公开(公告)号：US12036651B2

公开(公告)日：2024-07-16

申请号：US17979720

申请日：2022-11-02

申请人： De Poan Pneumatic Corp.

发明人： I-Tsung Wu ,  Chia-Sheng Liang ,  Zhen-Liang Liao ,  Wen-Chin Chen

IPC分类号： B25C1/06 ,  B25C1/00 ,  H02J7/00 ,  H02P7/29 ,  H02P7/292

CPC分类号： B25C1/06 ,  H02J7/0063 ,  H02P7/29 ,  H02P7/292 ,  B25C1/008

摘要： A nail drive method applied in an electric nail gun, in which a rotary actuator is driven to generate forward rotational kinetic energy for nailing. The rotary actuator has paired wire bundles and magnetic lines arranged in circumferential directions. The nail drive method comprises boosting a pre-loaded voltage of a battery to generate a peak voltage, and storing the electric charge generated by the peak voltage, and then releasing the peak voltage and its electric charge to the rotary actuator through a nailing signal, so that the wire bundles can generate a current to interact with the magnetic lines to generate a tangential force, so that the magnetic lines can drive the rotor to rotate for a specific angle, and the rotary actuator can directly generate a forward rotational kinetic energy for nailing. Thus, the energy conversion structure installed in the conventional electric nail gun can be omitted.

公开(公告)号：US20240235442A1

公开(公告)日：2024-07-11

申请号：US18559350

申请日：2022-05-11

申请人： Intex Marketing Ltd.

发明人： Zhi Xiong Huang ,  Ying Biao Zhang ,  Zhen Wen Lin

IPC分类号： H02P7/29 ,  F04D25/06 ,  F04D27/00

CPC分类号： H02P7/29 ,  F04D25/06 ,  F04D27/004

摘要： A low-loss motor may include a casing, a rear cover, and a rotatable shaft. The rotatable shaft may have a first end contacting the rear cover and a second end. An end face of the first end of the rotatable shaft may have a first shape and a contact surface of the rear cover may have a second shape, the second shape being different than the first shape.

公开(公告)号：US12021444B2

公开(公告)日：2024-06-25

申请号：US17501096

申请日：2021-10-14

申请人： Eaton Intelligent Power Limited

发明人： Huaqiang Li ,  Joseph Paul Uphaus

IPC分类号： H02M1/32 ,  H02H7/122 ,  H02J9/06 ,  H02M1/00 ,  H02M5/458 ,  H02M7/00 ,  H02M7/493 ,  H02M7/5387 ,  H02P1/02 ,  H02P7/29 ,  H02P27/04

CPC分类号： H02M1/32 ,  H02H7/1225 ,  H02J9/06 ,  H02M5/4585 ,  H02M7/003 ,  H02M7/493 ,  H02M7/53871 ,  H02P1/029 ,  H02P7/2913 ,  H02P27/04 ,  H02M1/0085 ,  H02M1/325 ,  H02M5/458

摘要： A compact motor control system for selectively controlling power from a power source to a load includes a motor switching assembly having a solid state contactor with a plurality of solid state switches. The motor switching assembly also includes at least one direct current (DC) link coupled to the solid state contactor and redundant first and second inverters coupled to the at least one DC link. The motor switching assembly further includes a first relay coupled between the solid state contactor and an input of the inverter and a second relay coupled between the solid state contactor and an input of the second inverter. In addition, the motor control system includes a control system programmed to control the motor switching assembly to selectively supply power to the load from the power source.

公开(公告)号：US20240204591A1

公开(公告)日：2024-06-20

申请号：US18593229

申请日：2024-03-01

申请人： Tau Motors, Inc.

发明人： Walter Wesley Pennington, III ,  Matthew J. Rubin ,  Gregory Gordon Stevenson ,  Michael Parker Owen

IPC分类号： H02K1/22 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29

CPC分类号： H02K1/223 ,  H02K1/02 ,  H02K21/16 ,  H02P7/29 ,  H02P2207/05

摘要： A stator defines multiple stator poles with associated electrical windings. A rotor includes multiple rotor poles. The rotor is movable with respect to the stator and defines, together with the stator, a nominal gap between the stator poles and the rotor poles. The rotor poles includes a magnetically permeable pole material. The rotor also includes a series of frequency programmable flux channels (FPFCs). Each FPFC includes a conductive loop surrounding an associated rotor pole. The stator and the rotor are arranged such that the electrical windings in the stator induce an excitement current within at least one of the FPFCs during start-up.

公开(公告)号：US12015396B2

公开(公告)日：2024-06-18

申请号：US17021278

申请日：2020-09-15

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yukako Tsutsumi ,  Koji Akita ,  Hiroyuki Kitagawa

IPC分类号： H04W56/00 ,  H03K17/30 ,  H03M9/00 ,  H02P7/29

CPC分类号： H03K17/30 ,  H03M9/00 ,  H04W56/001 ,  H02P7/29

摘要： According to one embodiment, in electronic apparatus, controller generates first and second control signals to control first and second controlled unit. First serial converter multiplexes the first and second control signals into first serial signal. First wireless transmitter transmits the first serial signal by first wireless signal in a chronologically continuous manner. First wireless receiver receives the first wireless signal. First parallel converter separates the first and second control signals from the first wireless signal received by first wireless receiver, to output the first control signal to first controlled unit, and to output the second control signal to second controlled unit.

