This experimental (3) transistor class A audio power amplifier delivers 25mW into an 8Ω load, or 50mW into a 4Ω load using only a 1.5V power source. At such low voltages, there are many issues to ...

The circuit was constructed around the functionality of a Class A amplifier to create a headphone circuit. BC308 – an epitaxial planar PNP transistor used for general purpose and low noise amplifier ...

For years, the two-dimensional material, graphene, has shown promise in making electronics smaller and more efficient. Now scientists have designed a graphene-based transistor that works with ...

Michael Kanellos is editor at large at CNET News.com, where he covers hardware, research and development, start-ups and the tech industry overseas. As the search for a silicon transistor replacement ...

A University of Surrey discovery that solves a problem that has hampered source-gated transistors (SGT) could bring low-cost, flexible displays that require very little energy one step closer. Image ...

A new way of designing chips could solve one of the biggest problems facing wearable computers such as Google Glass and the Samsung smart watch—their batteries generally have to be recharged every day ...

Shrinking chips are hitting a wall. Traditional transistors, the workhorses of modern electronics, are struggling to switch faster without guzzling power. A rival design, the tunnel field-effect ...

Analog circuitry is usually a small part of a large SoC, but it does not scale in the same way as digital circuitry under Moore’s Law. The power consumed by analog is becoming an increasing concern, ...

What are GaN HEMTs and why are they important? How GaN devices can handle kilowatt power conversion. Gallium-nitride (GaN) high electron mobility transistors (HEMTs) are a form of field-effect ...