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公开(公告)号：US5539298A
公开(公告)日：1996-07-23
申请号：US33869
申请日：1993-03-19
CPC分类号： H02J7/0093 , H02J7/0004
摘要： A battery pack for a computer system including static memory to maintain battery operating parameters and charge information, a real time clock (RTC) for measuring periods of non-use of the battery and a communication means to exchange the battery information with a microcontroller located in the computer system. The static memory, RTC and communication means is preferably in the form of a single RAM/RTC chip. The battery pack also includes circuitry to maintain power to the RAM/RTC from the battery if AC power is not available. The microcontroller detects the presence of the battery and retrieves the present time from the RTC, a timestamp indicating time or removal of the battery and other operating parameters and charge information from the battery pack, and controls the charging functions of the battery accordingly. The microcontroller also updates the charge information of the battery pack while performing other housekeeping functions of a DC-DC converter. The microcontroller further controls a switch located in the charge path of the battery to control fast charging. Trickle charge is simulated by pulsing the switch at a predetermined duty cycle and period. The microcontroller may be placed in standby to conserve energy, while also monitoring the standby switch to pull the computer system out of standby mode if the standby switch is pressed. This allows the keyboard controller 21 to be shut off during standby mode to conserve energy.
摘要翻译： 一种用于计算机系统的电池组，包括用于维持电池工作参数和充电信息的静态存储器，用于测量不使用电池的时间段的实时时钟（RTC）和用于将电池信息与位于 计算机系统。 静态存储器，RTC和通信装置优选地是单个RAM / RTC芯片的形式。 如果电源不可用，电池组还包括电池，以便从电池维持RAM / RTC的电源。 微控制器检测电池的存在并从RTC检索当前时间，指示电池的时间或时间戳，以及其他操作参数和电池组的充电信息，并相应地控制电池的充电功能。 微控制器还在执行DC-DC转换器的其他管理功能的同时更新电池组的电荷信息。 微控制器进一步控制位于电池充电路径中的开关以控制快速充电。 通过以预定的占空比和周期脉冲开关来模拟涓流充电。 如果按下待机开关，微控制器可以被置于待机状态以节省能量，同时还监视备用开关以将计算机系统拉出待机模式。 这允许在待机模式期间关闭键盘控制器21以节省能量。
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2.发明授权
公开(公告)号：US5684382A
公开(公告)日：1997-11-04
申请号：US684686
申请日：1996-07-19
申请人： Brian C. Fritz , William C. Hallowell , Thomas P. Sawyers , Norman D. Stobert , Robert K. Watts , Michael E. Schneider
发明人： Brian C. Fritz , William C. Hallowell , Thomas P. Sawyers , Norman D. Stobert , Robert K. Watts , Michael E. Schneider
CPC分类号： H02J7/0004 , H01M10/44
摘要： A computer system including circuitry for accurately and economically controlling the charge voltage and charge current at the terminals of its rechargeable battery. During a battery recharge, sensor circuitry coupled to the battery provides accurate data to a battery microcontroller regarding the charge voltage and charge current present at the battery terminals. A battery microcontroller relays this information to a multipurpose microcontroller. The battery microcontroller also provides the desired charging voltage and current as determined by the battery pack's charging algorithm. The multipurpose microcontroller uses the battery status information to program an addressable potentiometer. In turn, the potentiometer generates an adjustment signal that controls the output voltage of the computer's AC adapter. Preferably, the AC adapter is capable of being operated in a constant-power mode. Adjustment of the potentiometer allows the output of the AC adapter to be dithered up or down as needed to provide the desired charging voltage and charging current to the battery.
