With Detection Of Current Or Voltage Amplitude Patents (Class 320/162)
  • Patent number: 10666063
    Abstract: Embodiments of the present disclosure provide a charging method, a charging device and a terminal. The charging method includes: when detecting that a battery is charged with a trickle current, acquiring a voltage of the battery; determining a preset voltage range to which the voltage belongs; acquiring a charging current corresponding to the preset voltage range; and charging the battery according to the charging current. During a process that the battery is charged with the trickle current, the battery may be charged with a different charging current when the voltage of the battery belongs to a different voltage range, thereby improving the flexibility of a trickle current charge phase.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: May 26, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Qiang Zhang, Fanhong Kong, Fuchun Liao
  • Patent number: 10587139
    Abstract: A method and apparatus for controlling a battery, the apparatus configured to measure a current usage of a battery, generate a concentration limitation condition on a material in an active material of the battery based on a characteristic of the active battery, and control a usage of the battery based on the current usage and the concentration limitation condition.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 10, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Duk Jin Oh, Tae Won Song, Jinho Kim, Ju Wan Lim
  • Patent number: 10574078
    Abstract: A charging system is configured to charge a charging target group including electronic devices which are stacked in a row and include their respective secondary batteries. A first receiver is configured to acquire, from the electronic devices, pieces of battery information representing remaining capacities of the secondary batteries, respectively. The second receiver is configured to obtain, from the electronic devices, pieces of position information representing positions of the electronic devices in the charging target group, respectively. The determining processor is configured to determine respective priorities of the electronic devices according to the pieces of battery information and the pieces of position information based on a judgment condition. The charge controller is configured to control charging of each of the electronic devices so that the electronic devices are charged according to the respective priorities.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: February 25, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshihiko Matsukawa, Akira Kawamoto, Hiroyuki Koda, Tatsuaki Amemura
  • Patent number: 10539684
    Abstract: A radiation imaging apparatus having a battery and being operable in at least one of a plurality of power supply forms including the battery and an external power source, the apparatus comprising: a power control unit configured to determine the power supply form; and a control unit configured to control an operation of the radiation imaging apparatus, wherein in accordance with the power supply form, the control unit switches between a first obtaining mode of obtaining offset correction data after imaging of an object for each imaging of the object and a second obtaining mode of obtaining offset correction data obtained in advance before imaging of an object is done, and the control unit switches to the first obtaining mode if power is supplied from the battery and switches to the second obtaining mode if power is supplied from the external power source.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: January 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroki Asai, Toshikazu Tamura
  • Patent number: 10511181
    Abstract: A charging device and a handheld electronic device both with adaptive current limiting protection are provided. Both of the charging device and the handheld electronic device have a connection interface and an adaptive current limiting protection circuit comprising an impedance unit, a switch, and a control unit. The control unit is electrically coupled to the switch, the impedance unit, and an electrical path connected to a power pin of the connection interface. The control unit stores a plurality of voltage values and a plurality of different corresponding current limit values. The control unit is configured to measure the voltage of the electrical path to obtain a measured voltage, and the control unit is further configured to measure the voltage across the impedance unit to calculate a current value. When the current value reaches the current limit value corresponding to the measured voltage, the control unit turns off the switch.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 17, 2019
    Assignee: CYBER POWER SYSTEMS, INC.
