| 摘要 |
<p>A water-level detection control circuit suitable for a discharge pump, and an operating method therefor. The water-level detection control circuit comprises a power supply unit, a detection unit (30) and a water pump unit (40), wherein the power supply unit is used for supplying voltages to the detection unit (30) and the water pump unit (40); the detection unit (30) comprises a sensor portion and a comparison portion, wherein the sensor portion is used for conducting periodic detection on a water-level position in the discharge pump, and the comparison portion compares a sensing value corresponding to the water-level position with a preset first threshold value in the detection unit (30), and generates a drive signal according to a comparison result; and the water pump unit (40) is used for receiving the drive signal from the detection unit (30), so that the discharge pump operates for a preset time period. The water-level detection control circuit suitable for a discharge pump can resist the fluctuation of a liquid level, also has the characteristics of simple and easy integration and high reliability, and can be installed in a discharge pump to form an integrated structure with the discharge pump.</p> |
