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:
Jul. 08, 2008
Filed:
Jul. 10, 2007
Magnetic resonance imaging system with a class-e radio frequency amplifier having a feedback circuit
Cherik Bulkes, Sussex, WI (US);
Stephen Denker, Mequon, WI (US);
Arthur J. Beutler, Greendale, WI (US);
Cherik Bulkes, Sussex, WI (US);
Stephen Denker, Mequon, WI (US);
Arthur J. Beutler, Greendale, WI (US);
Kenergy, Inc., Mequon, WI (US);
Abstract
A Class-E amplifier has been adapted for use in the radio frequency section that drives a transmit coil of a magnetic resonance imaging (MRI) system. The Class-E amplifier responds to a radio frequency carrier signal and a control signal by producing a radio frequency excitation signal for driving the transmit coil. The Class-E amplifier includes a pickup coil that senses a signal emitted from the transmit coil and produces a feedback signal that is used to alter the control signal and thereby control production of the radio frequency excitation signal.