TY - GEN
T1 - Modeling and design of high-efficiency power amplifiers fed by limited power sources
AU - Jaimes, Arturo Fajardo
AU - De Sousa, Fernando Rangel
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/27
Y1 - 2016/10/27
N2 - 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.
AB - 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.
KW - Class-A power amplifier
KW - class-D power amplifier
KW - efficiency
KW - power amplifier modeling
KW - wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=85000454231&partnerID=8YFLogxK
U2 - 10.1109/SBCCI.2016.7724042
DO - 10.1109/SBCCI.2016.7724042
M3 - Conference contribution
AN - SCOPUS:85000454231
T3 - Proceedings - SBCCI 2016: 29th Symposium on Integrated Circuits and Systems Design: Chip on the Mountains
BT - Proceedings - SBCCI 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th Symposium on Integrated Circuits and Systems Design, SBCCI 2016
Y2 - 29 August 2016 through 3 September 2016
ER -