ANTI-POP DEVICE FOR AUDIO AMPLIFIERS

摘要

An anti-pop device for audio amplifier is suitable for outputting signals to a speaker to produce sound waves. The audio amplifier comprises a pre-processing unit, a filter and a voltage level detection unit electrically connected to the pre-processing unit. The voltage level detection unit detects the supply voltage. As the supply voltage is lower than a predetermined value, the voltage level detection unit outputs a signal to the pre-processing unit for lowering the audio volume so that a pop noise caused by circuit malfunction resulted from excessively-low supply voltage can be prevented.