Electrically isolated power and data coupling system suitable for portable and other equipment
First Claim
1. A power coupling system for transferring power between a power source and a powered device separated by a physical and electrical isolation barrier, comprising:
- a power coupler including in a first device, a first section of a magnetic circuit including a first core section of magnetically permeable material of cross-sectional area substantially larger at an isolation barrier interface than within a first winding located on said first core section, said first section of magnetic circuit being suitable, in a docking mode, for positioning adjacent to a second section of magnetic circuit in a second device to form a completed magnetic circuit used to transfer power between said first and second device, said second section of magnetic circuit including a second core section with a second winding magnetically coupling with said first winding via said completed magnetic circuit in said docking mode for said power transfer.
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Accused Products
Abstract
An electrically isolated combined power and signal coupler is usable for a portable medical monitoring device attachable to a patient in a medical environment. A power coupling system transfers power between a power source and a powered device separated by a physical and electrical isolation barrier. The system comprises a power coupler including in a first device, a first section of a magnetic circuit including a first core section of magnetically permeable material of cross-sectional area substantially larger at an isolation barrier interface than within a first winding located on the first core section. The first section of magnetic circuit being suitable, in a docking mode, for positioning adjacent to a second section of magnetic circuit in a second device to form a completed magnetic circuit used to transfer power between said first and second device. The second section of magnetic circuit including a second core section with a second winding magnetically coupling with the first winding via the completed magnetic circuit in the docking mode for the power transfer. The first core section comprises at least one substantially planar core section at the isolation barrier interface for positioning adjacent to a corresponding substantially planar core section of said second section of magnetic circuit at the isolation barrier interface to form the completed magnetic circuit without a device containing the second section of magnetic circuit enveloping a significant portion of the substantially planar core section.
113 Citations
13 Claims
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1. A power coupling system for transferring power between a power source and a powered device separated by a physical and electrical isolation barrier, comprising:
a power coupler including in a first device, a first section of a magnetic circuit including a first core section of magnetically permeable material of cross-sectional area substantially larger at an isolation barrier interface than within a first winding located on said first core section, said first section of magnetic circuit being suitable, in a docking mode, for positioning adjacent to a second section of magnetic circuit in a second device to form a completed magnetic circuit used to transfer power between said first and second device, said second section of magnetic circuit including a second core section with a second winding magnetically coupling with said first winding via said completed magnetic circuit in said docking mode for said power transfer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A portable device for transferring power and data between a power source and a powered device separated by a physical and electrical isolation barrier, comprising:
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a power coupler including in a first device, a first section of a magnetic circuit including a first core section of magnetically permeable material of cross-sectional area substantially larger at an isolation barrier interface than within a first winding located on said first core section, said first section of magnetic circuit being suitable, in a docking mode, for positioning adjacent to a second section of magnetic circuit in a second device to form a completed magnetic circuit used to transfer power between said first and second device, said second section of magnetic circuit including a second core section with a second winding magnetically coupling with said first winding via said completed magnetic circuit in said docking mode for said power transfer; and
an electrically isolated data transducer supporting connection of said first device to a network and to bidirectionally exchange data in said docking mode. - View Dependent Claims (12, 13)
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Specification