Multi-rate Charging (e.g., Plural Charge Rates Before A Maintenance Charge, Etc.) Patents (Class 320/160)
  • Patent number: 10239477
    Abstract: A spacecraft, configured to be operated in a geosynchronous orbit includes a power subsystem, including a battery, and a battery charge controller. The spacecraft is configured to have a power demand, during an eclipse season of the geosynchronous orbit, of ā€˜Pā€™ kilowatts and the battery is sized to have a nominal capacity, measured in kilowatt-hours, smaller than 1.2*P/0.85. In some implementations, the battery has a rated charge voltage corresponding to the nominal capacity and the battery charge controller is configured to execute a battery charge management strategy that charges the battery to an above-rated charge voltage during selected portions of the eclipse season.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 26, 2019
    Assignee: Space Systems/Loral, LLC
    Inventors: Anthony Applewhite, Michel Lannes
  • Patent number: 10211486
    Abstract: The present embodiments relate to a battery that comprises one or more battery cells and a logic unit embedded within the battery to receive data from a plurality of sensors that are also embedded within the battery. A wireless transceiver embedded within the battery communicates with the logic unit. A voltage controller embedded within the battery receives instructions from the logic unit and a voltage regulator and a current limiter that are also embedded within the battery controls an output of the battery based on one or more signals from the voltage controller.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: February 19, 2019
    Inventors: Ivy Wong, Ella Xue
  • Patent number: 10164456
    Abstract: A method for charging a lithium ion battery includes the steps of: 1) determining a maximum charging current I0 and a lowest anode potential ? of the lithium ion battery at which no lithium precipitation occurs; 2) charging the lithium ion battery at a constant current of I1 which is greater than I0 for a charging time t1; 3) discharging the lithium ion battery at a constant current of I2 which is less than I0 for a discharging time t2, 5?t1/t2?50; 4) repeating steps 2) and 3) until a cutoff voltage of the lithium ion battery reaches V0 and standing the lithium ion battery for a standing time t3; and 5) charging the lithium ion battery at a constant current of I0 until the cutoff voltage of the lithium ion battery reaches V0 and charging the lithium ion battery to a cutoff current of I3 at a constant voltage.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: December 25, 2018
    Assignees: Dongguan Amperex Technology Limited, Ningde Amperex Technology Limited
    Inventors: Fuping Luo, Shengwei Wang, Chao Gao, Qiang Zheng
  • Patent number: 10145575
    Abstract: An air conditioner control system comprises air conditioners configured to condition an environment in a target space, an integrated controller configured to control the air conditioners based on control parameter data, sensor devices configured to measure the temperature of the target space and transmit measurement data, and wireless master devices configured to create control parameter data based on the measurement data. The wireless master devices each determine sleep times so that at least two sensor devices run out of battery charge around the same time according to the remaining charge amount of each of the sensor devices. The sensor devices each will be in the sleep mode in which power consumption is lower than in the normal mode according to the sleep time decided by the wireless master devices.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: December 4, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoshi Endo, Yoshiaki Koizumi, Toshihiro Mega, Kazuo Tomisawa, Tomoyuki Kamimura
  • Patent number: 10124686
    Abstract: An electrical system connectable to an offboard power supply includes a battery pack, parallel DC-coupled conductive and inductive charging systems, and a controller. The controller initiates charging of the battery pack using analog low-voltage signals. A charging preference may prioritize charging via a designated one of the charging systems. Another electrical system includes a battery pack connected to a DC voltage bus, a charge coupler connectable to the offboard power supply to establish a plug-in charging connection, parallel DC-coupled conductive and inductive charging systems, and a controller. The controller commands charging using the analog low-voltage control signals, doing so via the conductive charging system when the charge coupler is plugged into the power supply and via the wireless charger when the charge coupler is not plugged into the power supply and the controller detects proximity of the system to the primary induction coil.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 13, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Andrew J. Namou, Russell K. Steele, Douglas S. Cesiel
  • Patent number: 10105124
    Abstract: An ultrasound diagnostic equipment has at least one rechargeable ultrasound probe with a built-in battery, and a diagnostic equipment body connected to the at least one ultrasound probe in a wireless manner, wherein the diagnostic equipment body includes a power supply unit which supplies power to the battery of the at least one ultrasound probe, and a power supply controller which causes the battery of the at least one ultrasound probe to selectively perform refresh charging and top-up charging using the power supply unit on the basis of power supply information to the battery of the at least one ultrasound probe and the examination situation in the diagnostic equipment body.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: October 23, 2018
