The invention relates to the field of power electronics, and discloses a driving circuit which comprises a driving chip, a switch unit, a first resistor and a second resistor, the first output end of the driving chip is connected with the control end of a switch tube, the second output end of the driving chip is connected with the first connecting end of the switch tube, and the second connecting end of the switch tube is connected with one end of the second resistor. The common end, connected with one end of the first resistor, of the other end of the second resistor is connected with the target switch tube, the other end of the first resistor is connected with the first connecting end of the switch tube, and the resistance value of the first resistor is far larger than that of the second resistor. Therefore, when the driving chip receives the first control signal of the DSP chip, the switching unit is controlled to be switched on, and the driving resistor is the second resistor so as to reduce the switching loss of the target switching tube. And when the driving chip receives a second control signal of the DSP chip, the switch unit is controlled to be switched off, the driving resistor is the first resistor to reduce the voltage stress of the target switch tube, and the target switch tube is prevented from being damaged.