Patents Examined by Alexis B Pacheco
  • Patent number: 10498160
    Abstract: Described is a receiver for improving end-to-end efficiency in a device-to-device wireless charging system using resonant energy transfer through an inductive link. The receiver includes an efficiency controller which dynamically tracks a maximum efficiency point and controls an impedance between an inductive coupling of the receiver and a receiver rectifier circuit such that an impedance seen by the inductive coupling is an impedance which maximizes (or nearly maximizes) efficiency of the inductively coupled wireless power transfer operation.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 3, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Nachiket V. Desai, Anantha P. Chandrakasan
  • Patent number: 10491018
    Abstract: A power output management apparatus of a battery and a management method thereof are provided. The management method includes: enabling a power output mode and discharging a battery to a load via a discharge circuit in the power output mode; calculating the output power of the discharge circuit during the discharge; comparing the output power and a target power to generate a comparison result; and setting the output power being adjusted step by step by a unit compensation amount via the discharge circuit according to the comparison result.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: November 26, 2019
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Wei-Lieh Lai, Chang-Yuan Liu, Chieh-Fu Hsiao, Yi-Pin Lee
  • Patent number: 10491022
    Abstract: A method of managing a battery system, the method including receiving at least one measured characteristic of the at least one battery cell from the at least one sensor, estimating at least one state of the at least one battery cell at a first time by applying an electrochemical-based battery model, estimating at least one physical parameter of the at least one battery cell based on the at least one measured characteristic and the estimation of the at least one state, estimating the at least one state at a second time, subsequent to the first time, by applying the electrochemical-based battery model based on the estimated at least one parameter, and regulating at least one of charging or discharging of the at least one battery cell based on the estimation of the at least one state.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 26, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Anahita MirTabatabaei, Reinhardt Klein, Aleksandar Kojic, Nalin Chaturvedi, Christopher Mayhew, John F. Christensen
  • Patent number: 10491019
    Abstract: A battery management system (BMS) may include a battery, a relay configured to electrically connect and disconnect the battery for supplying a voltage (an electric power) to an electric load to and from the electric load, the electric load configured to receive the voltage (the electric power) from the battery, to compare the received voltage (the electric power) with a reference value and to output a wakeup signal according to the compared result, when the relay is electrically connected, and a controller configured to wake up by the wakeup signal, to monitor a state of the battery and to control a state of the relay. It is possible to prevent overdischarge and overcharge of the battery by monitoring the battery through the electric load in a state in which a vehicle is turned off and switching the BSM to a wakeup state only if necessary.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 26, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hyo Sik Moon, Jun Ho Bang, Woo Sung Kim, Kyung In Min, Jae Hoon Choi, Jin Wook Kim, Dong II Kim, Ji Won Nam, Yong Hwan Choi, Yoon Jun Lee, Jeong Hun Seo, Hui Tae Yang, Jun Seok Choi, Yu Seok Kim, Jung Je Woo, Byung Su Kim, Yong Jae Kim, Kyung Ho Kim, Suk Hyung Kim, Hae Kyu Lim
  • Patent number: 10483781
    Abstract: A method of controlling an electrical system is provided, the electrical system including a primary charging device including a first rechargeable power supply, and a portable device including a second rechargeable power supply, the method including monitoring an ambient temperature adjacent the primary charging device, determining a charging current for charging the first rechargeable power supply of the primary charging device, in dependence on the ambient temperature, and charging the first rechargeable power supply of the primary charging device at the determined charging current. There is also provided a system and device for performing the method.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: November 19, 2019
    Assignee: PHILIP MORRIS PRODUCTS S.A.
