Proceedings Article10.1109/APEC.2006.1620550
Nonunity active PFC methods for filter size optimization
Y. Chen,Jonathan W. Kimball,Philip T. Krein +2 more
- 19 Mar 2006
- pp 268-272
TL;DR: In this paper, a simple waveform shape can reduce filter component size by about 40% in active PFC converters at the same level of complexity as in conventional PFC designs while yielding power factor as high as 0.9.
read more
Abstract: Active power factor correction seeks to obtain unity power factor and sinusoidal line currents. Optimized nonsinusoidal line currents reduce filter capacitor requirements with a nonunity target power factor. Implementation methods are presented that permit reduced power factor to be traded off against filter size in a nearly optimum manner. A simple waveform shape can reduce filter component size by about 40% in active PFC converters at the same level of complexity as in conventional PFC designs while yielding power factor as high as 0.9. Two approximate methods to generate appropriate shapes are presented. They offer direct practical implementation of nonunity power factor solutions and have been verified experimentally. Such solutions meet power quality standards and deliver acceptable power factor with reduced converter cost.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Reducing Storage Capacitor of a DCM Boost PFC Converter
TL;DR: In this article, a variable duty cycle control is proposed to inject the required third harmonic into the input current to meet the requirement of IEC 61000-3-2 Class D or Energy Star.
69
Adaptive Constant Power Control of MHz GaN-Based AC/DC Converters for Low Power Applications
TL;DR: An adaptive constant power control is proposed, based on the developed models, to improve the light-load efficiency and power factor and a discussion of the possibility of extending the proposed operation method to higher power applications.
27
A universal‐input high‐power‐factor power supply without electrolytic capacitor for multiple lighting LED lamps
TL;DR: A SEPIC-derived power factor correction topology is proposed as the first stage for driving multiple lighting LED lamps and the twin-bus buck converter is introduced and used as the second-stage current regulator with Pulse Width Modulation (PWM) dimming function.
16
Adaptive constant power control and power loss analysis of a MHz GaN-based AC/DC converter for low power applications
Chengcheng Yao,Yue Zhang,Xuan Zhang,He Li,Huanyu Chen,Jin Wang +5 more
- 26 Mar 2017
TL;DR: In this article, the authors presented design considerations and power loss analysis of MHz AC/DC converters in partial constant power operation, and an adaptive constant power control was also proposed to improve the light load efliciency.
14
Optimal Switching Frequency Variation Range Control for Critical Conduction Mode Boost Power Factor Correction Converter
TL;DR: The optimal harmonics amounts for the lowest switching frequency variation range without and with a limited PF are both figured out and a lower output voltage ripple is obtained.
12
References
Single phase power factor correction: a survey
TL;DR: A review of the most interesting solutions for single phase and low power applications is carried out in this article, where the major advantages and disadvantages are highlighted and the field of application is found.
732
New Power Factor Correction AC-DC Converter With Reduced Storage Capacitor Voltage
TL;DR: In this paper, the novel single-stage SII-B-2D PFC converter is presented and this topology provides input current harmonics under EN61000-3-2 Class D limits and advantageous component count.
129
Helpful hints to select a power-factor-correction solution for low- and medium-power single-phase power supplies
TL;DR: This work presents a review of power-factor-correction (PFC) circuits for low- and medium-power single-phase power supplies belonging to IEC 61000-3-2 Class A and Class D with an input power level below 4 kW.
55
A theoretical examination of the circuit requirements of power factor correction
Chi K. Tse,M.H.L. Chow +1 more
- 17 May 1998
TL;DR: In this paper, the requirements of circuits containing linear inductors, capacitors and ideal switches for the synthesis of power factor correction (PFC) converters are examined in terms of the circuit topology and the switching sequence.
28
Current quality and performance tradeoffs under active power factor correction
Philip T. Krein
- 15 Aug 2004
TL;DR: In this article, the tradeoff between power factor and filter size has been investigated and it is shown that a tradeoff can be made between the two, at the expense of large filters to handle double frequency power.
19