Low-voltage direct-current control circuit and motor

The utility model provides a low-voltage direct-current control circuit and a motor, and the circuit comprises a bridge rectifier circuit which is used for rectifying an inputted first voltage, and obtaining a second voltage which is a forward direct-current voltage; the transformer is connected with the output end of the bridge rectifier circuit and used for reducing the second voltage to generate a third voltage; the voltage detection circuit is connected with the output end of the transformer and used for detecting whether the first voltage is smaller than or equal to a preset voltage or not based on the third voltage, and the preset voltage represents the rated voltage of the low-voltage direct-current motor; and the low-voltage direct-current motor control circuit is connected with the output end of the bridge rectifier circuit and used for controlling the low-voltage direct-current motor to be powered on if the first voltage is smaller than or equal to the preset voltage. According to the utility model,