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:
Nov. 08, 2016

Filed:

Jan. 06, 2015
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Jung-Hun Heo, Suwon-si, KR;

Jong-Pil Lee, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/26 (2006.01); G06F 1/32 (2006.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01); G05F 1/10 (2006.01); G05F 3/02 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3296 (2013.01); G05F 1/10 (2013.01); G05F 3/02 (2013.01); G06F 1/26 (2013.01); H02M 3/33507 (2013.01); H02M 3/33561 (2013.01); H02M 2001/009 (2013.01); H02M 2001/0045 (2013.01); Y02B 60/1285 (2013.01);
Abstract

Provided is a power management device which includes a first regulator, a second regulator and a control register unit. The first regulator provides a first driving voltage to a first power domain of an application processor. The second regulator provides a second power domain of the application processor with a second driving voltage having a correlation with the first driving voltage. The control register unit controls, in response to a command from the application processor, a reference voltage generation circuit that provides a first reference voltage and a second reference voltage to the first regulator and the second regulator, respectively. The level of the first driving voltage is maintained in a first driving mode. The first driving voltage and the second driving voltage have a set voltage difference in a second driving mode.


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