DOHERTY AMPLIFIER CIRCUIT
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Sep 10, 2024
filing date -
Sep 10, 2024
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Abstract
A first bias circuit, a second bias circuit, a first differential amplifier, a second differential amplifier, and an inverting amplifier are included. The first bias circuit has: a first bias output terminal from which first bias current or a voltage is output to a carrier amplifier; and a first monitoring terminal from which a first monitoring signal is output. The second bias circuit has: a second bias output terminal from which second bias current or a voltage is output to a peaking amplifier; and a second monitoring terminal from which a second monitoring signal is output. The first differential amplifier outputs the first bias control signal. The second differential amplifier outputs an amplified signal. The inverting amplifier outputs the second bias control signal resulting from inverting amplification of the amplified signal.
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