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WO/2009/000996A2 |
The invention relates to a rotary electric machine including a first member (10) capable of generating a rotating magnetic field relative to the first member and a second member (6) provided with a winding through which can flow a curren...
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WO/2008/155156A2 |
The effectiveness with which an electric tool (10) having a rechargeable battery (24) can be operated is dependant on the temperature prevailing in the electric tool (10). In order to increase the operation of the electric tool (10) at l...
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WO/2008/153576A1 |
A motor starter is disclosed. The motor starter includes control circuitry integrally arranged with at least one current path and a processor included in the control circuitry. The motor starter further includes at least one processor al...
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WO/2008/145647A1 |
The invention relates to a circuit arrangement for the selective operation of at least two electric machines (1, 2) that are each supplied via a plurality of phase lines, comprising: - one voltage protection module (5) for limiting an in...
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WO/2008/138454A2 |
The invention relates to an electric drive which comprises at least one motor (31) which is or can be supplied with an electric motor current (30) by means of a converter (26), a current regulator (22) by means of which the motor current...
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WO/2008/140153A1 |
A self-magnetizing motor incorporates a control circuit that starts the motor, controls a magnetizing unit, and then operates the motor. The control circuit can include relay, such as a bi-directional conductive power semiconductor devic...
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WO/2008/130560A1 |
A mover (344) moving a stage (238) along a first axis and about a second axis includes a magnetic component (454), and a conductor component (456). The magnetic component (454) includes one or more magnets (454D) that are surrounded by a...
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WO/2008/130411A1 |
A solid state soft start controller system (10) has a power supply (20), an electric motor (34), a thyristor (18) electrically interconnected between the power supply (20) and the electric motor (34) so as to selectively allow current to...
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WO/2008/130648A1 |
A method and apparatus are provided for providing one or more brushed motor control signals for controlling the operation of a brushed motor, including a signal for disconnecting the power applied to the brushed motor so that the brushed...
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WO/2008/130957A1 |
A method of controlling a motorized window treatment provides for continued operation of the motorized window treatment during an overload condition, a low-line condition, or an electrostatic discharge (ESD) event. The motorized window t...
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WO/2008/113140A1 |
The present invention relates to a control system, a method and arrangement for motors and motor-compressors, designed for operation in a wide voltage range of the feed network. The control system, method and arrangement for motors and m...
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WO/2008/110209A1 |
A method and a system are proposed to start at least two AC motors (SM, IM) which are supplied by a power converter (8) via a common AC bus (7). A synchronous motor (SM), which is one of the at least two AC motors, is started first. Afte...
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WO/2008/096090A1 |
The invention relates to a device for controlling the speed and the rotation direction of an asynchronous motor (1), comprising a first circuit (7) with two bi-directional switches (T'4, T'5) individually controlled and having first cond...
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WO/2008/087956A1 |
It is possible to eliminate the need of a voltage detector for detecting an input voltage of an AC motor and to smoothly start an AC motor without making a trip by failure of a control device. In as method for starting an AC motor of a p...
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WO/2008/086608A1 |
A wind turbine and method of operation thereof uses a plurality of generators and a controller to control the operation of the turbine based on various parameters. The generators are each smaller than the total power capacity of the turb...
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WO/2008/083957A2 |
The invention relates to a simple control method for a motor-driven adjusting device (1) for use in a motor vehicle, which method allows a reliable operation of the adjusting device. The invention is characterized in that prior to any au...
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WO/2008/064956A1 |
The invention relates to pulse-width-modulation driving of a manually operated electric machine tool with rechargeable-battery power supply, with a pushbutton which can be actuated by an operator and whose push-button travel is converted...
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WO/2008/050575A1 |
An inexpensive, productivity-enhanced single-phase AC synchronous motor in which stabilized synchronous pull-in can be carried out by suppressing generation of counter torque during a starting operation. Starting operation is performed w...
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WO/2008/047961A1 |
A driving apparatus for a fan using multiple HIMs capable of enhancing a reliability by sequentially driving multiple HIMs with a low voltage by using an NTC (Negative Temperature Coefficient) characteristic. The driving apparatus for a ...
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WO/2008/038125A2 |
An electronic starter device (1) for an electric motor (2) including a first terminal (11) connected in use to a mains voltage source (7) selectively activatable by means of control means (8) to feed respective starter (3) and run (4) wi...
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WO/2008/039183A1 |
Various systems and methods for controlling DC motors are disclosed herein. For example, one method provides for controlling a polyphase, brushless DC motor. The method includes providing a DC motor that has a plurality of phases. Such a...
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WO/2008/033088A1 |
A method for reducing the influence of a DC component in a load current of an asynchronous three-phase motor, in which the voltages of two of the three phases are controlled by adjusting firing angles of semiconductor devices of the type...
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WO/2008/033033A2 |
Method and system for start and operation of an electrically driven load, e.g. a compressor (1) or pump, by power supply from a mechanical driver, e.g. a turbine or combustion engine, whereby the load is mechanically connected to a first...
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WO/2008/028798A1 |
In order to enable in a motor system (1), in which a soft start of the motor (2) has been implemented, the operation of the motor (2), wherein the power consumption is reduced, it is proposed to operate the driver circuit (5) during a sw...
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WO/2008/028798A2 |
In order to enable in a motor system (1), in which a soft start of the motor (2) has been implemented, the operation of the motor (2), wherein the power consumption is reduced, it is proposed to operate the driver circuit (5) during a sw...