    Inventors: Chin-Ching Chang, Heng-Chuan Chen
  • Patent number: 10498154
    Abstract: Provided is an electric power system, including: a battery, connected to an ACG and an electric load, and capable of charge by electric power generated by the ACG and discharge to the electric load; and an ECU, setting an SOC target value of the battery for each driving cycle, and controlling the charge and discharge of the battery so that the SOC of the battery becomes the SOC target value. The ECU sets the SOC target value in a normal mode when a starting SOC value in the most recent past driving cycle is lower than an ending SOC value, and sets the SOC target value in a degeneration suppression mode when the starting SOC value is greater than the ending SOC value continuously for two most recent driving cycles.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 3, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shigeru Namiki, Yuki Koizumi
  • Patent number: 10483777
    Abstract: An auxiliary power supply device includes: a plurality of channels of auxiliary power supplies; a charging circuit; and an auxiliary power supply switching circuit disposed between the charging circuit and positive electrode terminals of the plurality of channels of auxiliary power supplies and configured to switch one channel of auxiliary power supply connected to the charging circuit among the plurality of channels of auxiliary power supplies and to simultaneously switch one channel of auxiliary power supply connected to a power supply destination so as not to match the channel of auxiliary power supply connected to the charging circuit.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 19, 2019
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Fumihiko Satou, Toyoki Sugiyama, Masataka Okuda, Hidefumi Kamikawa
  • Patent number: 10468893
    Abstract: A USB charging method adopted by an electronic source device and an electronic sink device electrically connected thereto through USB interface is present. The method comprises following steps: receiving a Discover Identity ACK from the sink device after connection; determining if the sink device is recorded in a protect list according to the Discover Identity ACK; adjusting voltage/current combinations which is to provide to the sink device according to a best working voltage of the sink device if the sink device is recorded in the protect list; transmitting the adjusted voltage/current combinations to the sink device.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: November 5, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Tien-He Chen, Shou-Chieh Lin
  • Patent number: 10447087
    Abstract: A wireless power transmission apparatus for high efficiency energy charging, includes a resonator configured to transmit power, and a power supply unit configured to supply power to the resonator. The apparatus further includes a first switching unit configured to connect the resonator to the power supply unit, and disconnect the resonator from the power supply unit, and a controller configured to control the first switching unit based on an amount of current flowing into the resonator.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: October 15, 2019
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Dankook University
    Inventors: Ui Kun Kwon, Sang Joon Kim, Seung Keun Yoon, Yeong Seok Ko, Shi Hong Park
  • Patent number: 10424923
    Abstract: An energy storage system includes: a grid tie unit comprising at least one DC/AC converter; and multiple pods connected to the grid tie unit, each pod including: a number of cells; and a power electronics unit, wherein the cells are floating relative to the system and are galvanically isolated therefrom. The multiple pods may be organized into packs, with a pack including a thermal management system.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: September 24, 2019
    Assignee: Tesla, Inc.
    Inventors: Mehmet Ozbek, Brandon Pierquet, Andrew David Baglino
  • Patent number: 10381936
    Abstract: The flyback converter generally has a capacitive divider operatively connectable to a voltage source for receiving an input voltage, the capacitive divider having a plurality of capacitive devices connected in series from one another; a transformer having a plurality of primary windings inductively coupled to at least one secondary winding, each one of the primary windings of the transformer being connected in parallel to a corresponding one of the capacitive devices of the capacitive divider via a switching device, each of the at least one secondary winding being connected to a forwardly biased and capacitive circuit connectable to an output load; and a controller connected to each one of the switching devices for operating the flyback converter to power the output load with the voltage source.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: August 13, 2019
    Assignee: Silanna Asia Pte Ltd
    Inventors: Sheikh Mohammad Ahsanuzzaman, Seyed-Behzad Mahdavikhah-Mehrabad, Aleksandar Radic, Aleksandar Prodic
  • Patent number: 10333318
    Abstract: In electric vehicle supply equipment (EVSE), interruption of charging due to overheating is prevented by adjusting the pulse duty cycle on the control pilot conductor communicating the maximum allowed current level to the electric vehicle, the adjustment being performed whenever the EVSE temperature exceeds a predetermined threshold temperature below the maximum operating temperature as a function of the approach of the temperature to the maximum operating temperature.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 25, 2019
    Assignee: Webasto Charging Systems, Inc.
    Inventor: Albert Joseph Flack
  • Patent number: 10326288
    Abstract: The invention relates to a method for the voltage-controlled deactivation of battery cells (22) within a battery module (34, 38) or a battery pack (48) and for the voltage-controlled deactivation of electronic components (40, 52.1-52.8, 54) which are electrically connected to the battery cells and which are supplied with power by the battery cells. If a voltage falls below a threshold in the battery cells (22), supply lines (44, 46, 68, 70) to the electronic components (40, 52.1-52.8, 54) are automatically interrupted and/or battery cells (22) of the battery modules (34, 38) are separated from the main current circuit of the battery or of a battery pack (48).
