公开(公告)号：US20230078379A1

公开(公告)日：2023-03-16

申请号：US17942806

申请日：2022-09-12

Applicant: Hamilton Sundstrand Corporation

Inventor： Ponggorn KULSANGCHAROEN ,  Rodrigo FERNANDEZ-MATTOS ,  Jonathan ROADLEY-BATTIN

IPC: H02M1/08 ,  H02M7/5387

Abstract: A bootstrap gate driver charging circuit arranged to drive the gate of an upper switch (QU) and a lower switch (QL) connected in series to provide an AC output voltage (400) voltage by alternatively turning on and off according to a predetermined duty cycle of alternate upper switch turn-on and lower switch turn-on phases, the bootstrap gate driver charging circuit comprising: an input terminal; an output terminal; an H-bridge inverter with an inverter input and an inverter output; a charging path; and a bootstrap capacitor. The input inverter is electrically connected to the input terminal, the inverter output is electrically connected to a first end of the bootstrap capacitor, the charging path is electrically connected between a second end of the bootstrap capacitor and a gate driver supply voltage; wherein in response to the lower switch being turned ON and providing a path to ground with respect to the supply voltage.

公开(公告)号：US20230188012A1

公开(公告)日：2023-06-15

申请号：US18062368

申请日：2022-12-06

Applicant: Hamilton Sundstrand Corporation

Inventor： Jonathan ROADLEY-BATTIN ,  Andrew PAGE

IPC: H02K11/33 ,  H02K11/00 ,  H02K3/42

CPC classification number: H02K11/33 ,  H02K11/0094 ,  H02K3/42 ,  H02K2211/03 ,  H02K2203/03

Abstract: An electric motor includes a stator, a rotor, and a printed circuit board, pcb, mounted to an end of the motor. The motor end windings are provided as connections on the pcb. The motor further includes comprising RC load termination components on the pcb.

公开(公告)号：US20230188079A1

公开(公告)日：2023-06-15

申请号：US18062800

申请日：2022-12-07

Applicant: Hamilton Sundstrand Corporation

Inventor： Jonathan ROADLEY-BATTIN ,  Andrew PAGE

IPC: H02P29/024 ,  H02M1/12

CPC classification number: H02P29/0241 ,  H02M1/123

Abstract: An electric motor includes: a stator; a rotor; and a printed circuit board, pcb, mounted to an end of the motor, the motor end windings being provided as connections on the pcb. The motor further includes transient voltage suppression, TVS, components on the pcb.