Audio output amplifier
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United States of America Patent
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Dec 1, 2015
Grant Date -
May 2, 2013
app pub date -
Oct 31, 2012
filing date -
Oct 31, 2011
priority date (Note) -
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Abstract
An audio output amplifier includes a plurality of amplification circuits that drive a plurality of electroacoustic conversion devices, respectively. Each of the plurality of amplification circuits includes a current detection resistance that is provided between a path of a current which is supplied to the corresponding electroacoustic conversion device; and a current controller that generates a voltage between both ends of the current detection resistance, the voltage being proportional to a voltage value of an audio input signal supplied to the corresponding amplification circuit.
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