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 18, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Michael Steil
  • Patent number: 10300904
    Abstract: A motive power system includes a first energy storage, a second energy storage, an actuator, an internal combustion engine, a power transmission circuit, and circuitry. At least the actuator drives a load in a charge-depleting mode using a first energy supplied from the first energy storage and/or the second energy storage according to a second charge rate. At least the internal combustion engine drives the load in a charge-sustaining mode using a second energy that is lower than the first energy and that is supplied to the actuator from the first energy storage and/or the second energy storage according to a first charge rate.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: May 28, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Daijiro Takizawa, Hirokazu Oguma
  • Patent number: 10291052
    Abstract: In accordance with an embodiment, a bypass charging circuit includes a pair of transistors having current carrying terminals commonly connected to form a node. An input of a comparator is coupled to the node through a switch and to a resistor. Another input terminal of the comparator is coupled for receiving a reference voltage. Optionally, a transistor may be connected to the bypass charging circuit. In accordance with another embodiment a method is provided in which bypass charging transistors are coupled to first input of a comparator in response to closing a switch. A voltage is generated at the first input of the comparator in response to closing the switch and the voltage is compared with a reference voltage. In response to the comparison, a status indicator signal is generated to indicate the presence of a low-impedance failure in one or both of the bypass charging transistors.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 14, 2019
    Assignee: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: James A. Meacham, II, Karttikeya Shah
  • Patent number: 10284004
    Abstract: A charging system and a method are provided. The charging system includes a power supply device, a charging module and a battery module. The charging module is detachably connected with the power supply device, and connected with the battery module. The charging module includes a power converting unit, a voltage regulator and a charging controller. When the power supply device and the charging module are connected with each other, the power converting unit of the charging module is in the backward direction and uses the electric power of the battery module to pre-charge a bus capacitor. If the voltage of the bus capacitor is higher than or equal to a first threshold value because of pre-charge, the voltage of an adjusting terminal of the charging module is adjusted. Consequently, the charging system is in a normal working mode.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 7, 2019
    Assignee: DELTA ELECTRONICS (THAILAND) PUBLIC COMPANY LIMITED
    Inventors: Hao Sun, Jinfa Zhang, Yueyong Meng, Shuanggang Li
  • Patent number: 10282796
    Abstract: An energy storage system includes a battery and an energy storage controller. The battery is configured to store electrical energy purchased from a utility and to discharge the stored electrical energy for use in satisfying a building energy load. The energy storage controller is configured to generate a cost function including multiple demand charges. Each of the demand charges corresponds to a demand charge period and defines a cost based on a maximum amount of the electrical energy purchased from the utility during any time step within the corresponding demand charge period. The controller is configured to modify the cost function by applying a demand charge mask to each of the multiple demand charges. The demand charge masks cause the controller to disregard the electrical energy purchased from the utility during any time steps that occur outside the corresponding demand charge period when calculating a value for the demand charge.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: May 7, 2019
    Assignee: Johnson Controls Technology Company
    Inventors: Mohammad N. ElBsat, Michael J. Wenzel, Robert D. Turney
  • Patent number: 10277052
    Abstract: A controller for controlling power delivery to a battery includes a first terminal that provides a first signal to enable a bypass path to deliver power from an interface to charge the battery, and includes a second terminal that provides a second signal to enable a conversion circuit to convert input power received at the interface to output power to charge the battery. The controller also includes circuitry that determines whether a first adapter or a second adapter is connected to the interface, generates the second signal if the second adapter is connected to the interface, generates the first signal and a request if the first adapter is connected to the interface, and provides the request to the first adapter through the interface. The request includes information indicative of a target level and an instruction that causes the first adapter to provide power at the target level to the interface.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 30, 2019
    Assignee: O2Micro Inc.
