Power amplifier circuit for multi-frequencies and...

Power amplifier circuit for providing constant bias current...

Power amplifier circuit having a bias signal inputted into...

Power amplifier circuit with a stand-by state

Power amplifier circuit with temperature compensating level shif

Power amplifier circuit, control method for power amplifier...

Power amplifier circuitry

Power amplifier circuitry

Power amplifier circuitry and method

Power amplifier circuitry and method using an inductance...

Power amplifier circuits

Power amplifier clipping circuit for minimizing output...

Power amplifier control using a switching power supply

Power amplifier core

Power amplifier device

Power amplifier device

Power amplifier device and method thereof

Power amplifier device having a plurality of power amplifier uni

Power amplifier devices

Power amplifier driver system for wireless handset