Patents by Inventor Tomoyuki Miki

Tomoyuki Miki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multiphase DC/DC converter with output phases deviated from or aligned with each other and driven with fixed on time
    Patent number: 8324875
    Abstract: A multiphase DC/DC converter according to the present invention includes: a plurality of DC/DC converters whose outputs are connected in common to supply electric power to a load; a load state detection portion which detects a state of the load connected to the plurality of DC/DC converters and outputs a detection result; and a control circuit which drives each of the plurality of DC/DC converters based on outputs from the plurality of DC/DC converters, and based on an output from the load state detection portion, drives the plurality of DC/DC converters with output phases of the plurality of DC/DC converters deviated from each other or with the output phases of the plurality of DC/DC converters aligned with each other.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: December 4, 2012
    Assignee: Rohm Co., Ltd.
    Inventors: Tomoyuki Miki, Koji Nishikawa, Keisuke Kadowaki
  • MULTIPHASE DC/DC CONVERTER
    Publication number: 20100109622
    Abstract: A multiphase DC/DC converter according to the present invention includes: a plurality of DC/DC converters whose outputs are connected in common to supply electric power to a load; a load state detection portion which detects a state of the load connected to the plurality of DC/DC converters and outputs a detection result; and a control circuit which drives each of the plurality of DC/DC converters based on outputs from the plurality of DC/DC converters, and based on an output from the load state detection portion, drives the plurality of DC/DC converters with output phases of the plurality of DC/DC converters deviated from each other or with the output phases of the plurality of DC/DC converters aligned with each other.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 6, 2010
    Applicant: Rohm Co., Ltd.
    Inventors: Tomoyuki Miki, Koji Nishikawa, Keisuke Kadowaki