Patent · US Active

Apparatus and method for digitally controlled buck-boost switching regulator

US8305061B1 · kind B1 · utility

11Cited by

10References

15Claims

0Family size

Assignee

NATIONAL SEMICONDUCTOR CORPORATION · US

Inventors

Jianhui Zhang · Nanhu, CN
Martin Embacher · Augsburg, DE
Frank Trautmann · Munich, DE
Christian Giassner · Berching, DE

Key dates

Filing date	Jun 4, 2008
Grant date	Nov 6, 2012
Priority date	—
Expiry date	Sep 21, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02M3/1582
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A buck/boost regulator controller is provided. The buck-boost regulator controller controls four switches in an H-bridge configuration to control voltage regulation. The buck/boost regulator controller includes a digital error amplifier and buck-boost control logic. The digital error amplifier provides a multi-bit digital error voltage signal that is based on the difference between the output voltage and the desired output voltage. The buck-boost control logic controls the opening and closing of the four switches in the H-bridge based, in part, on the multi-bit digital error voltage signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.