Apparatus and method for resonance reduction
AssigneeIntel Corporation
InventorsMingwei Huang, Cangsang Zhao
Life of this patent
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Abstract
A system is provided that includes a power distribution network to provide a switching current and a resonance reduction circuit to sense the switching current within a frequency range and to generate a resonance reduction signal having a current component at substantially a same frequency and substantially 180 degrees out of phase from the sensed switching current. The power distribution network may combine the switching current with the resonance reduction signal to provide a total switching current that may be provided to a processor as the powering signal.
Claims34
A circuit comprising:
- a first portion to sense a signal within a frequency range;
- and
- a second portion to generate a signal having a current component at substantially a same frequency and substantially 180 degrees out of phase from the sensed signal;
- and
- a combining circuit to provide a total switching signal to power a device by combining a switching signal corresponding with the sensed signal and the signal having the current component.
A system comprising:
- a power distribution network to provide a switching current;
- a resonance reduction circuit to sense the switching current within a frequency range and to generate a resonance reduction signal having a current component at substantially a same frequency and substantially 180 degrees out of phase from the sensed switching current;
- and
- wherein the power distribution network provides a total switching current to power a device by combining the switching current and the resonance reduction signal.
A system comprising:
- a circuit to generate a resonance reduction signal having a current component at substantially a same frequency and out of phase from a switching signal;
- and
- a power distribution network to provide the switching signal and to provide a total switching current to power a device by combining the switching current and the resonance reduction signal.
A method comprising:
- sensing a switching signal within a frequency range;
- generating a resonance reduction signal having a current component at substantially a same frequency and substantially 180 degrees out of phase from the sensed switching signal;
- and
- powering a device using a power signal, the power signal combining the switching signal and the resonance reduction signal.
Dependencies are inferred from the claim text.