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ADetailed Explanation of the Working Principle of Force-Adjustable Triggers

Jun 30, 2025

Force-adjustable triggers primarily regulate trigger resistance and feedback force through internal mechanical structures and electronic components, tailored to gaming scenarios or user settings. This provides users with diverse operational feels and immersive experiences, with the working principle involving the following key components:

1. Position Detection

  • Hall Effect Sensing: Hall elements are commonly used to detect the position of the trigger button. A magnetic component is embedded in the trigger, and as the trigger rotates, the relative position between the magnet and the Hall element changes. The Hall element generates corresponding electrical signals based on the Hall effect, determining the trigger’s rotation angle and position. This serves as the basis for subsequent force feedback adjustment.

2. Force Feedback Adjustment Unit

  • High-Torque Motor & Precision Gear Set: Composed of a high-torque motor and precision gear mechanism, the control unit acts based on the trigger position feedback from the detection unit and pre-set gaming scenarios/user configurations. For example, when the trigger is pressed to a specific angle during a charged attack scenario, the control unit commands the motor to operate. The gear set transmits power, making the force feedback unit abut against the trigger at the corresponding position.

3. Resistance Generation Mechanism

  • Motor Stall/Low-Speed Operation: When the force feedback unit abuts the trigger, the motor continues rotating but encounters resistance, entering a stall or low-speed operation state to generate resistance. As users press the trigger further, they must overcome this resistance to feel varying force feedback. By adjusting parameters like motor speed and rotation angle, different resistance levels can be achieved—simulating operational feels in real-world scenarios, such as recoil in shooting games or throttle pedal resistance in racing games.

4. Transmission Structure

  • Four-Bar Linkage: A common transmission structure (e.g., four-bar linkage) connects the output end of the force feedback unit to the trigger. The damping generated by the force feedback unit is transmitted to the trigger via this structure, allowing users to feel reaction forces from the damping during trigger rotation. These forces can be adjusted according to gaming scenarios and user settings.

5. Control Unit

  • Central Processing: As the "brain" of the force-adjustable trigger, the control unit receives signals from the position detection unit and regulates the force feedback unit’s actions (e.g., motor speed and direction) based on internal programs and algorithms. This achieves the force feedback required for different gaming scenarios, ensuring users experience operation feels that match in-game content and enhancing immersion.

Core Technical Logic Summary

The working principle of force-adjustable triggers embodies a precise closed-loop system:
  1. Position Detection → 2. Signal Processing by Control Unit → 3. Force Feedback Unit Activation → 4. Resistance Transmission via Mechanical Structure → 5. User Tactile Feedback
    This mechanism not only enables dynamic adjustment of trigger resistance based on game states (e.g., charging, striking, or accelerating) but also achieves fine-grained force feedback control through the integration of mechatronics—marking a key technology for enhancing immersive gaming experiences.