    Inventor: Guoxing Li
  • Patent number: 10252627
    Abstract: This disclosure relates to the field of electric vehicles (EV) that run, at least in part, on an electric motor. Included on the EV is an on board charger (OBC) responsible for charging a battery supply based on electronic power received from a source. The OBC is configured to detect certain voltage or current characteristics during a charging operation of the battery supply, and adjust allowed operational limits for the OBC accordingly.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 9, 2019
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventor: Ryan Miller
  • Patent number: 10237830
    Abstract: Methods, systems, and devices, including machine-readable media, for dynamic battery power management are disclosed. In some implementations, an electronic device that is powered by a battery senses a voltage provided by the battery and an electric current provided by the battery. The electronic device determines a present state of the battery. The electronic device determines a current limit for the electronic device based on the sensed voltage and electric current and the determined present state of the battery. The electronic device manages power use of the electronic device to maintain electric current draw from the battery at or below the electric current limit.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: March 19, 2019
    Assignee: Google LLC
    Inventors: Liang Jia, Srikanth Lakshmikanthan, Eklavya Singh, Enrique Romero Pintado
  • Patent number: 10211651
    Abstract: Provided is method of controlling an SOC value and an SOH value of an entire battery pack system in which two or more battery packs are connected in parallel. The method includes: an individual SOC value and SOH value calculation operation for calculating the SOC value and the SOH value of each of the two or more battery packs connected in parallel.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventor: Mi So Park
  • Patent number: 10193367
    Abstract: A method for determining voltages and/or power available in an electrical recharging network that includes at least one voltage generator and at least one recharging terminal i corresponding, at a first instant t1, to a predetermined reference impedance zii. At an instant t2, the method implements at least one iteration of the following acts: estimating a changing of the reference impedance zii into a modified impedance z?ii; updating a voltage of the recharging terminal i by determining a modified inverted loop impedance matrix Zloop_M?1 as a function of a reference inverted loop impedance matrix Zloop_R?1 and of a difference between the modified impedance z?ii and the reference impedance zii, delivering a voltage U?i; and verifying/updating a value of power available at the recharging terminal i as a function of a voltage U?i, a maximum power of the generator and/or a threshold voltage delivering, an available power Pdisp_i.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 29, 2019
    Assignee: INSTITUT MINES TELECOM
    Inventors: Fadi Abi Abdallah, Maurice Gagnaire
  • Patent number: 10177588
    Abstract: A charging circuit for providing a charging current to a battery includes a power delivery unit and a capacitive power conversion circuit. The power delivery unit converts an input power to a DC output voltage and current, and regulates the DC output current to a predetermined output current level. The capacitive power conversion circuit includes a conversion switch circuit including plural conversion switches coupled to one or more capacitors, and a conversion control circuit which operates the plural conversion switches in plural conversion periods to connect the one or more capacitors between a pair of nodes selected from plural voltage division nodes, the DC output voltage, and a ground node periodically, so that the level of the charging current is scaled-up of the predetermined output current level.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 8, 2019
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Tsung-Wei Huang, Shui-Mu Lin, Wei-Jen Huang, Hsien-Chih She, Teng-Cheng Chen
  • Patent number: 10177576
    Abstract: A charger circuit for providing a charging current and voltage to a battery includes a power delivery unit, a capacitive power conversion circuit and a reverse blocking switch circuit. The power delivery unit converts an input power to a DC voltage and current. The capacitive power conversion circuit includes a conversion switch circuit including plural conversion switches coupled with one or more conversion capacitors, and a conversion control circuit. The DC current is regulated to a predetermined DC current level, and the conversion control circuit controls the connections of the plural conversion capacitors such that the charging current is scaled-up of the predetermined DC current level substantially by a current scale-up factor. The reverse blocking switch circuit is coupled in series with the capacitive power conversion circuit. The body diode of the reverse blocking switch is reversely coupled to the body diode of the conversion switch.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 8, 2019
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Wei-Jen Huang, Shui-Mu Lin, Tsung-Wei Huang, Chih-Hua Hou
  • Patent number: 10161992
    Abstract: A power supply includes a first and second electric storage sections, a first sensor detecting a first current of charge/discharge of the first storage section, a second sensor detecting a second current of the charge/discharge of the second storage section, and a circuit module having a control section to determine a state of the first sensor, the second sensor, and/or a third sensor detecting a third current of a driving section by comparing a first current with a third current in a charge/discharge between the first storage section and the driving section, and/or a second current with the third current in a charge/discharge between the second storage section and the driving section, and by comparing the first current with the second current and the first current with the third current in the discharge of the first storage section to the second storage section and the driving section.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: December 25, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masayuki Kawamura, Hajime Fujita, Hirokazu Oguma
