Invention Grant
- Patent Title: Magnetic resonance imaging switching power amplifier system and methods
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Application No.: US15634598Application Date: 2017-06-27
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Publication No.: US10585155B2Publication Date: 2020-03-10
- Inventor: Ruxi Wang , Xiaohu Liu , Han Peng , Fengfeng Tao , Juan Antonio Sabate
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Main IPC: G01R33/385
- IPC: G01R33/385 ; G01R33/36 ; G01R33/422

Abstract:
This disclosure regards a magnetic resonance imaging system including a scanner, and gradient drivers. The scanner is to be implemented within a scan room that is shielded from electromagnetic interference. Gradient coils are designed to create a linear gradient in the magnetic field generated in the scanner by a primary magnet. These coils are energized by gradient drivers. The gradient drivers use transformers and other electrical devices in a switching stage configured to generate pulse-width-modulated power. The transformers may have non-magnetic cores to facilitate implementing the gradient drivers within the scan room. The gradient drivers also use a filtering stage which uses inductors and other electrical devices to smooth the pulse-width-modulated power. The inductors within the filters may have non-magnetic cores to facilitate implementing the gradient driver within the scan room. Additionally, an inductor with a hollow wire may be used to circulate fluid to facilitate cooling the gradient driver.
Public/Granted literature
- US20180372819A1 MAGNETIC RESONANCE IMAGING SWITCHING POWER AMPLIFIER SYSTEM AND METHODS Public/Granted day:2018-12-27
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