TY - GEN
T1 - Quiescent current control for low distortion linear power amplifier
AU - Lai, Shuk-Fun
AU - Tam, Wing-Shan
AU - Kok, Chi-Wah
AU - Ng, Lai-Ting
AU - Wong, Hei
PY - 2016/1/5
Y1 - 2016/1/5
N2 - This paper proposes and analyzes a quiescent current control scheme on linear power amplifier, which allows the amplifier to achieve low distortion amplification that is free from zero-crossing distortion as a Class A amplifier, while achieving energy efficiency comparable to a Class B amplifier. The proposed circuit offers great design flexibility by allowing individual adjustment in the quiescent currents flowing in the push/pull output transistors individually. Moreover, the push/pull transistors in the proposed circuit can be implemented in identical NMOS transistors, thus releases the stringent transconductance matching requirement at the output stage. The circuit performance is analytically analyzed and validated by SPICE simulation.
AB - This paper proposes and analyzes a quiescent current control scheme on linear power amplifier, which allows the amplifier to achieve low distortion amplification that is free from zero-crossing distortion as a Class A amplifier, while achieving energy efficiency comparable to a Class B amplifier. The proposed circuit offers great design flexibility by allowing individual adjustment in the quiescent currents flowing in the push/pull output transistors individually. Moreover, the push/pull transistors in the proposed circuit can be implemented in identical NMOS transistors, thus releases the stringent transconductance matching requirement at the output stage. The circuit performance is analytically analyzed and validated by SPICE simulation.
UR - https://www.scopus.com/pages/publications/84962158408
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84962158408&origin=recordpage
U2 - 10.1109/TENCON.2015.7373062
DO - 10.1109/TENCON.2015.7373062
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781479986415
VL - 2016-January
BT - IEEE Region 10 Annual International Conference, Proceedings/TENCON
PB - IEEE
T2 - 35th IEEE Region 10 Conference (TENCON 2015)
Y2 - 1 November 2015 through 4 November 2015
ER -