The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2016
Filed:
Oct. 24, 2012
General Electric Company, Schenectady, NY (US);
Fei Xu, Shanghai, CN;
Tao Ma, Shanghai, CN;
Xi Lu, Shanghai, CN;
Xinhui Wu, Shanghai, CN;
Yimeng Shi, Hangzhou, CN;
Pengcheng Zhu, Shanghai, CN;
Garron Koch Morris, Whitefish Bay, WI (US);
Juan Antonio Sabate, Gansevoort, NY (US);
Jeffrey Neal Slotnick, Niskayuna, NY (US);
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
A gradient amplifier for driving a gradient coil is disclosed. The gradient amplifier includes a direct current (DC) bus for receiving DC voltage generated from a series resonant converter, an inverter coupled to the DC bus configured to receive the DC voltage at the DC bus and convert the DC voltage to generate an output voltage to be applied to the gradient coil, and an inverter controller coupled to the inverter. The inverter controller is configured to generate control signals to control operation of the inverter based at least on a DC voltage feedback signal measured at the DC bus, an output voltage feedback signal measured at the output of the inverter, and a reference output voltage signal indicative of a desired voltage to be achieved at the output of the inverter.