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:
Jun. 06, 2017
Filed:
Apr. 24, 2014
Applicant:
Dialog Semiconductor Gmbh, Kirchheim/Teck-Nabern, DE;
Inventors:
Mark Childs, Swindon, GB;
Paul Collins, Swindon, GB;
Assignee:
Dialog Semiconductor (UK) Limited, Reading, GB;
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/32 (2013.01); H02M 3/1588 (2013.01); Y02B 70/1466 (2013.01);
Abstract
A switching mode power supply (SMPS) is capable of clearing an overvoltage condition. The overvoltage is determined by detecting that the output voltage has exceeded the input voltage by a limited amount. The overvoltage is cleared by repetitively turning on and then off the switches controlling the flow of energy to the SMPS in sequence until the excess charge resulting from the overvoltage is couple to circuit ground, and the output is reduced to within acceptable limits.