本文介绍一种晶体管水位自动控制器,它既能用于水塔水池的高位监测,又能实现低水位控制,防止水泵抽空等等。 1.电路结构 该装置的具体电路见图1和图2,它由电机控制及水位检测,电子开关部分组成。图1是电机控制部分,图2是水位检测及电子开关部分。在看电原理图时,应将图1和图2结合起来分析。图2中晶体管T1、电阻R1、R2及 This article describes a transistor water level automatic controller, which can be used for water tower high monitoring, but also to achieve low water level control, to prevent pump pumping and so on. 1. Circuit Structure The specific circuit shown in Figure 1 and Figure 2, which consists of motor control and water level detection, electronic switch part. Figure 1 is the motor control section, Figure 2 is the water level detection and electronic switching section. While reading the schematic, you should combine Figure 1 and Figure 2 to analyze. Figure 2 transistor T1, resistors R1, R2 and