Power supply for portable radiographic detector
AssigneesCarestream Health, Inc., Varian Medical Systems, Inc.
InventorsJeffery Richard Hawver, Ivan Petrov Mollov
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Abstract
A digital radiography detector has a two-dimensional array of photosensors disposed in rows and columns. Multiple signal traces connect to the photosensors and extend in a first direction along the two-dimensional array. A switching power supply is connected to a power source and has first and second storage inductors that are substantially matched, are electrically connected in series, include flux fields that are opposite in phase, and are aligned along the first direction of the signal traces.
Claims15
A digital radiography detector comprising:
- a two-dimensional array of photosensors disposed in rows and columns;
- a plurality of signal traces connected to the photosensors and extending in a first direction along the two-dimensional array;
- and
- a switching power supply connected to a power source and comprising first and second storage inductors, wherein the first and second storage inductors are substantially matched, are electrically connected in series, include flux fields that are opposite in phase, and are substantially aligned along the first direction of the signal traces.
A method of providing power to a digital radiographic detector having a two-dimensional array of photosensors disposed in rows and columns and a plurality of signal traces connected to the photosensors and extending in a first direction along the two-dimensional array, the method comprising:
- providing a DC power source;
- connecting a switching power supply to the power source, the switching power supply comprising first and second storage inductors that are substantially matched, are electrically connected in series, include flux fields that are opposite in phase, and are substantially aligned along a direction that is parallel to the plurality of signal traces of the digital radiographic detector;
- and
- offsetting switching transitions of the switching power supply and signal transitions of sampling control signals for sensing devices of the detector.
Dependencies are inferred from the claim text.