公开(公告)号：US20230188035A1

公开(公告)日：2023-06-15

申请号：US17644521

申请日：2021-12-15

Applicant: Apple Inc.

Inventor： Jonathan F. Bolus ,  Alberto Alessandro Angelo Puggelli ,  Fabio Gozzini ,  Hao Zhou

IPC: H02M3/158 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M1/0009

Abstract: A power converter is disclosed. The power converter includes a switching circuit configured to source current to a switch node that is coupled, via an inductor, to a regulated power supply node. A DC resistance sensing circuit includes a first filter and a second filters. The first filter circuit is configured to filter a voltage level of a first terminal of the inductor to generate a first filtered signal, while the second filter circuit is configured to filter a voltage level of a second terminal of the inductor to generate a second filtered signal. A control circuit is configured to adjust the operation of the switching circuit using a voltage level of the regulated power supply node, the first filtered signal, and the second filtered signal.

公开(公告)号：US20220308606A1

公开(公告)日：2022-09-29

申请号：US17211527

申请日：2021-03-24

Applicant: Apple Inc.

Inventor： Shawn Searles ,  Fabio Gozzini ,  Sanjay Pant ,  Inder M. Sodhi

IPC: G05F1/46 ,  G06F1/26 ,  G01R15/14

Abstract: A power converter circuit included in a computer system may include a phase circuit and a sample circuit. The phase circuit compares a voltage level of the regulated power supply node to a reference voltage to generate a demand current that is used to adjust the voltage level of the regulated power supply node. The phase circuit also digitizes the demand current and stores the resultant bit stream in a memory circuit. The sample circuit generates timestamp information that points to particular storage locations in the memory circuit that correspond to trigger events, allowing the operation of the power converter circuit to be analyzed during different circumstances as well as to adjust operating parameters of the power converter circuit.

公开(公告)号：US11387733B2

公开(公告)日：2022-07-12

申请号：US17031764

申请日：2020-09-24

Applicant: Apple Inc.

Inventor： Shawn Searles ,  Fabio Gozzini

IPC: H02M1/36 ,  H02M3/158 ,  H02M1/32

Abstract: A method and apparatus for rapid discharge of power rails is disclosed. A circuit includes a power converter circuit includes an inductor coupled between a switch node and regulated power supply node. A first device is coupled between an input power supply node and the switch node, while a second device is coupled between the switch node and a ground node. The power converter is configured to generate a particular voltage level on the regulated power supply node by controlling the first and second devices. The circuit also includes a control circuit which, in response to receiving a discharge comment, repeatedly activates and deactivates the second device to discharge, via the switch node and the inductor, the regulated power supply node.

公开(公告)号：US20210273565A1

公开(公告)日：2021-09-02

申请号：US17201712

申请日：2021-03-15

Applicant: Apple Inc.

Inventor： Sanjay Pant ,  Fabio Gozzini ,  Hubert Attah ,  Jonathan F. Bolus ,  Wenxun Huang

IPC: H02M3/158 ,  H02M3/157 ,  G06F1/3203 ,  H03M1/12

Abstract: A voltage regulator circuit included in a computer system may include multiple phase circuits each coupled to a regulated power supply node via a corresponding inductor. The phase circuits may modify a voltage level of the regulated power supply node using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits.

公开(公告)号：US10951118B2

公开(公告)日：2021-03-16

申请号：US16877260

申请日：2020-05-18

Applicant: Apple Inc.

Inventor： Sanjay Pant ,  Fabio Gozzini ,  Hubert Attah ,  Jonathan F. Bolus ,  Wenxun Huang

IPC: H02M3/158 ,  H02M1/12 ,  H02M3/157 ,  G06F1/3203 ,  H03M1/12

Abstract: A voltage regulator circuit included in a computer system may include multiple phase circuits each coupled to a regulated power supply node via a corresponding inductor. The phase circuits may modify a voltage level of the regulated power supply node using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits.

公开(公告)号：US10658931B1

公开(公告)日：2020-05-19

申请号：US16387316

申请日：2019-04-17

Applicant: Apple Inc.

Inventor： Sanjay Pant ,  Fabio Gozzini ,  Hubert Attah ,  Jonathan F. Bolus ,  Wenxun Huang

IPC: H02M3/158 ,  H02M1/12 ,  H02M3/157 ,  G06F1/3203 ,  H03M1/12

Abstract: A voltage regulator circuit included in a computer system may include multiple phase circuits each coupled to a regulated power supply node via a corresponding inductor. The phase circuits may modify a voltage level of the regulated power supply node using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits.

公开(公告)号：US20190140539A1

公开(公告)日：2019-05-09

申请号：US16180782

申请日：2018-11-05

Applicant: Apple Inc.

Inventor： Sanjay Pant ,  Fabio Gozzini ,  Jay B. Fletcher ,  Shawn Searles

IPC: H02M3/158 ,  H02M1/08

Abstract: A system that includes a regulator unit is disclosed. The regulator unit includes first and second phase units whose outputs are coupled to through first and second coupled inductors, respectively, to a power supply node of a circuit block. The first phase unit may be configured to discharge, for a first period of time, the power supply node through the first inductor in response to determining a sense current is greater than a demand current. The operation of the second phase unit may follow that of the first phase unit after a second period of time has elapsed.

公开(公告)号：US10122275B2

公开(公告)日：2018-11-06

申请号：US15403255

申请日：2017-01-11

Applicant: Apple Inc.

Inventor： Sanjay Pant ,  Fabio Gozzini ,  Jay B. Fletcher ,  Shawn Searles

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00

Abstract: A system that includes a regulator unit is disclosed. The regulator unit includes first and second phase units whose outputs are coupled to through first and second coupled inductors, respectively, to a power supply node of a circuit block. The first phase unit may be configured to discharge, for a first period of time, the power supply node through the first inductor in response to determining a sense current is greater than a demand current. The operation of the second phase unit may follow that of the first phase unit after a second period of time has elapsed.