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:
Aug. 07, 2007
Filed:
Jan. 22, 2004
Applicants:
Daniel T. Trabbic, Burton, OH (US);
Thomas R. Mcbride, Newbury, OH (US);
Inventors:
Daniel T. Trabbic, Burton, OH (US);
Thomas R. McBride, Newbury, OH (US);
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A controlled power supply () drives a magnetic field gradient coil () of a magnetic resonance imaging apparatus (). A gradient amplifier () includes a plurality of switching power regulators () which are electrically connected in series. A bipolar circuit () receives power from the series connected switching power regulators () and delivers the power at a selected polarity to the gradient coil (). A control circuit () delivers phase staggered pulse width modulated control signals (A, B, C, D) to the switching power regulators ().