    Inventor: Raphael Holzherr
  • Patent number: 10471846
    Abstract: To prevent theft and/or leakage of electricity and to distribute electricity for recharging electric vehicles, the present invention discloses methods and systems for enabling and disabling a plurality of relays at a system. The system comprises a power supply, at least one ammeter, a power supply enabler and at least one power controller. The required steps include measuring current drawn by the plurality of loads by one or more ammeters. The power controller independently enables or disables each of the plurality of relays according to the instructions received. The power supply enabler enables or disables power supply to the system substantially based on the amount of current being drawn by the system.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 12, 2019
    Assignee: PISMO LABS TECHNOLOGY LIMITED
    Inventors: Alex Wing Hong Chan, Ming Pui Chong, King Shan Lam, Chi Leong Kwok
  • Patent number: 10476310
    Abstract: In certain aspects, methods and systems for controlling power transfer at a wireless power receiver are disclosed. In certain aspects, a method includes determining a duty cycle of a DC-DC converter of the wireless power receiver. The method further includes determining a duty cycle limit for an AC switching controller based on the determined duty cycle. The method further includes determining an operational duty cycle for the AC switching controller. The method further includes comparing the operational duty cycle to the duty cycle limit. The method further includes adjusting at least one of a desired voltage and current input to the DC-DC converter when the operational duty cycle is greater than the duty cycle limit.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 12, 2019
    Assignee: WiTricity Corporation
    Inventors: Chang-Yu Huang, Michael Le Gallais Kissin, Jonathan Beaver
  • Patent number: 10468897
    Abstract: The disclosure involves wireless electric power sharing between vehicles. A first vehicle sends a charging request, wherein the first vehicle is at least partially powered by a first on-board rechargeable electricity storage. The first vehicle receives a response to the charging request from a second vehicle which is at least partially powered by a second on-board rechargeable electricity storage, and a communication channel is established between the first and second vehicles. The first on-board rechargeable electricity storage is charged using energy stored in the second on-board rechargeable electricity storage and wirelessly transferred from the second vehicle to the first vehicle. The charging is controlled with information exchanged between the first and second vehicles over the communication channel.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 5, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Si Bin Fan, Ge Liang, Hao Sheng, Hai Dong Zhang, Jinfan Zhu
  • Patent number: 10464429
    Abstract: There is provided a cap for covering a receptacle enclosing charge terminals of a charge handle connected to a charging cord for providing electricity from a power source. The cap comprises a base member including a casing, the casing extending from the base member providing a hollow cavity for covering the receptacle enclosing the charge terminals of the charge handle, and two arms extending from the base member in a different direction from the casing, wherein the two arms are configured to receive the charging cord being coiled therebetween.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 5, 2019
    Assignee: KARMA AUTOMOTIVE LLC
    Inventors: Edward Djrbashian, Jake Iverson
  • Patent number: 10461553
    Abstract: Provided is a power source device having a high efficiency. A power source device 1 includes an insulated AC-DC converter 2 which receives a voltage of an AC power source 10 and outputs a link voltage Vlink, a bidirectional DC-DC converter 3 which receives the link voltage Vlink to charge a main battery 5, an insulated DC-DC converter 4 which receives the link voltage Vlink to supply power to a load 7, an operation mode in which the power is supplied from the AC power source 10 to the main battery 5, and an operation mode in which the power is supplied from the main battery 5 to the load 7.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 29, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takae Shimada, Hiroyuki Shoji, Takayuki Oouchi, Fumihiro Sato, Kenji Kubo, Eigo Kishimoto
  • Patent number: 10461560
    Abstract: A portable information handling system battery module has a self-contained housing having a battery charger, integrated rechargeable batteries and plural ports to transfer power, such as USB Type C ports having bi-directional power transfer capability. A cable couples first battery module port to a portable information handling system port to provide power to the portable information handling system and accept power from the portable information handling system. Plural additional battery modules daisy chain to the first battery module to accept power from and provide power to the portable information handling system. Power transfer is coordinated with communications through the ports, such as by a USB power transfer protocol supported at the information handling system and each battery module.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: October 29, 2019
    Assignee: Dell Products L.P.
    Inventors: Mohammed K. Hijazi, Merle J. Wood, III, Matthew J. McGowan
  • Patent number: 10461571
    Abstract: A module includes a charging circuit and a driven unit. The charging circuit includes a power generation element and an electric storage element. The power generation element is connected to the electric storage element to charge the electric storage element. The electric storage element is connected to the driven unit to drive the driven unit with electric power stored. The power-generating voltage of the power generation element has a value equal to or more than the charging voltage of the electric storage element. The electric storage element is a secondary battery including a lithium-transition metal oxide in a positive electrode active material layer, and a lithium-titanium oxide of spinel-type crystal structure in a negative electrode active material layer.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: October 29, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuharu Nakai, Masaharu Itaya, Yusuke Yoshida, Yasuhiro Kuratani, Masako Tenpaku, Yoshifumi Wada
  • Patent number: 10461564
    Abstract: Provided is a wireless power transmitter including a first coil disposed to transmit wireless power, a second coil disposed outside of the first coil to transmit wireless power, and a controller configured to determine whether to operate the wireless power transmitter in a magnetic induction mode or a magnetic resonance mode, control the first coil to operate in the magnetic induction mode and prevent the second coil from operating in the magnetic induction mode in response to the determination to operate the wireless power transmitter in the magnetic induction mode, and control the first coil and the second coil to operate integrally in the magnetic resonance mode in response to the determination to operate the wireless power transmitter in the magnetic resonance mode.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: October 29, 2019
