Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1997-08-22
1999-05-11
Sterrett, Jeffrey
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323224, 323284, 363 89, G05F1/563
Patent
active
059031387
ABSTRACT:
A two-stage switching regulator having low power modes responsive to load power consumption. A first stage of the regulator is a power factor correction (PFC) stage. A second stage is a pulse-width modulating (PWM) stage. When a load draws a high level of current, switching in both stages is enabled. Under certain conditions, switching in either one or both of the stages is disabled by the duty cycle for the corresponding switch falling to zero. When switching in both stages is enabled, as in a normal mode, switching in the PWM stage is then disabled in response to an error signal falling below a first error threshold. When switching in the PFC stage is enabled and switching in the PWM stage is disabled, as in a first low power mode, switching in the PFC stage is then disabled in response to a feedback voltage rising above a first feedback threshold. When switching in both stages is disabled, as in a second low power mode, switching in the PWM stage is then enabled in response to the error voltage rising above a second error threshold, higher than the first error threshold. When switching in the PFC stage is disabled and switching in the PWM stage is enabled, as in a third low power mode, switching in the PFC stage is enabled in response to the feedback voltage falling below the second feedback threshold. As a result of these low power modes, the switching regulator is highly efficient.
REFERENCES:
patent: 3294981 (1966-12-01), Bose
patent: 3603809 (1971-09-01), Uchiyama
patent: 3660753 (1972-05-01), Judd et al.
patent: 3742330 (1973-06-01), Hodges 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: 4437146 (1984-03-01), Carpenter
patent: 4456872 (1984-06-01), Froeschle
patent: 4529927 (1985-07-01), O'Sullivan et al.
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: 4691159 (1987-09-01), Ahrens et al.
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: 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: 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: 5272613 (1993-12-01), Buthker
patent: 5278490 (1994-01-01), Smedley
patent: 5359281 (1994-10-01), Barrow 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: 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: 5747977 (1998-05-01), Hwang
"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.
"Nonlinear-Carrier Control for High Power Factor Boost Rectifiers," D. Maksimovic, Y. Jang, and R. Erikson, Applied Power Electronics Conf., pp. 635-641, Mar. 1995.
"ML4863 High Efficiency Flyback Controller", Micro Linear Corporation, pp. 1-8, Feb. 1995 (Preliminary).
"ML4863EVAL User's Guide High Efficiency Flyback Controller", Micro Linear Corporation, pp. 1-5, Feb. 1995.
"Off-Line And One-Cell IC Converters Up Efficiency," Frank Goodenough, Electronic Design, pp. 55-56, 58, 60, 62-64, Jun. 27, 1994.
"Designing with hysteretic current-mode control," Gedaly Levin and Kieran O'Malley, Cherry Semiconductor Corp., EDN, pp. 95-96, 98, 100-102, Apr. 28, 1994.
"Analysis of the Flyback Converter Operating in Current-Mode Pulse-Frequency Modulation," Urs Mader and K. Kit Sum, High Frequency Power Conversion, Apr. 17, 1994.
"Step-Up/Step Down Converters Power Small Portable Systems," Bruce D. Moore, EDN, pp. 79-82, 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, Dec. 1993.
"3.3V/5V/Adjustable Output, Step-Up, DC-DC Converters," Maxim Integrated Products, pp. 1-8, Jun. 1993.
"ML4821 Power Factor Controller," Micro Linear Corporation, pp. 6-119 to 6-126, Jun. 1992 (Preliminary).
"ML4821EVAL Average Current PFC Controller Evaluation Kit," Micro Linear Corporation, pp. 6-127, Jul. 1992.
"ML4821 Power Factor Controller," Micro Linear Corporation, pp. 1-12, May 1997.
"Application Note 16--Theory and Application of the ML4821 Average Current Mode PFC Controller," Micro Linear Corporation, pp. 10-102 to 10-119, Jan. 1992.
"Small-Signal High-Frequency Analysis Of The Free-Running Current-Mode-Controlled Converter," Richard Redl, pp. 897-906, IEEE Apr. 1991.
"Low-Voltage-Input, 3V/3.3V/5V/Adjustable-Output, Step-Up DC-DC Converters," Maxim Integrated Products, pp. 4-189 to 4-191 Jul. 1997.
"LT1073 Micropower DC-DC Converter Adjustable and Fixed 5V, 12V" Linear Technology, pp. 4-174 to 4-189, 4-192, Jul. 1997.
"Application Note 30," Linear Technology, p. AN30-42, Jul. 1997.
"System-Engineered Portable Power Supplies Marry Improved Efficiency And Lower Cost," Bruce D. Moore, Maxim Integrated Products Jul. 1997.
"ML4823 High Frequency Power Supply Controller" Micro Linear Corporation, pp. 1-8, Dec. 1994 (Preliminary).
"CD54/74HC 4046A, CD54/74HCT 4046A Technical Data," File No. 1854, RCA, Jul. 1997.
"ML4863 High Efficiency Battery Pack Converter," Micro Linear Corporation, P.1, Jun. 1994 (Preliminary).
"ML4880 Portable PC/PCMCIA Power Controller," Micro Linear Corporation, P.1, Oct. 1995 (Preliminary).
Chee Alland
Hwang Jeffrey H.
Micro Linear Corporation
Sterrett Jeffrey
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