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8638105 Cell telemetry sample and hold amplifier  
A system and methods for cell telemetry are disclosed. An average magnetizing current in a sampling transformer is forced to about zero amperes by balancing volt-seconds using a voltage clamp...
8629687 Disconnection detecting device  
A control circuit turns on a switching element to discharge a capacitor, and after a voltage between both ends of the capacitor becomes zero, the control circuit turns off the switching element....
8618805 Battery pack with a battery protection circuit  
A battery circuit includes a monitoring circuit, an integrator circuit, and a comparator. The monitoring circuit can be used to monitor a cell and generate a monitoring signal indicating a cell...
8609289 Fuel cell system  
Provided is a fuel cell system that can suitably control a voltage converter in response to a judgment that an abnormal condition occurs in a power detection unit that detects a power passing...
8587318 Sensor arrangement for an energy storage device and a method of using the same  
A sensor arrangement and method that may be used with a variety of different energy storage devices, including battery packs found in hybrid vehicles, battery electric vehicles, and other types of...
8575875 Control device for voltage converter, vehicle equipped with the same, and control method for voltage converter  
In a converter of a motor drive control device, one of a first switching element and a second switching element is selected in accordance with a current command value of a current flowing through...
8570046 System and method for nondestructive testing of thermal batteries  
The present invention generally relates to a thermal battery testing apparatus and a method for testing a thermal battery. The method includes one or more of the following steps: connecting the...
8547107 Self-diagnostic apparatus for electrical storage system  
A startup self-diagnostic apparatus for an electrical storage system including an electrical storage device, a charge and discharge switch device disposed to be connected to the electrical storage...
8536835 Supply and demand control apparatus for electric power system, and storage medium storing supply and demand control program  
According to one embodiment, the economical load dispatcher calculates a discharging threshold value and a charging threshold value based on a discharging unit price of and a charging and...
8527224 Apparatus using a battery  
An apparatus using a battery includes a receiving unit, a determination unit and a calculation unit. The receiving unit receives a dischargeable capacity, a first voltage and a second voltage from...
8521458 Apparatus and method for detecting charged state of electric storage device  
Provided is an apparatus for detecting state of charge (SOC) of a battery. A voltage of a battery pack (100) is detected by voltage sensors (120-1) to (120-n). A determining unit (160) samples...
8502541 Battery testing dynamic delta voltage measurement  
A method of evaluating battery packs is described. The method includes measuring a cell open voltage for each battery cell group in a section of battery cells; measuring a voltage under charge, or...
8493069 Method and apparatus for displaying state of current consumption of a battery in portable terminal  
A method and apparatus for displaying a state of current consumption of a battery in a portable terminal are provided. The method includes measuring a value of consumed current at a preset period,...
8487630 Battery pack and method for detecting degradation of battery  
A battery pack includes: one or two or more secondary batteries; a charge control switch that turns on/off a charging current to the secondary battery; a discharge control switch that turns on/off...
8473231 Systems and methods for monitoring deterioration of a rechargeable battery  
Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and...
8461846 Vehicle battery testing  
A method of estimating a state of charge of a battery in a vehicle undergoing a vehicle assembly process. The method may include the steps of: installing the battery in the vehicle; employing a...
8443130 USB port detecting circuit  
A Universal Series Bus USB port detection and testing circuit, configured to detect the voltage output of a USB port of an electronic device, includes a voltage comparing circuit and an indicating...
8441263 Voltage monitor with self diagnostic function  
In a voltage monitor, an abnormality detecting unit receives first information outputted from a first obtaining unit and second information outputted from a second obtaining unit, and determines...
8436620 Voltage monitoring using bitstream signal processing  
Systems and methods are provided for monitoring a voltage. A level shifter is configured to generate a current proportional to the voltage of the battery cell. A delta-sigma modulator is...
8432125 Non-contact power transmission apparatus  
A non-contact power transmission apparatus having an AC power source and a resonance system is disclosed. The resonance system has a primary coil connected to the AC power source, a primary side...
8427167 Architecture and method to determine leakage impedance and leakage voltage node  
A circuit, system and method for detecting the presence of a leakage path in a multi-cell voltage source is described. The system includes a detection circuit, the detection circuit having a first...
8421416 Battery charge compensation  
A battery charger and method for a rechargeable battery pack which includes various elements in series with the cells to be charged, including but not limited to current control FETs, a fuse,...
8423095 System and method of determining standby time for mobile stations by connecting a simulator to the mobile station, measuring average current consumption, and determining actual battery capacity usage  
A method and system for determining standby time for a mobile station uses a battery simulator, a base station emulator, a computer to control the test equipment and MSUT for testing a mobile...
8421468 Internal resistance estimation apparatus for power storage device, degradation determination apparatus for power storage device, power supply system, and internal resistance estimation method for power storage device  
A converter control unit responds to a command from a start determining unit to control a converter such that a ripple current is generated at a secondary battery. A storage unit stores a map...
8415954 Apparatus for calculating polarization voltage of secondary battery and apparatus for estimating state of charge of the same  
There is provided an apparatus that calculates a polarization voltage of a secondary battery. A temperature sensor detects a temperature of the secondary battery; a voltage sensor detects a...
