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1. 发明授权

US5661393A Circuit and method for detecting and indicating the state of charge of a cell or battery 失效
标题翻译：用于检测和指示电池或电池的充电状态的电路和方法
公开(公告)号：US5661393A
公开(公告)日：1997-08-26
申请号：US415852
申请日：1995-04-03
申请人： Upal Sengupta
发明人： Upal Sengupta
IPC分类号： H02J7/00 , H01M10/46
CPC分类号： H02J7/0078 , Y10S320/21
摘要： A circuit and method for detecting and indicating the state of charge of an electrochemical cell or battery are disclosed. The invention finds particular application in the field of battery chargers for alkaline manganese dioxide cells, but may also be used in other types of chargers and electrochemical cells or batteries. In one preferred feature of the invention, a circuit low-pass filters or time-averages a charge enable control or transistor base drive signal, and provides the filtered or averaged signal as a first input to a comparator. The second input to the comparator is a predetermined reference voltage. When the voltage of the low-pass filtered or time-averaged signal becomes less than the reference voltage, the output of the comparator changes state. The change in state indicates that the cell has attained a full state of charge. Microprocessor means for accomplishing the same state of charge detection function are also disclosed.
摘要翻译：公开了用于检测和指示电化学电池或电池的充电状态的电路和方法。本发明特别适用于碱性二氧化锰电池的电池充电器领域，但也可用于其他类型的充电器和电化学电池或电池。在本发明的一个优选特征中，电路低通滤波器或对电荷使能控制或晶体管基极驱动信号进行时间平均，并且将滤波或平均的信号提供给比较器的第一输入。比较器的第二输入是预定的参考电压。当低通滤波或时间平均信号的电压变得小于参考电压时，比较器的输出改变状态。状态的变化表明电池已达到完全的充电状态。还公开了用于完成相同状态的电荷检测功能的微处理器装置。

2. 发明授权

US5652496A Electrical device having a discriminating, rechargeable battery system 失效
标题翻译：电气设备具有识别的可充电电池系统
公开(公告)号：US5652496A
公开(公告)日：1997-07-29
申请号：US606015
申请日：1996-02-12
申请人： James G. Pilarzyk , Upal Sengupta , Steven R. Ruth
发明人： James G. Pilarzyk , Upal Sengupta , Steven R. Ruth
IPC分类号： H02J7/00 , H02J7/02
CPC分类号： H02J7/027 , H02J7/0045
摘要： In accordance with the present invention, a portable electrical device with a discriminating, rechargeable battery system is provided. The rechargeable battery system includes a load circuit connected to a discharge contact adapted to electrically couple to an electrical terminal on a battery to receive power therefrom whereby either a first battery having a predetermined feature or a second battery lacking the predetermined feature may be coupled thereto. The system further includes a charger circuit connected to a charging contact adapted to electrically couple to the same electrical terminal on the battery to provide a charging current to the battery from an outside power source. An inhibitor is associated with the charger circuit and is adapted to cooperate with the predetermined feature to only allow the coupling of the charging contact with the electrical terminal of the first battery thereby preventing the coupling of the charging contact with the electrical terminal of the second battery. As such, only a battery having the predetermined feature may receive the charging current.
摘要翻译：根据本发明，提供了一种具有辨别的可再充电电池系统的便携式电气设备。可充电电池系统包括连接到放电接触器的负载电路，其适于电耦合到电池上的电端子以从其接收功率，由此具有预定特征的第一电池或具有预定特征的第二电池可以耦合到其上。该系统还包括连接到充电接点的充电器电路，该充电触头适于电耦合到电池上的相同电端子，以从外部电源向电池提供充电电流。抑制剂与充电器电路相关联并且适于与预定特征配合以仅允许充电触点与第一电池的电端子耦合，从而防止充电触点与第二电池的电端子的耦合。因此，只有具有预定特征的电池才能接收充电电流。

