Dynamic closed-loop audio amplifier system

摘要: A closed-loop audio amplifier (108) that dynamically amplifiers an input signal (101) to drive speaker (104). The senses the output (110), temperature, power supply voltages, and any excessive voltages or currents on lines. Based these sensory inputs, a CPU (118) in may alter characteristics enhance sound quality produced by prevent damage either and/or More specifically, tune digital potentiometer attenuates prior amplification correct compression temperature concerns. Also, disconnect from (104) if detects DC voltage current line, which would indicate fault with (108). also includes DSP for performing processing functions including crossover, equalization, time delay, compression, limiting, gating.