Dual-loop voltage regulator architecture with high DC accuracy and fast response time

US8841893B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• John F. Bulzacchelli · Somers, US
• Carrie E. Cox · Apex, US
• Zeynep Toprak-Deniz · Norwalk, US
• Daniel J. Friedman · Sleepy Hollow, US
• Joseph A. Iadanza · South Burlington, US
• Todd M. Rasmus · Cary, US

Key dates

• Filing date: Aug 19, 2011
• Grant date: Sep 23, 2014
• Expiry date: Apr 25, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F1/575
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Dual-loop voltage regulator circuits and methods in which a dual-loop voltage regulation framework is implemented with a first inner loop having a bang-bang voltage regulator to achieve nearly instantaneous response time, and a second outer loop, which is slower in operating speed than the first inner loop, to controllably adjust a trip point of the bang-bang voltage regulator to achieve high DC accuracy.