公开(公告)号：US06577135B1

公开(公告)日：2003-06-10

申请号：US10119385

申请日：2002-04-09

Applicant: Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

Inventor： Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

IPC: G01N27416

CPC classification number: G01R19/0092 ,  G01R19/16542 ,  G01R31/3613 ,  G01R31/362 ,  G01R31/3655 ,  G01R31/3675 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0004 ,  H02J7/0011 ,  H02J7/008

Abstract: A battery detect circuit (32) is provided that is operable to dispose a sense resistor (50) in series with the battery to determine whether the charge is being provided to the battery or being extracted from the battery. The voltage across the sensor resistor (50) is sensed by a voltage/frequency converter (52). The voltage/frequency converter (52) is a differential structure comprised of two integrator structures (102) and (104) that are operable to utilize a switched capacitor configuration to drive comparators on the output thereof. Each of the integrator structures (102) and (104) has associated therewith passive elements and active elements. The integrators (102) and (104) have associated therewith integration capacitors (147) and (149). Additionally, there are two operational amplifiers (143) and (145) that provide the active components of each of the integrators (102) and (104). The various switched capacitor circuits (161) and (163) associated with the amplifiers (143) and (145) are provided to provide the integration operation. Both the amplifiers (143) and (145) and their associated switched capacitor circuits (161) and (163) are dynamically balanced such that they are switched between integrator (102) and integrator (104) on a periodic basis. This therefore allows the errors between the active and passive elements to be switched between the two integrators (102) and (104) such that no accumulative error occurs.

Abstract translation: 提供了一种电池检测电路（32），其可操作以配置与电池串联的检测电阻器（50），以确定电池是提供给电池还是从电池中提取。 传感器电阻（50）两端的电压由电压/频率转换器（52）感测。 电压/频率转换器（52）是由两个积分器结构（102）和（104）组成的差分结构，其可操作以利用开关电容器配置来驱动其输出上的比较器。 积分器结构（102）和（104）中的每一个都与无源元件和有源元件相关联。 积分器（102）和（104）具有与其集成电容器（147）和（149）相关联。 另外，有两个运算放大器（143）和（145）提供每个积分器（102）和（104）的有源分量。 提供与放大器（143）和（145）相关联的各种开关电容器电路（161）和（163）以提供集成操作。 放大器（143）和（145）及其相关联的开关电容器电路（161）和（163）都被动态平衡，使得它们在周期性的基础上在积分器（102）和积分器（104）之间切换。 因此，允许有源和无源元件之间的错误在两个积分器（102）和（104）之间切换，使得不发生累积误差。

公开(公告)号：US06369576B1

公开(公告)日：2002-04-09

申请号：US08794727

申请日：1997-02-03

Applicant: Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

Inventor： Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

IPC: G01N27416

CPC classification number: G01R19/0092 ,  G01R19/16542 ,  G01R31/3613 ,  G01R31/362 ,  G01R31/3655 ,  G01R31/3675 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0004 ,  H02J7/0011 ,  H02J7/008

Abstract: A battery charging system is provided which is comprised of a battery pack (30) and a charging system (20). The battery pack (30) includes a battery (10) and a battery capacity detect circuit (32). The battery capacity detect circuit (32) having a memory is interfaced with the charging system (20) through a communication link to output a CHG-Bar signal. The battery capacity detect circuit (32) is operable to perform numerous monitoring operations on the battery by detecting the charge input to the battery and detecting charge taken away from the battery in a discharge operation. This operation is performed independent of the charging operation by the charging system (20). However, the charging operation of the charger (22) can be affected with the CHG-Bar signal.

Abstract translation: 提供由电池组（30）和充电系统（20）组成的电池充电系统。 电池组（30）包括电池（10）和电池容量检测电路（32）。 具有存储器的电池容量检测电路（32）通过通信链路与充电系统（20）接口，以输出CHG-Bar信号。 电池容量检测电路（32）可操作以通过检测输入到电池的电荷并且在放电操作中检测从电池取走的电荷来对电池执行大量监视操作。 执行该操作，而与充电系统（20）的充电操作无关。 然而，充电器（22）的充电操作可能受到CHG-Bar信号的影响。

公开(公告)号：US6107802A

公开(公告)日：2000-08-22

申请号：US174693

申请日：1998-10-19

Applicant: Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

Inventor： Wallace Edward Matthews ,  David Louis Freeman ,  John Edward Landau

IPC: G01R19/00 ,  G01R31/36 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00 ,  G01N27/416

CPC classification number: G01R31/362 ,  G01R19/0092 ,  G01R19/16542 ,  G01R31/3613 ,  G01R31/3655 ,  G01R31/3675 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H02J7/0004 ,  H02J7/0011 ,  H02J7/008

Abstract: A battery charging system is provided which is comprised of a battery pack (30) and a charging system (20). The battery pack (30) includes a battery (10) and a battery capacity detect circuit (32). The battery capacity detect circuit (32) is interfaced with the charging system (20) through a single line to output a CHG-Bar signal. The battery capacity detect circuit (32) is operable to perform numerous monitoring operations on the battery by detecting the charge input to the battery and detecting charge taken away from the battery in a discharge operation. This operation is performed independent of the charging operation by the charging system (20). However, the charging operation of the charger (22) can be affected with the CHG-Bar signal.

Abstract translation: 提供由电池组（30）和充电系统（20）组成的电池充电系统。 电池组（30）包括电池（10）和电池容量检测电路（32）。 电池容量检测电路（32）通过单个线路与充电系统（20）接口以输出CHG-Bar信号。 电池容量检测电路（32）可操作以通过检测输入到电池的电荷并且在放电操作中检测从电池取走的电荷来对电池执行许多监视操作。 执行该操作，而与充电系统（20）的充电操作无关。 然而，充电器（22）的充电操作可能受到CHG-Bar信号的影响。