Current sensing devices and methods
First Claim
1. A current sensing inductive device, comprising:
- a plurality of bobbin elements, each element having one or more terminals with a conductive winding wound thereon; and
a printed circuit board with an aperture existing therein;
wherein said plurality of bobbin elements are disposed about said aperture and are electrically coupled to one another via said printed circuit board; and
wherein at least two of said plurality of bobbin elements are physically coupled to one another via a hinged coupling.
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Accused Products
Abstract
A low-cost and high-precision current sensing device and methods for use and manufacturing. In one embodiment, the current sensing apparatus comprises a Rogowski-type coil which is manufactured in segments so as to facilitate the manufacturing process. In an exemplary embodiment, the current sensing apparatus segments comprise a number of bobbin elements that are wound and subsequently formed into complex geometric shapes such as torus-like shapes. In an alternative embodiment, bonded windings are utilized which allow the segments to be formed without a bobbin or former. In yet another alternative embodiment, the aforementioned current sensing devices are stacked in groups of two or more. Methods of manufacturing and using the aforementioned current sensing apparatus are also disclosed.
76 Citations
21 Claims
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1. A current sensing inductive device, comprising:
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a plurality of bobbin elements, each element having one or more terminals with a conductive winding wound thereon; and a printed circuit board with an aperture existing therein; wherein said plurality of bobbin elements are disposed about said aperture and are electrically coupled to one another via said printed circuit board; and wherein at least two of said plurality of bobbin elements are physically coupled to one another via a hinged coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A current sensing inductive device, comprising:
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a plurality of linearly wound inductive elements, each element comprising; a pair of flanges; a winding channel disposed between said pair of flanges; a plurality of layers of conductive winding disposed in said winding channel; and one or more hinge features; and a housing comprising a conductor receiving aperture; wherein said plurality of linearly wound inductive elements are collectively disposed about said conductor receiving aperture in a substantially alternating or zigzag fashion. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A current sensing inductive device, comprising:
a plurality of wound bobbin elements comprising a start and a finish bobbin element, the windings on the plurality of wound bobbin elements configured such that the start and the finish bobbin elements form a non-closed loop around a conductor, each of the plurality of wound bobbin elements being connected via one or more hinge features to an adjacently disposed wound bobbin element. - View Dependent Claims (17, 18, 19, 20, 21)
Specification