18926642. POWER AMPLIFIER CIRCUIT (Murata Manufacturing Co., Ltd.)
POWER AMPLIFIER CIRCUIT
Organization Name
Murata Manufacturing Co., Ltd.
Inventor(s)
POWER AMPLIFIER CIRCUIT
This abstract first appeared for US patent application 18926642 titled 'POWER AMPLIFIER CIRCUIT
Original Abstract Submitted
A power amplifier circuit includes: a first switch circuit that switches conduction and non-conduction between a node between the drive stage amplifier and the power stage amplifier and an output terminal, and a second switch circuit that switches conduction and non-conduction between the power stage amplifier and the output terminal. The power amplifier circuit has a first mode in which the first switch circuit is made conductive and the second switch circuit is made non-conductive, and a second mode in which the first switch circuit is made non-conductive and the second switch circuit is made conductive. The power amplifier circuit makes, when shifting from the first mode to the second mode, the first switch circuit non-conductive after making the second switch circuit conductive, and makes, when shifting from the second mode to the first mode, the second switch circuit non-conductive after making the first switch circuit conductive.