Patents Examined by Rexford N. Barnie
  • Patent number: 11996730
    Abstract: A backup power supply device having a short charging time is provided. The backup power supply device for supplying power when a main power supply is under a power failure includes first and second battery packs connected in parallel, a charging circuit for charging the first and second battery packs, first and second discharging switches for causing the first and second battery packs to discharge to the load device respectively, and a control unit. The control unit compares the battery voltages of the first and second battery packs with an output voltage from the main power supply. The control unit sets the first and second discharging switches to ON when the battery voltages are lower than the output voltage. When the battery voltage of the battery pack exceeds the output voltage of the main power supply due to charging, the control unit sets the first discharging switch and the second discharging switch to OFF.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: May 28, 2024
    Assignee: FDK CORPORATION
    Inventor: Katsuhiko Tamaki
  • Patent number: 11987783
    Abstract: A bio-processing system (100) for wirelessly powering one or more sensors (116-128, 400) is presented. The system (100) includes bio-processing units (106-110), process supporting devices (112-114), energy sources (146-148), and sensors (116-128, 400) including an energy harvesting unit (402) and an energy storage unit (404). The system (100) includes a power management subsystem (104, 200) wirelessly coupled to the sensors (116-128, 400) and including a processor (202) configured to wirelessly monitor energy consumption of the sensors (116-128, 400) and a level of energy stored in corresponding energy storage units (404), select at least one sensor (116-128, 400) based on the energy consumption of the sensors (116-128, 400) and corresponding levels of energy stored in the energy storage units (404), and identify at least one active energy source (146-148) as a power source, where the identified power source is configured to wirelessly transfer power to the selected sensor (116-128, 400).
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: May 21, 2024
    Assignee: Cytiva Sweden AB
    Inventors: Suma Memana Narayana Bhat, Veena B N Rao, Andreas Axen, Deepak Aravind, Nagapriya Kavoori Sethumadhavan, Hanish Lakhani, Purbasha Halder, Victor Jose
  • Patent number: 11990847
    Abstract: A circuit and methods describing a complementary metal-oxide semiconductor (CMOS) rectifier for use in radio frequency (RF) energy harvesting with body biasing by the RF input to control the threshold voltage of each transistor. The CMOS rectifier includes an energy harvesting antenna, and multiple rectifier stages. The antenna receives electromagnetic radiation from the environment and generates a DC current. The oscillating input current is an RF+ positive current during a first half cycle and is an RF? negative current during a second half cycle. A first rectifier stage includes a first capacitor connected to the RF+ positive current, a second capacitor connected to the RF? negative current and a cross coupled CMOS circuit connected to the antenna.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: May 21, 2024
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Munir A. Al-Absi
  • Patent number: 11979052
    Abstract: A power source device includes a step-up circuit, a diode for backflow prevention, and an electrolytic capacitor. The step-up circuit is connected to a power source on an input side thereof and is connected to a first load and a second load in parallel on an output side thereof. The diode for backflow prevention is connected between the step-up circuit and the first load. The electrolytic capacitor is connected between the diode for backflow prevention and the first load.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 7, 2024
    Assignee: DENSO TEN Limited
    Inventor: Tomoyuki Minami
  • Patent number: 11975621
    Abstract: The present disclosure relates to the field of EV-DWPT (electric vehicle dynamic wireless power transfer), and specifically discloses a double solenoid EV-DWPT system and a parameter optimization method thereof. The system is provided with a magnetic coupling mechanism, comprising a transmitting structure and a receiving structure. The transmitting structure includes a plurality of double solenoid transmitting rails arranged equidistantly along a road direction. Each double solenoid transmitting rail includes a square tubular magnetic core perpendicular to the road surface, and transmitting solenoids wound spirally using one and the same Litz wire wound in opposite directions.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: May 7, 2024
    Inventors: Xiaorui Wu, Yue Sun, Xiaofei Li, Jing Xiao, Shaonan Chen, Yue Zuo, Yuhong Mo, Ning Wu, Wenlan Gong, Shuai Han, Weidong Chen, Min Guo, Xiaoxuan Guo, Chunsen Tang
  • Patent number: 11964576
    Abstract: An electrified vehicle includes a wireless charger that wirelessly receives power from an external source, cameras, LEDs, a speaker, and at least one controller programmed individually or in combination to, when the wireless charger is receiving power from the external source, process images from at least one of the cameras and operate the LEDs and the speaker based on detection of an object within the images. The controller may change the color of the LEDs and/or sound emitted by the speaker in response to whether the object is detected within a first zone farther from the vehicle or a second zone nearer the vehicle. The LEDs and cameras may be positioned on external side mirrors, front, rear, and/or underbody portions of the vehicle. The speaker may be external to the vehicle cabin and provide an audible signal when operating the vehicle in electric mode at low speeds.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 23, 2024
    Assignee: Ford Global Technologies, LLC
    Inventors: Kevin Mackenzie, Jonathan Barker
  • Patent number: 11951769
