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:
Nov. 29, 2005
Filed:
Mar. 07, 2003
Issa Batarseh, Oviedo, FL (US);
Weihong Qui, Kent, WA (US);
Wenkal Wu, Orlando, FL (US);
Shiguo Luo, Plano, TX (US);
Moussaoui Zaki, Palm Bay, FL (US);
Issa Batarseh, Oviedo, FL (US);
Weihong Qui, Kent, WA (US);
Wenkal Wu, Orlando, FL (US);
Shiguo Luo, Plano, TX (US);
Moussaoui Zaki, Palm Bay, FL (US);
University of Central Florida, Orlando, FL (US);
Abstract
A high performance single stage Power Factor Correction (PFC) converter with tight output voltage regulation and a very simple circuit to carry out those functions, which means its cost is lower than its counterparts. Two basic flyback circuits include a simple control circuit. For the hard switching circuit, only one switch is used to achieve low cost; for the soft switching scheme, one auxiliary switch is added to get higher efficiency and smaller size. There are two power flow paths, resulting in part power processed by an active switch only once to reduce the current stress and improve the efficiency. A direct current (DC) bus voltage will be limited to the peak value of input voltage. The maximum DC bus voltage will be less than 400 and a single commercial capacitor can be used for universal voltage stress under light load condition.