Patent · US Active

Dynamic biasing circuit for main comparator to improve load-transient and line-transient performance of buck converter in 100% mode

US11881780B2 · kind B2 · utility

1Cited by

1References

16Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

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

Key dates

Filing date	Feb 24, 2023
Grant date	Jan 23, 2024
Priority date	—
Expiry date	Feb 24, 2043

Classification

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

Abstract

An electrical system includes: 1) a buck converter; 2) a battery coupled to an input of the buck converter; and 3) a load coupled to an output of the buck converter. The buck converter includes a high-side switch, a low-side switch, and regulation loop circuitry coupled to the high-side switch and the low-side switch. The regulation loop circuitry includes: 1) a main comparator; 2) a bias current source coupled to the main comparator and configured to provide a bias current to the main comparator; and 3) a dynamic biasing circuit coupled to the main comparator and configured to add a supplemental bias current to the bias current in 100% mode of the buck converter. The supplemental bias current varies depending on an input voltage (VIN) and an output voltage (VOUT) of the buck converter.

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