    Assignee: FUJIFILM CORPORATION
    Inventor: Rika Tashiro
  • Patent number: 10097024
    Abstract: A control system and control method for a phase shifted full bridge charger, wherein, the control system comprising a sampling system and a charger controller, the charger controller comprises a start and running determination unit, a soft start control unit, a running control unit and a smooth switchover control unit; the running control unit comprises a mode determination unit, a constant-voltage control unit, a total-current-limiting control unit and a charging-current-limiting control unit.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 9, 2018
    Assignee: CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
    Inventors: Xianqi Lin, Lijun Zhang, Xuqiang Zhao, Shiying Sun
  • Patent number: 10046652
    Abstract: A charge control apparatus includes a battery having a first maximum value, a minimum value, and a second maximum value of an output density, in an output characteristic indicating a relationship between a remaining capacity and the output density of the battery, the minimum value being on a lower remaining capacity side than the first maximum value and the second maximum value being on a lower remaining capacity side than the minimum value; and a charge control unit configured to stop charging the battery when a voltage of the battery reaches a charge termination voltage set in a predetermined setting range. The predetermined setting range is from a voltage corresponding to a remaining capacity associated with the first maximum value to a full charge voltage.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: August 14, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Yoshida, Hideo Yanagita
  • Patent number: 10005372
    Abstract: A vehicle includes a traction battery and a controller programmed to operate the traction battery according to an estimated value of a battery state of health parameter. The estimated value is updated based on drive cycle parameters of the vehicle over a time interval. The state of health parameters include a battery capacity and a resistance of the traction battery.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: June 26, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee
  • Patent number: 9893634
    Abstract: A power conversion circuit includes a high-side MOSFET and a low-side MOSFET. A conduction terminal of the high-side MOSFET is coupled to a conduction terminal of the low-side MOSFET at a half-bridge (HB) circuit node. The high-side MOSFET is switched off. Voltage potential transitions of the HB circuit node are counted while the high-side MOSFET and low-side MOSFET are off. Assertion of a control signal to the low-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after the high-side MOSFET is switched off. The low-side MOSFET is switched off by de-asserting the control signal to the low-side MOSFET. Switching on the high-side MOSFET is postponed for two voltage potential transitions of the HB circuit node after switching off the low-side MOSFET.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: February 13, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Roman Stuler
  • Patent number: 9819208
    Abstract: A battery management circuit maintains voltage balance during charging and discharging of a multi-cell, series connected battery stack. The circuit prevents any cell voltage from dropping below a voltage at which degradation of the battery can start. Each of the battery connections are connected with a first polarity across one secondary winding of a transformer through a first diode and connected with a polarity opposite to the first polarity across another secondary winding of the transformer through a second diodes, where, for the cell connections corresponding to each battery except the last in the series, the secondary winding connected through the corresponding first diode is the same as the secondary winding connected through the second diode to the cell connections corresponding to the subsequent battery in the series. The circuit also provides high efficiency voltage balancing during charging of the battery stack.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: November 14, 2017
    Assignee: GENERAL ELECTRONICS APPLICATIONS, INC.
    Inventor: Joseph Pernyeszi
  • Patent number: 9716404
    Abstract: A charging circuit and a charging method of a battery are disclosed. The charging circuit provides a charging current to charge the battery. The charging circuit includes a charging control module, a current detecting module and a compensation module. The charging control module provides a charging voltage. The current detecting module detects the charging current, and generates a detecting voltage according to the charging current. The compensation module detects the charging voltage, and provides a feedback voltage to the charging control module according to the detecting voltage and the charging voltage.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: July 25, 2017
    Assignee: ASUSTeK COMPUTER INC.
