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Patent Searching and Data


Matches 551 - 600 out of 22,562

Document Document Title
WO/2006/005563A1
The invention relates to a quenching device (LOV) for a converter bridge (SRB) with line regeneration, whereby the converter bridge controlled by a network-timed control circuit (AST) by ignition pulses is connected with its three inputs...  
WO2005112221A3
A cordless power tool may include tool identification circuitry to provide a tool identification signal to a battery pack. The tool identification signal may be representative of data particular to the cordless power tool. A method may i...  
WO/2006/005564A1
The invention relates to a method for controlling a quenching device (LOV) for a converter bridge (SRB) with line regeneration, whereby the converter bridge controlled by a network-timed control circuit (AST) by ignition pulses is connec...  
WO2005104332A3
In a resonant motor system, an electrical motor 10 having a stator 14 with one or more windings, a rotor 12 which may or may not be wound, and an air gap 16 between the stator 14 and the rotor 12 for storing magnetic energy such that the...  
WO/2006/001480A1
A control unit of a motor driver automatically operates a linear motion device according to a given drive condition. An error judgment value setting unit samples the peak of the current supplied to the linear motor during the automatic o...  
WO/2005/124960A1
Disclosed are a method and the use of a device which is operated according to said method in order to detect a blockage of a DC motor (10), especially a DC motor (10) for a motor vehicle fan. According to the invention, the DC motor (10)...  
WO/2005/124991A1
Disclosed is a circuit arrangement and a method for adjusting the power input of a load, particularly a load of a cooling fan motor (10) of a motor vehicle, which can be operated on a direct current supply network (13,15), comprising at ...  
WO2004098261A3
A controller (28) for a doubly fed induction generator (12, 20) adjusts control signals to a rotor side converter (24) and line side converter (22) to adjust rotor current when a voltage transient on a utility grid (10) occurs, so that t...  
WO/2005/121890A1
An actuator drive circuit for a shutter capable of operating an actuator with high precision. The actuator drive circuit (1) for shutter comprises a counter (12) which starts counting frequency division clocks produced by dividing the fr...  
WO/2005/122368A1
A moving magnet linear slider in which the effect of microvibration is minimized at the time of driving a linear motor, the servo gain can be increased easily, and the speed ripple can be suppressed. The moving magnet linear slider compr...  
WO/2005/121710A1
A position sensor generates a signal representative of the angular position and, if desired, angular velocity of a rotating object using only a single circular track and plural brushes that ride on the track when the object rotates. The ...  
WO/2005/117250A1
A coil load driving circuit capable of suppressing occurrence of radiant noise when a motor is at rest. The coil load driving circuit (1) comprises output buffers (11,12) for outputting PWM pulses to the two terminals of a motor (5); a t...  
WO/2005/112221A2
A cordless power tool may include tool identification circuitry to provide a tool identification signal to a battery pack. The tool identification signal may be representative of data particular to the cordless power tool. A method may i...  
WO/2005/108185A2
A control system for a powered wheel chair drive modulates a pulse power delivery signal such that power is delivered gradually at throttle positions corresponding to a low speed, and power is delivered more rapidly at throttle positions...  
WO/2005/109611A1
The invention relates to a commutator motor (1), which has a series excitation or shunt excitation and which, in particular, is suited for use as a drive motor for a washing drum of a laundry treatment device. The stator (4) of a commuta...  
WO/2005/107048A1
The invention relates to electrical engineering, in particular to valve electric drives fed by a DC-voltage source. The inventive valve electric drive comprises an electric motor whose stator is provided with a closed-coil distribution w...  
WO/2005/104332A2
In a resonant motor system, an electrical motor 10 having a stator 14 with one or more windings, a rotor 12 which may or may not be wound, and an air gap 16 between the stator 14 and the rotor 12 for storing magnetic energy such that the...  
WO2005062455A8
The invention relates to a device for power adjustment, by phase control of an alternating current, supplying an electrical user (14) and for reduction of the harmonic waves arising from the phase control, in particular, up to the region...  
WO/2005/094124A1
A motor (20) moves a fader (18). A motor driver (22) drives the motor (20). A switch circuit (26) is connected to the voltage control terminal of the motor driver (22). The switch circuit (26) switching-operates so as to selectively supp...  
WO/2005/088827A1
There is provided a motor including magnetic pole means having a plurality of coil strings alternately excited to different poles to which is faced a permanent magnetic pole string having permanent magnetic pole elements of alternately d...  
WO/2005/086341A1
The present invention provides a method for controlling the output power of a permanent magnet electric motor (102) using a control means (106). The control means (106) includes a means (134) for measuring motor speed (134) and motor pha...  
WO2005050332A3
An improved regulator system (10) is disclosed for controlling a field winding (23) of an alternator (20) to regulate the charging of a battery (30). The improved regulator system (10) has an internal regulator (50A) mounted onto the alt...  
WO2005011100A3
The invention relates to a speed control system for the motor of a fan and motor unit comprising a first and second transistors (3, 5) which are in parallel connected to each other and to a motor (1) through a continuous voltage source (...  
WO/2005/083878A1
The invention relates to a device for controlling an electric motor, especially in motor vehicles, said electric motor being used for the setting of a setting element actuated by one such electric motor, according to the deviation of an ...  
WO/2005/081391A1
An existing control unit is switched to a current control unit in a short preparation time and working hours, and a time and a cost required and a quantity of industrial waste generated by the switching are reduced. The control unit is p...  
