公开(公告)号：US20230312084A1

公开(公告)日：2023-10-05

申请号：US17657857

申请日：2022-04-04

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Jiri Holy ,  Petr Hanus ,  Ondrej Kotaba ,  Ondrej Mandel

IPC: B64C13/50 ,  H02M3/158 ,  H02P29/40 ,  H02P27/06 ,  H02P5/74

CPC classification number: B64C13/50 ,  H02M3/1582 ,  H02P29/40 ,  H02P27/06 ,  H02P5/74

Abstract: An aircraft electromechanical actuator control system for an aircraft having a direct current (DC) voltage bus includes an actuator controller that is coupled to receive a first DC voltage from the aircraft DC voltage bus, where the first DC voltage has a first voltage magnitude. The actuator controller selectively supplies AC voltage to an electromechanical actuator and includes a bidirectional DC/DC converter, an inverter, and actuator control logic. The bidirectional DC/DC converter receives the first DC voltage and supplies a second DC voltage having a second voltage magnitude that is less than the first voltage magnitude. The inverter receives the second DC voltage converts it to the AC voltage. The actuator control logic receives actuator commands and supplies inverter control signals to the inverter.

公开(公告)号：US20240348169A1

公开(公告)日：2024-10-17

申请号：US18300735

申请日：2023-04-14

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Pavel Studnicka ,  Petr Spanel ,  Ondrej Kotaba ,  Jiri Holy

IPC: H02M3/335 ,  H02M1/00 ,  H03K17/691

CPC classification number: H02M3/33523 ,  H02M1/0006 ,  H03K17/691 ,  H03K2217/0063 ,  H03K2217/0072

Abstract: A DC-DC converter circuit includes a high-side transistor, a low side transistor, a gate driver power supply, a converter control, and a capacitance divider network. The high-side transistor includes a high-side drain terminal, a high-side source terminal, and a high-side gate terminal. The high-side drain terminal is coupled to a positive DC supply terminal. The gate driver power supply is electrically isolated from the high-side transistor and the low-side transistor. The converter control is configured to supply high-side control commands and low-side control commands to the high-side transistor and the low-side transistor, respectively. The capacitance divider network includes a first capacitor and a second capacitor. The first capacitor is electrically connected in series, at a DC-link midpoint node, to the second capacitor. The DC-link midpoint node, the gate driver power supply, and the converter control are all electrically connected to, and share, a local electrical ground.