  • Patent number: 10153662
    Abstract: A wireless transmission device includes a coil that generates a magnetic field; and a resonant power-storage element module that is electrically coupled to a coil, is capable of storing electric power, and forms a resonant circuit corresponding to a power transmission frequency together with the coil when transmitting electric power via the coil. The resonant power-storage element module is formed by connecting a plurality of power storage elements in parallel to form a parallel group, connecting a plurality of such parallel groups in series to form a parallel-series group, and connecting a plurality of such parallel-series groups in parallel.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: December 11, 2018
    Assignee: YAZAKI CORPORATION
    Inventor: Antony Wambugu Ngahu
  • Patent number: 10148108
    Abstract: In an embodiment, a system includes a first link to couple first universal serial bus (USB) type-C control logic and electrical charger control logic of electrical charger circuitry. The first link is to provide a first data path between the first USB type-C control logic and the electrical charger control logic. The system also includes the first USB type-C control logic to receive first control data from the electrical charger control logic via the first link, and a second link to couple the first USB type-C control logic to second USB type-C control logic of a USB type-C power adapter circuitry. The second link is to provide a second data path for the first control data from the first USB type-C controller logic to the second USB type-C control logic. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: December 4, 2018
    Assignee: Intel Corporation
    Inventor: Don J. Nguyen
  • Patent number: 10133331
    Abstract: Various embodiments are generally directed to operation of a computing device powered with first and second sets of energy storage cells, the cells of the first set structurally optimized for higher density storage of electric power, and the cells of the second set structurally optimized for providing electric power at a high electric current level. A battery module includes a casing, a first cell disposed within the casing to store electric energy with a high density, and a second cell disposed within the casing to provide electric energy stored therein with a high current level. Other embodiments are described and claimed herein.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: November 20, 2018
    Assignee: INTEL CORPORATION
    Inventors: Tawfik M. Rahal-Arabi, Alexander B. Uan-Zo-Li, Mark MacDonald, Vivek M. Paranjape, Andy Keates, Don J. Nguyen
  • Patent number: 10074994
    Abstract: A power tool system includes at least one power tool, in particular at least one measuring tool, which has a holder for at least partial insertion of a rechargeable battery pack, and a rechargeable battery pack, in particular a rechargeable battery pack including lithium cell chemistry, for reversible insertion into the holder of the at least one power tool. The holder and the rechargeable battery pack have compatible mechanical and electrical interfaces for mechanical and electrical contact-connection of the power tool and the rechargeable battery pack.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 11, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Tobias Roehm, Michael Frank, Heiko Sgarz, Reiner Krapf
  • Patent number: 10073478
    Abstract: A voltage regulator includes a first transistor including a first terminal to receive an input voltage and a second transistor including a first terminal coupled to a second terminal of the first transistor. A charge pump couples to the second transistor and to an output voltage node. An amplifier receives a feedback voltage derived from the output voltage and generates a control signal to gates of the transistors. Responsive to the input voltage being more than a threshold larger than the output voltage, the amplifier maintains the second transistor off and the first transistor on such that current flows through the first transistor to the output voltage node but not the second transistor. Responsive to the input voltage being less than the threshold amount, the amplifier operates the first transistor in a triode mode and turns on the second transistor to provide current to the charge pump.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: September 11, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Vadim Valerievich Ivanov, Srinivas K. Pulijala, Siva Kumar Sudani
  • Patent number: 10046662
    Abstract: Disclosed herein is an invention concerning a method for managing charging of a Li-ion battery based on at least one parameter chosen from a group consisting of a state of deterioration of the Li-ion battery and cell unbalance, the method comprising the following steps: a) determining an end-of-charge voltage value of said Li-ion battery, b) generating a control signal controlling the charging of said Li-ion battery, and c) transmitting the control signal to a charger, the control signal being generated in such a way that the Li-ion battery is charged based on the end-of-charge voltage value determined in step a), said end-of-charge voltage value being increased based on the state of deterioration of said Li-ion battery until a limit value is reached, in order to ensure a constant minimal level of required energy in said Li-ion battery is provided at a predetermined reference temperature.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: August 14, 2018
    Assignee: RENAULT s.a.s.
