公开(公告)号：US10746816B2

公开(公告)日：2020-08-18

申请号：US15888207

申请日：2018-02-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Douglas John Link ,  Scott Walterman ,  Randy Hladilek ,  Timothy Strait ,  Margaret Wiza ,  Melissa Freeman

IPC: G01R33/36 ,  G01R33/00 ,  G01R33/44 ,  G01R33/385

Abstract: A system for removing energy from an electrical choke is provided. The system includes one or more cores, at least one inductive coupling, and a resistor. The one or more cores are configured to form part of the electrical choke by generating magnetic energy. The at least one inductive coupling is operative to convert the magnetic energy into electrical energy. The resistor is electrically connected to the at least one inductive coupling and operative to dissipate the electrical energy as heat.

公开(公告)号：US10310038B2

公开(公告)日：2019-06-04

申请号：US15163193

申请日：2016-05-24

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Margaret Ann Wiza ,  Melissa Jean Freeman ,  Syed Saad Asif Ali ,  Douglas John Link ,  Michael Thomas Rose ,  Tanzania Samone Sewell

IPC: G01R33/385

Abstract: A method for supplying electrical power to a gradient amplifier that drives a gradient coil for a magnetic resonance imaging system is provided. The method includes predicting a gradient voltage required to drive the gradient coil for a scan based at least in part on a gradient coil model. The method further includes calculating a voltage set point for a power supply based at least in part on the predicted gradient voltage. The method further includes providing electrical power to the gradient amplifier via the power supply based at least in part on the calculated voltage set point. The gradient coil model is based at least in part on historical data acquired prior to the scan.