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WO/2008/025236A1 |
A cable controller comprises a MCU for controlling a indicator light and a buzzer, sampling a fingerboard and managing the communication with a motor controller, a drive circuit for driving the indicator light and the buzzer, a cable com...
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WO/2008/027873A2 |
A solid state reversing AC motor starter that employs a DC power source and a power bridge emρloying insulated gate bipolar transistors that provide an ungrounded three phase AC output. The AC output is connected to the power input of t...
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WO/2008/017248A1 |
An electric control system comprises a combined switch (SA), a conversion switch (SE), a startup pushbutton (SF), a stop pushbutton (SS), and a middle relay (KS). One end of the combined switch (SA) is connected between the conversion sw...
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WO/2008/014681A1 |
A discrete frequency soft starting method and its device for an electric machine, trigger signals generated by a control system act on sets of inverse parallel thyristor valves (SA,SB,SC,SD,SE) connected between the supply and the electr...
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WO/2008/009045A1 |
A multi-purpose drive system for a combustion engine, said drive system comprising: an AC motor adapted to drive the engine, a motor controller arranged for regulating at least one functional parameter of the motor and/or engine by contr...
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WO/2007/141075A1 |
In a machine, as for example a construction machine, a production machine, or a robot, cargo is moved by means of a drive via a gear mechanism. To start the movement, static friction must be overcome. According to the invention this occu...
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WO/2007/134764A1 |
In order to simplify the changeover of an accelerated synchronous electric motor (4) on a run frequency converter (3) from being stopped to an operating speed on a power frequency converter (2), the invention proposes that both converter...
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WO/2007/137186A2 |
An interface system prevents operational interference between a vehicle power door and a ramp of an access system by interrupting power to the motors and actuators responsible for operating the door. The interface system includes a relay...
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WO/2007/134605A1 |
A method is disclosed for starting an electric motor (2), in which the motor (2) is supplied with current (4) via a starting circuit (1) having multiple paths (5, 6, 7), and the current (4) is conducted through various paths (5, 6, 7) on...
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WO/2007/136198A1 |
An apparatus and method for controlling starting of a motor are disclosed. An exciting coil of a motor is excited by using a controller of an electronic refrigerator without having an extra excitation control circuit, to thereby simplify...
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WO/2007/125251A1 |
The invention relates to a motorized system for closing a building, of the roller shutter type with the particular feature that it has a two-phase asynchronous motor which comprises two windings (2; 3) and is combined with a speed-varyin...
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WO/2007/106599A2 |
Embodiments of the invention provide a control system for a garage door. The control system can include a motor, a pulley, a synchronous drive member, a carriage, and an operator. The pulley can be coupled to and driven by the motor. The...
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WO/2007/098938A1 |
The invention relates to a drive unit for an adjusting device for an adjustable element of a vehicle, having an electric drive, and to an associated method. The invention also relates to an adjusting device for an adjustable element of a...
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WO2006131937B1 |
A low cost switching system for an electrical motor, which is speed sensitive, direction of rotation insensitive, load insensitive and voltage fluctuation insensitive. The switch contains a power supply, a control circuit, a zero cross d...
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WO/2007/089651A2 |
A process transmitter includes a manually operated power generator to provide electrical power to sense a process variable, produce an output based on the sensed process variable, and provide a display of the output.
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WO/2007/084140A1 |
A motor starting apparatus (10) includes a motor starting relay (112) to switch a motor starting capacitor (110) into a motor circuit across a run capacitor (111). The system control (116) includes an electronic voltage measurement circu...
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WO/2007/083447A1 |
An electric circular saw (A) having a soft start function with which the rotational speed of a motor (9) reaches a preset speed in a constant speed operation region after a predetermined soft start time after the start of the motor. Resp...
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WO/2007/081675A2 |
A control system for a vehicle includes a controller, an object sensor, and a motor. The motor receives power from a power source upon receiving a panel control signal. The motor moves a movable panel of the vehicle along a path between ...
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WO/2007/074092A2 |
By this invention, in a motor (1) comprising a control unit (3) and a thermic protector (4) which protects the motor (1) from high temperature and current values, by estimating the state of the thermic protector (4), the startup of the m...
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WO/2007/074081A1 |
The present invention relates to an electric motor (1) which can be operated at variable speeds. In the electric motor (1) of the present invention, the relays (5) are situated between the windings (4) in all the phases (7) except one ph...
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WO/2007/071520A1 |
The invention relates to a method and a device for controlling and/or regulating an electric motor. Such electric motors are used, for example, in motor vehicles, as pump motors. The electric motor is generally provided with electrical p...
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WO/2007/057045A1 |
When manufacturing a starting device (100) for a three-phase electric motor, especially a soft starter, arc quenching system (230) is at least partly removed from a commercially available contactor (200) that so becomes to a modified con...
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WO/2007/056725A2 |
Brushless repulsion motors are presented, in which rotor coils switching signal detectors are selectively located in spaced angular relationship on the rotor and signaling sources are distributed around all or most of the stator circumfe...
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WO/2007/047143A1 |
A system, method, and device for monitoring an AC induction motor are disclosed. The exemplary system provides the architecture of an intelligent motor controller. On one hand, the controller has self-commission and adaptive tuning capab...
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WO/2007/043750A1 |
The present invention relates to a compressor (5) and a refrigerator with the same, and more particularly, to a power saving type compressor which can prevent unnecessary consumption of a current for the compressor to have high energy ef...
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