Distortion limiter and automatic power control for drivers
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United States of America Patent
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Sep 1, 2015
Grant Date -
Mar 20, 2014
app pub date -
Sep 18, 2012
filing date -
Sep 18, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Systems and methods are disclosed to provide automatic power control for a driver circuit. Embodiments disclosed herein enable a driver circuit to automatically decrease the gain of amplified input signals when output power exceeds a threshold. Further, embodiments disclosed herein enable a driver circuit to automatically increase the gain of amplified input signals when battery supply voltage drops to avoid unwanted output signal distortion. By using reference signals for battery power and amplified signal input, the amplifiers of the driver circuit can be automatically adjusted until an equilibrium is reached.
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