SYSTEMS AND METHODS FOR PROTECTION OF AUDIO AMPLIFIER CIRCUITS

摘要

Systems and methods for providing protection from failure events in a digital audio amplification system. One embodiment of the invention comprises a system having a digital amplifier controller, an amplifier output stage (160) coupled to the controller and configured to receive audio signals from the controller, one or more sensors (180) coupled to the output stage (160) and one or more low-pass filters coupled to receive sensor signals from the one or more sensors, (180). The low-pass filter is configured to filter the sensor signals and to provide the filtered sensor signals to the controller, which provides a programmable response to the filtered sensor signals. The response may range from not taking any action, to limiting the amplification of audio signals, to shutting down the system.