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17 条记录 (耗时 0.026 秒)

    Portable jump-starting battery pack with charge monitoring system
    11.
    发明授权
    Portable jump-starting battery pack with charge monitoring system 失效
    便携式启动电池组，带充电监控系统

    公开(公告)号：US06344733B1

    公开(公告)日：2002-02-05

    申请号：US09663694

    申请日：2000-09-22

    申请人： Matthew M. Crass ,  Robert W. Iverson

    发明人： Matthew M. Crass ,  Robert W. Iverson

    IPC分类号： H02J714

    CPC分类号： H02J7/0086 ,  H02J7/0047

    摘要： A battery pack includes a lead-acid battery and a charger port and an electronic switch connected between the two, the switch being controlled by a microcontroller which is connected to each of the battery and the charger port for separately monitoring the voltages thereat. The microcontroller operates under the control of a program which includes routines for comparing the battery voltage to the charger port voltage, for preventing closure of the switch unless the charger port voltage is at least a predetermined level and at least the battery voltage, for adjusting the duty cycle of the switch in accordance with the magnitude of the difference between the charger port voltage and the battery voltage, for detecting a bad battery by measuring the length of time required to increase the battery voltage from first to second predetermined levels, for reducing the switch duty cycle to a trickle charge level in the event of bad battery detection, and for disabling the bad battery detection routine in the event that a cigarette lighter adapter is coupled to the charger port. Audible and visible indicators may be provided to signal charging condition.

    摘要翻译： 电池组包括铅酸电池和充电器端口以及连接在两者之间的电子开关，开关由连接到每个电池和充电器端口的微控制器控制，用于分别监视其上的电压。 微控制器在程序的控制下操作，该程序包括用于将电池电压与充电器端口电压进行比较的例程，用于防止开关闭合，除非充电器端口电压至少为预定电平，并且至少为了调整电池电压 根据充电器端口电压和电池电压之间的差异的大小，开关的占空比，用于通过测量将电池电压从第一至第二预定电平增加所需的时间长度来检测坏电池，以减少 在电池检测不良的情况下将开关占空比转换成涓流充电电平，并且在点烟器适配器连接到充电器端口的情况下禁用坏电池检测程序。 可以提供可视和可见的指示符来指示充电状态。

    Impact tool battery pack with acoustically-triggered timed impact shutoff
    14.
    发明授权
    Impact tool battery pack with acoustically-triggered timed impact shutoff 有权
    具有声学触发定时冲击关断的冲击工具电池组

    公开(公告)号：US06508313B1

    公开(公告)日：2003-01-21

    申请号：US09910539

    申请日：2001-07-23

    申请人： Steven C. Carney ,  Matthew M. Crass

    发明人： Steven C. Carney ,  Matthew M. Crass

    IPC分类号： E21B700

    CPC分类号： B25B23/1405 ,  B25B23/1475

    摘要： An electrically powered impact tool has a removably mountable battery pack which includes an acoustic detection circuit for detecting sounds generated by the impact mechanism in use and, in response to such detection, starts an adjustable time period, at the end of which a relay is actuated for disconnecting the battery of the battery pack from the tool motor for a predetermined time period. This serves as a torque-limiting mechanism where the tool is a torque-applying tool. The time period is adjustable by a dial on the battery pack housing and the control circuitry may be selectively powered through a switch on the battery pack housing.

    摘要翻译： 电动冲击工具具有可移除安装的电池组，其包括用于检测由使用中的冲击机构产生的声音的声学检测电路，并且响应于这种检测开始可调节的时间段，在其结束时继电器被致动 用于在预定时间段内将电池组的电池从工具电机断开。 这用作扭矩限制机构，其中工具是扭矩施加工具。 该时间段可通过电池组外壳上的拨盘进行调节，并且控制电路可以通过电池组壳体上的开关选择性地供电。

    Charge maintenance system for lead-acid battery
    15.
    发明授权
    Charge maintenance system for lead-acid battery 失效
    铅酸蓄电池充电维护系统

    公开(公告)号：US06441584B1

    公开(公告)日：2002-08-27

    申请号：US09729253

    申请日：2000-12-01

    申请人： Matthew M. Crass

    发明人： Matthew M. Crass

    IPC分类号： H02J700

    CPC分类号： H02J7/0022 ,  H02J7/0075 ,  H02J7/008

    摘要： A charge maintenance system for a lead-acid battery includes a charger, a voltage monitor, and a load/switch series combination, all connectable in parallel across the battery terminals, the switch and the charger being under control of a microprocessor. The battery is initially loaded for a predetermined time period, or until the battery voltage drops below an absolute minimum reference level during a loading cycle, and the system stores the lowest battery terminal voltage occurring during the loading cycle. After a predetermined delay following the loading cycle the charger is activated to charge the battery until it reaches a maximum charge level. Then, if the stored lowest battery voltage level is below a predetermined reference level, the loading/charging routine is repeated, otherwise it is not and the battery is considered good. If the stored lowest battery voltage level remains below the threshold for ten consecutive loading cycles, the system indicates that the battery failed the test but could be subject to retest. If the stored lowest battery voltage level is below an absolute minimum reference voltage level after three consecutive loading cycles, the system indicates that the battery is bad and should be discarded.

