Haptic feedback system

A haptic feedback system, configured to be disposed on a device, and comprising:

• a fixed portion fixedly connected to the device;
• a movable portion movable relative to the fixed portion;
• a driving assembly configured to drive the movable portion to move relative to the fixed portion for generating feedback to the device;
• and
• a first connecting assembly, wherein the movable portion is movably connected to the fixed portion via the first connecting assembly, so that the movable portion has a first vibration mode relative to the fixed portion,
• wherein the driving assembly receives a first signal having a first frequency, and the first frequency is the same as a frequency of the first vibration mode,
• wherein the movable portion further comprises a mode adjustment assembly for making the movable portion enter a second vibration mode relative to the fixed portion, the frequency of the first vibration mode is different from a frequency of the second vibration mode, and the mode adjustment assembly comprises:
• a frame connecting the first connecting assembly;
• an adjustment element movable relative to the frame, wherein the adjustment element is movable relative to the fixed portion;
• and
• a second connecting assembly, wherein the adjustment element is movably connected to the frame via the second connecting assembly,
• wherein mass of the adjustment element is different from mass of the frame.