Abstract: A circuit assembly for a submersible pump and a submersible pump using the same is disclosed. The circuit assembly comprises: a signal generating circuit, which is configured to access a DC signal, and invert the DC signal into an AC signal having a frequency range of 40 Hz-200 Hz and then output the AC signal; and a driving circuit, which has an input terminal connected to the signal generating circuit and an output terminal connected to a stator coil of the submersible pump, and is configured to receive the AC signal and drive the stator coil to work. The submersible pump can directly access DC power supply, which is very convenient for the user; and further, a water shortage detecting circuit can be preferably configured to trigger the signal generating circuit to control the driving circuit stopping driving the stator coil when the liquid level is too low.

Abstract: A circuit assembly for a submersible pump and a submersible pump using the same are disclosed. The circuit assembly comprises: a control and signal generating circuit, which is configured to access a DC signal, and invert the DC signal into an AC signal and then output the AC signal; and a driving circuit, which is connected to the control and signal generating circuit, and is configured to receive the AC signal, and output AC power with corresponding frequency and voltage according to the AC signal to a stator coil of the submersible pump. The submersible pump can directly access DC power supply, which is very convenient for the user; and a water shortage protection circuit can be preferably configured to suspend the control and signal generating circuit when the liquid level is too low, so that a protection when the water level is too low is realized.