Efficient termination for wound capacitors
AssigneeIntel Corporation
InventorsSteve Schiveley, Mike Greenwood, Tao Liu, Peir Chu, Aaron Steyskal
Life of this patent
Estimating the term…
Abstract
A termination assembly for a capacitor provides controlled ESR and ESL. First and second termination elements are attached to first and second foils to provide terminal connections. The first and second foils are wound into a cylinder such that the first and second termination elements form a shape within the cylinder and are spaced apart by a first distance. First and second leads are extending from the termination elements, respectively, such that the first and second leads are spaced apart by a second distance different from the first distance.
Claims30
A termination assembly comprising:
- first and second termination elements attached to first and second foils to provide terminal connections, the first and second foils being wound into a cylinder such that the first and second termination elements form a shape within the cylinder and are spaced apart by a first distance at a first end and second distance at a second end, the first and second distances being different, the shape being one of an L-shape, a rectangle, a crescent, a diagonal shape, a stairstep, a funnel, a single step, and a banana shape;
- and
- first and second leads extending from the termination elements, respectively, such that the first and second leads are spaced apart by a third distance different from one of the first and second distances.
A method comprising:
- attaching first and second termination elements to first and second foils to provide terminal connections, the first and second foils being wound into a cylinder such that the first and second termination elements form a shape at center of the cylinder and are spaced apart by a first distance at a first end and a second distance at a second end, the first and second distances being different, the shape being one of an L-shape, a rectangle, a crescent, a diagonal shape, a stairstep, a funnel, a single step, and a banana shape;
- and
- providing first and second leads extending from the termination elements, respectively, such that the first and second leads are spaced apart by a third distance different from one of the first and second distances.
A capacitor comprising:
- first and second foils to provide electrodes;
- a dielectric material between the first and second foils to separate the first and second foils;
- and
- a termination assembly comprising:
- first and second termination elements attached to the first and second foils to provide terminal connections, the first and second foils being wound into a cylinder such that the first and second termination elements form a shape at center of the cylinder and are spaced apart by a first distance at a first end and a second distance at a second end, the first and second distances being different, the shape being one of an L-shape, a rectangle, a crescent, a diagonal shape, a stairstep, a funnel, a single step, and a banana shape, and first and second leads extending from the termination elements, respectively, such that the first and second leads are spaced apart by a third distance different from one of the first and second distances.
Dependencies are inferred from the claim text.