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.:
Date of Patent:
Sep. 01, 2020
Filed:
Jun. 25, 2019
Applicant:
Stmicroelectronics (China) Investment Co. Ltd, Shanghai, CN;
Inventors:
Assignee:
STMicroelectronics (China) Investment Co. Ltd, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/45 (2006.01); G05F 3/26 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 1/45 (2013.01); G05F 3/26 (2013.01);
Abstract
A voltage regulator includes two input pairs of opposite type transistors, p-type and n-type, to provide a soft-start functionality for gradually increasing the voltage regulator's output voltage from zero, or a voltage below the thresholds of the n-type transistors, to an operational voltage. The voltage regulator operates in a soft-start mode during which a variable input voltage signal is ramped up to allow the output voltage to reach the operational voltage, and a normal-operation mode during which the operational voltage is maintained.