公开(公告)号：US11513544B1

公开(公告)日：2022-11-29

申请号：US17537010

申请日：2021-11-29

Applicant: STMicroelectronics International N.V.

Inventor： Venkata Narayanan Srinivasan ,  Mayankkumar Hareshbhai Niranjani ,  Dhulipalla Phaneendra Kumar ,  Gourav Garg ,  Sourabh Banzal

IPC: G05F1/10 ,  G05F3/02 ,  G05F1/46 ,  H03K19/20

Abstract: An electric device includes: a first power domain; a second power domain; a third power domain, where during power-up, the third, the second, and the first power domains are configured to be powered up sequentially, where during standby-exit, the first, the second, and the third power domains are configured to be powered up sequentially; isolation paths that provide controlled signal transmission among the first, the second, and the third power domains, where each isolation path includes an isolation circuit between an input power domain and an output power domain of the isolation path; and a control circuit in the first power domain, where for each isolation path, the control circuit is configured to generate an isolation control signal for the isolation circuit, where the isolation circuit is configured enable or disable signal transmission along the isolation path.

公开(公告)号：US20230168699A1

公开(公告)日：2023-06-01

申请号：US17967498

申请日：2022-10-17

Applicant: STMicroelectronics International N.V.

Inventor： Venkata Narayanan Srinivasan ,  Mayankkumar Hareshbhai Niranjani ,  Dhulipalla Phaneendra Kumar ,  Gourav Garg ,  Sourabh Banzal

IPC: G05F1/46 ,  H03K19/20

CPC classification number: G05F1/46 ,  H03K19/20

Abstract: An electric device includes: a first power domain; a second power domain; a third power domain, where during power-up, the third, the second, and the first power domains are configured to be powered up sequentially, where during standby-exit, the first, the second, and the third power domains are configured to be powered up sequentially; isolation paths that provide controlled signal transmission among the first, the second, and the third power domains, where each isolation path includes an isolation circuit between an input power domain and an output power domain of the isolation path; and a control circuit in the first power domain, where for each isolation path, the control circuit is configured to generate an isolation control signal for the isolation circuit, where the isolation circuit is configured enable or disable signal transmission along the isolation path.

公开(公告)号：US11983025B2

公开(公告)日：2024-05-14

申请号：US17967498

申请日：2022-10-17

Applicant: STMicroelectronics International N.V.

Inventor： Venkata Narayanan Srinivasan ,  Mayankkumar Hareshbhai Niranjani ,  Dhulipalla Phaneendra Kumar ,  Gourav Garg ,  Sourabh Banzal

IPC: G05F1/10 ,  G05F1/46 ,  G05F3/02 ,  H03K19/20

CPC classification number: G05F1/46 ,  H03K19/20

Abstract: An electric device includes: a first power domain; a second power domain; a third power domain, where during power-up, the third, the second, and the first power domains are configured to be powered up sequentially, where during standby-exit, the first, the second, and the third power domains are configured to be powered up sequentially; isolation paths that provide controlled signal transmission among the first, the second, and the third power domains, where each isolation path includes an isolation circuit between an input power domain and an output power domain of the isolation path; and a control circuit in the first power domain, where for each isolation path, the control circuit is configured to generate an isolation control signal for the isolation circuit, where the isolation circuit is configured enable or disable signal transmission along the isolation path.