Variable sampling slope (VSS) and no-deadtime ramp generator (NDRG) techniques for closed-loop interleaving power factor correction (PFC) design with suppression of current mismatch

Author

Chen, Chun-Yen ; Peng, Ruei Hong ; Tsai, Jen-Chieh ; Kang, Yu-Chi ; Ni, Chia-Lung ; Chen, Yi-Ting ; Chen, Ke-Horng ; Wang, Shih-Ming ; Lee, Ming-Wei ; Luo, Hsin-yu

Author_Institution

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

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

298

Lastpage

301

Abstract

The proposed interleaving power factor correction (PFC) can effectively reduce the size of the AC-DC converter for portable electronics. Fully integrated variable sampling slope (VSS) technique can provide precise phase regulation under variable line voltage. Besides, the no-deadtime ramp generator (NDRG) records the previous status to modify the sequent on-time value to achieve current sharing for suppressing the total harmonic distortion (THD) and restraining the input current ripple, EMI filter, and the size of input inductor. Therefore, more power can be provided by the proposed interleaving PFC than that of single-phase PFC. Simultaneously, the drawback of the peak current twice than the average current in the Boundary control mode (BCM) can be greatly reduced. The test circuit fabricated in the TSMC 0.5μm 800V UHV process shows the highly integrated interleaving PFC can deliver high power of 180W with improved phase regulation precision.

Keywords

AC-DC power convertors; electric generators; harmonic distortion; power factor correction; power harmonic filters; AC-DC converter; BCM; EMI filter; NDRG techniques; THD suprression; TSMC; UHV process; VSS; boundary control mode; closed-loop interleaving PFC design; closed-loop interleaving power factor correction design; current mismatch suppression; fully integrated VSS technique; fully integrated variable sampling slope technique; improved phase regulation precision; input current ripple; input inductor; no-deadtime ramp generator techniques; on-time value; portable electronics; power 180 W; precise phase regulation; size 0.5 mum; total harmonic distortion suprression; variable line voltage; variable sampling slope; voltage 800 V; Capacitors; Consumer electronics; Generators; Inductors; Power factor correction; Switches; Voltage measurement; boundary control mode (BCM); interleaving; no-deadtime ramp generator (NDRG); power factor correction (PFC); variable sampling slope (VSS);

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342809

Filename

6342809