Patent · US Active

Ultra-low Iq buck converter with switchable error amplifier

US11218076B2 · kind B2 · utility

1Cited by

10References

21Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Antonio Priego · Freising, DE
Johann Bayer · Freising, DE
Gerhard Thiele · Dachau, DE

Key dates

Filing date	Aug 31, 2019
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Nov 6, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching converter circuit includes a hysteretic comparator with a reference voltage (VREF) node and a feedback node. The switching converter circuit also includes a switchable error amplifier circuit coupled to the feedback node of the hysteretic comparator. The switchable error amplifier circuit includes an error amplifier that is coupled to the feedback node during a power-save mode and that is decoupled from the feedback node during a deep power-save mode initiated in response to a duration of the power-save mode being greater than a time threshold.

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