3. 发明授权

US5561361A Computer power supply and battery recharging system 失效
标题翻译：电脑电源和电池充电系统
公开(公告)号：US5561361A
公开(公告)日：1996-10-01
申请号：US245684
申请日：1994-05-18
申请人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
发明人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
IPC分类号： G01R31/36 , H01M10/42 , H01M10/48 , H02J7/00 , H01M10/46
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3655 , H01M10/4257 , H01M10/48 , H02J7/0003 , H02J7/0004 , H02J7/0011 , H02J7/0068 , G01R31/3675 , Y10S320/10
摘要： A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range. As such, the battery charger is adapted to efficiently utilize the residual capacity of the battery charger system for optimizing charging of the battery packs during all operating conditions of the computer system. Moreover, the use of a PWM signal from the battery pack to control the battery charger enables a single type of battery charger to be utilized for various battery technologies.
摘要翻译：例如，与便携式个人计算机一起使用的电源系统包括智能电池组和充电系统。智能电池组配备有专用微控制器，用于控制电池充电系统的充电水平。特别地，包括电池的电压和温度的电池的状态与表示计算机系统的当前负载需求的信号一起被施加到微控制器。微控制器又以固定频率，可变占空比脉宽调制（PWM）信号的形式提供控制信号，用于控制电池充电系统的充电电平。 PWM信号的占空比用于调节由电池充电器提供的充电电流。特别地，PWM信号的DC值用作参考，以控制调节器的充电电流以提供具有相对宽的电流范围的可变输出充电电流。因此，电池充电器适于在计算机系统的所有操作条件期间有效地利用电池充电器系统的剩余容量来优化电池组的充电。此外，使用来自电池组的PWM信号来控制电池充电器使得能够将单一类型的电池充电器用于各种电池技术。

4. 发明授权

US5541490A Computer power supply system 失效
标题翻译：电脑电源系统
公开(公告)号：US5541490A
公开(公告)日：1996-07-30
申请号：US245004
申请日：1994-05-18
申请人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
发明人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
IPC分类号： G01R31/36 , H01M10/42 , H01M10/48 , H02J7/00 , H01M10/46
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3655 , H01M10/4257 , H01M10/48 , H02J7/0003 , H02J7/0004 , H02J7/0011 , H02J7/0068 , G01R31/3675 , Y10S320/10
摘要： A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The microcontroller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range. As such, the battery charger is adapted to efficiently utilize the residual capacity of the battery charger system for optimizing charging of the battery packs during all operating conditions of the computer system. Moreover, the use of a PWM signal from the battery pack to control the battery charger enables a single type of battery charger to be utilized for various battery technologies.
摘要翻译：例如，与便携式个人计算机一起使用的电源系统包括智能电池组和充电系统。智能电池组配备有专用微控制器，用于控制电池充电系统的充电水平。特别地，包括电池的电压和温度的电池的状态与表示计算机系统的当前负载需求的信号一起被施加到微控制器。微控制器又以固定频率，可变占空比脉宽调制（PWM）信号的形式提供控制信号，用于控制电池充电系统的充电电平。 PWM信号的占空比用于调节由电池充电器提供的充电电流。特别地，PWM信号的DC值用作参考，以控制调节器的充电电流以提供具有相对宽的电流范围的可变输出充电电流。因此，电池充电器适于在计算机系统的所有操作条件期间有效地利用电池充电器系统的剩余容量来优化电池组的充电。此外，使用来自电池组的PWM信号来控制电池充电器使得能够将单一类型的电池充电器用于各种电池技术。

5. 发明授权

US06320354B1 Method and apparatus for battery charging 有权
标题翻译：电池充电的方法和装置
公开(公告)号：US06320354B1
公开(公告)日：2001-11-20
申请号：US09621266
申请日：2000-07-21
申请人： Upal Sengupta , John W. Oglesbee
发明人： Upal Sengupta , John W. Oglesbee
IPC分类号： H01M1044
CPC分类号： H01M10/44 , G01R31/3648 , H01M10/46 , H02J7/0086
摘要： A battery charging circuit comprises a recharge input and a recharge output with a switching element electrically coupled in series between the recharge input and output. A recharge controller controls a conducting state of the switching element. When in a conducting state, recharge current can flow from the recharge input to the recharge output, thereby allowing a rechargeable battery coupled to the recharge output to be recharged. During periodically occurring intervals, the recharge controller switches the switching element to a non-conducting state such that the recharge current no longer flows to the recharge output. During the intervals, a battery voltage input is sampled to determine a charge state of the battery. The switching element is subsequently returned to a conducting state when further recharging is necessary, or left in a non-conducting state when sufficient recharging has occurred.
摘要翻译：电池充电电路包括充电输入和充电输出，其中充电输入和充电输出与在再充电输入和输出之间串联电耦合的开关元件。充电控制器控制开关元件的导通状态。当处于导通状态时，再充电电流可以从充电输入流向再充电输出，从而使与再充电输出相连的可再充电电池被充电。在周期性发生的间隔期间，再充电控制器将开关元件切换到非导通状态，使得再充电电流不再流向再充电输出。在间隔期间，对电池电压输入进行采样以确定电池的充电状态。当需要进一步的充电时，开关元件随后返回到导通状态，或者当发生足够的充电时保持在非导通状态。