    Abstract: Space-saving in an automobile or the like provided with a battery is achieved. Design flexibility of an automobile or the like can be improved. An electric power control method or an electric power control system capable of utilizing electric power efficiently is provided. It is an electric power control system of an automobile including a car body, a first battery, a second battery, and a control unit. The control unit obtains states of charge of the first battery and the second battery, determines whether or not a difference between remaining capacities of the first battery and the second battery exceeds a predetermined value, and controls transmission of electric power between the first battery and the second battery, in the case where the difference in the remaining capacities exceeds the predetermined value, to be made such that the remaining capacities are close to each other.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 9, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kensuke Yoshizumi, Ryota Tajima
  • Patent number: 11951939
    Abstract: An anti-theft system for a working machine, includes: a start-operation tool to issue an order to start a prime mover; an information obtaining device to obtain first information and second information; and a controller device having: a certification storage to store certification information; a start processor to obtain the order issued by the start-operation tool and to start the prime mover when the first information obtained by the information obtaining device is related to the certification information; and a registration processor to perform a registration process for registering the second information as the certification information. The registration processor allows the registration process before starting of the prime mover, and stops allowing the registration process after the starting of the prime mover.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: April 9, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Ryo Ikeda, Keisuke Egashira, Ryota Ando
  • Patent number: 11955804
    Abstract: In an embodiment a load transfer element includes a bottom side, a top side and a connection between the bottom side and the top side, wherein the load transfer element is configured to transfer a mechanical load from a top side of a housing of a stationary part of a wireless power transfer (WPT) system to a bottom side of the housing.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: April 9, 2024
    Assignee: TDK Electronics AG
    Inventors: Pascal Hirschi, Abiezer Tejeda, Thomas Lohmann
  • Patent number: 11955820
    Abstract: A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: April 9, 2024
    Assignee: NuCurrent, Inc.
    Inventors: Andrew Kovacs, Jason Green
  • Patent number: 11955836
    Abstract: When a power outage occurs, an uninterruptable power supplies may lose all grid connections including a neutral connection which may be connected to ground. To avoid the loss of a ground connection to the power circuits of the UPS, a switch unit may be used to selectively connect a neutral conductor of the circuit to a ground terminal. The switch unit may comprise a power relay, a fast switch device (FSD), and a controller. The power relay and FSD may be connected in series between the neutral conductor of the circuit and a ground terminal. The controller may be configured to: close the FSD when the voltage between ground and neutral (Vng) goes above a first threshold, open the FSD when the voltage between any grid connection and neutral (Vg) goes above a second threshold, and close the FSD when Vg is below the second threshold.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: April 9, 2024
    Assignee: Solaredge Technologies Ltd.
    Inventors: Natan Schecter, Roni Salman, Aryeh Zafranski, Yuval Paz
  • Patent number: 11948761
    Abstract: A method carries out a switchover of a first switch or at least one second switch for equipment. The method includes receiving, by a controller, a switching signal; selecting, by the controller, the first switch or at least the second switch for switchover on the basis of the switching signal; querying, by the controller, at least one parameter of the first switch or the at least second switch; checking a locking condition on the basis of the at least one queried parameter for the first switch or a locking condition for the at least second switch; and carrying out the switchover by the selected first switch or the at least second switch based upon the corresponding locking condition being met.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: April 2, 2024
    Assignee: MASCHINENFABRIK REINHAUSEN GMBH
    Inventors: Sebastian Schmid, Eduard Zerr, Klaus Ixmeier
  • Patent number: 11949347
    Abstract: A power conversion device includes a power converter to output AC power by converting input DC power, an electric leakage detector to detect electric leakage in a power supply line through which the AC power output by the power converter flows when the AC power is being output by the power converter, and a power conversion controller configured to control power conversion of the power converter. The power conversion controller is configured to stop power conversion operation of the power converter based on a detection result of the electric leakage detector.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 2, 2024
    Assignees: FUJI ELECTRIC CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Nobuhisa Ando, Hiroki Katsumata, Masahiko Sato
  • Patent number: 11949249
    Abstract: A wireless power transmitter may receive a request from a wireless power receiver to perform recalibration for a first type of foreign object detection (FOD) in response to the wireless power receiver attempting to change an electromagnetic parameter supplied by the wireless power transmitter. In response to receiving the request, the wireless power transmitter may perform a second type of FOD to produce a FOD result. When the FOD result indicates a foreign object is present or likely present, the wireless power transmitter may discontinue or limit wireless power transfer, and/or communicate the FOD result to the wireless power receiver. When the FOD result indicates a foreign object is not present or likely not present, the wireless power transmitter may communicate the FOD result to the wireless power receiver, perform the recalibration and continue with wireless power transfer.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: April 2, 2024
    Assignee: MEDIATEK Singapore Pte. Ltd.
