公开(公告)号：US20230086364A1

公开(公告)日：2023-03-23

申请号：US17934648

申请日：2022-09-23

Applicant: Apple Inc.

Inventor： Alberto Alessandro Angelo Puggelli ,  Hubert Attah ,  Hao Zhou ,  Shawn Searles

IPC: H02M3/158 ,  H02M1/00

Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.

公开(公告)号：US11456670B2

公开(公告)日：2022-09-27

申请号：US16791773

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Alberto Alessandro Angelo Puggelli ,  Hubert Attah ,  Hao Zhou ,  Shawn Searles

IPC: H02M3/158 ,  H02M1/00

Abstract: An apparatus includes a control circuit and a voltage regulator circuit coupled to a regulated power supply node. The voltage regulator circuit is configured to generate a power signal on the regulated power supply node using a reference voltage level. The apparatus further includes a control circuit that is configured to determine an operating mode using results of a comparison of a threshold value and a load current being drawn from the regulated power supply node by a load circuit. The control circuit may be further configured to set, in a first operating mode, the reference voltage level independently of the load current, and set, in a second operating mode, the reference voltage level using the load current.

公开(公告)号：US20220107680A1

公开(公告)日：2022-04-07

申请号：US17499723

申请日：2021-10-12

Applicant: Apple Inc.

Inventor： Jay B. Fletcher ,  Karthik Manickam ,  Bo Yang ,  Vincent R. von Kaenel ,  Shawn Searles ,  Hubert Attah ,  Nir Dahan ,  Olivier Girard

IPC: G06F1/3296 ,  G01R31/28 ,  G06F1/3206

Abstract: A voltage regulator circuit included in a computer system may generate a voltage level on a power supply signal using a source power supply signal and based initial values of one or more operation parameters derived from wafer-level test data. One or more operation characteristics of the voltage regulator circuit may be sampled, by a measurement circuit, at multiple time points to generated measurement data. A control circuit may adapt operation of the voltage regulator circuit based on the measurement data.

公开(公告)号：US11144110B2

公开(公告)日：2021-10-12

申请号：US16039842

申请日：2018-07-19

Applicant: Apple Inc.

Inventor： Jay B. Fletcher ,  Karthik Manickam ,  Bo Yang ,  Vincent R. von Kaenel ,  Shawn Searles ,  Hubert Attah ,  Nir Dahan ,  Olivier Girard

IPC: G06F1/32 ,  G06F1/3296 ,  G01R31/28 ,  G06F1/3206

Abstract: A voltage regulator circuit included in a computer system may generate a voltage level on a power supply signal using a source power supply signal and based initial values of one or more operation parameters derived from wafer-level test data. One or more operation characteristics of the voltage regulator circuit may be sampled, by a measurement circuit, at multiple time points to generated measurement data. A control circuit may adapt operation of the voltage regulator circuit based on the measurement data.