About 27 results
https://drivepatents.com/patents/963814 · 21 Jan 2015
A microcomputer (3) finds a variation in respective unit cells (CL1 to CLn) based on an output from a voltage detection circuit (21), and executes equalization by controlling FETs (Q11 to Q1n) and connecting unit cells having high both-end voltages in the ...
https://drivepatents.com/patents/973618 · 18 Jun 2014
An equalization circuit (2) includes: discharge sections (D) which are provided correspondingly to secondary batteries (B) respectively, and discharge the corresponding secondary batteries (B) to convert energy resulting from the discharge into heat; a tem...
https://drivepatents.com/patents/975697 · 23 Apr 2014
The system has a set of energy storage modules (2a, 2b), and an interconnection interface (3), where each of the energy storage modules comprises two connection terminals of opposite polarities. The interface forms branches connected in parallel between tw...
https://drivepatents.com/patents/976546 · 9 Apr 2014
To satisfactorily carry out balancing even when balancing control is suspended. It is selected according to a condition which of battery cell information (old state information) by the last balancing stored in a storage device and battery cell information ...
https://drivepatents.com/patents/979682 · 15 Jan 2014
A balance correcting circuit is prevented from moving charges from a low-voltage electricity storage cell to a high-voltage electricity storage cell in a electricity storage system. The balance correcting circuit includes an inductor, a first switching dev...
https://drivepatents.com/patents/988369 · 24 Jul 2013
Cell voltage equalizer includes voltage detection ICs configured to measure output voltages from cells, respectively; discharge circuits (40) provided to the respective cells, and configured to discharge the output voltages from the respective cells; and a...
https://drivepatents.com/patents/984934 · 24 Apr 2013
A battery balancing method and system is provided. The system includes a plurality of cells connected in series, a balancer for each cell, a monitor configured to determine a state of charge (SOC) of each cell, and a microprocessor. The microprocessor is c...
https://drivepatents.com/patents/994532 · 2 Jan 2013
Provided are an apparatus and a method for diagnosing an abnormality in a cell balancing circuit. The apparatus may include a floating capacitor charged with voltage of a battery cell, a cell balancing circuit for discharging the floating capacitor, a volt...
https://drivepatents.com/patents/996367 · 31 Oct 2012
In one embodiment, an energy storage cell arrangement is provided. The arrangement includes a plurality of battery cells coupled in series and a plurality of first circuits coupled to respective subsets of the plurality of cells. Each first circuit is conf...
https://drivepatents.com/patents/997300 · 10 Oct 2012
Balancer circuit for a cell in a rechargeable battery, having connecting terminals (T1, T2) for connection of the balancer circuit to the cell. A first resistor (R1) is connected to one of the connecting terminals (T1; T2), and a voltage switch (S; U1) is ...