    Assignee: KOREA AUTOMOTIVE TECHNOLOGY INSTITUTE
    Inventors: KyuBong Yeon, DuHo Lee
  • Patent number: 10454284
    Abstract: The present invention relates to a charger device (100) comprising: a sensor (10) which is configured to measure a differential current (DELTA_I) as a difference between a first current (I_POS) through a first battery portion (210) of a battery (200) and a second current (I_NEG) through a second battery portion (220) of the battery (200) and which is configured to provide a current difference signal (?I_meas) based on the measured differential current (DELTA_I); a compensator (20) which is configured to calculate a first current setpoint (I_SP_POS) used for the first battery portion (210) and a second current setpoint (I_SP_NEG) used for the second battery portion (220) based on the provided current difference signal (DELTA_I) and a battery current setpoint (I_SP); and a controller (30) which is configured to control charging and/or discharging of the first battery portion (210) based on the first current setpoint (I_SP_POS) and of the second battery portion (220) based on the second current setpoint (I_SP_NE
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: October 22, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Bernard Wagner
  • Patent number: 10439421
    Abstract: A linear charger circuit and method for providing an output current at an output node is presented. The circuit contains a pass device connected between an input node and the output node, first and second replica devices connected in parallel to the pass device, with their control terminals coupled to a control terminal of the pass device. The first replica device is coupled to a first circuit path for determining whether current output by the linear charger circuit shall be terminated. The second replica device is coupled to a second circuit path for providing feedback for controlling the pass device, a control circuit coupled to the second circuit path for controlling the pass device based on a quantity indicative of a current flowing through the second circuit path, and a switching circuit coupled to the second circuit path.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 8, 2019
    Assignee: Dialog Semiconductor (UK) Limited
    Inventors: Mihail Jefremow, Selcuk Talay, Fabio Rigoni
  • Patent number: 10431993
    Abstract: A module maintenance system includes a battery module, a charging device, and a rig. The battery module has a series configuration and a parallel configuration. In the parallel configuration, the rig connects each battery cell of the battery module in parallel and the charging device charges each battery cell of the battery module using the rig. In the series configuration, the battery module serially connects each battery cell of the battery module to a first terminal and a second terminal and the charging device charges each battery cell of the battery module using the first terminal and the second terminal.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: October 1, 2019
    Assignee: Artisan Vehicle Systems Inc.
    Inventors: Brian R. Huff, Mike Kasaba, Russell Davis
  • Patent number: 10427547
    Abstract: During charging, a quick charging device forms a battery module series circuit by connecting a third contact of a first switch to a second contact of the first switch, and connecting a fifth contact of a second switch to a twelfth contact of the second switch, so as to enable a charger to be connected to the battery module series circuit. During discharging, the quick charging device forms a battery module parallel circuit by connecting the third contact of the first switch to a first contact of the first switch, and connecting the fifth contact of the second switch to a fourth contact of the second switch, so as to enable a load unit to be connected to the battery module parallel circuit.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: October 1, 2019
    Assignee: YAZAKI CORPORATION
    Inventor: Takahiro Syouda
  • Patent number: 10427548
    Abstract: An electric vehicle charging device includes a processing unit having a memory with a routine stored therein which, when executed by the processing unit causes the processing unit to control circuitry to prevent the electric vehicle charging device from charging an electric vehicle for a random delay period and to allow the electric vehicle charging device to charge the electric vehicle starting when the random delay period ends, wherein the random delay period starts at a predetermined start time and lasts a random delay length of time. The random delay reduces the peak load on a transformer that the electric vehicle charging device and other electric vehicle charging devices receive power from.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: October 1, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Chinmaya Baburao Patil, Yigang Wang, Ronald L. Thompson, Jose Antonio Trujillo
  • Patent number: 10424960
    Abstract: The present disclosure provides a charging control method, a charging control device, and a charging cable. The charging control method can be performed in a charging cable through which a power adapter can perform charging on an electronic equipment, and includes: determining temperature of a charging interface, the charging interface includes at least one of the following interfaces: an interface of the power adapter used for electrical connection with the charging cable, an interface of the charging cable used for electrical connection with the power adapter, an interface of the charging cable used for electrical connection with the electronic equipment, and an interface of the electronic equipment used for electrical connection with the charging cable, and controlling charging for the electronic equipment according to the temperature of the charging interface.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 24, 2019
    Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
    Inventor: Jialiang Zhang
  • Patent number: 10424944
    Abstract: The invention relates to a method for automatically regulating an electric output which is dispensed by a secondary battery that has at least two battery cells, wherein the charge states of all the battery cells are repeatedly detected at time intervals, an average charge state (SOCaverage) is ascertained per battery cell from the detected charge states of the battery cells, a deviation of at least one charge state of a battery cell from the average charge state (SOCaverage) is detected, and the average charge state (SOCaverage) and the deviation are taken into consideration during the automatic and dynamic regulation of the electric output dispensed by the secondary battery.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: September 24, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Stefan Trinkert, Benjamin Mangold