The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 21, 2019

Filed:

Dec. 18, 2014
Applicants:

Kenneth Gudan, Menlo Park, CA (US);

Jonathan J. Hull, Menlo Park, CA (US);

Matthew S. Reynolds, Menlo Park, CA (US);

Joshua Ensworth, Menlo Park, CA (US);

Inventors:

Kenneth Gudan, Menlo Park, CA (US);

Jonathan J. Hull, Menlo Park, CA (US);

Matthew S. Reynolds, Menlo Park, CA (US);

Joshua Ensworth, Menlo Park, CA (US);

Assignee:

RICOH CO., LTD, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/02 (2016.01); H02M 3/335 (2006.01); H02J 50/20 (2016.01); H02J 17/00 (2006.01);
U.S. Cl.
CPC ...
H02J 50/20 (2016.02); H02J 7/025 (2013.01); H02J 17/00 (2013.01);
Abstract

A DC-DC boost converter and apparatus including the same are disclosed. In one embodiment, the DC-DC converter comprises an input for receiving a first voltage at a first level, where the first voltage is negative; a transformer coupled to the input to convert the first voltage to a second voltage at a second level, where the second level is higher than the first level and the second voltage is positive; and an output connected to the transformer to output the second voltage.


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