Patent · US Active

Method and system for buck converter current re-use for minimum switching frequency pulse-skip operation

US10845833B1 · kind B1 · utility

13Cited by

7References

20Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Stefan Dietrich · Potsdam, DE
Christian Harder · Freising, DE
Emil Cioran · Freising, DE

Key dates

Filing date	Oct 15, 2019
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Oct 15, 2039

Classification

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

Abstract

A buck voltage converter comprising a high side switch, a low side switch, a capacitor, an inductor, a gate driver circuit having outputs coupled to the gate terminal of the high side switch and the gate terminal of the low side switch, and a separate voltage regulator circuit that powers circuitry internal to the buck voltage converter. The voltage regulator circuit includes a multiplexer having a first multiplexer input coupled to the input voltage source, a second multiplexer input coupled to the buck output of the buck voltage converter, and one or more multiplexer control inputs to select which of the two multiplexer inputs is coupled to a multiplexer output and pass transistor having a first terminal coupled to the multiplexer output of the multiplexer and having a second terminal coupled to the regulator output of the voltage regulator.

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