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公开(公告)号：US20240235391A1
公开(公告)日：2024-07-11
申请号：US18153057
申请日：2023-01-11
Applicant: Apple Inc.
Inventor： Victor Zyuban , Jay B. Fletcher , Hao Zhou
IPC: H02M3/158
CPC classification number: H02M3/158
Abstract: A power management circuit for computer systems includes a power converter circuit that generates different voltage levels at different time periods. Multiple voltage regulator circuits are coupled to the output of the power converter circuit and to respective local power supply nodes. Switch devices are used to bypass the voltage regulator circuits during corresponding ones of the different time periods.
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公开(公告)号：US20230353048A1
公开(公告)日：2023-11-02
申请号：US17661509
申请日：2022-04-29
Applicant: Apple Inc.
Inventor： Jay B. Fletcher , Nathan F. Hanagami , Sanjay Pant , Hao Zhou , Shawn Searles
Abstract: A voltage regulator circuit included in a computer system may employ a control circuit and a switch array that includes multiple switch circuits. Different groups of switch circuits that include respective groups of switch devices are coupled between an input power supply node and corresponding regulated power supply nodes. To maintain desired respective voltages on the regulated power supply nodes, the control circuit compares the voltages of the regulated power supply nodes to corresponding reference voltages and, based on results of the comparisons, opens and closes various ones of the switch devices included in the different groups of switch circuits.
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公开(公告)号：US20220399810A1
公开(公告)日：2022-12-15
申请号：US17343459
申请日：2021-06-09
Applicant: Apple Inc.
Inventor： Hao Zhou , Sarfraz Shaikh , Jay B. Fletcher , Sanjay Pant , Mark A. Yoshimoto , Vincenzo Bisogno , Shawn Searles
Abstract: A power management circuit included in a computer system regulates a voltage level of a power supply node used by other circuits in the computer system. The power management circuit includes a control circuit and multiple phase circuits coupled to the regulated power supply node via corresponding inductors. The control circuit selectively activates particular ones of the multiple phase circuits allowing them source respective currents to the regulated power supply node. The control circuit also selectively activates particular ones of other phase circuits that are external to the power management circuit and coupled to the regulated power supply node via their own corresponding inductors. Once activated, the external phase circuits source respective currents to the regulated power supply node via their corresponding inductors.
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4.发明申请公开(公告)号：US20220103074A1
公开(公告)日：2022-03-31
申请号：US17482215
申请日：2021-09-22
Applicant: Apple Inc.
Inventor： Chongli Cai , Hao Zhou , Jay B. Fletcher
IPC: H02M3/158
Abstract: A power converter circuit that includes multiple phase circuits may employ coupled inductors to generate a particular voltage level on a regulated power supply node. Based on a comparison of a voltage level of the regulated power supply node and a reference voltage, the power converter circuit may initiate an active period, during which the phase circuits source respective currents to the regulated power supply node via corresponding coils included in the coupled inductor. After a time period has elapsed following an initiation of the active period, the operation of the phase circuits is adjusted so that the respective currents flowing in the coils of the coupled inductor are out of phase.
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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
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US12244231B2
公开(公告)日：2025-03-04
申请号：US18634182
申请日：2024-04-12
Applicant: Apple Inc.
Inventor： Sujan K. Manohar , Jay B. Fletcher
Abstract: In some embodiments, a power converter circuit included in a computer system magnetizes and de-magnetizes an inductor coupled to a switch node using high-side and low-side switches to alternatively couple a switch node to an input power supply node and a ground supply node. In response to detecting a drop in the voltage level of the input power supply node, the power converter circuit may adjust an on-resistance of the high-side switch to maintain performance at the lower voltage level of the input power supply node.
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公开(公告)号：US12231044B2
公开(公告)日：2025-02-18
申请号：US18153057
申请日：2023-01-11
Applicant: Apple Inc.
Inventor： Victor Zyuban , Jay B. Fletcher , Hao Zhou
IPC: H02M3/158
Abstract: A power management circuit for computer systems includes a power converter circuit that generates different voltage levels at different time periods. Multiple voltage regulator circuits are coupled to the output of the power converter circuit and to respective local power supply nodes. Switch devices are used to bypass the voltage regulator circuits during corresponding ones of the different time periods.
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公开(公告)号：US20240396452A1
公开(公告)日：2024-11-28
申请号：US18792905
申请日：2024-08-02
Applicant: Apple Inc.
Inventor： Jay B. Fletcher , Nathan F. Hanagami , Sanjay Pant , Hao Zhou , Shawn Searles
Abstract: A voltage regulator circuit included in a computer system may employ a control circuit and a switch array that includes multiple switch circuits. Different groups of switch circuits that include respective groups of switch devices are coupled between an input power supply node and corresponding regulated power supply nodes. To maintain desired respective voltages on the regulated power supply nodes, the control circuit compares the voltages of the regulated power supply nodes to corresponding reference voltages and, based on results of the comparisons, opens and closes various ones of the switch devices included in the different groups of switch circuits.
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公开(公告)号：US12093068B2
公开(公告)日：2024-09-17
申请号：US17806908
申请日：2022-06-14
Applicant: Apple Inc.
Inventor： Michael P. Wigley , Tiago Filipe Galhoz Patrao , Mircea-Andrei Lazar , Nathan F. Hanagami , Jay B. Fletcher , Enrico Zanetti
CPC classification number: G05F1/575 , G05F1/468 , G05F1/565 , H02M1/0009 , H02M3/158
Abstract: A regulator circuit included in a computer system may include a control circuit and multiple pass circuits that source respective supply currents to a regulated power supply node by adjusting respective conductance values between an input power supply node and the regulated power supply node. The number of pass circuits can be adjusted on a design-by-design basis based on a threshold load current for the regulator circuit or on a threshold conductance between the input power supply node and the regulated power supply node. The control circuit adjusts the respective conductance values using a combination of respective sense currents generated by the multiple pass circuits along with a reference voltage and a voltage level of the regulated power supply node.
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