About 27 results
https://drivepatents.com/patents/994314 · 2 Jan 2013
A cell balancing device (1) includes a plurality of serially connected battery modules (8-1 through 8-n), an external generator (3), a transformer 16 including a first coil (20) and a plurality of second coils (21-1 through 21-n) connected in parallel to e...
https://drivepatents.com/patents/996055 · 14 Nov 2012
The charger 10 has first to third charging circuits 12 to 14 including a first charging path that charges battery banks 21 to 23 via current limiting resistors R1 to R3, a second charging path that charges the battery banks 21 to 23 without passing through...
https://drivepatents.com/patents/999801 · 1 Aug 2012
The device (10) has a combinatorial circuit (30) connected to energy storage cells (C1-Cn) and a voltage measuring unit (40). Another combinatorial circuit (60) is connected to an energy storage element, the voltage measuring unit and the former combinator...
https://drivepatents.com/patents/1001184 · 20 Jun 2012
Systems and methods using the same to achieve a multiple battery charger with automatic charge current adjustment have been disclosed. The invention maintains equilibrium of charge levels during charge and discharge between all of the multiple batteries (4...
https://drivepatents.com/patents/1001344 · 13 Jun 2012
A charging control device includes a plurality of battery packs including a secondary battery therein, one or two or more power input units configured to input power, a power integration unit configured to integrate the power input by the one or two or mor...
https://drivepatents.com/patents/1002776 · 2 May 2012
The battery system has a rechargeable battery (10) that includes several energy storage modules (11-1,11-2) having control units (12) which are connected to a network (20). The control units of energy storage modules are connected to each other in master-m...
https://drivepatents.com/patents/1006261 · 11 Jan 2012
A method of operating a battery system includes a plurality of battery cells (24,26,28,30) coupled in series. The plurality of cells (24,26,28,30) includes at least three battery cells coupled in series. The method includes determining a cell with the grea...
https://drivepatents.com/patents/1009247 · 28 Sep 2011
A battery control device for a battery module includes a plurality of integrated circuits CC3A, ..., CC3N, CC4A, ..., CC4N. Each integrated circuit includes: a constant voltage circuit that lowers a total voltage of a battery cell group corresponding to th...
https://drivepatents.com/patents/1009841 · 24 Aug 2011
A management unit (1) and method for managing electric energy stored in a battery (2) composed of a number of series-connected cells (3), the management unit (1) having: a main equalizing circuit (4), which forms the primary of an electric transformer (5) ...
https://drivepatents.com/patents/1013077 · 11 May 2011
In a power converter, a primary winding receives an input power. In addition, multiple secondary windings transform the input power into multiple charging currents to charge a set of cells via a set of paths. The multiple secondary windings further balance...