Back to results
US 2016/0254747 A1Published application
Multiphase dc/dc converter
AssigneeMurata Manufacturing Co., Ltd.
InventorsAtsuo HIRUKAWA, Ko YAMANAGA
Life of this patent
Estimating the term…
Abstract
A two-phase DC/DC converter includes, as an inductor array, a pair of inductors to which a DC input voltage is alternately applied with a phase difference of about 180 degrees through switching control of switching devices. A duty ratio is substantially in a range from 5% to 40%, and a coupling factor between the inductors is substantially in a range from −0.4 to −0.1. With this configuration, ripple current in the inductors can be made to be smaller than in the case in which there is no coupling between the inductors even when the duty ratio considerably varies.
Claims2
A multiphase DC/DC converter comprising:
- an inductor array,
- wherein the inductor array includes a pair of inductors to which a DC input voltage is alternately applied with a phase difference of about 180 degrees through switching control of switching devices,
- wherein a duty ratio of a DC output voltage to a DC input voltage is substantially within a range from 5% to 40%, and
- wherein a coupling factor between the inductors is substantially in a range of greater than −0.4 and −0.1 or less.
1 more element
Dependencies are inferred from the claim text.