Phantom powered amplifier

Phanton-powered active direct box

Power amplifier

Power amplifier

Power amplifier

Power amplifier

Power amplifier

Power amplifier

Power amplifier (PA) efficiency with low current DC to DC...

Power amplifier and power amplification method

Power amplifier apparatus

Power amplifier arrangement and method for data signal interface

Power amplifier circuit

Power amplifier circuit

Power amplifier circuit

Power amplifier control using a switching power supply

Power amplifier multiple stage control for polar modulation...

Power amplifier with close-loop adaptive voltage supply

Power amplifier with multiple power supplies

Power amplifier with power supply switching