Interleaved zero current switching in a power factor correction

Details Interleaved zero current switching in a power factor correction Interleaved zero current switching in a power factor correction

1999-01-14

2000-07-18

Nguyen, Matthew

Electricity: power supply or regulation systems

In shunt with source or load

Using choke and switch across source

363 89, G05F 1656, H02M 704

Patent

active

060912332

ABSTRACT:
A method and apparatus for interleaving switching of multiple transistor switches in a power factor correction (PFC) boost converter and for timing the switching to occur when a current through a freewheeling diode corresponding to each switch is at a minimum level. The converter draws input current from an alternating current power supply for forming a regulated output voltage. A controller senses an input current and an output voltage across an output capacitor for controlling switching to regulate the output voltage and to ensure that the input current is substantially in phase with an input voltage. Current through a first inductor associated with a first switch is allowed to fall substantially to zero upon discharging the first inductor prior to re-charging the first inductor. Charging of a second inductor associated with a second switch, however, is initiated prior to completion of discharging the first inductor. Similarly, current through the second inductor is allowed to fall substantially to zero prior to re-charging the second inductor. An advantage is that from the perspective of the power supply, the converter operates in continuous conduction mode, while from the perspective of each of the switches, the converter operates in discontinuous conduction mode. The invention reduces power dissipated in the switches, increasing reliability and allowing higher frequency operation. In accordance with another aspect of the invention, a synchronizing signal is generated by the PFC converter for synchronizing operation of a second converter, such as a pulse-width modulation converter, with the PFC converter.

