Paper Info
Title
Modeling and design of high-efficiency power amplifiers fed by limited power sources.
Abstract
Recently the non-electromagnetic energy sources and wireless power transfer (WPT) techniques have been used to obtain electromagnetic (EM) energy sources for providing energy autonomy to electric devices when the energy in the environment is insufficient. Typically, this type of systems are composed by a harvester, a DC/RF converter, a WPT interface and a load. Further, in the power stage of the DC/RF converter the energy flow is processed using a power amplifier (PA). This paper proposes a design methodology for a generic PA fed by a limited power source. This methodology extracts the maximum available power of the EPS with the maximum PA efficiency using impedance matching and a novel PA modeling based on its impedance ports (DC and AC). Moreover, models of class-A PA and class-D PA were developed as examples. Furthermore, a Class-A PA was designed using its impedance ports model and the proposed methodology as a proof of concept. The results reflect that the designed PA extracts the maximum available power of the source with its maximum efficiency.
Year
DOI
Venue
2016
10.5555/3145862.3145868
SBCCI '16: 29th Symposium on Integrated Circuits and Systems Design Belo Horizonte Brazil August, 2016
Keywords
Field
DocType
Class-A power amplifier, class-D power amplifier, efficiency, power amplifier modeling, wireless power transfer
Computer science,Impedance matching,Power factor,Electronic engineering,Linear amplifier,Power-added efficiency,Energy source,Power optimizer,RF power amplifier,Electrical engineering,Amplifier
Conference
ISBN
Citations 
PageRank 
978-1-5090-2736-1
1
0.37
References 
Authors
6
2
Name
Order
Citations
PageRank
Arturo Fajardo Jaimes111.72
Fernando Rangel de Sousa24312.99