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Concept

Class-D amplifier

Related publications (26)

Energy Efficient Low-Noise Neural Recording Amplifier With Enhanced Noise Efficiency Factor

Yusuf Leblebici, Alexandre Schmid, Vahid Majidzadeh Bafar

This paper presents a neural recording amplifier array suitable for large-scale integration with multielectrode arrays in very low-power microelectronic cortical implants. The proposed amplifier is one of the most energy-efficient structures reported to da ...

2011

Design of a 2.4 Ghz BAW-Based CMOS Transmitter

In recent years, bulk acoustic wave resonators (BAW) in combination with RF circuits have shown a big potential in achieving the low-power consumption and miniaturization level required to address wireless sensor nodes (WSN) applications. A lot of work has ...

EPFL2011

High-efficiency dynamic supply CMOS audio power amplifier for low-power applications

Maher Kayal, Marc Pastre

This paper describes the analysis and design of a dynamic supply CMOS audio power amplifier for low-power applications. The dynamic supply technique is used to increase the efficiency of a class AB power amplifier. The polarization of its output stage is a ...

2009

Efficiency enhancement and frequency-tunable capability in linear CMOS RF power amplifiers for wireless applications

This research work deals with the design of linear CMOS RF power amplifiers. Two important aspects are treated: efficiency enhancement and frequency-tunable capability. For this purpose, two different integrated circuits were realized in a 0.11 µm technolo ...

EPFL2009

Design of switching amplifier used in negative impedance dispoal for the active control of transducer's acoustic impedance

Hervé Lissek, Romain Boulandet

We present a concept of "active material" with variable acoustic properties, being constituted of an electroacoustic transducer which acoustic impedance can be changed by an active mean. Among the different ways to obtain variable acoustic properties on an ...

2009

A Low-Noise CMOS Imaging Pixel Circuit with In-Pixel Voltage Amplification

Peter Seitz

A pixel circuit for CMOS active sensor imaging applications is presented. An in-pixel open-loop voltage amplifier achieves efficient bandwidth limitation using low capacitance values, and it allows excellent reduction of downstream readout circuit noise, t ...

2009