Common-mode technique for a digital I/P class D loop
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United States of America Patent
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Aug 19, 2008
Grant Date -
Dec 6, 2007
app pub date -
Jun 6, 2006
filing date -
Jun 6, 2006
priority date (Note) -
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Abstract
A closed loop amplifier adapted to be directly connected to a battery having a battery voltage for powering the amplifier. The amplifier includes an amplifier stage having a node for receiving a control voltage for controlling a common mode voltage of the stage, a digital voltage indicator for generating a digital value corresponding to the battery voltage, and a common mode voltage supply providing the control voltage corresponding to the digital value.
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