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US 2006/0077018 A1Published application
Filter having parasitic inductance cancellation
AssigneeMassachusetts Institute of Technology
InventorsDavid Perreault, Timothy Neugebauer, Joshua Phinney
Life of this patent
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Abstract
An electrical component includes a capacitive impedance and a shunt path inductance cancellation feature provided by coupled windings. A filter having a capacitor with capacitor-path inductance cancellation provides enhanced performance over frequency compared with conventional capacitors.
Claims20
A method of fabricating an electrical filter component, comprising:
- patterning a conductor to create discrete magnetically-coupled windings;
- and
- electrically coupling the discrete magnetically-coupled windings to a capacitor having first and second terminals such that magnetic induction of the magnetically-coupled windings provides capacitor-path inductance cancellation,
- wherein induction of the windings generates a voltage that counteracts a voltage due to equivalent series inductance of the capacitor and does not counteract a voltage due to the capacitance of the capacitor.
1 more element
A method of fabricating an electrical component, comprising:
- forming patterned windings from a conductor to create a coreless transformer having magnetically-coupled windings;
- and
- coupling the transformer to a discrete capacitor such that magnetic induction of the magnetically-coupled windings provides capacitor-path inductance cancellation,
- wherein induction of the windings generates a voltage that counteracts a voltage due to equivalent series inductance of the capacitor and does not counteract a voltage due to the capacitance of the capacitor.
1 more element
A method of suppressing electrical signals, comprising:
- patterning a conductor to create discrete magnetically-coupled windings;
- and
- electrically coupling the discrete magnetically-coupled windings to a capacitor having first and second terminals such that magnetic induction of the magnetically-coupled windings provides capacitor-path inductance cancellation to suppress the electrical signals,
- wherein induction of the windings generates a voltage that counteracts a voltage due to equivalent series inductance of the capacitor and does not counteract a voltage due to the capacitance of the capacitor.
1 more element
Dependencies are inferred from the claim text.