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:
Dec. 04, 2007
Filed:
May. 14, 2004
Jun Takahashi, Nagareyama, JP;
Hiroshi Takano, Moriya, JP;
Jun Takahashi, Nagareyama, JP;
Hiroshi Takano, Moriya, JP;
Hitachi Medical Corporation, Kashiwa-Shi, JP;
Abstract
Between terminals of secondary windings in a high-voltage transformer (), there are connected in parallel input side terminals of a plurality of diode full bridge circuits each via voltage maintaining means such as a capacitor maintaining a voltage peak value for a longer period than the cycle of an inverter (). Between the input side terminals of the diode full bridge circuits, there are connected voltage maintaining means such as capacitors maintaining a voltage peak value for a longer period than the cycle of the inverter. Moreover, the output side terminals of the diode full bridges are connected in series via smoothing means such as almost equivalent smoothing capacitors and between the output side terminals, an anode grounding type X-ray tube () is connected. Thus, it is possible to realize a small-size and light-weight device at a reduced cost and reduce the ripple in the output voltage while using the anode grounding type X-ray tube.