Filtering module and power supply device
First Claim
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1. A filtering module comprising:
- a first inductor comprising a magnetic core, wherein a recess formed on the magnetic core makes a magnetic resistance of the magnetic core be varied by varying a magnetic flux path at different currents into the magnetic core, thereby a first inductance of the first inductor is varied; and
a first capacitor electrically connected to the first inductor,wherein a filtering bandwidth of the filtering module is varied by varying the current into the filtering module.
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Abstract
A filtering module includes a first inductor and a first capacitor. The first inductor has a first inductance varied by varying the current into the first inductor. The first capacitor is electrically connected to the first inductor. The filtering bandwidth of the filtering module is varied by varying the current into the filtering module.
9 Citations
15 Claims
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1. A filtering module comprising:
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a first inductor comprising a magnetic core, wherein a recess formed on the magnetic core makes a magnetic resistance of the magnetic core be varied by varying a magnetic flux path at different currents into the magnetic core, thereby a first inductance of the first inductor is varied; and a first capacitor electrically connected to the first inductor, wherein a filtering bandwidth of the filtering module is varied by varying the current into the filtering module. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power supply device having an input terminal comprising:
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a power conversion module; and a filtering module electrically connected to the power conversion module, the filtering module comprising; a first inductor comprising a magnetic core, wherein a recess formed on the magnetic core makes a magnetic resistance of the magnetic core be varied by varying a magnetic flux path at different currents into the magnetic core, thereby a first inductance of the first inductor is varied; and a first capacitor electrically connected to the first inductor, wherein a filtering bandwidth of the filtering module is varied by varying the current into the filtering module. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification