Perturbation on-time (POT) control and inhibit time control (ITC) in suppression of THD of power factor correction (PFC) design

Author

Tsai, Jen-Chieh ; Chen, Chi-Lin ; Chen, Yi-Ting ; Ni, Chia-Lung ; Chen, Chun-Yen ; Chen, Ke-Horng ; Chen, Chih-Jen ; Pan, Heng-Lin

Author_Institution

Inst. of Electr. Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2011

fDate

19-21 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

The paper presented the perturbation on-time (POT) control technique to suppress the total harmonic distortion (THD) to improve the performance of the power factor correction (PFC) in the AC-DC converter. Simultaneously, it can improve the efficiency through the proposed inhibit time control (ITC) mechanism at low AC input voltage. The test circuit fabricated in TSMC 800V UHV process can show the highly-integrated PFC controller. Experimental results demonstrate low THD of 8%, which results in high PF of 99%. Besides, high efficiency of 95% can be ensured at the output power of 90W.

Keywords

AC-DC power convertors; circuit testing; controllers; harmonic distortion; perturbation theory; power factor correction; AC input voltage; AC-DC converter; THD suppression; TSMC 800V UHV process; highly-integrated PFC controller; inhibit time control; inhibit time control mechanism; perturbation on-time control technique; power 90 W; power factor correction design; test circuit; total harmonic distortion; voltage 800 V; Control systems; Electromagnetic interference; Inductors; Power factor correction; Switching frequency; Timing; Voltage control; and inhibit time control (ITC); perturbation on-time control (POT); power factor correction (PFC); total harmonic distortion (THD);

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference (CICC), 2011 IEEE

Conference_Location

San Jose, CA

ISSN

0886-5930

Print_ISBN

978-1-4577-0222-8

Type

conf

DOI

10.1109/CICC.2011.6055339

Filename

6055339