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:
Jan. 23, 2007
Filed:
Jan. 13, 2004
Thomas Scheel, Stolberg, DE;
Christian Hattrup, Würselen, DE;
Thomas Scheel, Stolberg, DE;
Christian Hattrup, Würselen, DE;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A description is given of a power supply unit, an X-ray device having a power supply unit, and a method of controlling a power supply unit. In order also to control non-linear control paths, such as of a power supply unit operated with mixed-mode modulation, it is proposed that the control device be designed as a digital control device which calculates at least one correcting variable. The control device processes at least a first actual value U, which depends on the output voltage. A time difference value is calculated from two sample values of the first actual value Uand is multiplied by a first controller coefficient K. The value of the first controller coefficient can in this case change as a function of the operating point of the power supply unit.