公开(公告)号：US20130187657A1

公开(公告)日：2013-07-25

申请号：US13744982

申请日：2013-01-18

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Sheng-Hsien YEN

IPC: G01R31/36

CPC classification number: G01R31/3606 ,  G01R31/3624 ,  G01R31/3648 ,  G01R35/005 ,  H01M10/44 ,  H02J7/0078

Abstract: An embodiment of the invention provides a calibration method for an initial discharging curve of a battery. The method includes: acquiring an initial discharging curve of a battery; measuring a first open circuit voltage at a first time point and a second open circuit voltage at a second time point; according to the initial discharging curve, acquiring a first discharge capacity corresponding to the first open circuit voltage and a second discharge capacity corresponding to the second open circuit voltage according to the initial discharging curve; calculating an ideal discharge capacity according to the first discharge capacity and the second discharge capacity; measuring an real discharge capacity between the first time point and the second time point; determining a total discharge capacity difference according to the ideal discharge capacity and the real discharge capacity to calibrate the initial discharging curve to generate a current discharging curve.

Abstract translation: 本发明的实施例提供了一种用于电池的初始放电曲线的校准方法。 该方法包括：获取电池的初始放电曲线; 在第一时间点测量第一开路电压和在第二时间点测量第二开路电压; 根据初始放电曲线，根据初始放电曲线获取与第一开路电压对应的第一放电容量和对应于第二开路电压的第二放电容量; 根据第一放电容量和第二放电容量计算理想的放电容量; 测量第一时间点和第二时间点之间的实际放电容量; 根据理想放电容量和实际放电容量来确定总放电容量差，以校准初始放电曲线以产生电流放电曲线。

公开(公告)号：US20130187609A1

公开(公告)日：2013-07-25

申请号：US13744942

申请日：2013-01-18

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Sheng-Hsien YEN

IPC: H02J7/00

CPC classification number: H02J7/007 ,  H02J7/0016

Abstract: An embodiment of the invention provides a rechargeable battery module including a battery bank having serial connected battery units, a charging transistor providing a charging current to the battery bank, a balancing circuit for detecting and balancing voltage values of battery units and battery bank and a control chip. When a first voltage value of a first battery unit reaches a charge-off voltage, the control chip estimates a first unbalanced voltage difference between the first voltage and the minimal voltage among battery units. The control chip disables the charging transistor and estimates a second unbalanced voltage difference between voltages of the first battery unit and the battery unit having a minimal voltage. The control chip enables the balancing circuit to balance the first battery unit. When the voltage of the first battery is dropped by a calibration target, the charging transistor is enabled.

Abstract translation: 本发明的实施例提供了一种可再充电电池模块，其包括具有串联连接的电池单元的电池组，向电池组提供充电电流的充电晶体管，用于检测和平衡电池单元和电池组的电压值的平衡电路和控制 芯片。 当第一电池单元的第一电压值达到充电关断电压时，控制芯片估计电池单元之间的第一电压和最小电压之间的第一不平衡电压差。 控制芯片禁止充电晶体管并且估计第一电池单元和具有最小电压的电池单元的电压之间的第二不平衡电压差。 控制芯片使平衡电路平衡第一电池单元。 当第一电池的电压由校准目标下降时，充电晶体管被使能。

公开(公告)号：US20130187608A1

公开(公告)日：2013-07-25

申请号：US13744908

申请日：2013-01-18

Applicant: VIA Technologies, Inc.

Inventor： Sheng-Hsien YEN

IPC: H02J7/00

CPC classification number: H02J7/007 ,  H02J7/0016

Abstract: A rechargeable battery module including a plurality of battery cells connected in series, a charging transistor, a balancing circuit and a control chip. The charging transistor is operative to convey a charging current to charge the battery cells. Based on voltage levels of the battery cells, the control chip disables the charging transistor and controls the balancing circuit to perform a first stage battery balance process. After finishing the first stage battery balance process, the control chip enables the charging transistor to charge the battery cells again. After being switched to a constant voltage charging mode, the control chip controls the balancing circuit based on the voltage levels of the battery cells to perform a second stage battery balance process.

Abstract translation: 包括串联连接的多个电池单体的充电电池模块，充电晶体管，平衡电路和控制芯片。 充电晶体管可操作地传送充电电流以对电池单元充电。 基于电池单元的电压电平，控制芯片禁止充电晶体管并控制平衡电路进行第一级电池平衡处理。 在完成第一级电池平衡处理之后，控制芯片使充电晶体管再次对电池单元充电。 在切换到恒压充电模式之后，控制芯片基于电池单元的电压电平来控制平衡电路，以进行第二级电池平衡处理。