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Pat. 11218152 United States, Int. Cl.22 H03L 7/08, H02M 3/07, H03L 7/089, H03L 7/091, H03L 7/093, H03L 7/099. Charge pump circuit and phase-locked loop : Appl. N 16/476391 : Filed 05.02.2018 : Pub. 04.01.2022 : / Qing Ding, Haifeng Zhou, Guangsheng Wu, Xiaocong Li ; Assignee China Communication Technology Co Ltd, China Communication Microelectronics Technology Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11218152/en?oq=US11218152.html (дата обращения: ДД.ММ.ГГГГ).