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US 9,314,221 B2Granted
Common DC bus power CT system
AssigneeGeneral Electric Company
InventorsJason Stuart Katcha, Ezana T. Mekonnen
Life of this patent
Estimating the term…
Abstract
A CT system includes a gantry having a rotatable base and having an opening for receiving an object to be scanned, and an AC-to-DC converter coupleable to a 3-phase AC facility power, and coupled through a DC bus to a gantry motor to rotationally drive the rotatable base using DC power from the AC-to-DC converter. Rotational energy in the rotatable base is converted to DC electrical energy in the gantry motor during gantry braking, and provided to the DC bus.
Claims20
A CT system comprising:
- a gantry having a rotatable base and having an opening for receiving an object to be scanned;
- an AC-to-DC converter coupleable to a 3-phase AC facility power, and coupled through a DC bus to a gantry motor to rotationally drive the rotatable base using DC power from the AC-to-DC converter, wherein rotational energy in the rotatable base is converted to DC electrical energy in the gantry motor during gantry braking, and provided to the DC bus;
- and
- an energy storage system coupled to the DC bus, wherein the energy storage system is configured to provide power, via the DC bus, to an additional component of the CT system.
1 more element
A method of manufacturing a CT system, comprising:
- electrically coupling a gantry motor to a DC electrical bus, wherein the gantry motor is mechanically coupled to a rotatable gantry of the CT system;
- electrically coupling a DC output of an AC-to-DC converter to the DC bus electrical bus, wherein an AC input to the AC-to-DC converter is coupleable to a 3-phase AC facility power, wherein rotational energy in the rotatable gantry is converted to DC electrical energy in the gantry motor during gantry braking, and provided to the DC bus;
- and
- electrically coupling an energy storage system to the DC bus, wherein the energy storage system is configured to provide power, via the DC bus, to an additional component of the CT system.
1 more element
An imaging system electrical circuit, comprising:
- an electrical bus;
- a DC output of an AC-to-DC converter coupled to the electrical bus;
- a gantry motor electrically coupled to the electrical bus;
- wherein:
- an AC input to the AC-to-DC converter is coupleable to a 3-phase AC electrical source;
- and
- rotational energy in a gantry that is mechanically coupled to the gantry motor is converted to DC electrical energy in the gantry motor during gantry braking, and provided to the electrical bus;
- and
- an energy storage system coupled to the electrical bus, wherein the energy storage system is configured to provide power, via the DC bus, to an additional component of the CT system.
6 more elements
Dependencies are inferred from the claim text.