6. 发明授权

US6134612A External modular bay for housing I/O devices 失效
标题翻译：外部模块化托架，用于容纳I / O设备
公开(公告)号：US6134612A
公开(公告)日：2000-10-17
申请号：US905912
申请日：1997-08-04
申请人： Larry D. Bailey , Rodman S. Brahman , Peter A. Ojeda , William C. Hallowell , Larry L. Jeffery , Upal Sengupta , Norman D. Stobert , Robert R. Turnbull , Russell S. Uithoven , John P. Wagner , Bruce Wang
发明人： Larry D. Bailey , Rodman S. Brahman , Peter A. Ojeda , William C. Hallowell , Larry L. Jeffery , Upal Sengupta , Norman D. Stobert , Robert R. Turnbull , Russell S. Uithoven , John P. Wagner , Bruce Wang
IPC分类号： G06F1/16 , G11B31/00 , G11B33/12 , G06F13/00
CPC分类号： G11B33/12 , G06F1/1632 , G11B31/00
摘要： An external flexible bay system includes an external flexible bay, a modular battery pack and a modular disk drive. The external flexible bay is adapted to receive either the modular battery pack or the modular disk drive to facilitate use of such devices with a portable PC. The external flexible bay includes a parallel port which enables an external I/O device, such as a printer, to be connected thereto. The external flexible bay contains circuitry to automatically sense whether a printer is connected and to determine whether a modular battery pack or modular disk drive has been inserted therein. In order to ensure proper configuration, the external flexible bay includes a mode switch for selecting between a floppy mode and a printer mode.
摘要翻译：外部柔性托架系统包括外部柔性托架，模块化电池组件和模块化磁盘驱动器。外部柔性托架适于接收模块化电池组或模块化磁盘驱动器，以便于使用便携式PC的这种设备。外部柔性托架包括一个并行端口，其能够使诸如打印机的外部I / O设备连接到其上。外部柔性托架包含自动检测打印机是否连接的电路，并确定是否已插入模块化电池组或模块化磁盘驱动器。为了确保正确的配置，外部柔性托架包括用于在软盘模式和打印机模式之间进行选择的模式开关。

7. 发明授权

US5847546A System and apparatus for generating a continuosly variable reference signal for controlling battery cell charging 失效
标题翻译：用于产生用于控制电池单元充电的连续可变参考信号的系统和装置
公开(公告)号：US5847546A
公开(公告)日：1998-12-08
申请号：US858202
申请日：1997-05-14
申请人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian Carl Fritz
发明人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian Carl Fritz
IPC分类号： G01R31/36 , H01M10/42 , H01M10/48 , H02J7/00 , H01M10/46
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3655 , H01M10/4257 , H01M10/48 , H02J7/0003 , H02J7/0004 , H02J7/0011 , H02J7/0068 , G01R31/3675 , Y10S320/10
摘要： A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range. As such, the battery charger is adapted to efficiently utilize the residual capacity of the battery charger system for optimizing charging of the battery packs during all operating conditions of the computer system. Moreover, the use of a PWM signal from the battery pack to control the battery charger enables a single type of battery charger to be utilized for various battery technologies.
摘要翻译：例如，与便携式个人计算机一起使用的电源系统包括智能电池组和充电系统。智能电池组配备有专用微控制器，用于控制电池充电系统的充电水平。特别地，包括电池的电压和温度的电池的状态与表示计算机系统的当前负载需求的信号一起被施加到微控制器。微控制器又以固定频率，可变占空比脉宽调制（PWM）信号的形式提供控制信号，用于控制电池充电系统的充电电平。 PWM信号的占空比用于调节由电池充电器提供的充电电流。特别地，PWM信号的DC值用作参考，以控制调节器的充电电流以提供具有相对宽的电流范围的可变输出充电电流。因此，电池充电器适于在计算机系统的所有操作条件期间有效地利用电池充电器系统的剩余容量来优化电池组的充电。此外，使用来自电池组的PWM信号来控制电池充电器使得能够将单一类型的电池充电器用于各种电池技术。

