U1B is a Schmitt trigger that compares the battery voltage to the same stable reference of the other section, but for another purpose: it controls the load switch Q3.
U 1 B的是一个施密特触发器，电池电压比较稳定的其他部分相同的参考，但另一个目的：它控制的负荷开关q3。
The threshold detector is similar to a Schmitt Trigger in that it is a latch circuit with a large dead zone.
阈值检测器就是一种回差范围较大的锁存电路，与施密特触发器相似。
The A1210-A1214 Hall-effect latches include the following on a single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor.
在A1210 - A 1214霍尔效应锁存包括一个单一的硅芯片上以下内容：稳压器，霍尔电压发生器，小信号放大器，施密特触发器和NMOS输出晶体管。
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