8410783 Detecting an end of life for a battery using a difference between an unloaded battery voltage and a loaded battery voltage  
One particular implementation conforming to aspects of the present invention takes the form of a method for detecting the end of life of a battery for an electronic device. The method may include...
8405399 Method to predict min cell voltage from discrete min cell voltage output of stack health monitor  
A system for estimating parameters of a fuel cell stack. The system includes a stack health monitor for monitoring minimum cell voltage, stack voltage and current density of the fuel cell stack....
8400163 Voltage detecting circuit  
A voltage detecting circuit includes a switch group that selects any one of a plurality of battery cells connected in series, a sampling capacitor that maintains a potential difference between a...
8395355 Power supply system and vehicle with the system  
A vehicle includes a charging unit receiving electric power from an external power source and externally charging a power storage unit. When a connector unit is coupled to the vehicle and a state...
8390296 Method and apparatus for detecting abnormality of current sensor in battery pack  
Disclosed are a method and an apparatus for detecting abnormality of a current sensor operative to measure a charge or discharge current of a battery pack. The method comprises measuring current...
8378686 Apparatus and method for sensing battery cell voltage using isolation capacitor  
An apparatus for measuring a battery cell voltage includes a battery having a cell group; a first switching unit for selectively connecting both terminals of each battery cell of the cell group to...
8373408 High precision algorithmically assisted voltage divider with fault detection  
A method, an algorithm, and circuits for implementation of a high-accuracy voltage divider are described that include a capability of fault detection. The disclosure allows for correction of...
8362909 Systems, methods and apparatus for determining whether a low battery condition exists in a remote control  
Various embodiments of systems, methods and apparatus are provided for adjusting a low battery detection threshold in a remote control. An embodiment of a method includes determining a type of a...
8344732 Measuring system  
There is provided a measuring system capable of rendering a power source voltage of an internal circuit higher than a drivable voltage of the internal circuit by removing or reducing a chloride...
8330468 Vehicle control system having automatic engine stop function selectively enabled/disabled based on estimated charge amount in battery  
Each time that starting of a vehicle engine is completed, a vehicle control system derives an estimated amount by which the charge in the vehicle battery is less than a predetermined upper limit...
8330469 Battery voltage monitoring apparatus  
A battery voltage monitoring apparatus monitoring an assembled battery voltage, the assembled battery including a plurality of battery cells, includes a voltage sensor detecting potential of the...
8314594 Capacity fade adjusted charge level or recharge interval of a rechargeable power source of an implantable medical device, system and method  
System and method for estimating the time before recharging the rechargeable power source of an implantable medical device. In a method, the present charge level of the power source is determined...
8305085 Lithium-ion battery controlling apparatus and electric vehicle  
A lithium-ion battery controlling apparatus includes a controller. The controller is configured to raise an upper-limit voltage in response to capacity degradation of a lithium-ion battery which...
8305084 Voltage measuring apparatus for assembled battery  
A voltage measuring apparatus measures an output voltage of an assembled battery in which a plurality of unit cells are connected in series and are divided into a plurality of blocks. The...
8305043 Voltage detecting apparatus with voltage controlled oscillator and battery state control system  
In a voltage detecting apparatus, a voltage controlled oscillator, when an input voltage is applied thereto, outputs a signal with a logical value that is periodically inverted. A detector counts...
8289027 Apparatus for monitoring cell voltage and fuel cells using the same  
Disclosed is a cell voltage monitoring apparatus for monitoring output voltages of a plurality of unit cells in a cell having the unit cells. The cell voltage monitoring apparatus includes: a...
8274261 Cell monitoring and balancing  
A method for monitoring the voltage of each of a plurality of cells of a battery pack is provided. The method may include monitoring a voltage potential for each of a plurality of cells in a...
8265821 Method for determining a voltage level across an electric circuit of a powertrain  
A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage...
8258793 Method for use when charging a vehicle battery pack  
A method for use with a vehicle battery pack, where the method determines a voltage threshold that may prevent the vehicle battery pack from being overcharged. The voltage threshold may be a...
8255176 Systems and methods for monitoring deterioration of a rechargeable battery  
Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and...
8237447 Apparatus for detecting state of storage device  
An apparatus for detecting the state of a storage device prevents occurrence of a leakage current. A low-level detection unit is provided for each of blocks of a battery pack. Control units are...
8232767 Apparatus and method of testing for battery  
The present invention relates to an apparatus and method for testing batteries, which can prevent errors from occurring due to the tolerance of voltage sensors when the charged states of batteries...
8222904 Battery end-point voltage detection method and battery end-point voltage detection system  
Battery driven display device includes a battery, first and second comparators, non-volatile memory, controller driven by the voltage of the battery, and display device. Non-volatile memory stores...
8210145 Engine start device  
An engine start device includes a generator, a battery charged by the generator, a starter, an electric double layer capacitor and a DC/DC converter. The electric double layer capacitor is...
8214164 Abnormal battery depletion detection in an implantable device  
Abnormal battery depletion can be detected in an implantable medical device. Battery capacity consumed can be measured using a coulometer and using a capacity-by-voltage device, and the...