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WO/2008/093872A1 |
A switched reluctance motor (SR motor) control apparatus (10) comprises a current command value calculating part (51) that generates a current command value in accordance with a target output of an SR motor (11); a rotational speed calcu...
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WO/2008/084775A1 |
It is possible to provide an inverter compressor operation method and a compressor drive device which reduce a leak current. A boot capacitor (407) functions as an operation power source of a high-arm side transistor (401) arranged in an...
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WO/2008/072525A1 |
Provided is a shaft-type linear motor positioning device capable of performing a highly-accurate positioning by a linear scale and reducing the installation range of a magnetic scale so that the device can be used even in a field requiri...
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WO/2008/069205A1 |
A motor drive control apparatus, an electrically driven assist apparatus and a responsiveness feedback control method wherein even if a target rotational speed oscillates during a low speed operation, the occurrence of hunting of the rot...
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WO/2008/062125A1 |
The invention relates to a method for controlling the driveability of the rear wheels of a hybrid automotive vehicle, in which a driving torque is applied to the rear wheels (7, 8) by an electric traction machine (5) while a driving torq...
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WO/2008/058436A1 |
An electric reciprocating motion device comprises a casing (7), a mounting bracket (4) disposed within the casing (7), a motor (1) and its power supply (9) mounted and fixed on the mounting bracket (4), and a motion head (6) connected wi...
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WO/2008/056580A1 |
A superconductive rotating electric machine drive control system exhibiting a high efficiency and having a small size and a light weight and a superconductive rotating electric machine drive control method applied to the system. The supe...
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WO/2008/053441A1 |
The adapting system for a resonant drive appliance includes a circuit for measuring the back EMF induced in the stator coil of the motor following turn-off of the appliance. The frequency of the back EMF signal is determined from the zer...
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WO/2008/050918A1 |
Disclosed is an apparatus and method for driving a 2-phase SRM. The method comprises initializing 2-phase based on a detected position of a rotor by an initializing sensor at the time of an initial driving, and normally driving 2-phase b...
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WO/2008/050919A1 |
Disclosed is an apparatus and method for driving a 2-phase SRM capable of individually performing an initial driving by an initializing sensor and a normal driving by a driving sensor, and capable of controlling a rotation speed of the S...
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WO/2008/047430A1 |
A power converter comprising a converter for converting AC power into DC power, a converter controller for controlling the output voltage of the converter, an inverter for converting the DC power into AC power of variable frequency, an i...
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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/2008/041395A1 |
An algorithm for increasing a powering torque outputted when a target torque To is outputted in the same direction as the operating direction as the controlled variable X of an operating lever (2) increases and for decreasing the powerin...
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WO/2008/040135A1 |
The invention relates to a method for the bidirectional control of an electric motor alternatively driving the cutting blade of a surgical or dental instrument in one direction or in the opposite direction, characterised in that it compr...
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WO/2008/038695A1 |
Provided is a method for controlling a plurality of AC linear motors of the same specification which are connected to one another and simultaneously operated so that a set of linear motors having a desired thrust appears to be operating ...
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WO/2008/026270A1 |
Provided are an electric motor driving device which is constituted either to reduce the capacity of a condenser for smoothening a DC voltage after an AC power source was rectified or to eliminate the condenser, thereby to reduce the size...
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WO/2008/026541A1 |
A reluctance motor (1, 11) in which the magnetic saturation is reduced and the reluctance torque is enhanced and a reluctance motor control method are disclosed. The rotor (11) is a magnetic body having portions (111) projecting only fro...
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WO/2008/026642A1 |
Provided is a power supply device for a permanent magnet field type linear motor capable of controlling power supply to coils of the respective phases of the linear motor so as to reduce irregularities in thrust generated in the coils of...
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WO/2008/026639A1 |
Provided is a method for controlling a reluctance motor, by which reluctance torque is increased. In the method, first to sixth controls are performed. In the first control, a current is permitted to flow only in a first coil (121). In t...
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WO/2008/023688A1 |
A motor driver performing improved control of driving an AC motor. On receiving a drive signal outputted from a microcomputer (1), a phototriac (7) supplies an AC current from an AC power supply (E1) to an AC motor (M1). Only when the va...
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WO/2008/019754A2 |
The invention relates to a method for determining the dirtiness of a cutting tool as well as a hair cutting device comprising an apparatus for determining the dirtiness of the cutting tool thereof. Said method is designed for cutting too...
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WO/2008/010213A2 |
Apparatus for controlling the voltage supplied to a load, comprising: a multi-phase transformer having a primary and a secondary winding for each phase, each secondary being connected in series between an input line and an output directe...
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WO/2008/001445A1 |
[PROBLEMS] To propose an AC rotating machine controller for suppressing a great variation of the amplitude of an AC phase current even a variation of the temperature of an AC rotating machine and capable of stable starting the AC rotatin...
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WO/2007/144959A1 |
A power converter control circuit includes: voltage instruction means for generating a voltage instruction signal; power instruction compensation means for compensating the voltage instruction signal and generating a compensation voltage...
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WO/2007/142730A1 |
A method utilizing elevated temperature and applied pressure to form a layered, composite-material structural panel including (a) establishing a layer-stack assembly in the form of a pre-consolidation expanse having everywhere an indepen...
