Vibration generating apparatus, operating method thereof, and apparatus including vibration generating apparatus

The system performs preliminary temperature prediction based on current driving signal values before the temperature actually affects the piezoelectric element's capacitance. This advance prediction allows the controller to pre-adjust the driving signal characteristics, compensating for upcoming temperature-induced changes before they occur, thus maintaining signal reliability without adding complex real-time sensing hardware.

The system establishes a feedback loop where the current value of the driving signal is continuously monitored and used to predict future temperature conditions. This predicted temperature information feeds back to the controller, which then adjusts subsequent driving signals accordingly. This closed-loop feedback mechanism ensures driving signal characteristics remain stable despite temperature variations.

The system replaces physical temperature sensors and mechanical thermal measurement devices with an electronic prediction mechanism. Instead of using hardware to directly measure temperature, the controller uses mathematical prediction based on electrical parameters (current driving signal values) to estimate temperature effects. This substitution maintains control system simplicity while achieving temperature compensation.

The system changes the approach from direct temperature measurement to indirect parameter-based prediction. By monitoring changes in driving signal current values and using these electrical parameters to infer temperature conditions, the system avoids adding temperature sensing hardware. The controller adjusts driving signal parameters (amplitude, frequency, or waveform) based on these inferred temperature conditions, maintaining signal stability through parameter adaptation rather than physical measurement.