公开(公告)号：US20230246550A1

公开(公告)日：2023-08-03

申请号：US18155407

申请日：2023-01-17

Applicant: STMicroelectronics S.r.l.

Inventor： Ranieri Guerra ,  Leandro Grasso ,  Serena Angela Versace ,  Francesca Giacoma Mignemi ,  Nunzio Greco

IPC: H02M3/158 ,  H02M1/08 ,  H02M3/157

CPC classification number: H02M3/1582 ,  H02M1/08 ,  H02M3/157

Abstract: In accordance with an embodiment, a method of operating a buck-boost power supply includes operating the buck-boost power supply in a buck mode by providing a PWM signal to a first half-bridge circuit, and turning on a charge transfer switch coupled between a first boosted supply node of a second driver circuit coupled to the first half-bridge circuit and a second boosted supply node of a second driver circuit coupled to a second half-bridge circuit when a voltage between the second boosted supply node and an output of the second half-bridge circuit is below a first threshold; and operating the buck-boost power supply in a boost mode by providing a PWM signal to the second half-bridge circuit, and turning on the charge transfer switch when the voltage between the first boosted supply node and an output of the first half-bridge circuit is below a second threshold.

公开(公告)号：US12032460B2

公开(公告)日：2024-07-09

申请号：US17670055

申请日：2022-02-11

Applicant: STMicroelectronics S.r.l.

Inventor： Enea Dimroci ,  Francesca Giacoma Mignemi ,  Roberta Priolo ,  Marco Leo ,  Francesco Battini

IPC: G06F11/273 ,  G06F11/26

CPC classification number: G06F11/26 ,  G06F11/273

Abstract: A method to test an asynchronous finite state machine for faults, the method including disabling state transitions out of a state of the asynchronous finite state machine and inputting test data to the AFSM to trigger a transition from the state to an expected state. The method further including enabling transitions out of the state of the asynchronous finite state machine, and determining whether the asynchronous finite state machine has performed a successful transition to the expected state.

公开(公告)号：US20230259433A1

公开(公告)日：2023-08-17

申请号：US17670055

申请日：2022-02-11

Applicant: STMicroelectronics S.r.l.

Inventor： Enea Dimroci ,  Francesca Giacoma Mignemi ,  Roberta Priolo ,  Marco Leo ,  Francesco Battini

IPC: G06F11/26

CPC classification number: G06F11/26

Abstract: A method to test an asynchronous finite state machine for faults, the method including disabling state transitions out of a state of the asynchronous finite state machine and inputting test data to the AFSM to trigger a transition from the state to an expected state. The method further including enabling transitions out of the state of the asynchronous finite state machine, and determining whether the asynchronous finite state machine has performed a successful transition to the expected state.