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:
Oct. 11, 2011
Filed:
Oct. 27, 2005
George Young, Blackrock, IE;
Garry Tomlins, Glounthaune, IE;
Andrew Bernard Keogh, Glanmire, IE;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
This invention relates to an ACDC converter () comprising a converter input () and a converter output (), a pre-regulation stage () and a DC transformer stage () comprising a transformer input stage () and a transformer output stage (). The transformer input stage comprises a double ended converter and there is further provided a controller () for providing a control signal to the double ended converter. The controller () operates the ACDC converter using burst mode control and by sending control signals comprising pulse sets that are designed to provide substantially zero net magnetising current in the double ended converter. The pre-regulation stage preferably comprises a buck converter which in turn also provides power factor correction to the input of the ACDC converter.