    Inventors: Wei-Chen Tu, Ming-Ting Tsai, Yii-Lin Wu, Hsiang-Jue Hung
  • Patent number: 9656563
    Abstract: A wireless modular power transfer system includes electric power modules and RF converter circuitry within the electric power modules that meets voltage and power characteristics of the electric power modules. Sensor data is processed to determine a wireless power transfer path. An electric power module is established as a power source by aligning RF converter circuitry as a transmitter, and an electromagnetic field is established as a wireless power transfer area. An electric power module is established as an electric load by aligning RF converter circuitry as a receiver. Power transfer between the electric power modules is controlled through the wireless power transfer area.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 23, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Masanori Ishigaki
  • Patent number: 9641011
    Abstract: A battery control device capable of carrying out current limitation in consideration of constraints on other components than a battery main body is provided. A battery control device according to the invention has an average current table describing an average current allowed for each of plural time window widths, and limits a battery current in accordance with the description.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 2, 2017
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Keiichiro Ohkawa, Ryouhei Nakao, Youhei Kawahara
  • Patent number: 9608471
    Abstract: A method and an apparatus for controlling wireless power transmission are provided. An apparatus for controlling wireless power transmission includes a controller configured to determine an output voltage of a power factor correction unit based on charging information of a battery, the power factor correction unit configured to correct an input voltage into the determined output voltage, and output a variable voltage, and a resonance unit configured to transmit power converted from the variable voltage to a wireless power reception apparatus.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: March 28, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Bong Chul Kim, Sang Wook Kwon, Ki Young Kim, Nam Yun Kim, Gun Woo Moon, Sang Cheol Moon, Chi Hyung Ahn, Shin Young Cho
  • Patent number: 9499040
    Abstract: A plug-in hybrid vehicle includes a hybrid powertrain system and an energy storage device. A method for operating the hybrid powertrain system includes initially operating the hybrid powertrain system in a charge-depletion mode to reduce a state-of-charge (SOC) of an energy storage device. In response to an operator request, the hybrid powertrain system operates in an opportunity charging mode to opportunistically charge the energy storage device to increase the SOC of the energy storage device during a trip prior to achieving a minimum SOC that is associated with triggering operation in a charge sustaining mode.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: November 22, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Bryan N. Roos, Lan Wang, Wei D. Wang
  • Patent number: 9493089
    Abstract: An efficient way of predicting the power requirements of electric vehicles is proposed based on a history of vehicle power consumption, speed and acceleration as well as road information. By using this information and the operator's driving pattern, a model extracts the vehicles history of speed and acceleration, which in turn enables the prediction of the vehicle's future power requirements. That is, the power requirement prediction is achieved by combining a real-time power requirement model and the estimation of vehicle's acceleration and speed.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: November 15, 2016
    Assignee: The Regents Of The University Of Michigan
    Inventors: Kang G. Shin, Eugene Kim
  • Patent number: 9484759
    Abstract: A power supply detection circuit detects power feeding to a VBUS terminal from the outside. A charger detection circuit detects the kind of charger by monitoring voltages of a DP terminal and a DM terminal. A control unit adjusts timing and instructs the charger detection circuit to start a charger kind detection process after a notification of detection of power feeding is received from the power supply detection circuit.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: November 1, 2016
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Atsushi Wada, Hajime Mizukami, Mitsuaki Hatakeyama, Shigeto Kobayashi
  • Patent number: 9431838
    Abstract: Charging systems and related methods are disclosed for switching voltage regulators. A charging controller may be configured to generate a control signal indicating a first level of an output current generated by a switching voltage regulator for charging an energy storage device, determine that an output voltage exceeded a predetermined threshold, and generate the control signal indicating a new level of the output current that is reduced from the first level. A method of controlling charging of an energy storage device may comprise monitoring an output voltage charging an energy storage device, comparing a reference signal and a current sense signal to generate a PWM control signal that determines an output current for a switching voltage regulator generating the output voltage, and decrementing the reference signal in response to the output voltage exceeding a predetermined level for a maximum charging voltage for the energy storage device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 30, 2016