    Inventors: Antoine Saint-Marcoux, Masato Origuchi, Ana-Lucia Driemeyer-Franco, Daniel Boiron
  • Patent number: 10027186
    Abstract: A power supply apparatus includes an output unit that wirelessly outputs electric power to an electronic device, a communication unit that wirelessly communicates with the electronic device, a detecting unit that detect a current flowing to the output unit, and a control unit that performs a process to limit the current flowing to the output unit in a case where the current detected by the detecting unit is greater than or equal to a predetermined value set according to a predetermined magnetic field strength while the output unit outputs the electric power to the electronic device.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: July 17, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Iori Aikawa, Marie Tateno
  • Patent number: 10020540
    Abstract: A thin film battery comprises a glass or ceramic substrate having a coefficient of thermal expansion (“CTE”) of from about 7 to about 10 ppm/° K, a continuous metal or metal oxide cathode current collector and having a thickness of less than about 3 micrometers, the cathode current collector being superjacent to the glass or ceramic substrate, a cathode material layer comprising lithium transition metal oxides that is a continuous film having a thickness of from about 10 to about 80 micrometers, the cathode material layer being superjacent to the cathode current collector, a LiPON electrolyte layer superjacent to the cathode material layer and having a thickness of from about 0.5 to about 4 micrometers, and an anode current collector with an optional anode material. Methods of making and using the batteries are described.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 10, 2018
    Assignee: CYMBET CORPORATION
    Inventors: Stuart Kevin Shakespeare, Stanley Jacob Stanislowski, Matthew E. Flatland, Stephen W. Downey, Morgan J. Thoma
  • Patent number: 9960618
    Abstract: Devices having battery charge control circuits are disclosed. Such devices can include power control circuits operable to receive electrical power at a connector, and provide power to electrical components, including a charge current for a rechargeable battery; and a controller circuit configured to determine and store a maximum charge current setting based on whether a voltage at the connector falls below a predetermined limit as the charge current is increased. Corresponding methods are also disclosed.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: May 1, 2018
    Assignee: Seagate Technology LLC
    Inventors: Ashutosh Razdan, Philip Yin, Felix Markhovsky
  • Patent number: 9941723
    Abstract: Some embodiments relate to a power management system. The power management system includes a generator that provides a voltage output to a bus. The bus is adapted to be connected to a load. The power management system further includes a battery charger that is adapted to charge a battery. A generator controller operates the generator and also adjusts operating conditions of the battery charger. In some embodiments, the generator includes an internal combustion engine that drives an alternator. Embodiments are contemplated where the battery charger is adapted to receive power from a primary power source. As an example, the primary power source may be utility power or some other form of generator power.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: April 10, 2018
    Assignee: Kohler, Co.
    Inventors: Eric D. Albsmeier, Richard A. Mauk, Harrison C. Chiu
  • Patent number: 9927465
    Abstract: Provided is a voltage measuring device capable of increasing the degree of freedom in the design of an RC filter (low-pass filter) while suppressing the withstand voltage limit of a capacitor. The voltage measuring device comprises: at least one divided capacitor group having a plurality of divided capacitors connected in series through measurement nodes and having one end connected to a reference node and the other end connected to a non-reference node; and at least one non-divided capacitor having one end connected to the reference node and the other end connected to a non-reference node to which the divided capacitors are not connected.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 27, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yasumichi Ohnuki
  • Patent number: 9893569
    Abstract: A power supply apparatus includes an output unit that wirelessly outputs electric power to an electronic device, a communication unit that wirelessly communicates with the electronic device, a detecting unit that detect a current flowing to the output unit, and a control unit that performs a process to limit the current flowing to the output unit in a case where the current detected by the detecting unit is greater than or equal to a predetermined value set according to a predetermined magnetic field strength while the output unit outputs the electric power to the electronic device.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Iori Aikawa, Marie Tateno
  • Patent number: 9864017
    Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 9, 2018
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Yohei Tao, Shigeki Yamate
  • Patent number: 9862275
