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Matches 1 - 50 out of 11,290

Document Document Title
WO/2018/007424A1
A method and apparatus is described in which a series of short-circuiting pulses is applied to a motor. A current in the motor is determined after one or more of the series of short circuit pulses has completed. The duration of the short...  
WO/2018/002077A1
A method for starting an induction machine (12) without residual flux comprises: scanning a state of the induction machine (12) with different stator frequencies (ωs, 28) by controlling a supply voltage (Vs) applied to the induction mac...  
WO/2017/221595A1
Provided is a capacitor-start single-phase induction motor with which a large startup torque can be obtained. This single-phase induction motor is equipped with: a main coil; an auxiliary coil connected in parallel to the main coil; a ca...  
WO/2017/211434A1
A controller for a drive motor (60) of a product conveyor belt at a checkout has a phase-gating and/or phase-chopping controller (50) which controls the drive motor (60) in such a manner that the product conveyor belt is accelerated with...  
WO/2017/208229A1
An electronic locking apparatus for locking a cabinet doors, single or multistage drawer and a controlling method thereof are provided to lock or unlock easily by using an electronic manner instead of a key. The lock actuator is mounted ...  
WO/2017/202327A1
A star-delta switching starter for a three-phase alternating-current motor comprises three three-pole air circuit breakers, including a main switch circuit breaker (1), a star circuit breaker (2), and a delta circuit breaker (3). The mai...  
WO/2017/202530A1
The invention relates to a method for improving a starting process of an internal combustion engine (300) by means of a belt-driven starter generator (100), which has a stator winding (11) and a rotor winding (12), wherein the starter ge...  
WO/2017/186906A1
The invention relates to an apparatus (4) for operating an electrical load (2), in particular an electric motor (3), having a supply connection (Ubat) which is connected/can be connected to an electrical energy source, having a load conn...  
WO/2017/187128A2
A method for controlling an electric motor having a rotor, the method being carried out after a shut down of the motor has been initiated, the method comprising: starting a timer in a motor controller; performing regenerative braking to ...  
WO/2017/187128A3
A method for controlling an electric motor having a rotor, the method being carried out after a shut down of the motor has been initiated, the method comprising: starting a timer in a motor controller; performing regenerative braking to ...  
WO/2017/180132A1
Systems, apparatuses, and methods are disclosed herein for controlling winding configurations of an electric machine. The apparatus includes an operation condition circuit structured to receive data indicative of an operating condition o...  
WO/2017/178067A1
A compressor unit (2) for use in a refrigeration circuit, comprises at least two compressors (8, 10); and a common variable frequency drive (6), configured to be connected to a three phase grid voltage supply (4); each compressor (8, 10)...  
WO/2017/178760A1
The invention mainly relates to a combustion engine starter for a motor vehicle, comprising: - an electric motor (DCM) comprising wound poles and/or permanent magnets and a separate assembly of windings (Wm), - a device for increasing th...  
WO/2017/180256A1
The method is for making an electric motor more efficient by iteratively changing when a processor sends activation signals to transistors (Q1, Q2) to minimize a current required to rotate a rotor (16) at a constant rotational speed. The...  
WO/2017/174957A3
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/174957A2
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/161614A1
A multiphase alternating current electric motor structure and a driving circuit thereof. The electric motor structure comprises a stator iron core and a stator coil unit wound thereon, wherein the stator coil unit is composed of two or m...  
WO/2017/153098A1
The invention relates to a motor starter (10) for an electric motor (20), wherein the motor starter (10) comprises a first and a second phase (12, 14). Said motor starter and electric motor each have an associated switching apparatus (29...  
WO/2017/118723A1
The invention relates to a vacuum pump drive (12) comprising at least one electric motor (18) which is connected to the rotor (14) of a vacuum pump (13) via a drive shaft (16), a frequency converter (20) which is electrically connected t...  
WO/2017/111480A1
The present invention provides a driving device of a starter motor. The driving device of the starter motor of the present invention comprises: a solenoid switch for switching a first contact point mediating between a battery and the sta...  
WO/2017/108301A1
The invention relates to a PM line-start motor and to a switch-on method therefor, preferably for motors having a power of at least 5 kW. The motors comprise a rotor and a stator having a stator winding, wherein the stator winding is des...  
WO/2017/103140A2
A system for controlling an AC motor is provided. The system comprises an electrical connection path for connecting an electrical input of the AC motor to a first phase of alternating current from an electric power supply. The system als...  
WO/2017/106216A3
A system may include a prime mover configured to provide mechanical energy to the system by spinning a shaft. The system further includes a synchronous AC generator mechanically coupled to the shaft, and an exciter mechanically coupled t...  
WO/2017/103140A3
A system for controlling an AC motor is provided. The system comprises an electrical connection path for connecting an electrical input of the AC motor to a first phase of alternating current from an electric power supply. The system als...  
WO/2017/103140A4
A system for controlling an AC motor is provided. The system comprises an electrical connection path for connecting an electrical input of the AC motor to a first phase of alternating current from an electric power supply. The system als...  
WO/2017/106216A2
A system may include a prime mover configured to provide mechanical energy to the system by spinning a shaft. The system further includes a synchronous AC generator mechanically coupled to the shaft, and an exciter mechanically coupled t...  
