Power amplifiers (PAs) are pivotal elements in modern wireless communication and radar systems, where enhancing output power and efficiency remains a critical challenge. Recent advances in PA design ...

Cell phones have come a long way in terms of battery life, but lets be honest, there's still plenty of room for improvement. The very fact that we talk about using a phone for eight hours as being ...

National Semiconductor Corporation (www.national.com) has added two 200V mono audio power amplifier input stages to its high-fidelity LME audio amplifier family. National Semiconductor Corporation has ...

The Mercury and Solis are "the culmination of almost four decades of Rega electronics engineering experience in solid-state ...

The literature on power amplifiers frequently discusses the importance of power-supply rejection in audio amplifiers, particularly in reference to its possible effects on distortion [4]! I have (I ...

British hi-fi specialist Rega has launched its long-awaited Mercury pre-amplifier and Solis power amplifier, completing the ...

Power amplifiers (PAs) in a wireless base transceiver station are struggling with low efficiency due to limited exploitation of the device’s full operating range. This translates into power and heat ...

However much care is taken, it is very difficult to keep all traces of transformer-induced hum out of the signal circuitry. It is highly irritating to find that despite the cunning use of low-noise ...

For the PDF version of this article, click here. Designing a high-speed, high-current amplifier able to deliver at least 50 V RMS is no simple task. For whatever the amplifier will be driving — a ...

This diagram shows the standard layout of transistors in cell phone power amplifiers, at left, and a new highly efficient amplifier design, at right. The new design could help make possible ...

Sometimes I wish FETs had become practical before bipolar transistors. A FET is a lot more like a tube and amplifies voltages. Bipolar transistors amplify current and that makes them a bit harder to ...