电压比较器（Vo ltage Com p arator）是一种常见的模拟集成电路，。电压比较器通常有两个输入端和一个输出端，参见图1.1。

电压比较器的功能是比较两个输入电压的大小：当同相输入端电压高于反相输入端时输出为

IGH；当同相输入端电压低于反相输入端时输出为LOW。单片机教程网：http://www.ipbb.cn电压比较器的主要用途：波形的

产生和变换、模拟电路到数字电路的接口，等等。 -The voltage comparator (Vo ltage Com p arator) is a common analog integrated circuits, can be seen as close to " infinity"　is the magnification operational amplifier. Voltage comparator generally has two input terminals and an output terminal, see Figure 1.1. The function of the voltage comparator is to compare the two input voltage of the size: When the output is higher than the inverting input terminal of the noninverting input terminal voltage IGH @　output is LOW when the noninverting input voltage is lower than the inverting input terminal. Microcontroller tutorial network: http://www.ipbb.cn voltage comparator main purposes: waveform generation and transformation, analog circuitry to a digital circuit interface, and so on.