Charge pump with voltage tracking

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United States of America Patent

PATENT NO 11336288
SERIAL NO

17315337

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Abstract

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An apparatus is disclosed for a charge pump with voltage tracking. In an example aspect, the apparatus includes a locked loop having a charge pump, a filter, a second switch, and a buffer. The charge pump includes a first current source, a second current source, and a first switch coupled between the first current source and the second current source. The filter is coupled to the charge pump between the first switch and the second current source. The second switch is coupled to the charge pump between the first current source and the first switch. The buffer is coupled between the filter and the second switch, with the buffer comprising a voltage buffer.

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Patent Owner(s)

  • QUALCOMM INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pai, Hung-Chuan Irvine, US 13 97
Zanuso, Marco Encinitas, US 17 109

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