Publication

Design and comparison of class-C and class-D power amplifiers for remotely powered systems

Catherine Dehollain, Enver Gürhan Kilinç, Kerim Türe, Franco Maloberti
2013
Conference Papers

Abstract

This paper presents the effect of coupling between the coils on the power amplifier efficiency and comparisons between the class-C and class-D performance for different coupling conditions. In remotely powered systems, the coupling of the coils can influence the reflected load impedance seen by the power amplifier. The appropriate power amplifier needs to be chosen to deliver the power efficiently for different load conditions. The study also discusses the advantages and drawbacks of designing the class-C and class-D amplifiers.

Official source

https://infoscience.epfl.ch/entities/publication/cbd2512c-42a6-416e-b22a-7f765671f1eb

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Catherine Dehollain, Enver Gürhan Kilinç, Kerim Türe, Franco Maloberti
2013
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cbd2512c-42a6-416e-b22a-7f765671f1eb

About this result

Related concepts (26)

Amplifier

An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. The amount of amplification provided by an amplifier is measured by its gain: the ratio of output voltage, current, or power to input.

Bass amplifier

A bass amplifier (also abbreviated to bass amp) is a musical instrument electronic device that uses electrical power to make lower-pitched instruments such as the bass guitar or double bass loud enough to be heard by the performers and audience. Bass amps typically consist of a preamplifier, tone controls, a power amplifier and one or more loudspeakers ("drivers") in a cabinet. While bass amps share many features with the guitar amplifiers used for electric guitar, they are distinct from other types of amplification systems, due to the particular challenges associated with low-frequency sound reproduction.

Audio power amplifier

An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals, such as the signal from a radio receiver or an electric guitar pickup, to a level that is high enough for driving loudspeakers or headphones. Audio power amplifiers are found in all manner of sound systems including sound reinforcement, public address, home audio systems and musical instrument amplifiers like guitar amplifiers. It is the final electronic stage in a typical audio playback chain before the signal is sent to the loudspeakers.

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