Voltage-controlled oscillator

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United States of America Patent

PATENT NO 9425735
APP PUB NO 20150236644A1
SERIAL NO

14701175

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Abstract

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An apparatus is disclosed that includes a first cross-coupled transistor pair, a second cross-coupled transistor pair, at least one capacitance unit, and a first, second, third, and fourth inductive elements. The first cross-coupled transistor pair and second cross-coupled transistor pair are coupled to a pair of first output nodes and a pair of second output nodes, respectively. The at least one capacitance unit is coupled to at least one of the pair of first output nodes and the pair of second output nodes. The first and second inductive elements are electrically coupled to the first output nodes, respectively. The third inductive element is electrically coupled to one of the second output nodes and DC-biased and magnetically coupled to the first inductive element. The fourth inductive element is electrically coupled to the other of the second output nodes and DC-biased and magnetically coupled to the second inductive element.

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Patent Owner(s)

Patent OwnerAddress
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTDHSINCHU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Ho-Hsiang Hsinchu, TW 72 956
Jou, Chewn-Pu Hsinchu, TW 342 2019
Liao, Hsien-Yuan Hsinchu, TW 39 208
Lin, Chi-Hsien Taichung, TW 30 94
Lu, Ying-Ta Hsinchu, TW 54 312
Yen, Hsiao-Tsung Tainan, TW 234 1532

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