WO/2017/089461A1
The invention relates to a device (1) for operating an electric motor (EM) having an identifying unit (2) for identifying zero crossings and phase angles of applied phase-shifted sinusoidal voltage phases (L) of a polyphase voltage suppl...  
WO/2017/089094A1
The invention describes a method for pulse-width modulated (PWM) current control of a load current (IL) of an inductive load (L) by means of at least one switch element (T1) for switching the load current (IL), wherein a first operating ...  
WO/2017/074508A1
A system includes a variable frequency drive (VFD) comprising an inverter having an output configured to be coupled to a motor and a switch configured to couple a power source to the motor to bypass the VFD. The system further includes a...  
WO/2017/068274A1
The invention relates to a generator starter (30) of a turbomachine, comprising an asynchronous electric machine (11) configured so as to operate in motor mode during a starting phase of the turbomachine while being supplied by an electr...  
WO/2017/066307A1
Solar Motor Controller is an electronic device with DC power input terminals that may connect directly to solar PV panels, and output terminals that may connect directly to single or multiphase phase AC electric motors without requiring ...  
WO/2017/055188A1
The synchronous machine module comprises a synchronous machine and a rotational speed control device for controlling a rotational speed of the synchronous machine, which rotational speed control device has detection means for detecting a...  
WO/2017/048279A1
Various embodiments include determining an alternating current (AC) voltage and frequency of a supply voltage coupled to a circuit input. The circuit includes a soft starter circuit that is coupled between the circuit input and a first s...  
WO/2017/044537A1
Systems and methods for estimating an inertia, a Coulomb friction coefficient, and a viscous friction coefficient for a controlled mechanical system are provided. In one or more embodiments, an inertia and friction estimation system can ...  
WO/2017/031663A1
A centrifugal switch and a brushless liquid-resistance electric motor starter with same. The centrifugal switch comprises a stationary electrode (7, 7') fixedly arranged on a liquid storage box shell (1) of an electric motor starter and ...  
WO/2017/023249A1
A magnetization state control method for a variable magnetization machine, the method includes generating a flux linkage vector while changing a magnetization state of the variable magnetization machine such that a trajectory of the flux...  
WO/2017/020177A1
A motor control circuit (30) comprises a plurality of power units (31-36). Each of the power units comprises a first power element (Q1) and a second power element (Q2) connected in series with the first power element (Q1), and the connec...  
WO/2016/207617A1
A control unit for use in controlling a switched reluctance motor (SRM) for clockwise rotation in a clockwise-rotating electric supercharger and anti-clockwise rotation in an anti- clockwise-rotating electric supercharger. Each SRM has a...  
WO/2016/198981A1
An electric drive unit for driving devices connectable therewith comprises at least one- permanent magnets assisted reluctance motor (2) and switching elements (11) operatively associated to the at least one reluctance synchronous motor ...  
WO/2016/198474A1
A starter system for start up of a combined heat and power unit comprising a generator which is connectable to the grid. The starter system comprises a variable frequency drive, VFD, operable to receive power from the grid. The VFD reduc...  
WO/2016/192837A1
The invention relates to a compressor (400') for generating compressed air, in particular for a compressed air supply system (1000) of a vehicle, comprising the following: - an electric motor (500) in the form of a brushed DC electric mo...  
WO/2016/188007A1
A motor starting control method for a cooling fan of a railway locomotive. A target value of an output frequency of an inverter is set as a relatively low value F1, the output frequency of the inverter is controlled according to a relati...  
WO/2016/184601A1
The invention relates to a circuit arrangement for controlling an electric machine, in particular an electric motor and/or a generator. The circuit arrangement has at least one power module and a processing unit. The power module has at ...  
WO/2016/184651A1
The invention relates to a variable speed drive system. The variable speed drive system has a drive machine (3) and a drive machine (1) which is mechanically coupled or can be coupled to the drive machine (3) by means of a transmission u...  
WO/2016/182644A1
A compressor for commercial refrigerators comprises an electric motor having a start winding (120) and a run winding (130), in which the input terminals of the start winding (120) and the run winding (130) are connected together and to t...  
WO/2016/177547A1
The invention relates to a domestic appliance (100) having an electric drive, a voltage supply (109) for supplying the actuator (112) to which an electric drive is connected downstream and which has an electric supply voltage, and a cont...  
WO/2016/151160A1
The invention relates to a generator of electrical current by movement and induction by means of permanent magnets and resonant coils according to an envelope housing a circular solid element in the form of a rotor in which a variable ma...  
WO/2016/145851A1
Disclosed is an electronic type starter, comprising a housing (1), a first pin (2), a second pin (3), a first reed (4), a second reed (5), a first thermistor (6), a second thermistor (7) and a bidirectional thyristor (8); and further com...  
WO/2016/148883A3
A switch mode power supply may utilize a switching signal to control one or more power switches in the switch mode power supply. A switch mode power supply controller may generate and/or control this switching signal. The controller may ...  
WO/2016/143481A1
A synchronization control unit 3 operates a power converter INV by means of V/f control, with a first on/off switch S1 being "off" and a second on/off switch S2 being "on". A utility synchronization current control unit 4 operates the po...  

Matches 1 - 50 out of 11,290