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:
Apr. 04, 2017

Filed:

Feb. 13, 2015
Applicant:

Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;

Inventor:

Sung-Chun Park, Yongin, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); H02M 3/158 (2006.01); G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); G09G 3/3233 (2013.01); G09G 3/3258 (2013.01); H02M 3/1588 (2013.01); G09G 2330/00 (2013.01); G09G 2330/028 (2013.01); G09G 2360/08 (2013.01); Y02B 70/1466 (2013.01);
Abstract

a DC-DC converter, including a conversion unit configured to convert a battery voltage input to an input terminal of the DC-DC converter into a first voltage, and to output the first voltage to an output terminal of the DC-DC converter, a feedback voltage generation unit configured to generate a feedback voltage by dividing the first voltage, an error amplifier (AMP) configured to supply, to a pulse width modulation (PWM) control circuit, an error signal indicating a voltage difference between the feedback voltage and a reference voltage, the PWM control circuit being configured to control the conversion unit, corresponding to the error signal, thereby changing the first voltage, and a reference voltage supply unit configured to supply the reference voltage to the error AMP, and to change the reference voltage.


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