Sony’s Playstation 5 console and its DualSense controller are not brand new, but The trigger of the controller has a really interesting design This is worth studying. The analog flip-flop on the PS5 controller is often described as having a “variable resistance”, but it turns out that this is not all.The trigger can not only change the resistance when pressed, but also push back In different ways and different forces. It works very cleverly.
The feedback of the trigger assembly is handled by the lever, gear and worm gear on the motor. Under normal circumstances, the trigger will not be disturbed at all, and it works in the same way as a normal analog trigger. But when the motor moves the lever into place, the trigger movement must now overcome the additional interference caused by mechanical disadvantages. By allowing the motor to actively apply additional force against the movement of the trigger, you can surprisingly increase the resistance you feel.
This is not all. The motor can also actively move the lever in (or out) position, which means that pulling the trigger can not only feel smooth, mushy or stiff in different places, but also actively push back. This feedback can be introduced (or removed) at any point within the range of trigger motion. Therefore, at any time, the trigger pull will make people feel that it has a sharp breakpoint, a rough stroke, a hard stop, an active recoil, or any combination of these.
This is a bit difficult to describe, but you can better understand all its work in practice by watching some of the content This disassembly [TronicsFix] (The video prompts about 9:17 to start disassembling the trigger.) It is also embedded below, so please take a look.
Applying a small amount of force in the right position can produce great results, but the force feedback project does not have to be subtle. By installing a lot of solenoids on the mouse, the status quo can be changed at any time.