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.

Patent No.:

US 8421436 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Dec. 10, 2009
Applicants:

Hyung-wan Kim, Suwon-si, KR;

Hyeong-sik Choi, Suwon-si, KR;

Gil-yong Chang, Suwon-si, KR;

Inventors:

Hyung-wan Kim, Suwon-si, KR;

Hyeong-sik Choi, Suwon-si, KR;

Gil-yong Chang, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/155 (2006.01);
U.S. Cl.
CPC ...
Abstract

A step-down converter is provided. The step-down converter includes a DC-DC converter including a boost capacitor and an NMOS transistor, the DC-DC converter converting an input direct current (DC) voltage to an output DC voltage; and an electric discharge circuit which adjusts the output voltage to be less than or equal to the input voltage.


Find Patent Forward Citations

Kim, Hyung-wan. (2013). Step-down converter maintaining stable operation at start up (U.S. Patent No. 8421436). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8421436

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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