Patent · US Active

Phase regulation in a peak current mode power converter

US11171563B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Michael Couleur · Munich, DE
Yesim Inam · Munich, DE
Dashun Xue · Austin, US

Key dates

Filing date	Apr 30, 2019
Grant date	Nov 9, 2021
Priority date	—
Expiry date	Apr 30, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH02M3/1586
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor may, during a discharge cycle, sink current from the regulated power supply node. A control circuit may generate the rising and falling ramp signals using voltage levels of an input power supply node and the regulated power supply node. The control circuit may also determine a duration of the discharge cycle using results of comparing respective voltage levels of the generated rising and falling ramp signals.

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