Methods and circuits for programmable automatic burst mode...

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07030596

ABSTRACT:
The present invention comprises a user-programmable control circuit for use in a power converter to automatically transition the converter into BURST mode when load current demand is low. The control circuit senses load current demand by monitoring the output current of the converter, and generating a signal representative of the monitored output current. The control circuit may automatically transition the converter into BURST mode when the signal indicative of the average monitored output current decreases below a user-programmable threshold. BURST mode may increase overall converter efficiency by turning OFF a plurality of electronic components, and maintaining the converter's output voltage at a regulated level by energy stored in an output capacitor.

REFERENCES:
patent: 3458798 (1969-07-01), Fang et al.
patent: 3571697 (1971-03-01), Phillips
patent: 3579091 (1971-05-01), Clarke et al.
patent: 3581186 (1971-05-01), Weinberger
patent: 3582758 (1971-06-01), Gunn
patent: 3585491 (1971-06-01), Peterson
patent: 3733540 (1973-05-01), Hawkins
patent: 3772588 (1973-11-01), Kelly et al.
patent: 3784893 (1974-01-01), Rando
patent: 3863128 (1975-01-01), Wilwerding
patent: 3879647 (1975-04-01), Hamilton et al.
patent: 3992638 (1976-11-01), Sauvanet
patent: 4013939 (1977-03-01), Biess et al.
patent: 4035710 (1977-07-01), Joyce
patent: 4071884 (1978-01-01), Maigret
patent: 4160288 (1979-07-01), Stuart et al.
patent: 4326245 (1982-04-01), Saleh
patent: 4395675 (1983-07-01), Toumani
patent: 4428015 (1984-01-01), Nesler
patent: 4462069 (1984-07-01), Becky
patent: 4479174 (1984-10-01), Cates
patent: 4493017 (1985-01-01), Kammiller et al.
patent: 4519024 (1985-05-01), Federico et al.
patent: 4541041 (1985-09-01), Park et al.
patent: 4554499 (1985-11-01), Sherman et al.
patent: 4578630 (1986-03-01), Grosch
patent: 4610521 (1986-09-01), Inoue
patent: 4634956 (1987-01-01), Davis et al.
patent: 4672303 (1987-06-01), Newton
patent: 4672518 (1987-06-01), Murdock
patent: 4674020 (1987-06-01), Hill
patent: 4683529 (1987-07-01), Bucher, II
patent: 4709315 (1987-11-01), Ramos
patent: 4712169 (1987-12-01), Albach
patent: 4716514 (1987-12-01), Patel
patent: 4727308 (1988-02-01), Huljak et al.
patent: 4754385 (1988-06-01), McDade et al.
patent: 4801859 (1989-01-01), Dishner
patent: 4813066 (1989-03-01), Holtz et al.
patent: 4814684 (1989-03-01), McCurdy
patent: 4819122 (1989-04-01), Gontowski, Jr.
patent: 4823070 (1989-04-01), Nelson
patent: 4843532 (1989-06-01), Freedman
patent: 4866587 (1989-09-01), Wadlington
patent: 4870555 (1989-09-01), White
patent: 4884183 (1989-11-01), Sable
patent: 4902957 (1990-02-01), Cassani et al.
patent: 4922404 (1990-05-01), Ludwig et al.
patent: 4928200 (1990-05-01), Redl et al.
patent: 4929882 (1990-05-01), Szepesi
patent: 4931716 (1990-06-01), Jovanovic et al.
patent: 4996638 (1991-02-01), Orr
patent: 5028861 (1991-07-01), Pace et al.
patent: 5034871 (1991-07-01), Okamoto et al.
patent: 5066900 (1991-11-01), Bassett
patent: 5068575 (1991-11-01), Dunsmore et al.
patent: 5081411 (1992-01-01), Walker
patent: 5097196 (1992-03-01), Schoneman
patent: 5128603 (1992-07-01), Wölfel
patent: 5134355 (1992-07-01), Hastings
patent: 5138249 (1992-08-01), Capel
patent: 5144547 (1992-09-01), Masamoto
patent: 5170333 (1992-12-01), Niwayama
patent: 5177676 (1993-01-01), Inam et al.
patent: 5179511 (1993-01-01), Troyk et al.
patent: 5184129 (1993-02-01), Fung et al.
patent: 5193211 (1993-03-01), Nobusawa
patent: 5237606 (1993-08-01), Ziermann
patent: 5309078 (1994-05-01), Cameron
patent: 5396412 (1995-03-01), Barlage
patent: 5408162 (1995-04-01), Williams
patent: 5481178 (1996-01-01), Wilcox et al.
patent: 5534769 (1996-07-01), Ishii
patent: 5548189 (1996-08-01), Williams
patent: 5568044 (1996-10-01), Bittner
patent: 5627460 (1997-05-01), Bazinet et al.
patent: 5705919 (1998-01-01), Wilcox
patent: 5912552 (1999-06-01), Tateishi
patent: 6288524 (2001-09-01), Tsujimoto
patent: 6307356 (2001-10-01), Dwelley
patent: 6385061 (2002-05-01), Turchi et al.
patent: 6456050 (2002-09-01), Agiman
