Multiphase voltage regulators and methods for voltage...

Details Multiphase voltage regulators and methods for voltage... Multiphase voltage regulators and methods for voltage...

2011-03-01

2011-03-01

Nguyen, Matthew V (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

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

Reexamination Certificate

active

07898233

ABSTRACT:
A multiphase voltage regulator system comprises a microcontroller unit (MCU) including a reference voltage generator, and a timing generator for generating n-phase start timing signals; a load for receiving an output voltage; a comparator comparing the reference voltage and output voltage to generate a comparison result; and at least n points of load (POLs) coupled between the MCU and load for controlling output voltage in response to the n-phase start timing signals and the comparison result. Each POL may include a high-side and low-side transistor; and a D-FlipFlop, the D terminal coupled High, the clock terminal coupled to receive a control signal based on a respective one of the n-phase start timing signals, the Q terminal coupled to drive the high-side transistor, the /Q terminal coupled to drive the low-side transistor, and the reset terminal coupled to receive a reset control signal based on the comparison result.

REFERENCES:
patent: 6583610 (2003-06-01), Groom et al.
patent: 6670794 (2003-12-01), Wang et al.
patent: 6674274 (2004-01-01), Hobrecht et al.
patent: 7026798 (2006-04-01), Cheung et al.
patent: 7592787 (2009-09-01), Qui et al.
patent: 2010/0033151 (2010-02-01), Wu et al.

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