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventor: Trevor Newlin
  • Patent number: 9431842
    Abstract: Various embodiments of the invention provide methods, systems, and computer-program products for charging a battery of a first mobile device from a battery of a second mobile device. In particular embodiments, a request is received identifying an amount of charge to provide from the battery of the second device to the battery of the first device. Accordingly, a determination is made as to whether the amount of charge requested is likely to result in a battery charge of the second device dropping below a threshold value before the battery of the device is recharged based on historical battery charge usage data of the device over a past period of time. If the amount of charge is not likely to result in the battery charge dropping below the threshold value, then the battery of the first device is charged with the amount of charge from the battery of the second device.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: August 30, 2016
    Assignee: NOBLE SYSTEMS CORPORATION
    Inventors: James K. Noble, Jr., Christopher S. Haggerty
  • Patent number: 9419450
    Abstract: A method for charging at least one lithium ion cell the method includes: (a) applying, to the lithium ion cell, a constant first stage charging current until a first stage charging voltage is about equal to a first stage complete voltage less than a maximum cell voltage, the constant first stage charging current greater than about 1C; and thereafter (b) applying multiple constant second stage charging currents to the lithium ion cell at different current levels, wherein the constant second stage charging currents are applied based on accessing a lookup table that relates at least current, temperature and open source voltage to each other; and thereafter (c) applying, to the lithium ion cell, a constant third stage charging voltage about equal to a complete voltage from the multiple constant second stage charging currents.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 16, 2016
    Assignee: TESLA MOTORS, INC.
    Inventors: Anil Paryani, Clay H. Kishiyama, Scott I. Kohn, Vineet H. Mehta
  • Patent number: 9385554
    Abstract: A charger and a charger controlling method for a battery rod having a small battery capacity are provided, which are used to charge a battery rod comprising a charging management circuit, and the battery capacity C of the battery rod is less than 100 mAh. The method comprises: defining a preset constant charging current I based on the battery capacity C of the battery rod in order to charge the battery rod with a current of KC, wherein, the value of K is less than 1, and the value of I and the value of C conform to the following relationship: I=K*C; detecting a real-time charging current Itemp of the battery rod in real time; comparing Itemp with I, and adjusting the output charging voltage according to the comparison result to charge the battery rod with a current of KC.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: July 5, 2016
    Assignee: HUIZHOU KIMREE TECHNOLOGY CO., LTD. SHENZHEN BRANCH
    Inventor: Zhiyong Xiang
  • Patent number: 9383808
    Abstract: Systems and methods are disclosed for dynamically allocating power for a system having non-volatile memory. A power budgeting manager of a system can determine if the total amount of power available for the system is below a pre-determined power level (e.g., a low power state). While the system is operating in the low power state, the power budgeting manager can dynamically allocate power among various components of the system (e.g., a processor and non-volatile memory).
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: July 5, 2016
    Assignee: APPLE INC.
    Inventors: Nir J. Wakrat, Kenneth L. Herman, Matthew J. Byom
  • Patent number: 9337683
    Abstract: A control system is designed or configured to control the state of charge of a battery or battery pack in a system containing a separate power source, which is separate from the battery or battery pack. In operation, the battery or battery pack is called upon to intermittently provide power for certain functions. The separate power source may be, for example, an AC electrical power source for a UPS or an engine of a vehicle such as a micro hybrid vehicle. The battery may be a nickel zinc aqueous battery. The control system may be designed or configured to implement one or more of the following functions: monitoring the state of charge of the battery or battery pack; directing rapid recharge of the battery or battery pack from the separate power source when the battery or battery pack is not performing its functions; and directing charge to fully charged level or a float charge level, which is different from the fully charged level, in response to operating conditions.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 10, 2016
    Assignee: PowerGenix Systems, Inc.