摘要翻译： 一种计算机系统，包括用于精确和经济地控制其可再充电电池的端子处的充电电压和充电电流的电路。 在电池充电期间，耦合到电池的传感器电路向电池微控制器提供关于存在于电池端子处的充电电压和充电电流的精确数据。 电池单片机将该信息中继到多功能微控制器。 电池微控制器还提供由电池组的充电算法确定的期望的充电电压和电流。 多功能微控制器使用电池状态信息来编程可寻址电位计。 电位器又产生一个调节信号，控制计算机的AC适配器的输出电压。 优选地，AC适配器能够以恒定功率模式操作。 调整电位器可以根据需要将交流电适配器的输出向上或向下抖动，从而为电池提供所需的充电电压和充电电流。
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公开(公告)号：US4933832A
公开(公告)日：1990-06-12
申请号：US365099
申请日：1989-06-12
IPC分类号： H02M1/10
CPC分类号： H02M1/10
摘要： An automatic line monitor for use in conjunction with a power supply for electronic components automatically accommodates either of two voltage ranges. Since the power supply may operate in domestic voltage ranges of about 100 volts or in international voltage ranges of about 120, the automatic line monitor senses and automatically switches to a voltage-doubling mode for the domestic range or a non-voltage-doubling mode for the higher international range. A latch may latch the line monitor in a non-voltage doubling mode once the higher voltage range is sensed. A monitor of a preferred embodiment eliminates almost all of the high-power-handling elements of the switch so that almost all of the operative elements of the switch may be incorporated on a single integrated circuit chip.
摘要翻译： 与电子部件的电源一起使用的自动线路监视器自动适应两个电压范围中的任一个。 由于电源可以在约100伏的国内电压范围内或在约120的国际电压范围内工作，所以自动线路监视器感测并自动切换到家用范围的电压倍增模式或非电压倍增模式 国际范围较高。 一旦检测到较高的电压范围，锁存器就可以将线路监视器锁定在非电压倍增模式中。 优选实施例的监视器消除了开关的几乎所有高功率处理元件，使得开关的几乎所有的操作元件可以并入单个集成电路芯片。
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公开(公告)号：US5514946A
公开(公告)日：1996-05-07
申请号：US33821
申请日：1993-03-19
申请人： David S. Lin , Michael E. Schneider
发明人： David S. Lin , Michael E. Schneider
CPC分类号： G06F1/263 , G01R31/3655 , H02J7/0004 , H02J7/0077 , Y10S320/21
摘要： A battery pack for a computer system including static memory to maintain battery operating parameters and charge information, a real time clock (RTC) for measuring periods of non-use of the battery and a communication circuit to exchange the battery information with a microcontroller located in the computer system. The static memory, RTC and communication circuit is preferably in the form of a single RAM/RTC chip. The battery pack also includes circuitry to maintain power to the RAM/RTC from the battery if AC power is not available. The microcontroller detects the presence of the battery and retrieves the present time from the RTC, a timestamp indicating time or removal of the battery and other operating parameters and charge information from the battery pack, and controls the charging functions of the battery accordingly. The microcontroller also updates the charge information of the battery pack while performing other housekeeping functions of a DC--DC converter. The microcontroller further controls a switch located in the charge path of the battery to control fast charging. Trickle charge is simulated by pulsing the switch at a predetermined duty cycle and period. The microcontroller may be placed in standby to conserve energy, while also monitoring the standby switch to pull the computer system out of standby mode if the standby switch is pressed. This allows the keyboard controller to be shut off during standby mode to conserve energy.
摘要翻译： 一种用于计算机系统的电池组，包括用于维持电池工作参数和充电信息的静态存储器，用于测量不使用电池的周期的实时时钟（RTC）和用于与位于 计算机系统。 静态存储器，RTC和通信电路优选地是单个RAM / RTC芯片的形式。 如果电源不可用，电池组还包括电池，以便从电池维持RAM / RTC的电源。 微控制器检测电池的存在并从RTC检索当前时间，指示电池的时间或时间戳，以及其他操作参数和电池组的充电信息，并相应地控制电池的充电功能。 微控制器还在执行DC-DC转换器的其他管理功能的同时更新电池组的电荷信息。 微控制器进一步控制位于电池充电路径中的开关以控制快速充电。 通过以预定的占空比和周期脉冲开关来模拟涓流充电。 如果按下待机开关，微控制器可以被置于待机状态以节省能量，同时还监视备用开关以将计算机系统拉出待机模式。 这样可以在待机模式下关闭键盘控制器以节省能源。
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