Patent · US Active

Multiphase power regulator with discontinuous conduction mode control

US10270346B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Antonio Priego · Freising, DE
Neil Gibson · Freising, DE
Syed Wasif Mehdi · Freising, DE

Key dates

Filing date	Dec 22, 2017
Grant date	Apr 23, 2019
Priority date	—
Expiry date	Dec 22, 2037

Classification

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

Abstract

A multiphase power regulator includes a plurality of phases coupled in parallel to provide a load current as a combination of phase currents at an output voltage, each phase including at least one power transistor switched to provide a respective phase current based at least in part on a comparator output signal, and a current-sense low pass filter to sense the phase current. The regulator further includes a gm stage to generate the current set point voltage based at least in part on the output voltage, a comparator to compare a voltage from the current-sense low pass filters to the current set point voltage and a current set point adjustment circuit to provide an auxiliary control signal to decrease the current set point voltage responsive to a change in comparator output and then to increase the current set point voltage responsive to another change in comparator output.

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