    Inventors: Jeffrey Phillips, Salil Soman
  • Patent number: 9304564
    Abstract: A computer system and a power management method thereof are disclosed. The computer system comprises a smart charger and an embedded controller (EC). The smart charger has a voltage turbo boost (VTB) function. The EC enables or disables the VTB function to protect a battery from damage according to a current remaining capacity and a battery decline ratio of the battery.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: April 5, 2016
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun-Jie Yu, Yu-Hui Chen, Kuang-Peng Lin
  • Patent number: 9252463
    Abstract: The present application provides a charging system having a charger and a battery. The charging system provides a quick-charging mode and a normal-charging mode. The quick-charging mode may be activated to charge the battery if certain conditions are met and the charging system may also have an indicating device for indicating when the quick-charging mode is finished. More specifically, the charger of the present application provides selective charging modes and provides an ultra-quick charging solution which may be controlled by the changes in the temperature of the battery and which can increase the charging power to quickly provide enough energy to finish a work task.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 2, 2016
    Assignee: Chervon (HK) Limited
    Inventors: Dezhong Yang, Nanfei Wu, Junya Duan
  • Patent number: 9190863
    Abstract: Disclosed is an apparatus (and method) for charging a battery having a voltage measuring unit for measuring a voltage, a control unit for outputting a charge control signal corresponding to an early charging mode in which the battery is charged until a voltage of the battery rises to a preset cut-off voltage (Vc) and a charge control signal corresponding to a late charging mode in which the battery is charged while lowering a charge power in phases, and a charging unit for providing a charge power corresponding to the charge control signal to the battery, wherein a point of lowering the charge power in phases is associated with a point at which the voltage of the battery reaches the cut-off voltage again by the lowered charge power. Therefore, a voltage level reached at full charge of a battery may be raised in a simple and efficient way.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 17, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Kyu-Ha Park, Cheol-Taek Kim
  • Patent number: 9166416
    Abstract: Adjacent battery cells connected in devices are balanced by closing a first circuit to charge an energy storage device from a first battery cell and thereafter simultaneously opening the first isolated switch and closing a second isolated switch to cause the energy storage device to charge a second battery cell. A circuit includes an isolated switch that operates simultaneously to balance battery cells connected in series, and a battery system balances battery modules connected in series, the battery module including battery cells connected in series. The battery cells and modules can be balanced by hierarchical balancing of modules of the battery pack and component cells of the modules.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: October 20, 2015
    Assignee: Boston-Power, Inc.
    Inventor: Mark Gerlovin
  • Patent number: 9150106
    Abstract: A vehicle operating system and a method of controlling the vehicle operating system, the vehicle operating system including an electric power generation module that is configured to generate electric power; a battery, the battery being chargeable by using the electric power generated by the electric power generation module; a battery management system that controls the chargeable battery; and a cooler that is configured to cool the battery, wherein the battery management system is configured to cut off the electric power supplied to the battery when the battery is fully charged, and when the battery management system cuts off the electric power supplied to the battery, the cooler is configured to consume the electric power generated by the electric power generation module.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Seong-Joon Park, Ri-A Ju
  • Patent number: 9145132
    Abstract: An ECU executes a program including the steps of: prohibiting startup of an engine when there is a request for execution of a deterioration diagnosis process and when the deterioration diagnosis process is in execution; and releasing prohibition of startup of the engine when the deterioration diagnosis process is completed.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: September 29, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keita Sato
  • Patent number: 9139100
    Abstract: A vehicular power supply apparatus includes a Scott transformer, a first output port and a second output port. The Scott transformer is configured to convert three-phase AC power supplied from a three-phase AC power source into first and second single-phase AC powers. The first output port is for supplying the first single-phase AC power to a vehicle. The second output port is for supplying the second single-phase AC power to a vehicle.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: September 22, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shinji Ichikawa, Tomoyuki Mizuno
  • Patent number: 9124135
    Abstract: While a control method is established which can maximize the lifetime of an storage battery based on a SOC capable of maximizing the lifetime of the storage battery under a temperature condition and a wind condition at an electricity generation site and on currently known ones of other operational conditions, a control system is constructed which can feedback to an actual wind power generation and storage battery system.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: September 1, 2015
    Assignee: SHIN-KOBE ELECTRIC MACHINERY CO., LTD.
