X-ray generating apparatus and method of driving X-ray tube
US8774364B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inverter circuit is shared by respective drive circuits that supply a predetermined voltage to a lens electrode and a grid electrode, or to a lens electrode and a cathode electrode. A DC voltage obtained by full-wave rectifying a pulse train output from the inverter circuit is supplied to the lens electrode, a DC voltage obtained by half-wave rectifying a pulse train output from the inverter circuit is supplied to the grid electrode or cathode electrode. At times of a first operation and a last operation of the inverter circuit during a period of generating X-rays, operations of the inverter circuit are controlled such that a trans circuit outputs a negative polarity voltage to the full-wave rectifying circuit and the half-wave rectifying circuit, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.