This application provides a
motor load adaptive adjustment method based on analog circuits, relating to the field of
motor control technology, including the following steps: converting the load current in the
motor circuit into a first
voltage signal, and generating a
mode selection signal based on the amplitude and rate of change of the
signal; wherein, when the amplitude of the first
voltage signal exceeds a first threshold and its rate of change exceeds a second threshold, the
mode selection signal indicates a dynamic response mode; otherwise, the
mode selection signal indicates a steady-state adjustment mode; when the indication is a steady-state adjustment mode, the first
voltage signal is introduced into a first path, which includes a first
error amplifier with a first proportional coefficient; when the indication is a dynamic response mode, the first voltage signal is introduced into a second path, which includes a second
error amplifier with a second proportional coefficient greater than the first proportional coefficient; generating and outputting a
motor drive signal according to the adjustment signal output from the selected path.