    Inventors: Keiko Abe, Masahiro Watanabe, Yasuhiro Kobayashi, Toshiyuki Furukawa, Hisaaki Takabayashi, Yoshikazu Hirose
  • Patent number: 9112315
    Abstract: A USB power adapter for AC and DC power has a circuit board, a base and a top cover. The base and the top cover receive the circuit board therein. The circuit board has an AC conversion module, a DC conversion module, and a USB connection port. The base has a cigarette lighter electrically connected to the DC conversion module. The top cover has a pair of blades electrically connected to the AC conversion module. The AC power inputted through the pair of blades is converted by the AC conversion and the DC conversion module into the power outputted through the USB connection port. Accordingly, it is unnecessary to prepare a dedicated AC or DC charger depending upon the type of power source or to prepare a charger requiring many replaceable plugs. The inconvenience caused by carrying and operating those chargers or plugs can be resolved.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: August 18, 2015
    Assignee: Quietek Corporation
    Inventor: Kao-Chun Chang
  • Patent number: 9088053
    Abstract: A comparator circuit includes: a switching element that is disposed between a positive electrode of a battery cell and a fixed potential supply source, that has a control terminal connected to a negative electrode of the battery cell, and that operates in response to a voltage applied from the battery cell to the control terminal; a voltage regulating unit that is disposed between the battery cell and the switching element and that regulates the voltage applied from the battery cell to the switching element; and an output signal line that outputs a potential between the switching element and the fixed potential supply source.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: July 21, 2015
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Koji Suzuki
  • Publication number: 20150130417
    Abstract: A method of charging batteries and a battery charging system are disclosed. One inventive aspect includes a battery pack and a charging unit. The battery pack further comprises a battery cell, a voltage sensor and a current sensor. The charging unit is configured to charge the battery cell with a constant current or a constant voltage at least partially based on the voltage of the battery cell sensed by the voltage sensor.
    Type: Application
    Filed: March 19, 2014
    Publication date: May 14, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Subin SONG, Joosick Jung, Myoungseok Lee, Dmitry Golovanov
  • Publication number: 20150115899
    Abstract: A method and apparatus for controlling charge of a low-voltage battery are provided. The method includes assigning, by a controller, a preset voltage for the low-voltage battery based on an operating mode of a vehicle and a charge state of a high-voltage battery. In addition, the controller compares the preset voltage with a present charge voltage of the low-voltage battery and increases the present charge voltage with a first slope until the present charge voltage becomes equal to the preset voltage when the preset voltage is greater than the present charge voltage. The operating mode comprises drive modes that include a first drive mode and a second drive mode, a fuel cell stop mode, and an emergency mode. The first drive mode is divided into a plurality of stages based on the charge state of the high-voltage battery.
    Type: Application
    Filed: April 24, 2014
    Publication date: April 30, 2015
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Kyu Il Lee, Kyung Won Suh, Seon Hak Kim
  • Patent number: 9018920
    Abstract: An information processing apparatus capable of suppressing a secondary battery from being charged with an amount of charge current that can apply excessive load on the secondary battery, without a backup power source function of the secondary battery being impaired. When determining that a predetermined type of data is stored in a DRAM to be backed up by the secondary battery, the information processing apparatus selects a first constant current circuit and quickly charges the secondary battery with a large charge current output from the first constant current circuit. When determining that the predetermined type of data is not stored in the DRAM, the information processing apparatus selects a second constant current circuit and normally charges the secondary battery with a small charge current output from the second constant current circuit.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: April 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takuma Yasukawa
  • Patent number: 8994339
    Abstract: A dual-loop control configuration employs battery temperature as a feedback metric in order to prevent overheating when recharging batteries. Temperature sensors are used to obtain the battery temperature. Depending on the battery temperature that is measured, a processing device such as a battery interface module determines whether that temperature exceeds a temperature threshold. The processing device also determines a charge rate of the batteries. The processing device is configured to vary the fan speed to increase or decrease airflow for cooling the batteries based on this information, and also regulates the charge rate of the batteries as a function of the fan speed. This arrangement may be used as part of a battery backup system, such as in an uninterruptible power supply used in a data center. Alternatively, it may be used in the power supply system of an electric vehicle. Fluids besides air may also be employed.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: March 31, 2015
    Assignee: Google Inc.
