Integrated FET synchronous multiphase buck converter with...

Details Integrated FET synchronous multiphase buck converter with... Integrated FET synchronous multiphase buck converter with...

2008-07-07

2009-06-02

Vu, Bao Q (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C323S274000, C323S222000

Reexamination Certificate

active

07541794

ABSTRACT:
A power conversion system, preferably a buck converter, having (i) an oscillator, (ii) a pulse width modulator, (iii) and a nonoverlap clock generator and level shifter, wherein the improvement comprises the elimination of an external resistor divider is described. The buck converter can convert input voltage ranging from approximately 3V to 5V down to approximately 0.7-1.0V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V without the use of resistor dividers. The voltage input identifiers select one of the possible output settings for flexibility and accuracy. The integrated field emitting transistors can provide a continuous current of at least 6 A. Additionally, peak current mode and an oscillator enable multiphase operation, up to ten buck converters, for up to 60 A output current. The multiphase operation reduces the output inductor size, and number of bulk capacitors. Moreover, the multiphase operation yields higher efficiency and provides high transient response for demanding applications.

REFERENCES:
patent: 5821734 (1998-10-01), Faulk
patent: 6424132 (2002-07-01), Wrathall
patent: 6724257 (2004-04-01), Wrathall
patent: 6737841 (2004-05-01), Wrathall
patent: 7397230 (2008-07-01), Tabaian et al.
Data Sheet, Texas Instruments Inc., “High-Frequency, Multiphase Controller”, pp. 1-21, Part No. TPS40090, SLUS578—Oct. 2003.
Data Sheet, Intersil Americas Inc., “Microprocessor Core Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications”, pp. 1-17, Part No. ISL6219A, Nov. 2002, FN9093.
Data Sheet, Maxim Integrated Products, “Parallelable Secondary-Side Synchronous Rectifier Driver and Feedback-Generator Controller ICs”, pp. 1-25, Part No. MAX5058/MAX5059, 19-3045; Rev 0; Oct. 2003.
International Preliminary Report on Patentability Chapter 1 for International Application No. PCT/US05/44830, Jun. 4, 2007.
Written Opinion of the International Search Authority for International Application No. PCT/US05/44830, Jun. 4, 2007.

Affiliated with

Also associated with

Rating

Integrated FET synchronous multiphase buck converter with... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated FET synchronous multiphase buck converter with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated FET synchronous multiphase buck converter with... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4106493