发明授权
- 专利标题: Magnetic resonant imaging gradient driver architecture
- 专利标题(中): 磁共振成像梯度驱动器架构
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申请号: US12696972申请日: 2010-01-29
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公开(公告)号: US08760164B2公开(公告)日: 2014-06-24
- 发明人: Juan Manuel Rivas Davila , Ljubisa Dragoljub Stevanovic , Juan Antonio Sabate
- 申请人: Juan Manuel Rivas Davila , Ljubisa Dragoljub Stevanovic , Juan Antonio Sabate
- 申请人地址: US NY Niskayuna
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Niskayuna
- 代理机构: Fletcher Yoder, P.C.
- 主分类号: G01R33/385
- IPC分类号: G01R33/385
摘要:
Embodiments of the present disclosure include a magnetic resonant imaging (MRI) system including a gradient driver configured to deliver a pulse sequence to gradient coils in the MRI system. The gradient driver may be interleaved, and may include two or more interleaved drivers, such that a high amplitude pulse may be output by operating the two interleaved parts of the gradient driver while spreading the electrical loss and maintaining the thermal stability of the system. In one embodiment, each interleaved driver may be rated to output approximately half a maximum amplitude of a current utilized by the gradient coil, and only one interleaved driver may be in operation if only one interleaved driver is sufficient for delivering a necessary pulse to the coils. Further, the interleaved drivers may alternate in operation to maintain thermal stability in the switching semiconductors of the gradient driver.
公开/授权文献
- US20110187369A1 MAGNETIC RESONANT IMAGING GRADIENT DRIVER ARCHITECTURE 公开/授权日:2011-08-04
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