-
公开(公告)号：US11451180B2
公开(公告)日：2022-09-20
申请号：US16778941
申请日：2020-01-31
申请人： SUBARU CORPORATION
发明人： Daisuke Kato
IPC分类号： H03K17/567 , H02P25/02 , H01H47/02
摘要： A power supply system includes a power source, a relay, a switch, and a controller. The relay is interposed between the power source and a load. The switch is configured to be coupled to the load in a state where the switch allows or disallows for power supply from the power source to the load when the relay is in a closed state. The controller is configured to control an operation of the switch. The controller is configured to execute forced driving control at a time of a closing operation of the relay. The forced driving control causes the switch to operate independently of a request for driving the load and thereby causes power to be supplied from the power source to the load.
-
公开(公告)号：US20210367484A1
公开(公告)日：2021-11-25
申请号：US17313729
申请日：2021-05-06
申请人： Gerald K. Langreck
发明人： Gerald K. Langreck
摘要： A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets which alternate exposed poles, the rotor being connected to the shaft and surrounded by a stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form four magnetic poles, the stator being in electrical communication with a phase electric drive unit, wherein each of the poles exert a magnetic force upon the magnets carried by the rotor when the poles are electrically charged by the phase electric drive unit. The rotors and magnets of each phase motor element are offset about the shaft from one another. In addition, the phase motor elements are electrically isolated from one another.
-
公开(公告)号：US20200186012A1
公开(公告)日：2020-06-11
申请号：US16600013
申请日：2019-10-11
申请人： Gerald K. Langreck
发明人： Gerald K. Langreck
摘要： A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets which alternate exposed poles, the rotor being connected to the shaft and surrounded by a stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form four magnetic poles, the stator being in electrical communication with a phase electric drive unit, wherein each of the poles exert a magnetic force upon the magnets carried by the rotor when the poles are electrically charged by the phase electric drive unit. The rotors and magnets of each phase motor element are offset about the shaft from one another. In addition, the phase motor elements are electrically isolated from one another.
-
公开(公告)号：US20200169213A1
公开(公告)日：2020-05-28
申请号：US16447109
申请日：2019-06-20
发明人： Choong Seob Park
摘要： The present disclosure provides a brushless direct current (BLDC) motor overload detection apparatus. The BLDC motor overload detection apparatus includes a measurer for measuring an electrical angle of the BLDC motor, a determiner for determining whether a difference between the electrical angle measured by the measurer and a mechanical angle of the BLDC motor, estimated through current supplied to the BLDC motor, is within a predetermined range, and a driving controller for control of driving of the BLDC motor according to whether the BLDC motor stalls, determined by the determiner.
-
公开(公告)号：US10608563B2
公开(公告)日：2020-03-31
申请号：US15306361
申请日：2016-06-30
发明人： Seung Kwon Lee , Sun Pyo Lee , Ho Jun Lee , Sin Won Cho
摘要： The present invention relates to a driving control of a voice coil motor (hereinafter, referred to as ‘VCM’) which moves lens of a camera module, more particularly to a driving control method for VCM capable of reducing the noise generated at the time of initial driving or landing of the lens and reducing the moving time thereof, and the method is characterized by and include the steps of: applying a linearly increasing current with a first slope to the VCM up to a pre-set first inflection point in response to a camera operation-on command; and moving the lens to an infinite position by applying a linearly increasing current with a second slope less steep than the first slope to the VCM from the first inflection point to the infinite position.