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WO/2007/129359A1 |
A control apparatus for a multiphase AC electric motor having an inverter, wherein a current control means (23) comprises an abnormal-state current controlling means (30) that is used during any abnormal state; an abnormal-state determin...
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WO/2007/129627A1 |
A damper for automobiles capable of producing good damping effect with a simple structure while ensuring high reliability. The damper is used for reducing the vibration of an automobile body and attached to the automobile body. The dampe...
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WO/2007/126024A1 |
Provided is a servo motor control device capable of improving current control loop response and preventing vibration of a servo motor. The servo motor control device includes: current detection means for detecting an output current value...
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WO/2007/123323A1 |
An apparatus for controlling an operation of a reciprocating compressor, includes: a control unit for detecting a current pushed amount of a piston when a TDC is detected as an inflection point of a phase difference between stroke and cu...
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WO/2007/114109A1 |
An AC motor driving apparatus which can utilize a conventional PWM system as it is, even for a microminiature motor having extremely small number of turns of an exciting coil without generating vibration or noise. An AC motor control met...
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WO/2007/113651A2 |
In a ring body (21) of a stator (20), permanent magnets (24) are arranged in alternate inter-pole magnetic path portions (23) located between an even number of stator poles (22) so that magnetic fields pointing in the circumferential dir...
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WO/2007/114058A1 |
Provided is a magnetic pole position detection method capable of detecting a position of a magnetic pole with the least motion of a movable element. The permanent magnet synchronization motor magnetic pole position detection method for d...
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WO/2007/110328A1 |
The present invention relates to an injection moulding machine for the production of injection mouldings via the injection of at least one plastifiable material into a mould, using at least one injection mould. The injection moulding mac...
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WO/2007/098973A1 |
The invention relates to a method for the closed-loop control of a linear drive (2), which has a stator (4), a rotor (5) which is capable of moving to and fro along a drive axis (9) therein, and a drive coil (6) through which a coil curr...
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WO/2007/089529A2 |
An axial flux electric motor comprising a rotor and a first and second stator. The first and second stators have a first and second air gap located between the first and second stators and the rotor, respectively, and the second air gap ...
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WO/2007/089083A2 |
The present invention discloses a control apparatus for a linear compressor which can vary a cooling force and prevent an inrush current. The control apparatus for the linear compressor includes a coil winding body (L) laminated on the l...
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WO/2007/080022A1 |
The invention relates to a method and a circuit for regulating the speed of a commutator series-wound motor, especially a universal motor (10), which is supplied with a current from an a.c. voltage source (22) by means of a semiconductor...
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WO/2007/081153A1 |
The present invention relates to an apparatus and method for controlling a hybrid motor, and more particularly, to an apparatus and method for controlling a hybrid motor, which uses a permanent magnet instead of a field coil for a rotor,...
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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/2007/072365A1 |
An adaptive system for a personal care appliance, such as a power toothbrush, having a workpiece which is driven through an amplitude of motion by a drive mechanism which includes a stator member includes a circuit (13) for measuring ave...
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WO/2007/066182A1 |
In the rectangular-wave voltage control mode, torque feedback control, in which the voltage phase (ϕv) of the rectangular-wave voltage is adjusted based on the deviation of the torque estimated value (Trq) from the torque command value ...
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WO/2007/061901A2 |
An AC motor speed controller includes a plurality of capacitors that may be selectively switched, by means of controllably conductive switches, into series electrical connection with an AC motor and an AC voltage source to control the sp...
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WO/2007/057817A2 |
A driver (1) supplies an output voltage (VL) to an inductive load (30). The driver comprises an input to receive a pulse width modulated control signal (CS) having a controllable duty cycle within a predetermined range. A first switch ci...
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WO/2007/051690A1 |
In order to operate an electrical appliance, particularly an electrical household appliance, by means of an appliance control device (GS) which is designed for operating a drive system comprising a universal electric motor and feeds supp...
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WO/2007/052026A1 |
A flux switching electric motor (102) is disclosed. The motor comprises a rotor (104), a stator (106), field windings (124, 126) and armature windings (128, 130). #A microcontroller (134) controls supply of electrical current to the fiel...
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WO/2007/040821A1 |
A selectively configurable electric motor (20) comprises a stator (22) and a plurality of poles (28) electrically coupled to the stator. The selectively configurable electric motor also includes an actuator (24) separated from the poles ...
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WO/2007/039487A1 |
The invention relates to an electronic intermediate DC circuit which is to be used in brushless electric motors (1) such as reluctance motors and comprises a rectifier bridge (5) composed of diodes (4) and a capacitor that is connected d...
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WO/2007/040443A1 |
The invention relates to a method for power control of an electric motor, in particular a motor for driving the suction fan of a vacuum cleaner connected to an AC mains power supply. The power control is effected by varying the phase ang...
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WO/2007/036430A1 |
Electric energy is transferred to the magnet field coils of a rotor of an electric machine. The magnet field coils are made of a super-conductive material, such that the rotor is located in a shielded manner in a low temperature range. A...
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WO/2007/036441A1 |
The invention relates to an electrical machine, in particular a three-phase alternator (10), having a claw-pole rotor (11) with direct-current excitation, and having a stator winding (16) which is inserted into the slots in a laminated s...
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