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. 17, 2014
Filed:
Aug. 03, 2012
Applicants:
MI Yan, Columbus, IN (US);
Baohua Qi, Columbus, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 7/08 (2006.01); H03K 3/017 (2006.01); G05B 11/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus and method for controlling a device using pulse signals. In the apparatus and method, a two-stage control is used to generate pulse signals, which can be a PWM signal, a pulse signal including a PWM signal with a sleeping time, or a PDM signal. The two-stage control includes a second stage control, which generates pulse signals according to parameter values generated periodically by a first stage according to a target value and feedback sensing values. The two-stage control can be used in decreasing perturbation in a closed-loop control and accurate open-loop control.