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:
Apr. 15, 1997
Filed:
Apr. 12, 1995
Applicant:
Inventor:
Edwin R Isaack, Austin, TX (US);
Assignee:
Operating Technical Electronics, Inc., Grand Prairie, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
363 18 ;
Abstract
Overload protection for an AC/DC converter is formed by a high frequency AC power signal provided to a step-down/isolator circuit which converts the power signal to a low voltage signal. An output filter stage then converts the low voltage AC signal to a DC output for use in DC devices. Upon the occurrence of a short circuit or a current overload, the step-down/isolator circuit core becomes saturated, ceasing operation of the step-down/isolator until the short or the connected device drawing the current overload is removed.