Digital control system and method for switched mode power...

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

C363S065000

Reexamination Certificate

active

06933709

ABSTRACT:
A power supply comprises at least one power switch adapted to convey power between input and output terminals of the power supply, and a digital controller adapted to control operation of the at least one power switch responsive to an output measurement of the power supply. The digital controller comprises an analog-to-digital converter providing a digital error signal representing a difference between the output measurement and a reference value, a digital filter providing a digital control output based on a sum of previous error signals and previous control outputs, an error controller adapted to modify operation of the digital filter upon an error condition, and a digital pulse width modulator providing a control signal to the power switch having a pulse width corresponding to the digital control output. A method for controlling the power supply comprises the steps of receiving an output measurement of the power supply, sampling the output measurement to provide a digital error signal representing a difference between the output measurement and a reference value, filtering the digital error signal to provide a digital control output based on a sum of previous error signals and previous control outputs, modifying operation of the filtering step upon an error condition, and providing a control signal to the at least one power switch, the control signal having a pulse width corresponding to the digital control output.

REFERENCES:
patent: 3660672 (1972-05-01), Berger et al.
patent: 4194147 (1980-03-01), Payne et al.
patent: 4538073 (1985-08-01), Freige et al.
patent: 4538101 (1985-08-01), Shimpo et al.
patent: 4622627 (1986-11-01), Rodriguez et al.
patent: 5053920 (1991-10-01), Staffiere et al.
patent: 5073848 (1991-12-01), Steigerwald et al.
patent: 5079498 (1992-01-01), Cleasby et al.
patent: 5229699 (1993-07-01), Chu et al.
patent: 5377090 (1994-12-01), Steigerwald
patent: 5481140 (1996-01-01), Maruyama et al.
patent: 5990669 (1999-11-01), Brown
patent: 6163143 (2000-12-01), Shimamori
patent: 6191566 (2001-02-01), Petricek et al.
patent: 6211579 (2001-04-01), Blair
patent: 6262900 (2001-07-01), Suntio
patent: 6421259 (2002-07-01), Brooks et al.
patent: 6429630 (2002-08-01), Pohlman et al.
patent: 2001/0033152 (2001-10-01), Pohlman et al.
patent: 2002/0073347 (2002-06-01), Zafarana et al.
patent: 2003/0122429 (2003-07-01), Zhang et al.
patent: 2003/0142513 (2003-07-01), Vinciarelli
patent: 2003/0201761 (2003-10-01), Harris
patent: 2004/0027101 (2004-02-01), Vinciarelli
33702 Microprocessor Power Supply (3.0A) Analog Products MC33702 Fact Sheet; Motorola/Digital dna/Power Management Switching; pp. 1-4, no date.
“Motorola Switch Mode Power Supply With Multiple Linear Regulators And High Speed CAN Transceiver” Motorola, Inc. 2002; digital dna; Analog Marketing; Rev. 2.5, Nov. 2002, 33394; Multi-Output Power Supply Semiconductor Technical Data.
“Power Management Solutions For Networking Applications”; Presented by Luc Darmon Smart Networks Developer Forum 2003—Jun. 4-6 Euro-Disney Paris, France; Motorola digital dna; www.motorola.com/sndf; pp. 1-26.
Preliminary Information 1.5 A Switch-Mode Power Supply With Linear Regulator 33701; Power Supply Integrated Circuit; Motorola Semiconductor Technical Data; Analog Marketing MC33701/D Rev. 1.0, May 2003; Motorola digital dna; pp. 1-24.
“The 12-C Bus Specification” Version 2.1; Jan. 2000; document order No.: 9398 393 40011; Phillips Semiconductors; pp. 1-46.
“System Management Bus Specification” Smart Battery System Specifications; Revision 1.1 Dec. 11, 1998; SBS Implementers Forum; Version 1.1; pp. 1-39.
“KEKB Power Supply Interface Controller Module” by A. Akiyama, T. Nakamura, M. Yoshida, T. Kubo, N. Yamamoto and T. Katoh KEK, High Energy Accelerator Research Organization, 1-1 Ohio, Tsukuba 305, Japan, no date.
“Magnet Power Supply Control System KEKB Accelerators” by T.T. Nakamura, A. Akiyama, T. Katoh, Ta. Kubo, N. Yamamoto, M. Yoshida, KEK, Tsukuba, Japan International Conference On Accelerator And Large Experimental Physics Control Systems, 1999, Trieste, Italy, pp. 406-408, no date.
“Electronics Products” by Paul Birman and Sarkis Nercessian, Kepco, Inc. Flushing NY vol. 37, No. 10, Electronic Products, mar. 1995; The Engineer's Magazine of Product Technology; Power Supply Special; DSO Samples Single Shots at 10 Gsamples/s Speech Recognition On A Single Chip LCD Has Flat-Panel Benefits At CRT Cost Product Update: High-Performance OP AMPS; A Hearst Business Publication; pp. 1, 5, 33-34.

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

Digital control system and method for switched mode power... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital control system and method for switched mode power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital control system and method for switched mode power... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3494881

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