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:
Mar. 08, 2016
Filed:
Oct. 30, 2013
Luciano Zoso, Chandler, AZ (US);
Allan P. Chin, Gilbert, AZ (US);
Luciano Zoso, Chandler, AZ (US);
Allan P. Chin, Gilbert, AZ (US);
STELLAMAR LLC, Chandler, AZ (US);
Abstract
A fully digital synthesizable digital controller () controls a switch-mode DC-DC converter () having switching elements () and an LC circuit () for producing an output voltage () that is maintained at a desired level regardless of load changes that can occur on the output. The digital controller () comprises an input stage (), proportional-integral-derivative (PID) compensator (), and a digital sigma-delta modulator (). The input stage () produces a difference signal between a reference voltage Vref and a feedback voltage Vfbk, and comprises (i) first and second delta-sigma-delta modulators () and a subtractor (), (ii) a delta-sigma-delta modulator () and a subtractor (); or (iii) a comparator (). The PID compensator () processes the difference signal to compensate for an undesired phase shift and to stabilize the feedback loop. The digital sigma-delta modulator () generates a switching element control signal for controlling at least one of the switching elements.