-
公开(公告)号：US10103669B2
公开(公告)日：2018-10-16
申请号：US15413433
申请日：2017-01-24
申请人： Andras Lelkes , Adam Daniel Lelkes
发明人： Andras Lelkes , Adam Daniel Lelkes
IPC分类号： H02P23/00 , H02P25/00 , H02P27/00 , H02P23/14 , G05B13/02 , H02P25/02 , H02P21/00 , H02P21/14
摘要： A method to control a motor which is electrically excited. The method includes providing a unit capable of learning which is configured to analyze processes in a machinery into which the motor is built so as to learn to optimally control a variable motor flux. The unit capable of learning thereby sets the variable motor flux so as to minimize motor losses absent an adverse impact on a dynamic property of a drive
-
公开(公告)号：US20180234044A1
公开(公告)日：2018-08-16
申请号：US15955864
申请日：2018-04-18
申请人： Summit ESP, LLC
CPC分类号： H02P27/047 , H02K17/16 , H02M5/458 , H02M5/4585 , H02M7/00
摘要： An electric submersible pump (ESP) variable speed drive (VSD) controller is described. A VSD control system includes a pump assembly including an induction motor operatively coupled to a pump, a power cable and a transformer electrically coupled between the induction motor and a VSD controller that controls a speed of the induction motor, the VSD controller including a converter section that sends a direct current (DC), a DC link including a DC smoothing capacitor that smooths the DC, an inverter that converts the smoothed DC to a pulse width modulated (PWM) output voltage, the inverter including at least one silicon carbide (SiC) power semiconductor module, and a PWM filter that filters the PWM output voltage to produce near sinusoidal voltages, the PWM filter including inductors, and the PWM filter sending voltage to the transformer.
-
公开(公告)号：US10033255B2
公开(公告)日：2018-07-24
申请号：US15622538
申请日：2017-06-14
发明人： Sangjin Park , WoongChan Chae , Jungwoo Lee
摘要： A driving motor includes a rotor body that is rotatably installed inside a stator with a predetermined void therebetween and has a rotor coil wound on multiple rotator teeth. The rotor body includes: i) multiple wedges inserted between the rotor teeth of the rotor body in an axial direction and supporting the rotor coil; and ii) end coil covers mounted on both axial ends of the rotor body, respectively and connected with the wedge members. Each wedge member includes a wedge body disposed between the rotor teeth in the axial direction and connected with the end coil covers. Each wedge body is made of a metallic material having a conductivity and has an insulating layer formed on an outer surface other than both cross sections connected to the end coil covers. The end coil covers are also made of a metallic material having a conductivity and are connected with the ends of each wedge body.
-
公开(公告)号：US10014811B2
公开(公告)日：2018-07-03
申请号：US15383275
申请日：2016-12-19
申请人： LSIS CO., LTD.
发明人： Mi-Rim Jeon
摘要： The present disclosure relates to an apparatus for correcting a current reference, and more particularly, to an apparatus for correcting a current reference including a calculation unit configured to set a first torque reference section and a second torque reference section using candidate values of a correction factor that corrects the current reference so as to enable the current reference to satisfy rated operating conditions of the induction machine, and calculate the correction factor according to a section, in which the torque reference is included, of the first torque reference section and the second torque reference section, and a correction unit configured to correct the current reference using the correction factor.
-
公开(公告)号：US09998054B1
公开(公告)日：2018-06-12
申请号：US15493490
申请日：2017-04-21
申请人： Summit ESP, LLC
CPC分类号： H02P27/047 , H02K17/16 , H02P25/02 , H02P25/16
摘要： An electric submersible pump (ESP) variable speed drive (VSD) controller is described. A VSD control system includes a pump assembly including an induction motor operatively coupled to a pump, a power cable and a transformer electrically coupled between the induction motor and a VSD controller that controls a speed of the induction motor, the VSD controller including a converter section that sends a direct current (DC), a DC link including a DC smoothing capacitor that smooths the DC, an inverter that converts the smoothed DC to a pulse width modulated (PWM) output voltage, the inverter including at least one silicon carbide (SiC) power semiconductor module, and a PWM filter that filters the PWM output voltage to produce near sinusoidal voltages, the PWM filter including inductors, and the PWM filter sending voltage to the transformer.
-
-
-
-
-
-
-
-
-
搜索结果
693 条记录 (耗时 0.021 秒)