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US Patent 11309884 Switching circuits having drain connected ferrite beads

Patent 11309884 was granted and assigned to Transphorm on April, 2022 by the United States Patent and Trademark Office.

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Contents

Is a
Patent
Patent
0

Patent attributes

Patent Applicant
Transphorm
Transphorm
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Current Assignee
Transphorm
Transphorm
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
113098840
Patent Inventor Names
Zhan Wang0
Yifeng Wu0
Jason Cuadra0
Date of Patent
April 19, 2022
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Patent Application Number
171381010
Date Filed
December 30, 2020
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Patent Citations
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US Patent 10043896 III-Nitride transistor including a III-N depleting layer
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US Patent 10063138 Bridgeless power factor correction circuits
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US Patent 10630285 Switching circuits having drain connected ferrite beads
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US Patent 10897249 Switching circuits having drain connected ferrite beads
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US Patent 10043898 Enhancement-mode III-nitride devices
Patent Primary Examiner
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Patrick O Neill
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CPC Code
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H03K 17/687
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H03K 17/6871
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H03K 17/6874
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H03K 2217/0063
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H03K 17/102
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H03K 17/04106
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H03K 17/041
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H03K 17/04
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...

A circuit includes an electronic component package that comprises a first lead, a second lead, and a third lead; and a III-N transistor encased in the electronic component package, the III-N transistor including a drain, a gate, and a source, where the source is coupled to the first lead, the gate is coupled to the second lead, and the drain is coupled to the third lead. The circuit includes a high voltage node and a resistor, the resistor having a first terminal coupled to the high voltage node and a second terminal coupled to the third lead. The circuit further includes a ferrite bead connected in parallel to the resistor and coupled between the third lead and the high voltage node. When switching, the deleterious effects of a parasitic inductance of the circuit's power loop are mitigated by the ferrite bead and the resistor.

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