Method to enable standard alternating current (AC)/direct current (DC) power adapters to operate in high magnetic fields
First Claim
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1. A power supply for supplying power in high external magnetic fields, the power supply comprising:
- a power converter system which converts input power to output power using two or more electromagnetic components; and
one or more ferrous bands which encircle the electromagnetic components and shield the electromagnetic components from the high external magnetic fields;
wherein the two or more electromagnetic components overlap in a two dimensional (2D) projection space defined by axes of the thickness and the width of the ferrous bands;
and further including;
a thermal control system which;
monitors temperatures of one or more magnetic components of the power converter system; and
selectively disables one or more loads of the power converter system in response to the monitored temperatures exceeding thresholds to reduce the monitored temperatures by gradually disabling the loads according to a load priority ranking from low to high until the excessive, monitored temperatures begin dropping.
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Abstract
A power supply (10) and corresponding method (200) supply power in high external magnetic fields. A power converter system (12) converts input power to output power using one or more electromagnetic components (18). One or more ferrous bands (16) encircle the electromagnetic components (18) and shield the electromagnetic components (18) from the high external magnetic fields.
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Citations
18 Claims
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1. A power supply for supplying power in high external magnetic fields, the power supply comprising:
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a power converter system which converts input power to output power using two or more electromagnetic components; and one or more ferrous bands which encircle the electromagnetic components and shield the electromagnetic components from the high external magnetic fields; wherein the two or more electromagnetic components overlap in a two dimensional (2D) projection space defined by axes of the thickness and the width of the ferrous bands; and further including; a thermal control system which; monitors temperatures of one or more magnetic components of the power converter system; and selectively disables one or more loads of the power converter system in response to the monitored temperatures exceeding thresholds to reduce the monitored temperatures by gradually disabling the loads according to a load priority ranking from low to high until the excessive, monitored temperatures begin dropping. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for supplying power in high external magnetic fields, the method comprising:
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providing a power converter system which converts input power to output power using one or more electromagnetic components; and shielding the electromagnetic components from the high external magnetic fields with one or more ferrous bands which encircle the electromagnetic components; monitoring temperatures of one or more magnetic components of the power converter system; and selectively disabling one or more loads of the power converter system in response to the monitored temperatures exceeding thresholds to reduce the monitored temperatures by disabling the loads according to a load priority ranking from low to high until the excessive, monitored temperatures begin dropping. - View Dependent Claims (11, 12, 13)
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14. A power supply for supplying power in high external magnetic fields, the power supply comprising:
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a power converter system which converts input power to output power using one or more electromagnetic components; and a thermal control system including; one or more temperature sensors that monitor temperature of the one or more magnetic components of the power converter system; and a controller that selectively disables one or more loads of the power converter system in response to the monitored temperature exceeding thresholds to reduce the monitored temperatures by gradually disabling the loads according to a load priority ranking from low to high until the excessive, monitored temperatures begin dropping. - View Dependent Claims (15, 16, 17, 18)
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Specification