公开(公告)号：US12292753B2

公开(公告)日：2025-05-06

申请号：US17782562

申请日：2020-12-04

Applicant: Khalifa University of Science and Technology

Inventor： Baker Mohammad ,  Dima Kilani ,  Hani Saleh

IPC: G05F1/59 ,  G05F1/46 ,  G05F1/575 ,  H03K19/094

Abstract: Digital logic voltage regulators and related methods generate a regulated voltage via controlled switching of a power transistor. A digital logic voltage regulator includes a voltage level comparator, a power transistor, and a charge accumulator. The voltage level comparator generates a digital control signal that alternates between a first voltage level and a second voltage level in response to changes in relative voltage level between the regulated output voltage and the target voltage. The digital control signal causes the power transistor to switch from off to on in response to a reduction of the regulated output voltage relative to the target voltage and causes the power transistor to switch from on to off in response to an increase of the regulated output voltage relative to the target voltage. The charge accumulator decreases variation in the regulated output voltage that would occur without the charge accumulator.

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.

公开(公告)号：US10651730B2

公开(公告)日：2020-05-12

申请号：US16039551

申请日：2018-07-19

Applicant: Khalifa University of Science and Technology

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

IPC: H02M3/07 ,  H02M1/00

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.