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:
Dec. 02, 2014
Filed:
Jun. 25, 2012
Steven P. Laur, Raleigh, NC (US);
M. Jason Houston, Cary, NC (US);
Rhys S. A. Philbrick, Cary, NC (US);
Thomas A. Jochum, Durham, NC (US);
Steven P. Laur, Raleigh, NC (US);
M. Jason Houston, Cary, NC (US);
Rhys S. A. Philbrick, Cary, NC (US);
Thomas A. Jochum, Durham, NC (US);
Intersil Americas LLC, Milpitas, CA (US);
Abstract
A predictive current feedback system for a switched mode regulator including a sample and hold network for sampling voltage across a lower switch of the regulator and for providing a hold signal indicative thereof, and a predictive current feedback network which adds an offset adjustment to the hold signal based on a duration of a pulse width of a pulse control signal developed by the regulator. Sampling may be done while the lower switch is on for providing a hold value indicative of inductor current while the pulse control signal is low. The offset adjustment may be added to the hold signal in response to a transient event when the pulse signal is high. The offset may be incremental values after each of incremental time periods after a nominal time period, or may be a time-varying value. Adjustment may be made while the pulse signal is low as well.