caa a22 4500 606205667 CHVBK 20210128101008.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00034-014-9877-3 doi (NATIONALLICENCE)springer-10.1007/s00034-014-9877-3 A Pseudo-Natural Sampling Algorithm for Low-Cost Low-Distortion Asymmetric Double-Edge PWM Modulators [Elektronische Daten] [Zeqi Yu, Yangyu Fan, Longfei Shi, Guoyun Lv] In this paper, a pseudo-natural sampling algorithm for correcting the harmonic distortion produced by asymmetric double-edge uniform-sampling pulse-width modulation is proposed. The algorithm uses the decomposability of the asymmetric double-edge pulse-width modulation process and the Lagrange numerical differentiation method for calculating the pseudo-natural sampling points to obtain a harmonic distortion correction effect. The computational complexity of the algorithm is low because it requires only three shifts, six additions and three multiplications to calculate each of the pseudo-natural sampling points. A complete experimental system based on a single field programmable gate array was built to verify the effectiveness of the proposed algorithm and to compare it with other reported kindred algorithms. The results obtained show that the proposed algorithm has lower hardware requirements and better harmonic distortion correction than other related algorithms. Springer Science+Business Media New York, 2014 Pulse-width modulation (PWM) nationallicence Pseudo-natural sampling nationallicence Asymmetric double-edge nationallicence Field programmable gate array (FPGA) nationallicence Harmonic distortion nationallicence Yu Zeqi School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut Fan Yangyu School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut Shi Longfei School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut Lv Guoyun School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/3(2015-03-01), 831-849 0278-081X 34:3<831 2015 34 34 https://doi.org/10.1007/s00034-014-9877-3 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-014-9877-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Zeqi School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut NATIONALLICENCE 700 1- Fan Yangyu School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut NATIONALLICENCE 700 1- Shi Longfei School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut NATIONALLICENCE 700 1- Lv Guoyun School of Electronics and Information, Northwestern Polytechnical University, 710129, Xi'an, Shaanxi, China aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/3(2015-03-01), 831-849 0278-081X 34:3<831 2015 34 34