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Pat. 10128765 United States, Int. Cl.22 H02M 3/335, H02M 1/00, H03K 5/1534, H03K 7/08, H03K 9/08. Multi-stage power converter using pulse width modulator to convert sampled second-stage power parameters into digital pulse width modulation signals and control method thereof : Appl. N 15/490144 : Filed 18.04.2017 : Pub. 13.11.2018 : / Hao Sun, Yueyong Meng, Lei Chang, Jinfa Zhang ; Assignee Delta Electronics Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10128765/en?oq=US10128765.html (дата обращения: ДД.ММ.ГГГГ).