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. 10, 2018

Filed:

Aug. 08, 2017
Applicant:

Dyna Image Corp., New Taipei, TW;

Inventors:

Sheng-Cheng Lee, New Taipei, TW;

Wen-Sheng Lin, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/56 (2006.01); G05F 1/563 (2006.01); G05F 1/565 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/563 (2013.01); G05F 1/565 (2013.01); G05F 1/575 (2013.01);
Abstract

Differing from conventional LDO voltage regulator being unable to work at a sleep mode for saving power dissipation, the present invention discloses a smart low dropout (LDO) voltage regulator capable of being switched to an operation mode or a sleep mode based on the controlling of an enablable signal. This smart LDO voltage regulator comprises an input voltage detecting unit, a switch controlling unit and a voltage regulating module. During the sleep mode of the smart LDO voltage regulator, the switch controlling unit generates a switch controlling signal to change a switch setting of a switch unit of the voltage regulating module, so as to facilitate the smart LDO voltage regulator produce an output voltage through a first voltage regulating unit or a second voltage regulating unit of the voltage regulating module, or directly output input voltage as the output voltage.


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