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:
Sep. 20, 2011
Filed:
Aug. 18, 2010
Anthony B. Candage, Center Harbor, NH (US);
Gary D. Polhemus, Sebago, ME (US);
Hrvoje Jasa, Scarborough, ME (US);
Robert T. Carroll, Andover, MA (US);
Anthony B. Candage, Center Harbor, NH (US);
Gary D. Polhemus, Sebago, ME (US);
Hrvoje Jasa, Scarborough, ME (US);
Robert T. Carroll, Andover, MA (US);
International Rectifier Corporation, El Segundo, CA (US);
Abstract
A control circuit generates an output based on the first signal and the second signal by encoding the output to be a multi-state signal having at least three states. A magnitude of the multi-state signal generated by the controller varies depending on binary states of the first signal and the second signal. The controller utilizes the output (i.e., the multi-state signal) to control a switching circuit. A driver circuit receives the output generated by the control circuit. In one embodiment, the multi-state signal has more than two different logic states. The driver decodes the multi-state signal for generating signals to control switches in the switching circuit. One signal generated by the driver circuit is a pulse width modulation signal; another signal generated by the driver circuit is an enable/disable signal.