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    • 93. 发明授权
    • Battery unit having means for preventing over-discharge
    • 电池单元具有用于防止过放电的装置
    • US06885168B2
    • 2005-04-26
    • US10206066
    • 2002-07-29
    • Masafumi OkumuraShigeo Tanaka
    • Masafumi OkumuraShigeo Tanaka
    • H01M10/42H01M10/48H02H7/18H02J7/00
    • H01M10/425H02H7/18H02J7/0026H02J2007/0037H02J2007/004
    • A protection method for preventing battery cells from over-discharging and being overcharged, a control circuit, and a battery unit are provided. In the protection method, when a set signal “1” is supplied to a set terminal, a flip-flop outputs “1”. The gate of a discharge control FET then becomes “1”, so that the discharge control FET is OFF regardless of a discharge control signal supplied from a voltage monitor circuit. When a reset signal “1” is supplied to a reset terminal, the flip-flop outputs “0”. The discharge control FET is then switched on and off in accordance with the output of a discharge control circuit of the voltage monitor circuit. In this manner, battery cells connected to an electronic device do not over-discharge, even when they are left unused for a long period of time. Thus, the battery unit can be prevented from deteriorating and shortening the life thereof.
    • 提供一种用于防止电池过度放电和过充电的保护方法,控制电路和电池单元。 在保护方法中,当设定信号“1”被提供给设定端子时,触发器输出“1”。 然后,放电控制FET的栅极变为“1”,使得放电控制FET不管从电压监视电路提供的放电控制信号如何都是OFF的。 当复位信号“1”被提供给复位端时,触发器输出“0”。 然后,根据电压监视电路的放电控制电路的输出,对放电控制FET进行接通和断开。 以这种方式,连接到电子设备的电池单元即使长时间不使用也不会过度放电。 因此,能够防止电池单元劣化,缩短寿命。