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    Charge and discharge control circuit having low voltage detecting means for preventing charging of an abnormal cell
    1.
    发明授权
    Charge and discharge control circuit having low voltage detecting means for preventing charging of an abnormal cell 失效
    具有低电压检测装置的充放电控制电路，用于防止异常电池的充电

    公开(公告)号：US5959436A

    公开(公告)日：1999-09-28

    申请号：US18073

    申请日：1998-02-03

    申请人： Takayuki Takashina ,  Shinichi Yoshida ,  Hiroshi Mukainakano

    发明人： Takayuki Takashina ,  Shinichi Yoshida ,  Hiroshi Mukainakano

    IPC分类号： H02J7/10 ,  G01R19/165 ,  H01M10/44 ,  H02H7/18 ,  H02J20060101 ,  H02J7/00 ,  H01M10/46

    CPC分类号： G01R19/16542

    摘要： A charge/discharge control circuit cuts off a current path to stop charging of an abnormal secondary cell when the voltage of the secondary cell is less than the threshold voltage of a MOS transistor. The charge/discharge control circuit includes a charge and discharge control circuit for monitoring the voltage of a secondary cell and outputting a signal for controlling the charging and discharging of the secondary cell, a switch circuit for receiving the output signal of the charge and discharge control circuit to stop the charging of the secondary cell in an overcharged or overdischarged state, and a low voltage detecting circuit for receiving the output signal of the charge and discharge control circuit, detecting whether the voltage of the secondary cell is below a predetermined voltage, which is below the overdischarge voltage and which is equal to the threshold voltage of a MOS transistor, and for controlling the switch circuit to prevent charging of the secondary cell if the voltage thereof is below the predetermined voltage.

    摘要翻译： 当二次电池的电压小于MOS晶体管的阈值电压时，充电/放电控制电路切断电流路径以停止异常二次电池的充电。 充放电控制电路包括用于监视二次电池的电压并输出用于控制二次电池的充电和放电的信号的充放电控制电路，用于接收充放电控制的输出信号的开关电路 以及用于接收充放电控制电路的输出信号的低电压检测电路，检测二次电池的电压是否低于预定的电压，其中， 低于过放电电压，并且其等于MOS晶体管的阈值电压，并且用于控制开关电路，以防止其电压低于预定电压时二次电池的充电。

    Charge/discharge control circuit and chargeable electric power source apparatus
    2.
    发明授权
    Charge/discharge control circuit and chargeable electric power source apparatus 失效
    充放电控制电路和充电电源装置

    公开(公告)号：US5742148A

    公开(公告)日：1998-04-21

    申请号：US154463

    申请日：1993-11-17

    申请人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    发明人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    IPC分类号： G01R31/36 ,  H01M10/44 ,  H02H7/18 ,  H02J7/00 ,  H02J7/02 ,  H02J7/10 ,  H02J7/14 ,  H01M10/46

    CPC分类号： H02J7/1438 ,  H02J7/0011 ,  H02J7/0018 ,  H02J7/0026 ,  H02J7/0031 ,  H02J7/0034 ,  H02J7/0063 ,  H02J7/008 ,  H02J7/0086 ,  H02J2007/004

    摘要： A chargeable power supply which has a charge/discharge control circuit is provided in which the service life of a secondary cell is prolonged. A voltage dividing circuit, an overcharge voltage detection circuit, an overdischarge detection circuit and a control circuit are connected in parallel to the secondary cell. The control circuit receives signals indicating the condition of the secondary cell from the overcharge/overdischarge voltage detection circuits and outputs a signal for controlling a switch circuit for disconnecting the secondary cell from external equipment, or to stop a charging operation by an external power source. The control circuit also controls a switching element provided in series with the voltage dividing circuit and reduces a current which flows through the dividing circuit. A current limiting means is provided to limit the current consumption of the charge/discharge control circuit. In one embodiment, a the current limiting device is a switching element provided in series with the voltage dividing circuit. In another embodiment, the current limiting device is an error amplifier with a latching function provided in an overcharge detecting circuit.

