Patent · US Active

Multiphase interleaved pulse frequency modulation for a DC-DC converter

US10256728B1 · kind B1 · utility

3Cited by

8References

20Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Michael Couleur · Munich, DE
Fabio Ongaro · Munich, DE
Nikola Jovanovic · Tegernsee, DE
Frank Trautmann · Munich, DE

Key dates

Filing date	Dec 21, 2017
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Dec 21, 2037

Classification

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

Abstract

An apparatus includes a plurality of pulse control circuits and a control circuit. A given pulse control circuit of the plurality of pulse control circuits may source a current pulse to the output power signal based on a comparison of a particular feedback signal of a plurality of feedback signals and a target voltage signal. The control circuit may offset a voltage level of each feedback signal of a first subset of the plurality of feedback signals. The first subset may exclude a first feedback signal. In response to a determination that a period of time has ended, the control circuit may offset a voltage level of each feedback signal of a second subset of the plurality of feedback signals. The second subset may include the first feedback signal and exclude a second feedback signal.

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