    Inventor: Vladimir Alexander Muratov
  • Patent number: 11946979
    Abstract: A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: April 2, 2024
    Assignee: Dialog Semiconductor Inc.
    Inventors: Jianming Yao, Kai-wen Chin, Yong Li, Cong Zheng, David Nguyen, Fuqiang Shi
  • Patent number: 11949252
    Abstract: A contactless device includes an impedance matching and filter circuit connected to an antenna and being on the one hand operable for contactlessly communicating with a second device via the antenna, and on the other hand operable for contactlessly charging a rechargeable power supply of a third device via the antenna. A method of control includes modifying the impedance matching and filter circuit of the contactless device depending on whether the contactless device carries out the contactless communication or carries out the contactless charging.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: April 2, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Anthony Tornambe, Nicolas Cordier
  • Patent number: 11938839
    Abstract: A system in a vehicle includes two or more smart battery packs to power drive units of the vehicle to move the vehicle. Each of the two or more smart battery packs includes a battery pack, and a battery management system (BMS) to monitor a state of charge of the battery pack. An energy distribution unit facilitates charge transfer among the two or more smart battery packs.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: March 26, 2024
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Chinmaya Patil, Norman K. Bucknor
  • Patent number: 11942791
    Abstract: A self-powered wireless keyboard by modifying the structure of a traditional membrane keyboard having a volcanic crater structure. Not damaging the original membrane keyboard structure, a micro magnet core is installed inside a cylindrical protrusion block under the key cap as a mover of the induction power generation device, and an induction coil is wound in a key slot of the keyboard base as the stator of the induction power generation device. In this way, when each key is pressed, it will produce induction current. A layer of flexible solar cell can be laid on the upper surface of the key, which can generate electricity by collecting the light energy in the surrounding environment during the time of daily illumination.
    Type: Grant
    Filed: September 26, 2021
    Date of Patent: March 26, 2024
    Assignee: Beijing Institute of Technology
    Inventors: Fang Deng, Yanxin Ji, Xinyu Fan, Yeyun Cai, Chengwei Mi, Feng Gao, Jie Chen, Lihua Dou
  • Patent number: 11942818
    Abstract: Aspects of the disclosure include a system comprising at least one energy-storage-device connection, a first output connection to be coupled to a main power source providing main power, a second output connection to be coupled to at least one load, a first and second power converter coupled to the at least one energy-storage-device connection, and at least one controller coupled to the power converters and being configured to control the system to connect the power converters to the output connections, control the system to disconnect the first power converter from the second output connection responsive to detecting a fault in the main power, control the first power converter to provide power to the first output connection responsive to detecting the fault in the main power, and control the system to disconnect the second power converter from the first output connection responsive to detecting the fault in the main power.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: March 26, 2024
    Assignee: SCHNEIDER ELECTRIC IT CORPORATION
    Inventor: Eric Lucien Brun
  • Patent number: 11942797
    Abstract: A wireless power transfer system includes a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmission antenna, a transmission controller, and a transmission power conditioning system. The transmission controller is configured to provide a driving signal for driving the transmission antenna based on an operating frequency and a virtual AC power frequency. The transmission power conditioning system is configured to generate the virtual AC power signals at the operating frequency and having peak voltages rising and falling based on the virtual AC power frequency. The wireless power receiver system includes the receiver antenna and the power conditioning system. The receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to alternating current (AC) received power signals, and provide the AC input power signals to a load.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: March 26, 2024
    Assignee: NuCurrent, Inc.
    Inventors: Mark Melone, Alberto Peralta