Voltage regulator control systems and methods

US10622898B1 · kind B1 · utility

Assignee

• Intel Corporation · US

Inventors

• Stephan Henzler · Munich, DE
• David Herbison · Arvada, US
• Emil Neborovski · Munich, DE
• Thomas Piorek · Hersbruck, DE
• Yifan Wang · Three Rivers, US
• Holger Wenske · Freising, DE
• Tobias Werth · Villach, AT

Key dates

• Filing date: Dec 28, 2018
• Grant date: Apr 14, 2020
• Expiry date: Dec 28, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02M3/1566
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Systems, methods, and circuitries for regulating voltage supplied to a power amplifier are disclosed. In one example, a buck-boost control system is configured to control a buck-boost converter to operate in either a buck mode or a boost mode. The system includes compensator circuitry configured to determine a target current based on a difference between a target voltage and a regulated output voltage of the buck-boost converter and determine a tolerance current that, with the target current, defines a range of expected coil current for the present operating mode. Based on the difference between the target voltage and the regulated output voltage, a charge control signal or a discharge control signal is generated for the converter to cause the coil current to approach the target current. Mode control circuitry is configured to switch the buck-boost converter to the other operating mode when the coil current reaches the tolerance current.