公开(公告)号：US12009769B2

公开(公告)日：2024-06-11

申请号：US18054974

申请日：2022-11-14

申请人： Texas Instruments Incorporated

发明人： Navaneeth Kumar Narayanasamy ,  Martin Staebler

IPC分类号： H02P7/29 ,  H02P7/03

CPC分类号： H02P7/29 ,  H02P7/04

摘要： A motor system with an input for coupling to a motor control signal that, when presented in a predetermined state, indicates a motor receiving power should be disabled from rotating. The system also includes controller circuitry for providing a disabling signal to motor rotation, independent of processor software control signaling and the power, in response to the control signal.

公开(公告)号：US11933308B2

公开(公告)日：2024-03-19

申请号：US17550396

申请日：2021-12-14

申请人： GRUNDFOS HOLDING A/S

发明人： Martin Byskov Skafsgaard ,  Susanne Hamann Gade ,  Keld Benner Valbjørn ,  Jan Carøe Aarestrup

IPC分类号： F04D15/00 ,  F04D13/06 ,  H02P7/29

CPC分类号： F04D15/0066 ,  F04D13/06 ,  H02P7/29 ,  H02P2207/05

摘要： A pump assembly with a pump unit comprising an impeller for pumping fluid, an electric motor for driving the impeller, a control module for controlling the speed of the electric motor in a control mode, and an interface for receiving a pulse width modulated (PWM) control signal with a duty cycle indicative of the speed of the electric motor. The control module is configured to interpret the PWM control signal at start-up of the electric motor per default in a configuration mode as a configuration bit sequence based on the duty cycle of the PWM control signal during a pre-determined configuration window.

公开(公告)号：US11923799B2

公开(公告)日：2024-03-05

申请号：US17397156

申请日：2021-08-09

申请人： Texas Instruments Incorporated

发明人： Ashish Ojha ,  Krishnamurthy Shankar ,  Siddhartha Gopal Krishna ,  Priyank Anand ,  Ganapathi Hegde

IPC分类号： H02P7/29 ,  H02H9/00 ,  H03K17/16

CPC分类号： H02P7/29 ,  H02H9/001 ,  H03K17/165

摘要： An apparatus for regulating a slew time of an output voltage of a motor driver system includes a gate current control circuit which has a first input coupled to receive a target slew time and a second input coupled to receive a slew time. The gate current control circuit provides an incremented gate current if the slew time is greater than the target slew time and provides a decremented gate current if the slew time is less than the target slew time. The apparatus includes a gate driver which has a first input coupled to receive a PWM signal and a second input coupled to receive the gate current. The gate driver provides a gate drive signal.

公开(公告)号：US20240056002A1

公开(公告)日：2024-02-15

申请号：US18267659

申请日：2021-12-16

申请人： Intex Marketing Ltd.

发明人： Zhi Xiong Huang ,  Ying Biao Zhang

IPC分类号： H02P1/02 ,  H02P29/024 ,  H02P7/29 ,  H02P1/18

CPC分类号： H02P1/021 ,  H02P29/027 ,  H02P7/29 ,  H02P1/18

摘要： A control circuit and method for DC motors is disclosed in the present application. The control circuit may comprise a voltage monitoring unit for monitoring the output voltage of the DC power supply, a switching circuit for controlling the operation of the DC motor, and a PWM signal output unit to output PWM signal for controlling the switching circuit. The PWM signal output unit may be configured to regulate the duty cycle of the output PWM signal based on the results of the voltage monitoring unit. In this way, motors with different resistances may work continuously in a stabilized state. Also, it may detect when a load like motor is heavy loaded or overloaded, stop motor from starting, and avoid overtime working due to the drop of supply voltage damaging the load like motor. When the voltage of power supply is higher than the rated voltage of the motor, it may regulate the input voltage value of power supply to avoid the increase of excitation current of motor with the increase of the applied voltage, thereby avoid the loss of iron core.

公开(公告)号：US11863111B2

公开(公告)日：2024-01-02

申请号：US17426619

申请日：2020-01-14

申请人： AutoNetworks Technologies, Ltd. ,  Sumitomo Wiring Systems, Ltd. ,  Sumitomo Electric Industries, Ltd.

发明人： Shinnosuke Nakaguchi ,  Masayuki Kato

IPC分类号： H02P7/29 ,  G05F1/56 ,  H02P29/024

CPC分类号： H02P7/29 ,  G05F1/56 ,  H02P29/027

摘要： Provided is a power supply control device for controlling power supply to a motor installed in a vehicle, including: a switching element configured to turn on and off the power supply to the motor; a current detection circuit configured to detect a current flowing to the motor; and a control unit configured to determine whether or not the motor is in a locked state based on the current detected by the current detection circuit, and control turning on and off the power supply to the motor at a duty cycle that corresponds to the current detected by the current detection circuit, if it is determined that the motor is in the locked state.