PROTECTION CIRCUIT FOR POWER AMPLIFIER
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United States of America Patent
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N/A
Issued Date -
Feb 16, 2017
app pub date -
Aug 12, 2015
filing date -
Aug 12, 2015
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A radio frequency device includes a radio frequency (RF) power amplifier (PA) circuit including a driver stage configured to amplify an input signal to generate an output signal and a power stage configured to amplify the output signal, a first bias circuit configured to supply a first bias current to the driver stage, a second bias circuit configured to supply a second bias current to the power stage, and a protection circuit configured to limit a current flowing in the RF PA. The protection circuit is coupled between the first bias circuit and the second bias circuit.
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