8. 发明授权

US5838141A Method for generating a continuously variable reference signal for controlling battery cell charging 失效
标题翻译：用于产生用于控制电池单元充电的连续可变参考信号的方法
公开(公告)号：US5838141A
公开(公告)日：1998-11-17
申请号：US856488
申请日：1997-05-14
申请人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian Carl Fritz
发明人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian Carl Fritz
IPC分类号： G01R31/36 , H01M10/42 , H01M10/48 , H02J7/00 , H01M10/44
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3655 , H01M10/4257 , H01M10/48 , H02J7/0003 , H02J7/0004 , H02J7/0011 , H02J7/0068 , G01R31/3675 , Y10S320/10
摘要： A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range. As such, the battery charger is adapted to efficiently utilize the residual capacity of the battery charger system for optimizing charging of the battery packs during all operating conditions of the computer system. Moreover, the use of a PWM signal from the battery pack to control the battery charger enables a single type of battery charger to be utilized for various battery technologies.
摘要翻译：例如，与便携式个人计算机一起使用的电源系统包括智能电池组和充电系统。智能电池组配备有专用微控制器，用于控制电池充电系统的充电水平。特别地，包括电池的电压和温度的电池的状态与表示计算机系统的当前负载需求的信号一起被施加到微控制器。微控制器又以固定频率，可变占空比脉宽调制（PWM）信号的形式提供控制信号，用于控制电池充电系统的充电电平。 PWM信号的占空比用于调节由电池充电器提供的充电电流。特别地，PWM信号的DC值用作参考，以控制调节器的充电电流以提供具有相对宽的电流范围的可变输出充电电流。因此，电池充电器适于在计算机系统的所有操作条件期间有效地利用电池充电器系统的剩余容量来优化电池组的充电。此外，使用来自电池组的PWM信号来控制电池充电器使得能够将单一类型的电池充电器用于各种电池技术。

9. 发明授权

US5629604A Computer power supply system 失效
标题翻译：电脑电源系统
公开(公告)号：US5629604A
公开(公告)日：1997-05-13
申请号：US975879
申请日：1992-11-13
申请人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
发明人： Upal Sengupta , Robert R. Turnbull , Rajesh A. Shah , Brian C. Fritz
IPC分类号： G01R31/36 , H01M10/42 , H01M10/48 , H02J7/00 , H02J7/10
CPC分类号： G01R31/3624 , G01R31/3648 , G01R31/3655 , H01M10/4257 , H01M10/48 , H02J7/0003 , H02J7/0004 , H02J7/0011 , H02J7/0068 , G01R31/3675 , Y10S320/10
摘要： A power supply system, for example, for use with a portable personal computer, includes a smart battery pack and a charging system. The smart battery pack is provided with a dedicated microcontroller for controlling the charging level of the battery charger system. In particular, the status of the battery including the voltage and temperature of the battery is applied to the microcontroller along with a signal representative of the current load demand of the computer system. The micro controller, in turn, provides a control signal in the form of fixed frequency, variable duty cycle pulse width modulated (PWM) signal for controlling the charging level of the battery charger system. The duty cycle of the PWM signal is used to regulate the charging current supplied by the battery charger. In particular, the DC value of the PWM signal is used as a reference to control the charging current of the regulator to provide a variable output charging current with a relatively wide current range. As such, the battery charger is adapted to efficiently utilize the residual capacity of the battery charger system for optimizing charging of the battery packs during all operating conditions of the computer system. Moreover, the use of a PWM signal from the battery pack to control the battery charger enables a single type of battery charger to be utilized for various battery technologies.
摘要翻译：例如，与便携式个人计算机一起使用的电源系统包括智能电池组和充电系统。智能电池组配备有专用微控制器，用于控制电池充电系统的充电水平。特别地，包括电池的电压和温度的电池的状态与表示计算机系统的当前负载需求的信号一起被施加到微控制器。微控制器又以固定频率，可变占空比脉宽调制（PWM）信号的形式提供控制信号，用于控制电池充电系统的充电电平。 PWM信号的占空比用于调节由电池充电器提供的充电电流。特别地，PWM信号的DC值用作参考，以控制调节器的充电电流以提供具有相对宽的电流范围的可变输出充电电流。因此，电池充电器适于在计算机系统的所有操作条件期间有效地利用电池充电器系统的剩余容量来优化电池组的充电。此外，使用来自电池组的PWM信号来控制电池充电器使得能够将单一类型的电池充电器用于各种电池技术。

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