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:
Feb. 05, 2008
Filed:
May. 24, 2004
Kazuhiko Sakamoto, Kashiwa, JP;
Hiroshi Takano, Moriya, JP;
Kazuhiko Sakamoto, Kashiwa, JP;
Hiroshi Takano, Moriya, JP;
Hitachi Medical Corporation, Tokyo, JP;
Abstract
A semiconductor switchconnected in series with a smoothing capacitoris constituted by connecting in parallel a diodeD which permits to flow current regenerated from energy of electric charges stored in a high voltage capacitorto a primary side of a high voltage transformerfor the smoothing capacitorand switching meansS which interrupts an output from the smoothing capacitor, and after turning off the switching meansS, through alternative on and off control of switching meansS˜S the energy of electric charges stored in the high voltage capacitoris regenerated to the smoothing capacitorby making use of parasitic leakage inductanceL. As a result, an X-ray high voltage device is provided which permits to drop a wave tail of a tube voltage in a high speed without complexing the structure of the high voltage part thereof.