    摘要翻译： 提供具有充放电控制电路的充电电源，其中延长了二次电池的使用寿命。 并联连接有分压电路，过充电电压检测电路，过放电检测电路和控制电路。 控制电路从过充电/过放电电压检测电路接收表示二次电池状态的信号，并输出用于控制用于将二次电池从外部设备断开的开关电路的信号，或者停止外部电源的充电操作。 控制电路还控制与分压电路串联设置的开关元件，并且减少流过分频电路的电流。 提供限流装置来限制充放电控制电路的电流消耗。 在一个实施例中，限流装置是与分压电路串联设置的开关元件。 在另一实施例中，限流装置是在过充电检测电路中提供锁存功能的误差放大器。

    Charge/discharge control circuit and chargeable electric power source apparatus
    4.
    发明授权
    Charge/discharge control circuit and chargeable electric power source apparatus 有权
    充放电控制电路和充电电源装置

    公开(公告)号：US6097177A

    公开(公告)日：2000-08-01

    申请号：US196699

    申请日：1998-11-20

    申请人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    发明人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    IPC分类号： H02J7/00 ,  H02J7/14 ,  H01M10/46

    CPC分类号： H02J7/0026 ,  H02J7/0031 ,  H02J7/1438 ,  H02J2007/004 ,  H02J7/0034

    摘要： A charge/discharge control circuit for controlling the charging and discharging of a secondary cell has a voltage dividing circuit for dividing an output voltage of the secondary cell, which may comprise plural cells, an overcharge detection circuit for detecting an overcharge state of the secondary cell, an overdischarge detection circuit for detecting an overdischarge state of the secondary cell, and a control circuit for receiving and processing an output signal of the overcharge detecting circuit and the overdischarge detecting circuit and controlling the switch. In a preferred embodiment, an overcharge reference voltage source used for the overcharge voltage detection circuit is used also as an overdischarge reference voltage source for the overdischarge voltage detection circuit.

    摘要翻译： 用于控制二次电池的充电和放电的充电/放电控制电路具有分压电路，用于对可能包括多个电池的二次电池的输出电压进行分压，用于检测二次电池的过充电状态的过充电检测电路 用于检测二次电池的过放电状态的过放电检测电路，以及用于接收和处理过充电检测电路和过放电检测电路的输出信号并控制开关的控制电路。 在优选实施例中，用于过充电电压检测电路的过充电参考电压源也用作过放电电压检测电路的过放电参考电压源。

    Charge/discharge control circuit and chargeable electric power source apparatus
    6.
    发明授权
    Charge/discharge control circuit and chargeable electric power source apparatus 有权
    充放电控制电路和充电电源装置

    公开(公告)号：US06242890B1

    公开(公告)日：2001-06-05

    申请号：US09553873

    申请日：2000-04-20

    申请人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    发明人： Minoru Sudo ,  Takayuki Takashina ,  Yoshikazu Kojima ,  Sadashi Shimoda ,  Hiroshi Mukainakano

    IPC分类号： H02J700

    CPC分类号： H02J7/0063

    摘要： A charge/discharge control circuit is provided for an electric power source apparatus in which a service life is prolonged. A voltage dividing circuit, an overcharge voltage detection circuit, an overdischarge voltage detection circuit and a control circuit are connected in parallel to a secondary cell which is an electric power source, wherein the control circuit detects a condition of the secondary cell from the overcharge/overdischarge voltage detection circuits and outputs a signal Vs for controlling a power supply to an external equipment and a charge by an external power source and controls a switching element provided in series with the voltage dividing circuit and reduces a current which flows through the voltage dividing circuit.

    摘要翻译： 为延长使用寿命的电源装置提供充放电控制电路。 分压电路，过充电电压检测电路，过放电电压检测电路和控制电路并联连接到作为电源的二次电池，其中控制电路从过充电/过电压检测电路检测二次电池的状态， 过放电电压检测电路，输出用于控制外部设备的电力供给的信号Vs和外部电源的电荷，并控制与分压电路串联设置的开关元件，并减少流过分压电路的电流 。