    Inventor: Pascal C. Kam
  • Publication number: 20150088253
    Abstract: Systems and methods of the disclosure relate to managing power consumption of an implantable device, such as an implantable ophthalmic device, that includes one or more rechargeable batteries and a processor operably coupled to the rechargeable batteries. The processor can be configured to implement a quick-charge process that includes charging each rechargeable battery for a first time interval using a first constant current, for a second time interval using a second constant current less than the first constant current, and for a third time interval using a constant voltage. This quick charge process is faster than conventional charging. The processor also manages discharge of two batteries in an alternating fashion so as to increase time between charging cycles, reduce the total number of charging cycles, and extend battery life.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 26, 2015
    Inventors: Walter Doll, Jean-Noel Fehr, Urban Schnell, Roelof Trip, Amitava Gupta
  • Publication number: 20150077058
    Abstract: A method of charging a battery and a battery charging system, which has a relatively high charging speed while having a relatively low level of battery deterioration. The charging method includes charging a battery cell with a first current in a first constant current mode; charging the battery cell with a first voltage in a first constant voltage mode; idling the charging of the battery cell for a first idle period (t); charging the battery cell with a second current different from the first current in a second constant current mode; and charging the battery cell with a second voltage different from the first voltage in a second constant voltage mode.
    Type: Application
    Filed: March 10, 2014
    Publication date: March 19, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Joosick Jung, Subin Song, Myoungseok Lee, Dmitry Golovanov
  • Patent number: 8975871
    Abstract: A power management method and an electronic system using the same are provided. The electronic system includes a display device and an auxiliary device, and has dual batteries and two subsystems. By detection and control mechanisms of the subsystems, the electronic system may allow the display device to maintain in a full power state, in the case where the external power is available or the power of the auxiliary device is sufficient. On the other hand, the auxiliary device may apply to the display device, such as a notebook computer, and the battery time may also be extended since the computer has two batteries.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 10, 2015
    Assignee: ASUSTeK Computer Inc.
    Inventors: Chih-Wan Hsu, Nung-Te Huang, Yi-Wen Chiu, Hsi-Ho Hsu
  • Patent number: 8970163
    Abstract: Provided is a charge control system of a battery pack. The charge control system includes a charge unit, a battery management unit, a charger management unit, and a voltage level shift unit. The charge unit charges a battery. The battery management unit includes first and second ports, determines one of a charge mode and charge stop mode of the battery according to whether the charge unit is disabled, and controls outputs of the first and second ports according to the determined result. The charger management unit is connected to a data input terminal of a charger, and controls an operation of the charger according to a voltage level of the data input terminal. The voltage level shift unit shifts a voltage level of the data input terminal according to the outputs of the first and second ports.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: March 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hanseok Yun
  • Patent number: 8970181
    Abstract: An apparatus and a method to charge a battery, the battery charging apparatus including: a battery unit which is chargeable; a battery charging unit which charges the battery unit; and a controller which adjusts a preset charge voltage of the battery unit based on a charge allowance capacity of the battery unit to have a predetermined value, and controls the battery charging unit to output the adjusted charge voltage and to charge the battery unit. Accordingly, the apparatus and method are capable of charging a battery based on a charge allowance capacity decreased owing to deterioration of the battery to safely use the battery and to extend a life of the battery.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-hum Lee, Jeong-gyu Park, Hyung-wook Choi
  • Patent number: 8970182
    Abstract: A battery cell charger for rapidly charging a lithium ion battery cell (or string of series-parallel connected cells) having a maximum battery cell voltage the battery cell charging system including: a circuit for charging the battery cell using an adjustable voltage charging-profile to apply a charging voltage and a charging current to the battery cell wherein the adjustable voltage charging-profile includes: a first charging stage with a constant first stage charging current and an increasing battery cell voltage with the first stage charging current provided until the first stage charging voltage is about equal to a first stage complete voltage less than the maximum battery cell voltage; one or more intermediate charging stages, each intermediate stage selected from the group consisting of one or more of an intermediate constant voltage stage that provides a decreasing charging current, an intermediate constant current stage that produces an increasing battery cell voltage, and combinations thereof; and a
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: March 3, 2015
    Assignee: Tesla Motors, Inc.
