Invention Grant
- Patent Title: X-ray high voltage apparatus, power supply apparatus, and X-ray imaging apparatus
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Application No.: US16542743Application Date: 2019-08-16
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Publication No.: US10863609B2Publication Date: 2020-12-08
- Inventor: Fumio Ishiyama
- Applicant: CANON MEDICAL SYSTEMS CORPORATION
- Applicant Address: JP Otawara
- Assignee: CANON MEDICAL SYSTEMS CORPORATION
- Current Assignee: CANON MEDICAL SYSTEMS CORPORATION
- Current Assignee Address: JP Otawara
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2018-155424 20180822
- Main IPC: H05G1/20
- IPC: H05G1/20 ; H02M5/458 ; H05G1/12 ; H02M1/44 ; G01N23/04 ; H02M3/158

Abstract:
According to one embodiment, an X-ray high voltage apparatus includes an AC/DC converter, an inverter circuit, a high voltage generator, a power storage device, and the DC/DC converter. The AC/DC converter converts an AC voltage into a DC voltage. The inverter circuit converts the DC voltage into an AC voltage. The high voltage generator externally outputs a power obtained by boosting and rectifying the AC voltage outputted by the inverter circuit. The DC/DC converter receives the DC voltage, and charges and discharges the power storage device. The DC/DC converter is a multi-phase converter including DC/DC converter blocks. Each of the DC/DC converter blocks includes a choke coil. The choke coil is provided with a correction winding for correcting a deviation of a magnetic flux caused by a DC current superimposed on the corresponding choke coil. The correction windings are applied with a summed current based on the DC/DC converter.
Public/Granted literature
- US20200068694A1 X-RAY HIGH VOLTAGE APPARATUS, POWER SUPPLY APPARATUS, AND X-RAY IMAGING APPARATUS Public/Granted day:2020-02-27
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