Driving circuit and fan

The utility model is suitable for the field of fans, and in particular relates to a driving circuit and the fan. The driving circuit comprises a fan driving circuit, a temperature detection circuit and a working mode switching circuit, wherein the fan driving circuit is connected with a blower so as to drive the blower to rotate; a first control terminal of the temperature detection circuit is connected with a first controlled terminal of the fan driving circuit, so that an environment temperature is detected to control that whether the fan driving circuit works or not; a second control terminal and a third controlled terminal of the working mode switching circuit are respectively connected with a second controlled terminal of the fan driving circuit and a third control terminal of the temperature detection circuit, so that the working mode switching circuit can switch into an intermittent operation mode or a linear mode according to a switching operation sent from an external environment to control the fan d