公开(公告)号：US20090315514A1

公开(公告)日：2009-12-24

申请号：US12373384

申请日：2007-07-13

Applicant: Dal-Hoon Lee ,  Eguchi Yasuhito ,  Shoji Tanina ,  Jee-Ho Kim

Inventor： Dal-Hoon Lee ,  Eguchi Yasuhito ,  Shoji Tanina ,  Jee-Ho Kim

IPC: H02J7/00

CPC classification number: H02J7/0016

Abstract: A circuit current balancing apparatus balances circuit currents among units of a battery device. The circuit current balancing apparatus is provided with a plurality of cell stacks respectively composed of at least one cell. The apparatus balances a circuit current of a control circuit connected to each of the plurality of cell stacks for controlling and monitoring a status of the cell stack. The apparatus also includes a comparator for calculating and outputting a voltage difference between an output voltage of the corresponding cell stack and a voltage of the control circuit connected to the corresponding cell stack, and a current source for adding or subtract a dummy current to/from a circuit current of the control circuit in correspondence with the output of the comparator.

Abstract translation: 电路电流平衡装置平衡电池装置的单元之间的电路电流。 电路电流平衡装置设置有分别由至少一个单元组成的多个单元堆叠。 该装置平衡连接到多个单元堆叠中的每一个的控制电路的电路电流，以控制和监视单元堆栈的状态。 该装置还包括一个比较器，用于计算和输出相应的单元堆叠的输出电压与连接到相应的单元堆栈的控制电路的电压之间的电压差，以及用于将/ 与比较器的输出对应的控制电路的电路电流。

公开(公告)号：US07535198B2

公开(公告)日：2009-05-19

申请号：US11404286

申请日：2006-04-14

Applicant: Dal Hoon Lee ,  Han Ho Lee ,  Jee Ho Kim ,  Eguchi Yasuhito

Inventor： Dal Hoon Lee ,  Han Ho Lee ,  Jee Ho Kim ,  Eguchi Yasuhito

IPC: H01M10/46

CPC classification number: H02J7/0019 ,  H01M10/0525

Abstract: Disclosed is a switching circuit for balancing battery cells. The switching circuit includes plural pairs of switching means, each pair of which are connected to each other in parallel and interrupt a flow of electric current in a bi-direction in order to reduce the internal voltage applied to the switching means. According to the present invention, since the switching elements of low internal voltage can be used for the switching circuit, it is possible to constitute the switching circuit for cell balancing without use of switching elements of high internal voltage and to reduce the number of MOSFETs, thereby making it possible to design the switching circuit effectively. Since the MOSFETs having the low internal voltage and low resistance are used for the switching circuit, it is possible to reduce a loss of the electric current due to the resistance during the cell balancing, thereby improving the balancing efficiency and reducing heat generation.

Abstract translation: 公开了一种用于平衡电池单元的开关电路。 开关电路包括多对开关装置，每对开关装置彼此并联连接并且中断双向电流，以便减小施加到开关装置的内部电压。 根据本发明，由于低内部电压的开关元件可以用于开关电路，所以可以构成用于电池平衡的开关电路，而不使用高内部电压的开关元件并且减少MOSFET的数量， 从而有可能有效地设计开关电路。 由于使用具有低内部电压和低电阻的MOSFET用于开关电路，因此可以减少由于电池平衡期间的电阻而导致的电流损失，从而提高平衡效率并减少发热。

公开(公告)号：US20080129247A1

公开(公告)日：2008-06-05

申请号：US11722776

申请日：2005-12-22

Applicant: Dal-Hoon Lee ,  Han-ho Lee ,  Jee-ho Kim ,  Eguchi Yasuhito

Inventor： Dal-Hoon Lee ,  Han-ho Lee ,  Jee-ho Kim ,  Eguchi Yasuhito

IPC: H02J7/00

CPC classification number: H02J7/0016 ,  H01M10/0525 ,  H01M10/441 ,  H01M10/482 ,  H02J7/0029

Abstract: Disclosed are system and method for adjusting a voltage balancing of cell in a lithium ion multicell battery pack The system comprises a multicell battery pack including a master module and a slave module; a CPU located in the system controller and outputting a synchronization signal for each of cells in the master module and the slave module, a first vertical interface transmitting the synchronization signal outputted from the CPU to the master module; and a second vertical interface transmitting the synchronization signal to the slave module through the first vertical interface. Accordingly, it is possible to read voltages of all cells in the one battery pack with a same timing and thus to prevent a cell voltage reading error due to the voltage reading time difference, thereby increasing an accuracy of a voltage balancing of the cells.

Abstract translation: 公开了一种用于调整锂离子多电池电池组中的电池的电压平衡的系统和方法。该系统包括：具有主模块和从模块的多单元电池组; 位于系统控制器中的CPU，为主模块和从模块中的每个单元输出同步信号;第一垂直接口，将从CPU输出的同步信号发送到主模块; 以及通过第一垂直接口将同步信号发送到从模块的第二垂直接口。 因此，可以以相同的定时读取一个电池组中的所有单元的电压，从而防止由于电压读取时间差引起的单元电压读取误​​差，从而提高单元的电压平衡的精度。