Amplifiers – Miscellaneous – Amplifier protection means
Reexamination Certificate
2005-10-17
2008-08-26
Pascal, Robert (Department: 2817)
Amplifiers
Miscellaneous
Amplifier protection means
C330S251000
Reexamination Certificate
active
07417503
ABSTRACT:
The present invention introduces methods and circuits to amplify audio signals for driving speakers. An additional feedback circuit is added in an audio amplifier to couple the amplifier stage and output stage of the audio amplifier. The feedback circuit turned off as long as output voltages of the audio amplifier are not near saturation. The feedback circuit is turned on to reduce audible noises if output voltages of the audio amplifier are near saturation.
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Chen Wei
Moyer James C.
Xu Peng
Lu Zhou
Monolithic Power Systems, Inc.
Nguyen Hieu P
Pascal Robert
Perkins Coie LLP
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