... 标准电池standard cell 电压参比电池voltage reference battery 韦斯顿标准电池Weston standard cell ...
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Voltage reference apparatus, voltameter, battery voltage detection apparatus and wireless communication device.
电压参考装置，伏特表，电池电压检测装置和无线通信设备。
The schematics includes four parts: bandgap reference voltage and reference current, 2.7V and 1.8V regulator, over-load protection , Low Battery Detection (LBD) .
其原理包括参考电压电流电路，2.7V及1.8V电压调整电路，过流保护电路以及低压检测电路四个部分。
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。
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