Alternating current amplifier with digitally controlled frequenc

Amplification device having an adjustable bandwidth

Amplifier arrangement and amplifying method

Amplifier circuit, integrated circuit and radio frequency...

Amplifier circuit, integrated circuit and radio frequency...

Amplifier drive controller

Amplifier having an adjust resistor network

Amplifier with a gain proportional to power source voltage

Amplifier with capacitor selection

Amplifier with controllable transmission factor and switchable c

Amplifier with controlled gain

Amplifier with modulated resistor gain control

Amplifier with variable gain

Amplifiers

Amplifying circuit capable of limiting amplitude of output...

Apparatus and method for employing gain dependent biasing to...

Audio amplifier system with discrete digital frequency...

Audio power amplifier and a pre-amplifier thereof

Auto gain controller

Automatic gain control circuit and method