    Abstract: The fail safe apparatus for an eco-friendly vehicle includes: a main battery to supply driving power of a vehicle; a battery controller to manage a state of charge of the main battery; a power converter to convert power supplied from the main battery into power for charging an auxiliary battery; a motor controller to drive a motor with the power supplied from the main battery; a hybrid starter generator to start an engine and charge the main battery; and a vehicle controller to monitor a capacity voltage of any one of the power converter and the motor controller when there is an error in data communication of the battery controller and control charging and discharging of the main battery based on the monitored results.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: January 9, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jung Min Cha, Dae Ro Park
  • Patent number: 9837836
    Abstract: A charging method and a portable electronic device using the same are provided. The charging method includes following steps: detecting a battery voltage and a charging current of a battery module; determining whether the portable electronic device operates at a constant voltage (CV) charging mode; executing an impedance calculation at the CV charging mode to obtain a first battery voltage corresponding to a first predetermined current and a second battery voltage corresponding to a second predetermined current; calculating a compensation impedance according to the predetermined current and the battery voltages; setting a maximum charging voltage according to the compensation impedance and executing a CV charging to the battery module accordingly; determining whether a current variation of the charging current is larger than a threshold value; re-executing the impedance calculation; updating a setting value of the maximum charging voltage when the current variation is larger than the threshold value.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 5, 2017
    Assignee: ASUSTeK COMPUTER INC.
    Inventors: Ching-Han Li, Hsiang-Jui Hung, Wei-Chen Tu, Ming-Ting Tsai
  • Patent number: 9827868
    Abstract: A secondary battery control unit has a calculating portion identifying a parameter of an equivalent circuit based on an estimation error that is obtained by a comparison between an actual output value of a secondary battery and an equivalent output value of the equivalent circuit. Based on a predetermined amount of an infinitesimal change in the parameter and an evaluation function that is obtained using a result of the comparison, the calculating portion numerically calculates a slope of the evaluation function and renews the parameter based on the slope. As a result, the secondary battery control unit has the calculating portion capable of identifying the parameter of the equivalent circuit while reflecting effects of deterioration of the secondary battery and capable of being integrated to a vehicle-mounted microcomputer.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: November 28, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yuuji Koike, Keiichi Kato, Toshiyuki Kawai
  • Patent number: 9806559
    Abstract: A reversible buck or boost converter is operable in a buck mode and in a boost mode. In the buck mode, the converter receives a supply voltage via an input terminal and generates a charging current that is supplied to a battery, thereby charging the battery. The supply voltage is also supplied through the converter to an output terminal. In a boost mode, the converter receives power form the battery and generates a supply current and voltage that is output onto the output terminal. The same single current sense resistor is used both to control the charging current in the buck mode and to control a constant current supplied to the output terminal in the boost mode. The output current is controlled to be constant, regardless of changes in the in the battery voltage and changes in the output voltage.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 31, 2017
    Assignee: Active-Semi, Inc.
    Inventors: Hong Mao, Wei-Chung Wu
  • Patent number: 9774194
    Abstract: Provided are a charge and discharge control circuit having a small circuit area and a compact battery device. A constant current circuit and an external resistor are connected to a voltage monitoring terminal so that a terminal voltage is pulled up or pulled down based on an external input. Moreover, output logic of a comparator and overcharge detection and overdischarge detection are switched based on the external input.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: September 26, 2017
    Assignee: SII Semiconductor Corporation
    Inventor: Shinya Fukuchi
  • Patent number: 9746526
    Abstract: A battery cell unit includes a battery cell and a monitoring device for monitoring the state of the battery cell. The monitoring device comprises an actuating device configured to activate an impedance spectroscopy mode provided by the battery cell unit, in which impedance spectroscopy mode measurement currents can be applied to the battery cell to perform impedance spectroscopy of the battery cell, said measurement currents flowing through the battery cell and comprising alternating currents at different frequencies. The monitoring device also comprises a sensor device designed to detect the measurement currents and the corresponding measurement voltages, each of which is a battery cell voltage arising as a response to a measurement current, such that a complex impedance of the battery cell can be determined from the measured values of the measurement currents and the measurement voltages as a function of the frequency of the measurement currents within predetermined tolerance limits.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: August 29, 2017
    Assignees: Robert Bosch GmbH, Samsung SDI Co., Ltd.