WO2005011099A3
A generator-motor apparatus (100) includes a control circuit (20), an alternator (50), electrode plates (83, 84), and switching devices (SW1 to SW6). The electrodes plates (83, 5 84) have a' substantial horseshoe shape, and are provided ...  
WO/2005/078538A1
A barrier movement operator (10) including a sensing device (110) for generating motor signals representing an operational variable of the motor (106), a position sensor (128, 127) for detecting the rotation of motor (106), a controller ...  
WO/2005/078223A1
Disclosed is an electric circuit arrangement for influencing a power switching element on the output side associated with an electric motor which is used to adjust a unit provided in a motor vehicle. The aim of the invention is to ensure...  
WO/2005/070746A1
The invention relates to a method for determining a time mean of a pulse width-modulated current of an electric motor of a motor vehicle. According to said method, a plurality of measuring values of a measuring variable that has a known ...  
WO/2005/071423A1
It is possible to reduce torque ripple of a motor attributed to a rotation detection device. A frequency multiplier (51) multiplies a rotation angle Ѳ of a detection object by the ripple frequency m per one rotation of the detection obj...  
WO/2005/071823A1
The invention relates to a module for varying the speed of a motor (GM), comprising a reverse battery protection (T1) that is electrically connected to a distribution voltage source (UB). If the voltage source (UB) cannot supply the requ...  
WO/2005/069476A1
A three-phase electric power converting apparatus for driving a DC electric motor (3) having a field coil (4), wherein a plurality of semiconductor switching elements having a three-phase electric power conversion function as well as a p...  
WO/2005/067133A1
A motor drive inverter control apparatus comprises a rectifier circuit for rectifying an AC power supply; an inverter circuit driven by an output of the rectifier circuit; a motor driven by an output of the inverter circuit; a first capa...  
WO/2005/067134A1
A power transistor protecting circuit of a motor drive circuit, a motor drive circuit, or a semiconductor device, wherein when a breaking of wire exists between the output terminal of a power transistor and another end of an exciting coi...  
WO/2005/062455A1
The invention relates to a device for power adjustment, by phase control of an alternating current, supplying an electrical user (14) and for reduction of the harmonic waves arising from the phase control, in particular, up to the region...  
WO/2005/062457A1
A three-wire reversing system for a permanent magnet, reversible, brush-type, direct current (DC) motor has a three-wire alternating current (AC) input voltage source which supplies electrical current to at least one capacitive element. ...  
WO/2005/058672A1
There is provided an electric power steering device for linearizing discontinuous non-linear characteristic generated in the relationship of the duty ratio between the motor current generated in the vehicle steering wheel return state an...  
WO/2005/057225A1
The invention relates to a method and an array for determining the rotational speed of a direct current motor, wherein an analogue/digital converter (5) is coupled to the supply terminal of a motor (1). Two man value generators (61, 62),...  
WO2005025024A3
The invention relates to an arrangement for isolating supply current from control devices, which satisfies higher safety standards while, however, being easy to operate. To this end, the inventive arrangement comprises a device for isola...  
WO/2005/057776A1
This invention relates to a low cost rotation motor rotation speed control circuit (1), that is utilized for DC electrical motors (2) of which their rotation speed is increased by applying Voltage Doubler (VD) method hence generating a h...  
WO/2005/055410A1
There is provided a DC motor drive device of the open loop control method. It is judged whether speed instruction data supplied corresponds to the DC motor drive instruction according to the speed instruction data. When it is decided tha...  
WO/2005/055400A1
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 the rotor (2) having a pair of inputs, the ...  
WO/2005/050332A2
An improved regulator system (10) is disclosed for controlling a field winding (23) of an alternator (20) to regulate the charging of a battery (30). The improved regulator system (10) has an internal regulator (50A) mounted onto the alt...  
WO/2005/046916A1
The invention relates to a power tool comprising a control device (48) for controlling at least one operating parameter, and a corresponding method. Said power tool comprises a motor (42) for driving a tool, at least three switching elem...  
WO/2005/041394A1
The invention relates to a circuit arrangement and a method for operating a pulse width modulation-controlled electric motor (10) in a direct current source (14,16), more particularly for operating a blower motor in the electric system o...  
WO/2005/041400A1
A device (1) including a DC actuator (3), a rectifier element (D1, D2) and a switch (K) controlling the actuator power supply by connecting the actuator to the power grid via the rectifier element. The device is characterised in that the...  
WO2004045059A8
A permanent magnet motor includes salient pole stator cores. The poles and/or linking portions therebetween are wound with a plurality of winding coil sets. Mutually exclusive speed ranges are established between startup and a maximum sp...  
WO/2005/031962A1
The invention relates to a control circuit for an inductive, electric consumer (20), particularly a direct current motor (30) of a ventilating device in an internal combustion engine, comprising a first circuit element (14) which is seri...  
WO/2005/025024A2
The invention relates to an arrangement for isolating supply current from control devices, which satisfies higher safety standards while, however, being easy to operate. To this end, the inventive arrangement comprises a device for isola...  
WO/2005/020424A1
A spike detection circuit (12) includes an A/D converter circuit (14) for converting an output from a differential amplifier circuit (A2) into a digital signal; and an offset calculation circuit (15) for setting, based on an output from ...  

Matches 551 - 600 out of 22,562