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公开(公告)号：US11086378B1
公开(公告)日：2021-08-10
申请号：US16784605
申请日：2020-02-07
Applicant: Apple Inc.
Inventor： Michael Couleur , Nicola Rasera , Siarhei Meliukh
Abstract: A power converter circuit that includes a switch circuit, and multiple phase and amplifier circuits, may generate a voltage level on a regulated power supply node of a computer system. The amplifier circuits may generate respective demand currents using a voltage level of the regulated power supply node and a reference voltage. In response to activation of a multi-phase operating mode, the switch circuit may short the outputs of the amplifier circuits to generate a common demand current. The multiple phase circuits may sequentially source current to regulated power supply node using the common demand current.
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公开(公告)号：US10903741B1
公开(公告)日：2021-01-26
申请号：US16816227
申请日：2020-03-11
Applicant: Apple Inc.
Inventor： Michael Couleur , Nikola Javanovic , Siarhei Meliukh
Abstract: A power converter circuit included in a computer system may include an adiabatic charge pump which includes multiple capacitors different numbers of which are used to charge and discharge a switch node coupled to regulated power supply node via an inductor. A control circuit may control the dividing ratio of the charge pump circuit as well as determine respective durations of when the charge pump circuit is charging and discharging the switch node.
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Patent Agency Ranking
公开(公告)号：US10425009B2
公开(公告)日：2019-09-24
申请号：US16113832
申请日：2018-08-27
Applicant: Apple Inc.
Inventor： Michael Couleur , Fabio Ongaro , Dashun Xue
IPC: H02M3/158
Abstract: A regulator circuit that employs coupled inductors with on-time modulation is disclosed. The regulator circuit includes a driver circuit coupled via first and second inductors to a power supply node of a load circuit, and may charge the power supply node via the first inductor for a first charging period, and charge the power supply node via the second inductor for a second charging period. A control circuit may determine durations of the first and second charging periods using respective pluralities of currents.
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公开(公告)号：US10348198B2
公开(公告)日：2019-07-09
申请号：US15691461
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Fabio Ongaro , Michael Couleur
Abstract: Systems, apparatuses, and methods for generating a stable output voltage for one or more components by checking feedback information for an entire clock period are described. In various embodiments, a power converter generates an output voltage for one or more components. When the load current drawn by the one or more components changes, an inductor current of a low pass filter and monitored by a current sense amplifier also changes. The clock period is divided into a high phase and a low phase with one of the phases being a relatively short phase. During the relatively short phase, the current sense amplifier does not have sufficient time to measure feedback information. Instead of selecting a voltage output of the current sense amplifier, control logic selects a voltage output of a voltage generator, which emulates a voltage ramp with a slope of the inductor current during the relatively short phase.
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公开(公告)号：US20190068054A1
公开(公告)日：2019-02-28
申请号：US15691461
申请日：2017-08-30
Applicant: Apple Inc.
Inventor： Fabio Ongaro , Michael Couleur
CPC classification number: H02M3/156 , H02M1/08 , H02M2001/0009 , H02M2001/0048
Abstract: Systems, apparatuses, and methods for generating a stable output voltage for one or more components by checking feedback information for an entire clock period are described. In various embodiments, a power converter generates an output voltage for one or more components. When the load current drawn by the one or more components changes, an inductor current of a low pass filter and monitored by a current sense amplifier also changes. The clock period is divided into a high phase and a low phase with one of the phases being a relatively short phase. During the relatively short phase, the current sense amplifier does not have sufficient time to measure feedback information. Instead of selecting a voltage output of the current sense amplifier, control logic selects a voltage output of a voltage generator, which emulates a voltage ramp with a slope of the inductor current during the relatively short phase.
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公开(公告)号：US20180367038A1
公开(公告)日：2018-12-20
申请号：US16113832
申请日：2018-08-27
Applicant: Apple Inc.
Inventor： Michael Couleur , Fabio Ongaro , Dashun Xue
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M3/1584 , H02M2003/1586
Abstract: A regulator circuit that employs coupled inductors with on-time modulation is disclosed. The regulator circuit includes a driver circuit coupled via first and second inductors to a power supply node of a load circuit, and may charge the power supply node via the first inductor for a first charging period, and charge the power supply node via the second inductor for a second charging period. A control circuit may determine durations of the first and second charging periods using respective pluralities of currents.
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公开(公告)号：US10063145B1
公开(公告)日：2018-08-28
申请号：US15444594
申请日：2017-02-28
Applicant: Apple Inc.
Inventor： Michael Couleur , Fabio Ongaro , Dashun Xue
Abstract: A regulator circuit that employs coupled inductors with on-time modulation is disclosed. The regulator circuit includes a driver circuit coupled via first and second inductors to a power supply node of a load circuit, and may charge the power supply node via the first inductor for a first charging period, and charge the power supply node via the second inductor for a second charging period. A control circuit may determine durations of the first and second charging periods using respective pluralities of currents.
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