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. 24, 2003
Filed:
Jun. 14, 2001
Applicant:
Inventors:
Xiaodong Sun, Taipei Hsien, TW;
Yanfang Liu, Taipei Hsien, TW;
Assignee:
Lite-On Electronics, Inc., Taipei Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/706 ;
U.S. Cl.
CPC ...
H01F 1/706 ;
Abstract
An inductor with multiple air-gap separations comprises a magnetic core and an enameled wire around the magnetic core. The magnetic core has an air gap with at least a large-gap portion and a small-gap portion. The small-gap portion provides enough inductance in case of low load input to prevent harmonic distortion. The large-gap portion provides enough inductance in case of heavy load output and low input voltage to prevent saturation and temperature rise, thus enhancing power efficiency.