Claims
- 1. A method for blocking a portion of energy of a signal in a power line, comprising:
equipping a high frequency magnetic core with a coil; connecting a capacitor across terminals of said coil to create a resonant circuit that resonates at a frequency of said signal; and placing said magnetic core around said power line at a location where said blocking is desired.
- 2. The method of claim 1, wherein said core includes an air gap.
- 3. The method of claim 1,
wherein said resonant circuit is a first resonant circuit having a first frequency band blocking characteristic, and wherein said method further comprises performing said equipping, said connecting and said placing to provide a second resonant circuit tuned to a different frequency than said first resonant circuit to create a second frequency band blocking characteristic that is wider than said first frequency band blocking characteristic.
- 4. An apparatus for blocking a portion of energy of a signal in a power line, comprising:
a high frequency magnetic core with a coil; and a capacitor connected across terminals of said coil to create a resonant circuit that resonates at a frequency of said signal, wherein said magnetic core is placed around said power line at a location where said blocking is desired.
- 5. The apparatus of claim 4, wherein said core includes an air gap.
- 6. The apparatus of claim 4,
wherein said magnetic core is a first magnetic core, said coil is a first coil, and said capacitor is a first capacitor, wherein said resonant circuit is a first resonant circuit having a first frequency band blocking characteristic, and wherein said apparatus further comprises:
a second high frequency magnetic core with a second coil; and a second capacitor connected across terminals of said second coil to provide a second resonant circuit tuned to a different frequency than said first resonant circuit to create a second frequency band blocking characteristic that is wider than said first frequency band blocking characteristic.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is claiming priority of U.S. Provisional Patent Application Serial No. 60/419,174, filed on Oct. 17, 2002, the content of which is herein incorporated by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60419174 |
Oct 2002 |
US |