发明名称 |
Contactless power transfer system for a rotational load |
摘要 |
Power is transferred from a stationary power supply to a rotational gantry in a computer tomography (CT) system through a rotary transformer arranged in a ring configuration with an inner diameter that is sufficiently large to receive a patient. The rotary transformer has a toroidal rotor core and a toroidal stator core arranged either concentrically with an air gap extending radially therebetween or side-by-side with an air gap extending axially therebetween. A resonant inverter provides ac power to the rotary transformer which, in turn, drives a high-voltage tank circuit coupled to a x-ray tube, the tank circuit and x-ray tube being mounted on a rotational gantry. Advantageously, this is a contactless power transfer system which eliminates conventional brush and slip ring arrangements and moreover avoids the need for mounting the inverter to rotate with the CT gantry.
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申请公布号 |
US5608771(A) |
申请公布日期 |
1997.03.04 |
申请号 |
US19950547078 |
申请日期 |
1995.10.23 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
STEIGERWALD, ROBERT L.;MALLICK, JOHN A.;PARK, JOHN N. |
分类号 |
A61B6/00;H01F38/18;(IPC1-7):A61B6/03 |
主分类号 |
A61B6/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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