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:
Dec. 15, 2015

Filed:

May. 28, 2010
Applicants:

Ravi Vijayaraghavan, Chennai, IN;

Sudhir Polarouthu, Hyderabad, IN;

Inventors:

Ravi Vijayaraghavan, Chennai, IN;

Sudhir Polarouthu, Hyderabad, IN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); H02M 3/155 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/155 (2013.01); H02M 3/158 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0045 (2013.01);
Abstract

A DC-DC converter receives input power from a power source and generates a regulated DC voltage as an output. The DC-DC converter contains multiple blocks, each of which is powered by a power supply received on a supply terminal. The DC-DC converter also contains a voltage regulator to generate a lower voltage from the power source. The lower voltage generated by the regulator is provided as the power supply on the supply terminal when the regulated DC voltage is less than a reference value, and the regulated DC voltage itself is provided as the power supply on the supply terminal otherwise. The regulator is switched off when the blocks are powered by the regulated DC voltage, thereby leading to increased efficiency of the DC-DC converter.


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