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:
Aug. 22, 2017
Filed:
Dec. 31, 2015
Applicant:
Stmicroelectronics Design and Application S.r.o., Prague, CZ;
Inventor:
Sandor Petenyi, Milovice Nad Labem, CZ;
Assignee:
STMicroelectronics Design and Application S.R.O., Prague, CZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 1/44 (2007.01); G05F 1/625 (2006.01);
U.S. Cl.
CPC ...
H02M 3/156 (2013.01); G05F 1/625 (2013.01); H02M 1/44 (2013.01);
Abstract
A voltage regulator is controlled to improve supply voltage rejection by cancelling an alternating component of a supply voltage signal that is capacitively coupled to a high-impedance node within the voltage regulator. This cancellation is done by capacitively coupling an inverted version of the alternating component to the high-impedance node to thereby substantially cancel the alternating component present on the high-impedance node. The high-impedance node may be a high-impedance voltage reference node of the voltage regulator.