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Pat. 10277122 United States, Int. Cl.22 H03K 21/08, H02M 3/07, H03L 7/06, H03L 7/093, H03L 7/099. Charge pump circuit and phase locked loop system using the same : Appl. N 16/116078 : Filed 29.08.2018 : Pub. 30.04.2019 : / Shih-Hsing Wang, Chung-Chih Hung ; Assignee National Chiao Tung University Nctu ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10277122/en?oq=US10277122.html (дата обращения: ДД.ММ.ГГГГ).