公开(公告)号：US20190257902A1

公开(公告)日：2019-08-22

申请号：US15901742

申请日：2018-02-21

Applicant: General Electric Company

Inventor： Viswanathan Kanakasabai ,  Jayanti Ganesh ,  Juan Antonio Sabate

IPC: G01R33/385 ,  H03F3/217 ,  H02M3/335

Abstract: Power systems and circuitry for generation of gradient magnetic fields in magnetic resonance imaging (MRI) systems are discussed herein. Embodiments may include the use of multiple gradient amplifiers that share a high-frequency power distribution unit, that may perform power distribution and power supply roles. The high-frequency power distribution unit may allow the use of a single power supply to drive multiple gradient amplifiers via a shared power bus. The gradient amplifiers may make use of modern semiconductor materials that provide high-frequency, high voltage performance, and may be implemented using single semiconductor bridges.