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. 15, 2015
Filed:
Jun. 28, 2013
Chi-ming Wang, Canton, MI (US);
Masaki Wasekura, Aichi-gun, JP;
Robert D. Lorenz, Madison, WI (US);
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
WISCONSIN ALUMNI RESEARCH FOUNDATION, Madison, WI (US);
Abstract
A DC-to-DC, converter that can reduce a loss of the converter is provided. The DC-to-DC converter includes an inductor, a switching transistor connected to the inductor, and a controller that drives the transistor. The controller acquires a next step reference value for the DC-to-DC converter in a sampling time Ta. The next step reference value is expressed by an output voltage of the DC-to-DC converter or a flux linkage of the inductor. The controller determines interpolating points between a current state value that corresponds to the current reference value and the next step reference value in a sampling time Ts that is shorter than the sampling time Ta based on a loss of the DC-to-DC converter while changing from the current state value to the next step reference value. The controller supplies to the switching transistor the PWM signals with a duty that corresponds to each of the interpolating points.