公开(公告)号：US20130342214A1

公开(公告)日：2013-12-26

申请号：US13923777

申请日：2013-06-21

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Yi-shing LIN

IPC: G01R31/36

CPC classification number: G01R31/3658 ,  G01R31/3606

Abstract: A battery management system for a battery pack including a plurality of battery cells connected in series is provided. The battery management system includes a voltage divider, a plurality of switching units and a detection circuit. Each switching unit is corresponding to one of the battery cell and coupled between an anode of the corresponding battery cell and the voltage divider. When a control signal directs one of the switching units to turn on, the voltage divider divides a voltage difference transmitted from the one of the switching units to obtain a divided voltage signal, and transmits the divided voltage signal to the detection circuit, and the detection circuit detects the voltage difference according to the divided voltage signal, wherein the voltage difference is a voltage difference between an anode of the battery cell corresponding to the one of the switching units and a ground.

Abstract translation: 提供了一种包括串联连接的多个电池单体的电池组的电池管理系统。 电池管理系统包括分压器，多个开关单元和检测电路。 每个开关单元对应于电池单元之一并且耦合在相应的电池单元的阳极和分压器之间。 当控制信号指示开关单元中的一个导通时，分压器分离从开关单元之一发送的电压差以获得分压电压信号，并将分压电压信号发送到检测电路，并且检测 电路根据分压电压信号检测电压差，其中电压差是与一个开关单元相对应的电池单体的阳极与地之间的电压差。

公开(公告)号：US20160313406A1

公开(公告)日：2016-10-27

申请号：US15202065

申请日：2016-07-05

Applicant: VIA TECHNOLOGIES, INC.

Inventor： Yi-shing LIN

IPC: G01R31/36

CPC classification number: G01R31/3658 ,  G01R31/3606

Abstract: A battery management system for a battery pack including a plurality of battery cells connected in series is provided. The battery management system includes a first switching unit coupled to an anode of a first battery cell of the battery pack, having a first P-type transistor coupled to the anode of the first battery cell, a first resistor coupled between the anode of the first battery cell and a gate of the first P-type transistor, and a current mirror coupled to the gate of the first P-type transistor and the first resistor, draining a first mirror current from the first resistor in response to a control signal, so as to turn on the first P-type transistor. The system further includes a detection circuit coupled to the first switching unit.

Abstract translation: 提供了一种包括串联连接的多个电池单体的电池组的电池管理系统。 电池管理系统包括耦合到电池组的第一电池单元的阳极的第一开关单元，具有耦合到第一电池单元的阳极的第一P型晶体管，耦合在第一电池单元的阳极之间的第一电阻器 电池单元和第一P型晶体管的栅极以及耦合到第一P型晶体管和第一电阻器的栅极的电流镜，响应于控制信号从第一电阻器排出第一反射镜电流，因此 以打开第一个P型晶体管。 该系统还包括耦合到第一开关单元的检测电路。