REFERENCES:
patent: 3294981 (1966-12-01), Bose
patent: 3539902 (1970-11-01), Hickling
patent: 3603809 (1971-09-01), Uchiyama
patent: 3660753 (1972-05-01), Judd et al.
patent: 3742330 (1973-06-01), Hodges et al.
patent: 3832643 (1974-08-01), Van Heyningen et al.
patent: 3883756 (1975-05-01), Dragon
patent: 4035710 (1977-07-01), Joyce
patent: 4293904 (1981-10-01), Brooks et al.
patent: 4311954 (1982-01-01), Capel
patent: 4392103 (1983-07-01), O'Sullivan et al.
patent: 4407588 (1983-10-01), Arichi et al.
patent: 4422138 (1983-12-01), Kornrumpf
patent: 4437146 (1984-03-01), Carpenter
patent: 4454558 (1984-06-01), Huddart
patent: 4456872 (1984-06-01), Froeschle
patent: 4529927 (1985-07-01), O'Sullivan et al.
patent: 4628438 (1986-12-01), Montague
patent: 4651231 (1987-03-01), Douglas, Jr.
patent: 4661896 (1987-04-01), Kobayashi et al.
patent: 4672303 (1987-06-01), Newton
patent: 4672518 (1987-06-01), Murdock
patent: 4674020 (1987-06-01), Hill
patent: 4677366 (1987-06-01), Wilkinson et al.
patent: 4685043 (1987-08-01), Mehnert
patent: 4691159 (1987-09-01), Ahrens et al.
patent: 4695935 (1987-09-01), Oen et al.
patent: 4717833 (1988-01-01), Small
patent: 4731574 (1988-03-01), Melbert
patent: 4736151 (1988-04-01), Dishner
patent: 4761725 (1988-08-01), Henze
patent: 4837495 (1989-06-01), Zansky
patent: 4841220 (1989-06-01), Tabisz et al.
patent: 4845420 (1989-07-01), Oshizawa et al.
patent: 4886952 (1989-12-01), Horiuchi
patent: 4920309 (1990-04-01), Szepesi
patent: 4929882 (1990-05-01), Szepesi
patent: 4940929 (1990-07-01), Williams
patent: 4941080 (1990-07-01), Sieborger
patent: 4947309 (1990-08-01), Jonsson
patent: 4950974 (1990-08-01), Pagano
patent: 4975823 (1990-12-01), Rilly et al.
patent: 5028861 (1991-07-01), Pace et al.
patent: 5034873 (1991-07-01), Feldtkeller
patent: 5070439 (1991-12-01), Remson
patent: 5132606 (1992-07-01), Herbert
patent: 5138249 (1992-08-01), Capel
patent: 5146399 (1992-09-01), Gucyski
patent: 5157269 (1992-10-01), Jordan et al.
patent: 5161097 (1992-11-01), Ikeda
patent: 5272613 (1993-12-01), Buthker
patent: 5278490 (1994-01-01), Smedley
patent: 5287261 (1994-02-01), Ehsani
patent: 5349284 (1994-09-01), Whittle
patent: 5359281 (1994-10-01), Barrow et al.
patent: 5397976 (1995-03-01), Madden et al.
patent: 5412308 (1995-05-01), Brown
patent: 5414341 (1995-05-01), Brown
patent: 5434767 (1995-07-01), Batarseh et al.
patent: 5436550 (1995-07-01), Arakawa
patent: 5440473 (1995-08-01), Ishii et al.
patent: 5450000 (1995-09-01), Olsen
patent: 5457621 (1995-10-01), Munday et al.
patent: 5457622 (1995-10-01), Arakawa
patent: 5461302 (1995-10-01), Garcia et al.
patent: 5477132 (1995-12-01), Canter et al.
patent: 5479089 (1995-12-01), Lee
patent: 5481178 (1996-01-01), Wilcox et al.
patent: 5485361 (1996-01-01), Sokal
patent: 5491445 (1996-02-01), Moller et al.
patent: 5502370 (1996-03-01), Hall et al.
patent: 5532577 (1996-07-01), Doluca
patent: 5552695 (1996-09-01), Schwartz
patent: 5565761 (1996-10-01), Hwang
patent: 5568041 (1996-10-01), Hesterman
patent: 5570276 (1996-10-01), Cuk et al.
patent: 5592071 (1997-01-01), Brown
patent: 5592128 (1997-01-01), Hwang
patent: 5610502 (1997-03-01), Tallant, II et al.
patent: 5617306 (1997-04-01), Lai et al.
patent: 5627460 (1997-05-01), Bazinet et al.
patent: 5663874 (1997-09-01), Mader et al.
patent: 5691592 (1997-11-01), Gunderson et al.
patent: 5691889 (1997-11-01), Bazinet et al.
patent: 5747977 (1998-05-01), Hwang
patent: 5771164 (1998-06-01), Murai et al.
patent: 5847548 (1998-12-01), He et al.
patent: 5861734 (1999-01-01), Fasullo et al.
"ML 4824 Power Factor Correction and PWM Controller Combo," Micro Linear Corporation, May 1997.
"Load Share Controller, UC1902, UC2902, UC3902: Preliminary," Unitrode Integrated Circuits, Merrimack, NH, Oct. 1996.
"Nonlinear-Carrier Control for High Power Factor Rectifiers Based on Flyback, Cuk, or Sepic Converters," R. Zane and D. Maksimovic, Applied Power Electronics Conf., pp. 814-820, Mar. 1996.
"ML4880 Portable PC/PCMCIA Power Controller (Preliminary)," Micro Linear Corporation, Oct. 1995.
"ML4863 High Efficiency Flyback Controller," Micro Linear Corporation, Feb. 1995.
"ML4863EVAL User's Guide High Efficiency Flyback Controller," Micro Linear Corporation, Feb. 1995.
"Nonlinear-Carrier Control for High Power Factor Boost Rectifiers," D. Maksimovic, Y. Jang, R. Erikson, Applied Power Electronics Conf., pp. 635-641, Sep. 1995.
"ML4823 High Frequency Power Supply Controller," Micro Linear Corporation, Dec. 1994.
"Load Share Controller, UC1907, UC2907, UC3907," Unitrode Integrated Circuits, Merrimack, NH, Nov. 1994.
"Off-Line and One-Cell IC Converters Up Efficiency," Frank Goodenough, Electronic Design, pp. 55-56, 58, 60, 62-64, Jun. 27, 1994.
"ML4863 High Efficiency Battery Pack Converter (Preliminary)," Micro Linear Corporation, Jun. 1994.
"Designing with hysteretic current-mode control," Gedaly Levin and Kieran O'Malley, Cherry Semi-Conductor Corp., EDN, pp. 95-96, 98, 100-102, Apr. 28, 1994.
"Step-Up/Step Down Converters Power Small Portable Systems," Bruce D. Moore, EDN, pp. 79-84, Feb. 3, 1994.
"ML4861 Low Voltage Boost Regulator," Micro Linear Corporation, Jun. 1993.
"11. Variable Frequency Converters," K. Kit Sum, pp. 96-97, 134-135, May 1993.
"3.3V/5V/Adjustable Output, Step-Up, DC-DC Converters," Maxim Integrated Products, pp. 1-8, Aug. 1993.
"ML4821EVAL Average Current PFC Controller Evaluation Kit," Micro Linear Corporation, pp. 6-127, Jul. 1992.
"ML4821 Power Factor Controller," Micro Linear Corporation, Jun. 1992.
"Application Note 16--Theory and Application of the ML4821 Average Current Mode PFC Controller," Micro Linear Corporation, Jan. 1992.
"Small-Signal High-Frequency Analysis of the Free-Running Current-Mode-Controlled Converter," Richard Redl, pp. 897-906, IEEE, Aug. 1991.

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