公开(公告)号：US12170478B2

公开(公告)日：2024-12-17

申请号：US17820168

申请日：2022-08-16

Applicant: Apple Inc.

Inventor： Alexander B. Uan-Zo-li ,  Shuai Jiang ,  Jamie L Langlinais ,  Per H. Hammarlund ,  Hans L Yeager ,  Victor Zyuban ,  Sung J. Kim ,  Wei Xu ,  Rohan U. Mandrekar ,  Sambasivan Narayan ,  Mohamed H. Abu-Rahma ,  Jaroslav Raszka ,  Robert O. Bruckner

IPC: H02M1/00

Abstract: A power delivery sub-system included in a computer system employs a primary voltage regulator circuit that generates a primary supply voltage on a primary power supply node. The power delivery sub-system also includes multiple bypass voltage regulator circuits that source corresponding bypass currents to a local power supply nodes in an integrated circuit. The integrated circuit includes multiple circuit blocks coupled to corresponding ones of the local power supply nodes, and multiple local voltage regulator circuits coupled to the primary power supply node. When a voltage level of a given local power supply node drops below a threshold value, a corresponding local voltage regulator circuit sources a supply current to the given local power supply node.

公开(公告)号：US11709512B2

公开(公告)日：2023-07-25

申请号：US17572664

申请日：2022-01-11

Applicant: Apple Inc.

Inventor： Doron Rajwan ,  Craig S Forbell ,  Jamie L Langlinais

IPC: G05F1/62 ,  G05F1/46

CPC classification number: G05F1/46

Abstract: An apparatus includes hardware circuits, a front-end power supply, voltage regulators, and control circuitry. The front-end power supply generates electrical power for the hardware circuits. The front-end power supply includes power stages that generate portions of electrical power and are activated and deactivated independently. The voltage regulators are connected to an output of the front-end power supply and provide adjustable operating voltages to the hardware circuits. The control circuitry controls the voltage regulators to supply the adjustable operating voltages responsively to requests from the hardware circuits, compares the adjustable operating voltages to settings that are specified as safe for provisioning by a predefined partial number of the power stages of the front-end power supply, and adaptively activates and deactivates the power stages, including ensuring that a number of active power stages is set to the predefined partial number only while the operating voltages match the safe settings.

公开(公告)号：US20230077747A1

公开(公告)日：2023-03-16

申请号：US17572664

申请日：2022-01-11

Applicant: Apple Inc.

Inventor： Doron Rajwan ,  Craig S Forbell ,  Jamie L Langlinais

IPC: G05F1/46

Abstract: An apparatus includes hardware circuits, a front-end power supply, voltage regulators, and control circuitry. The front-end power supply generates electrical power for the hardware circuits. The front-end power supply includes power stages that generate portions of electrical power and are activated and deactivated independently. The voltage regulators are connected to an output of the front-end power supply and provide adjustable operating voltages to the hardware circuits. The control circuitry controls the voltage regulators to supply the adjustable operating voltages responsively to requests from the hardware circuits, compares the adjustable operating voltages to settings that are specified as safe for provisioning by a predefined partial number of the power stages of the front-end power supply, and adaptively activates and deactivates the power stages, including ensuring that a number of active power stages is set to the predefined partial number only while the operating voltages match the safe settings.