    Inventor: Holger Fink
  • Patent number: 9735454
    Abstract: An apparatus for controlling a lithium-ion battery is provided in which a power-generating element including a positive electrode element and a negative electrode element is housed in a case, wherein the case contains a compound releasing an electron toward the positive electrode element to provide a proton at an electric potential lower than a first electric potential being a positive electrode potential corresponding to a negative electrode potential at which precipitation of lithium occurs, the electric potential lower than the first electric potential being a second electric potential and being higher than a positive electrode potential corresponding to an upper limit value of working voltages of the lithium-ion battery, and the apparatus includes a controller configured to perform recovery processing of changing the lithium precipitated on the negative electrode element into a lithium ion using the proton by using a power source section supplying a power to the lithium-ion battery to bring the positive e
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: August 15, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Kosuke Iwase
  • Patent number: 9728995
    Abstract: Because a rechargeable battery has an increased number of uses (e.g., cycles), the battery's internal impedance can increase and the efficiency of the battery can become degraded. This internal resistance can cause cutoff voltage thresholds and cutoff current thresholds to prematurely stop a phase of battery charging, as these cutoff values can be based on low-cycle count batteries. New cutoff values can, instead, be based on battery impedance. Use of an adjusted cutoff current threshold during a constant voltage cycle can increase the capacity of high-cycle count batteries. Use of an adjusted cutoff voltage threshold in step charging can increase the charging speed of high-cycle count batteries. These increases in efficiency by using adjusted cutoff values can increase as the battery is further high-cycle count, in comparison with low-cycle count cutoff values used with high-cycle count batteries.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: August 8, 2017
    Assignee: INTEL CORPORATION
    Inventors: Naoki Matsumura, Gang Ji, Brian C. Fritz
  • Patent number: 9721447
    Abstract: A method can include receiving power level information for a device that includes a rechargeable battery and a display; determining a power level differential based at least in part on the power level information and historical information of the device; and rendering a power level differential notice to the display.
    Type: Grant
    Filed: September 20, 2015
    Date of Patent: August 1, 2017
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: John Carl Mese, Russell Speight VanBlon, Arnold S. Weksler, Nathan J. Peterson, Rod D. Waltermann
  • Patent number: 9662989
    Abstract: A fault diagnostic device of a vehicle includes a starting circuit which causes a charger mounted on the vehicle to output a charging start signal and thereby activate a control unit for controlling charging of a battery mounted on the vehicle when a charging gun is connected to the charger. The control unit causes the charger to output the charging start signal when the charger is activated in response to turning on of an ignition switch, and has a fault determination function whereby, if the control unit is not input with the charging start signal, it is judged that a disconnection or power-supply short circuit has occurred in a charging start signal circuit of the starting circuit.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 30, 2017
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Yu Watanabe, Noriyoshi Aiba, Takashi Nonaka, Kenji Kondo, Yasuhiro Yamanaka
  • Patent number: 9641012
    Abstract: High voltage charging is aborted when it is detected that a transformer providing the high voltage charge is impaired and is providing an impedance that is too low. In one instance, a voltage for a battery that provides power to the transformer is measured when the battery is substantially unloaded and a voltage is later measured when the battery is loaded during the high voltage charge. A dynamic threshold voltage is computed based on a chosen threshold impedance representing the impedance of the transformer and based the substantially unloaded voltage and on an internal resistance of the battery. When the loaded voltage is less than the threshold voltage, then the high voltage charging is aborted.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: May 2, 2017
    Assignee: Medtronic, Inc.
    Inventors: Lonny Cabelka, Yanina Grinberg, Troy Jenison
  • Patent number: 9627678
    Abstract: A battery module having a controllable external heat sink and methods of operating the battery module are provided. According to an aspect of the invention, the battery module includes a battery cell, an external circuit connected to the battery cell, and a controller that controls the external circuit. The external circuit includes a first switch and a heat sink. If an internal short circuit within the battery cell is detected, the controller closes the first switch in order to generate heat in the heat sink.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: April 18, 2017
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Simon Lux, Max Von Groll