Class-G amplifier and audio system employing the amplifier
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United States of America Patent
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Jan 12, 2016
Grant Date -
Apr 3, 2014
app pub date -
Sep 4, 2013
filing date -
Sep 28, 2012
priority date (Note) -
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Abstract
A Class-G amplifier including a first and second driving transistor configured to receive an input voltage; a first supplying terminal connected to the first driving transistor to supply a first supplying voltage. The amplifier also comprises: a second supplying terminal connected to the second driving transistor to supply a second supplying voltage in absolute value higher than said first voltage; a first power transistor connected to the first driving transistor to form a first Sziklai pair structured to be activated by a first input voltage lower in absolute value than the first supplying voltage; a second power transistor connected to the second driving transistor to form a second Sziklai pair structured to be activated by an input signal comprised between the first supplying voltage and the second supplying voltage.
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