preparing means for preparing a velocity command value of a motor (20), a velocity detecting means (21) for detecting a velocity of the... |
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US20080170841 |
Medical Handle
A medical handle comprises a drive unit and a control device or circuit for driving a medical tool. The control device or circuit comprises a control and/or regulating circuit for controlling... |
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US20110158614 |
MOTOR ROTATION SPEED CONTROL DEVICE AND METHOD THEREOF
A motor rotational speed control device for controlling a direct current (DC) brush motor is provided, which includes a motor driver, a detection unit and a central processing unit (CPU). The... |
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US20130207573 |
SYNCHRONOUS CONTROL APPARATUS FOR SPEED-REDUCING DC MOTOR
The present invention relates to a synchronous control apparatus for speed-reducing DC motor, comprising a speed-reducing DC motor and a controller, wherein said speed-reducing DC motor comprises... |
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US20110274415 |
Method for ascertaining measured values in a cyclically controlled system
A method for ascertaining measured values in a cyclically controlled system, the cyclic control having control time periods in which the system is controlled, and no-control time periods in which... |
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US20070274692 |
MOTOR DRIVING CIRCUIT
According to some preferred embodiments of the present invention, a motor driving circuit includes a phase detection circuit configured to detect a rotation phase of a motor and output a phase... |
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US20070201842 |
Switched Dc Electrical Machine
A switched DC rotating electrical machine (100) comprising a stator (3), a rotor (2) and switching means (11a, 11b, 18a, 18b), an excitation winding (5) associated with one of the stator (3) or... |
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US20080124059 |
Constant voltage power supply circuit, constant voltage supplying method, and portable constant voltage power supply device, electric reel, fishing rod supporting tool, and fishing rod holding device that use the same constant voltage power supply circuit
A constant voltage power supply circuit includes oscillation means; a step-up or step-down circuit including coil means and capacitive means; detecting means that detects an outputted voltage... |
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US20050135794 |
Method and system for negative torque reduction in a brushless DC motor
A method for reducing negative torque in a brushless single phase DC motor, the method includes initiating the motor in a normal mode of operation and activating an ON time control to cut off a... |