Composite Transducer Protection via Displacement and Temperature Prediction

The patent segments the protection function by introducing a protection module positioned between the power amplifier and the composite transducer. This module independently monitors and controls power delivery to each individual transducer (tweeter, woofer, etc.) within the composite structure, enabling effective protection despite the integrated design. The segmentation allows each transducer to be protected according to its specific parameters while maintaining the space-saving composite structure.

The protection module acts as an intermediary component between the single power amplifier and the composite transducer. It receives the amplified signal and selectively applies protection to individual transducers based on their displacement and temperature parameters. This intermediary function resolves the contradiction by enabling granular protection control without requiring separate power amplifiers for each transducer.

The patent implements feedback mechanisms where displacement sensors (such as capacitive or inductive sensors) and temperature sensors continuously monitor transducer parameters and feed this information back to the protection module. The protection module compares real-time parameters against preset thresholds and automatically adjusts or cuts power delivery when limits are exceeded. This feedback-based approach achieves reliable protection through relatively simple control logic rather than complex system architecture.

The protection system enables transducers to monitor their own operational parameters (displacement and temperature) through integrated sensors, and the protection module uses this self-reported information to make protection decisions. This self-service approach reduces the need for external complex monitoring systems while maintaining effective protection.