Drive circuit and electric device

The utility model discloses a drive circuit including a control chip, a drive module and a switch tube, wherein the switch tube has a first end, a second end and a control end used for controlling the connection between the first end and the second end; the control end is connected with a signal output terminal of the drive module; the control chip is used for outputting pulse width modulation signals to the drive module and the pulse width modulation signals passes through the signal output terminal of the drive module and are output to the switch tube so as to drive the switch tube; and the drive module is used for detecting the magnitude of output voltage of the signal output terminal and regulating pulse width modulation signal outputting state of the signal output terminal. The utility model also discloses an electric device. The utility model improves the working stability of the switch tube.