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:
Dec. 29, 2015
Filed:
Jun. 14, 2011
Cornelis Leonardus Gerardus Ham, Oirschot, NL;
Cornelis Leonardus Gerardus Ham, Oirschot, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A gradient coil power supply includes: at least two H-bridge circuits connected in series, wherein each H-bridge circuit supplies: voltage of a first polarity when in a first switching state, voltage of a second polarity when in a second switching state, no voltage when in a third switching state, and no voltage when in a fourth switching state; and a controller for controlling the switching of the H-bridge circuits. The controller is adapted for: receiving a gradient pulse sequence; creating a switching plan for controlling the switching of the H-bridge circuits, wherein the switching plan includes controlling the voltage output of the gradient coil power supply by alternating between the first switching state and the second switching state, and at least one H-bridge circuit being in either the third or fourth switching state for part of the switching plan to cool the H-bridge circuit; and executing the switching plan.