公开(公告)号：US10254823B2

公开(公告)日：2019-04-09

申请号：US15471865

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Alain Artieri ,  Jean-Marie Tran

IPC: G06F1/00 ,  G06F1/3296 ,  G06F1/324 ,  H03K5/156 ,  G06F1/18

Abstract: An integrated circuit (IC) is disclosed herein for power management using duty cycles. In an example aspect, the integrated circuit includes multiple power domains, each of which includes a respective power state controller. The power state controller acts as a bridge between global supply lines of the integrated circuit and local supply lines of the respective power domain. Global supply lines can include a first global power rail, a second global power rail, and a global clock tree. Local supply lines can include a local power rail and a local clock tree. In operation, a power state controller adjusts a power state of the respective power domain in accordance with a duty cycle. A timeslot corresponding to the duty cycle can be separated into multiple time periods with durations of the time periods being based on the duty cycle.

公开(公告)号：US20180284878A1

公开(公告)日：2018-10-04

申请号：US15471865

申请日：2017-03-28

Applicant: QUALCOMM Incorporated

Inventor： Alain Artieri ,  Jean-Marie Tran

IPC: G06F1/32 ,  H03K5/156

CPC classification number: G06F1/3296 ,  G06F1/189 ,  G06F1/324 ,  H03K5/1565 ,  Y02D10/126 ,  Y02D10/172

Abstract: An integrated circuit (IC) is disclosed herein for power management using duty cycles. In an example aspect, the integrated circuit includes multiple power domains, each of which includes a respective power state controller. The power state controller acts as a bridge between global supply lines of the integrated circuit and local supply lines of the respective power domain. Global supply lines can include a first global power rail, a second global power rail, and a global clock tree. Local supply lines can include a local power rail and a local clock tree. In operation, a power state controller adjusts a power state of the respective power domain in accordance with a duty cycle. A timeslot corresponding to the duty cycle can be separated into multiple time periods with durations of the time periods being based on the duty cycle.