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. 21, 2006
Filed:
Jan. 30, 2003
Jose A. Santin, Cypress, TX (US);
Md. Masud Reza, Houston, TX (US);
Atluri Rama Prasad, Houston, TX (US);
Hai N. Nguyen, Spring, TX (US);
Jose A. Santin, Cypress, TX (US);
Md. Masud Reza, Houston, TX (US);
Atluri Rama Prasad, Houston, TX (US);
Hai N. Nguyen, Spring, TX (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The specification may disclose a switching power supply operated in a discontinuous current power factor corrected mode, having multiple boost circuits or boost modules, and controlled by a digital signal processor. The digital signal processor may implement a control scheme whereby the duty cycle of the switching signals applied to the boost modules may be controlled, in part, by the amount of power delivered to the load in the previous half cycle of the source voltage. In another aspect, an output voltage correction to the switching signals may be applied at the end of each half cycle, which may result in voltage correction at twice the source frequency.