patent: 6580258 (2003-06-01), Wilcox et al.
patent: 6873140 (2005-03-01), Saggini et al.
patent: 0 428 377 (1991-05-01), None
patent: 60-32565 (1985-02-01), None
patent: 60-156269 (1985-08-01), None
patent: 63-307510 (1988-12-01), None
patent: 3-113986 (1991-11-01), None
patent: 4-42771 (1992-02-01), None
patent: 4-49844 (1992-02-01), None
patent: 4-101286 (1992-09-01), None
patent: 4-128086 (1992-11-01), None
Cassani, John C. et al.; “Sophisticated Control IC Enhances 1MHz Current Controlled Regulator Performance”; Proceedings of HFPC, May 1992, pp. 167-173.
Goodenough, Frank; “Synchronous Rectifier UPS PC Battery Life”; Electronic Design, pp. 47-52, Apr. 16, 1992.
Gracie, Paul D.; “Intermittent Converter Saves Power”; EDN, p. 151, Sep. 1, 1989.
Meakin, Mike; “The LM3578 Switching Power Regulator”; Electronic Engineering, Jul. 1986.
National Semiconductor Corporation; “LM1578/LM2578/LM3578 Switching Regulator”; Preliminary Datasheet; 1987.
Texas Instruments; “TPS5120 Dual Output, Two-Phase Synchronous Buck DC/DC Controller”; Datasheet, Aug. 2000 (revised Mar. 2003).
Texas Instruments; TPS5130 “Triple Synchronous Buck Controller With NMOS LDO Controller”; Datasheet, May 2002.
Texas Instruments; “TPS5140 Four-Channel DC/DC Controller for Notebook PC Power”; Datasheet, Dec. 2000 (revised Jan. 2001).
Texas Instruments; TPS43000 “Multi-Topology High-Frequency PWM Controller”, Datasheet; Oct. 2001.
Texas Instruments; “TPS61000, TPS61001, TPS61002, TPS61003, TPS61004, TPS61005, TPS61006, TPS61007 Single- And Dual-Cell Boost Converter With Start-Up Into Full Load”; Datasheet, Mar. 2000 (revised Apr. 2003).
Texas Instruments; TPS61030, TPS61031, TPS61032 “Single-Cell LI or Dual Cell Boost Converter”; Datasheet, Sep. 2002 (revised Feb. 2003).
Texas Instruments; TPS61100, TPS61103, TPS61106, TPS61107 “Dual-Output, Single-Cell Boost Converter”; Datasheet, Jun. 2002 (revised Sep. 2002).
Texas Instruments; TPS61120, TPS61121, TPS61122 “Dual-Output, Single-Cell LI or Dual Cell Boost Converter”; Datasheet, Jun. 2002.
Texas Instruments; TPS61130, TPS61131, TPS61132 “Dual-Output, Single-Cell LI or Dual Cell Sepic Converter”; Datasheet, Jun. 2002.
Texas Instruments; “TPS62000, TPS62001, TOS62003 TPS62004, TPS62005, TPS62006, TPS62007, TPS62008 High-Efficiency Step-Down Low Power DC-DC Converter”; Datasheet, Sep. 2000 (revised Jun. 2002).
Texas Instruments; TPS62050, TPS62051, TPS62052, TPS62054, TPS62056 “800-mA Synchronous Step-Down Converter”; Datasheet, Sep. 2002 (revised May 2003).
Texas Instruments; “Maximum Output Current of the TPS62050”; Application Report, Apr. 2003.
Texas Instruments; “TPS6205×EVM Low-Power, DC-DC EVM for High-Efficiency, Step-Down Converters”; User's Guide, Feb. 2003.
Texas Instruments; TPS62200, TPS62201, TPS62202, TPS62203, TPS62204, TPS62205 “High-Efficiency, SOT23 Step-Down, DC-DC Converter”; Datasheet, Mar. 2002 (revised Oct. 2002).
Texas Instruments; UC28023, UC28025 “Economy High-Speed PWM Controller”; Datasheet, Mar. 2003.
Uchida, Takahito; “Control Circuit for Switching Regulator,” Japanese Inventor Associated Disclosed Technology Publication No. 92-2362, published Feb. 15, 1992 (in Japanese, with translation).
Unitrode; “The UC3874 is . . . Good to the last WATT”; Preliminary Datasheet, Feb. 1996.
Unitrode; “Using Bipolar Synchronous Rectifiers Improves Power Supply Efficiency”; Application Note U-103, 1989-1990 Unitrode Semiconductor Databook and Application Notes, pp. 12-88 to 12-94, Jun. 1985.
Unitrode; UCC1582, UCC2582, UCC3582 “High Efficiency Synchronous, Step Down Controller”; Advanced Information Datasheet, Feb. 1995.
Unitrode; UCC1582, UCC2582, UC3582 “High Efficiency Synchronous, Step Down Controller”; Preliminary Datasheet,

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods and circuits for programmable automatic burst mode... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and circuits for programmable automatic burst mode..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and circuits for programmable automatic burst mode... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3576140

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.