Liquid level monitoring circuit

The utility model provides a liquid level monitoring circuit. The liquid level monitoring circuit comprises a sensing circuit used for monitoring the height of the liquid level, a power conversion circuit used for providing power and a main control circuit used for controlling the sensing circuit. The power conversion circuit is respectively connected with the sensing circuit and the main control circuit, and the sensing circuit and the main control circuit are connected in an IIC communication mode; the liquid level monitoring circuit is simple in structure and high in response speed, interference in the monitoring process is reduced, and the liquid level monitoring accuracy is improved. 本实用新型提出了一种液位监测电路。该液位监测电路包括用于监测液位高度的传感电路、用于提供电源的电源转换电路和用于控制传感电路的主控电路；电源转换电路与传感电路和主控电路分别连接，传感电路和主控电路通过IIC通信方式连接；该液位监测电路结构简单，响应速度快，并且降低了监测过程中的干扰，提高了对液位监测的精确度。