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. 30, 1997
Filed:
Jul. 01, 1996
Edward D Johnson, Plano, TX (US);
DSC Telecom L.P., Plano, TX (US);
Abstract
A current-fed DC-to-DC converter (10) includes an input choke (20) which reduces current fluctuation in the converter (10). A power transformer (26), which is coupled to the input choke (20), transforms electrical energy at one voltage magnitude into electrical energy at another voltage magnitude. A first output rectifier (32) is coupled to the input choke (20). A second output rectifier (34, 36) is coupled to the power transformer (26). A first isolation diode (38) and a second isolation diode (40, 42) are coupled to the anodes of the first output rectifier (32) and the second output rectifier (34, 36), respectively. A transient voltage suppression element (12) is coupled to the first isolation diode (38) and the second isolation diode (40, 42). The transient voltage suppression element (12) limits the magnitude of voltage transients created by the input choke (20) and the power transformer (26) during operation of the converter (10), thereby preventing damage to the first and second output rectifiers (32, 34, 36).