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:
Apr. 05, 2022
Filed:
Mar. 10, 2020
Nxp B.v., Eindhoven, NL;
Mojtaba Ashourloo, Toronto, CA;
Venkata Raghuram Namburi, Brampton, CA;
Gerard Villar Piqué, Eindhoven, NL;
John Pigott, Phoenix, AZ (US);
Olivier Trescases, Toronto, CA;
Hendrik Bergveld, Eindhoven, NL;
Alaa Eldin Y El Sherif, Plano, TX (US);
NXP B.V., Eindhoven, NL;
Abstract
There are disclosed fault detection circuits and methods for an N-to-1 Dickson topology hybrid DC-DC power converter. A short circuit fault detection circuit comprises: first and second measuring circuits configured to measure first and second voltages, Vsw, Vsw, at the switching node in the first and second state; first and second calculation circuits configured to calculate first and second absolute error voltage as an absolute difference of the respective first and second voltages in one operating cycle (Vsw[n−1], Vsw[n−1]) and in a next subsequent operating cycle (Vsw[n], Vsw[n]); and first and second fault circuits configured to provide first and second fault outputs indicative of a fault in response to the respective first or second absolute error voltage exceeding a short-circuit-trip level. Open circuit fault detection circuits and methods are also disclosed.