    Inventors: Anil Paryani, Clay H. Kishiyama, Scott I. Kohn, Vineet H. Mehta
  • Patent number: 8963484
    Abstract: By controlling a charging current magnitude for charging a to-be-charged electronic device by a charging electronic device and current magnitudes of other loading elements of the charging electronic device, when the charging electronic device is switched to a fast charge mode or to an efficiency mode from a normal charge mode, a required current can be directly provided to the to-be-charged electronic device without raising a hardware cost for upgrading charging capabilities.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: February 24, 2015
    Assignee: Qisda Corporation
    Inventors: Chen-Yang Hu, Guo-Wei Jung
  • Publication number: 20150042267
    Abstract: System and method for controlling a battery are disclosed. The system includes a battery pack, a wireless charger, a detecting module, a measuring device and a controller. The wireless charger is configured for charging the battery pack and calculating a first charging capacity of the battery pack. The detecting module coupled to the wireless charger, is configured for detecting information associated with the charging. The measuring device is configured for calculating a second charging capacity of the battery pack. The controller is coupled to the wireless charger, the detecting module and the measuring device. The controller is configured for determining whether there is a difference between the first charging capacity and the second charging capacity. The controller is also configured for calculating a third charging capacity of the battery pack based on the information associated with the charging and the difference.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 12, 2015
    Applicant: O2Micro Inc.
    Inventors: James WANG, Weihua ZHANG, Jinghua ZOU, Xinsheng PENG
  • Publication number: 20150028812
    Abstract: A system for connecting an electric vehicle to a Level I or Level II power source. The system including an electric vehicle supply equipment (EVSE) having an electrical plug compatible with a Level I or Level II power outlet, the plug connected to a power cord. The power cord is connected to a housing containing a number of electrical components configured to control the power flow to an electric vehicle to recharge the vehicle's batteries, via either Level I or Level II. The power cord extends from the housing and is connected to a standard electric vehicle connector compatible with battery electric vehicles (BEV) and plug-in hybrid electric vehicles (PHEV). The EVSE further includes safety measures, such as a relay that controls the flow of power to the vehicle connector and a ground fault interrupter, to protect users from high voltage electric shocks.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Michael Muller, Garret Miller, Charles K. Yankitis
  • Publication number: 20150028819
    Abstract: Disclosure has a method for charging a rechargeable battery. The rechargeable battery is charged by a charger in a first constant current mode for a main charge time period. After the main charge time period, the charger stops charging the rechargeable battery for a relaxation time period. During a sample time period that starts after a predetermined settle time period following the beginning of the relaxation time period, the charger detects an open-circuit voltage of the rechargeable battery to compare with a target voltage. If the open-circuit voltage is less than the target voltage, the charger charges the rechargeable battery in a second constant current mode for a coercive charge time period.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Inventors: Yeu Torng Yau, Tsung Liang Hung
  • Publication number: 20150028803
    Abstract: Systems and methods for converting voltages between different voltage levels in a receiver are disclosed. In an aspect, a wireless power receiver apparatus for charging a chargeable device is provided. The apparatus includes a plurality of receive antennas disposed on a cover of the chargeable device, wherein at least one of the plurality of receive antennas is configured to wirelessly receive power according to a wireless charging protocol different from at least one other of the plurality of receive antennas. The apparatus includes a switching circuit disposed on the cover and configured to receive the wireless power from at least one of the plurality of receive antennas and selectively provide a respective voltage from a corresponding one of the plurality of receive antennas across an output configured to be connected to an input of the chargeable device.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Inventors: Sumukh Ashok Shevde, Joseph Najib Maalouf, Francesco Carobolante
  • Patent number: 8941363
    Abstract: Technologies and implementations for device battery management are generally disclosed.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: January 27, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Ezekiel Kruglick