    摘要翻译： 铅酸蓄电池的充电维护系统包括充电器，电压监视器和负载/开关串联组合，所有组合都可并联连接在电池端子上，开关和充电器处于微处理器的控制之下。 电池最初装载预定的时间段，或者直到电池电压在加载循环期间降到绝对最小参考电平以下，并且系统存储在加载循环期间发生的最低电池端电压。 在加载周期之后的预定延迟之后，充电器被激活以对电池充电直到其达到最大充电水平。 然后，如果存储的最低电池电压电平低于预定的参考电平，则重复加载/充电程序，否则不是并且电池被认为是好的。 如果存储的最低电池电压电平在十个连续加载周期内保持低于阈值，则系统表示电池未通过测试，但可能需要重新测试。 如果存储的最低电池电压电平在三次连续加载循环后低于绝对最小参考电压电平，则系统表示电池不良，应丢弃。

    Battery pack and over-voltage alarm therefor
    16.
    发明授权
    Battery pack and over-voltage alarm therefor 失效
    电池组和过电压报警器

    公开(公告)号：US06297615B1

    公开(公告)日：2001-10-02

    申请号：US09578094

    申请日：2000-05-25

    申请人： Matthew M. Crass

    发明人： Matthew M. Crass

    IPC分类号： H02J700

    CPC分类号： H01M6/5033 ,  H01M6/5044 ,  H01M10/06 ,  H01M10/4257 ,  H01M10/48 ,  H02J7/0047 ,  Y10S320/19

    摘要： A battery pack has a pair of input/output terminals adapted to be connected across a source of charging voltage, and a lead-acid battery connected across the input/output terminals. A Zener diode is connected in series with a resistance across the input/output terminals, the resistance forming part of a trigger circuit for triggering an alarm signal to actuate a visible and/or audible annunciator when the charging voltage exceeds a threshold level. In one embodiment the trigger circuit is an IC comparator having one input connected to a reference voltage drive from a voltage divider connected across the input/output terminals, and the other input connected to the trigger voltage across the resistance in series with the Zener. In another embodiment the trigger circuit includes a pair of transistors, one being turned ON by the trigger voltage and in turn ON the second transistor to produce the output signal and provide a feedback to latch on the first transistor.

    摘要翻译： 电池组具有适于连接在充电电压源上的一对输入/输出端子和连接在输入/输出端子上的铅酸电池。 齐纳二极管与输入/输出端子之间的电阻串联连接，电阻形成触发电路的一部分，用于在充电电压超过阈值电平时触发报警信号来启动可见和/或听觉指示器。 在一个实施例中，触发电路是一个IC比较器，其具有一个输入端，连接到跨过输入/输出端子连接的分压器的参考电压驱动器，另一个输入端连接到与齐纳二极管串联的电阻上的触发电压。 在另一个实施例中，触发电路包括一对晶体管，一个晶体管由一个触发电压导通，另一个导通第二晶体管，以产生输出信号并提供反馈来锁存在第一晶体管上。

    Frequency and instantaneous voltage level meter
    17.
    发明授权
    Frequency and instantaneous voltage level meter 失效
    频率和瞬时电压电平表

    公开(公告)号：US5412312A

    公开(公告)日：1995-05-02

    申请号：US955348

    申请日：1992-10-01

    申请人： Matthew M. Crass ,  Robert D. Braun

    发明人： Matthew M. Crass ,  Robert D. Braun

    IPC分类号： G01R13/40 ,  G01R15/12 ,  G01R19/00 ,  G01R29/00

    CPC分类号： G01R13/406 ,  G01R15/12

    摘要： A volt/frequency meter includes LED arrays which provide bar-graph style meter displays of the instantaneous voltage and the frequency of a variable electric analog signal. Each LED in the voltage array corresponds to a predetermined voltage range and each LED in the frequency array corresponds to a predetermined frequency range. The meter is switchable among three different voltage scales and three different frequency scales. A separate LED flashes momentarily in response to the input signal crossing a user-determined limit set point which is adjusted through a knob on the front panel. The limit set point controls the operation of the frequency display such that the displayed frequency is the rate at which the analog signal crosses the limit set point.

    摘要翻译： 电压/频率计包括LED阵列，其提供瞬时电压和可变电模拟信号的频率的条形图式仪表显示。 电压阵列中的每个LED对应于预定的电压范围，并且频率阵列中的每个LED对应于预定的频率范围。 该仪表可在三种不同的电压标度和三种不同的频率范围之间切换。 单独的LED会响应于输入信号越过通过前面板上的旋钮调节的用户确定的极限设定点而短暂闪烁。 极限设定点控制频率显示的操作，使得显示的频率是模拟信号越过极限设定点的速率。