Invention Grant
- Patent Title: Battery with autonomous cell balancing
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Application No.: US13978322Application Date: 2011-11-09
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Publication No.: US09755451B2Publication Date: 2017-09-05
- Inventor: Stefan Butzmann
- Applicant: Stefan Butzmann
- Applicant Address: DE Stuttgart KR Yongin-si, Gyeonggi-do
- Assignee: Robert Bosch GmbH,Samsung SDI Co., Ltd.
- Current Assignee: Robert Bosch GmbH,Samsung SDI Co., Ltd.
- Current Assignee Address: DE Stuttgart KR Yongin-si, Gyeonggi-do
- Agency: Maginot, Moore & Beck LLP
- Priority: DE102011002452 20110105
- International Application: PCT/EP2011/069729 WO 20111109
- International Announcement: WO2012/092992 WO 20120712
- Main IPC: H02J1/00
- IPC: H02J1/00 ; H02J7/00 ; H01M10/42 ; H01M10/44

Abstract:
The disclosure relates to a device for balancing the battery cells of a battery including a plurality of pairs of battery cells. Each pair of battery cells is connected to a charge balancing unit which is configured to balance the cell voltages of the battery cells of the pair of battery cells with respect to each other. The device further includes a measuring device which is configured to output a current that is proportional to a minimal cell pair voltage to a plurality of resistors that are connected in series. Comparators are also provided, each of which is connected to a pole of a first battery cell of an assigned pair of battery cells and to a respective resistor on an input side and to a control electrode of a respective discharging unit on an output side.
Public/Granted literature
- US20140035360A1 Battery with Autonomous Cell Balancing Public/Granted day:2014-02-06
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