High-PF and ultra-low-THD power factor correction controller by sinusoidal-wave synthesis and optimized THD control

Chih Wei Chang, Chia Lung Ni, Jen Chieh Tsai, Yi Ting Chen, Chun Yen Chen, Ke-Horng Chen, Long Der Chen, Cheng Chen Yang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The proposed sinusoidal-wave synthesis (SWS) and the optimized THD control (OTC) improve power factor (PF) and total harmonic distortion (THD) over a wide line voltage range. The SWS detects the input line root-mean-square (rms) voltage to generate the digital equivalent code to the OTC for optimizing the THD by tuning the on-time value. Besides, the SWS and the OTC provide a feedforward path to reduce the ripple of the feedback voltage for further improving the THD. Therefore, the PFC converter can keep high PF and low THD over a wide line voltage. Experimental results demonstrate the PF is higher than 0.99 and the THD is 1.7% at VAC of 90-110V by the test circuit fabricated in TSMC 800V UHV process.

Original languageEnglish
Title of host publication2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Pages917-920
Number of pages4
DOIs
StatePublished - 9 Sep 2013
Event2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
Duration: 19 May 201323 May 2013

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
CountryChina
CityBeijing
Period19/05/1323/05/13

Keywords

  • power factor
  • sinusoidal-wave synthesis
  • total harmonic distortion

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