公开(公告)号：US20190081558A1

公开(公告)日：2019-03-14

申请号：US16039551

申请日：2018-07-19

Applicant: Khalifa University of Science and Technology

Inventor： Dima Kilani ,  Baker Mohammed ,  Mohammad Radwan Alhawari ,  Hani Hasan Mustafa Saleh ,  Mohammed Ismail Elnaggar

IPC: H02M3/07

Abstract: A switched capacitor DC-DC converter, which includes a pulse frequency modulation circuit, a multiplexing pulse-width modulation circuit, and a switched capacitive element, is disclosed. The switched capacitive element is coupled between the pulse frequency modulation circuit and the multiplexing pulse-width modulation circuit. The pulse frequency modulation circuit uses a DC source signal to charge the switched capacitive element. The pulse frequency modulation circuit provides a group of output signals by multiplexing the switched capacitive element and reduces reverse current to the switched capacitive element when updating each of the group of output signals.