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公开(公告)号：US20200280256A1
公开(公告)日：2020-09-03
申请号：US16290769
申请日：2019-03-01
Applicant: Apple Inc.
Inventor： Dingkun Du , Michael B. Nussbaum , Jitendra K. Agrawal , Floyd L. Dankert , Jay B. Fletcher
IPC: H02M3/158 , G06F1/28 , G06F1/3296
Abstract: A voltage regulator circuit included in a computer system may include multiple devices and a switch node coupled to a regulated power supply node via an inductor. The voltage regulator circuit may charge a capacitor using an input power supply signal, and couple the capacitor to the switch node using respective subsets of the multiple devices, which are selected based on one or more control signals. A control circuit may generate the one or more control signals based on a particular switching sequence, which is selected based on a ratio of a voltage level of the regulated power supply node and a voltage level input power supply signal.
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公开(公告)号：US20240077932A1
公开(公告)日：2024-03-07
申请号：US18122410
申请日：2023-03-16
Applicant: Apple Inc.
Inventor： Talbott M. Houk , Wenxun Huang , Nikola Jovanovic , Floyd L. Dankert , Sanjay Pant , Alessandro Molari , Siarhei Meliukh , Nicola Florio , Ludmil N. Nikolov , Nathan F. Hanagami , Hartmut Sturm , Di Zhao , Chad L. Olson , John J. Sullivan , Seyedeh Maryam Mortazavi Zanjani , Tristan R. Hudson , Jay B. Fletcher , Jonathan A. Dutra
IPC: G06F1/3296 , G06F1/3212 , G06F1/3234
CPC classification number: G06F1/3296 , G06F1/3212 , G06F1/3278
Abstract: The present disclosure describes a system with a power management device, a wakeup circuit, a battery management device, and a connector. During a powered down mode of operation, the battery management device can provide, via the connector, a bias voltage to the wakeup circuit. In response to a wakeup switch being activated, the battery management device can provide a power supply (e.g., from a battery) to the power management device. Benefits of the wakeup circuit include (1) a reduction of battery consumption—and thus improving battery lifetime—when the electronic system is in a powered down mode of operation because the wakeup circuit has lower number of active components compared to other designs and (2) a non-complex wakeup circuit design because one or more existing connector interconnects between the power management device and the battery management device can be re-used during electronic system's powered down mode of operation.
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Patent Agency Ranking
公开(公告)号：US20200280257A1
公开(公告)日：2020-09-03
申请号：US16290794
申请日：2019-03-01
Applicant: Apple Inc.
Inventor： Floyd L. Dankert , Jitendra K. Agrawal , Dingkun Du
IPC: H02M3/158 , H02M1/08 , G06F1/3296 , G06F1/28
Abstract: A voltage regulator circuit included in a computer system may include multiple devices and a switch node coupled to a regulated power supply node via an inductor. The voltage regulator circuit may, using different subsets of the multiple devices, charge a capacitor for a first period of time and then couple the switch node to the capacitor for a second period of time. A control circuit may sense, using a common circuit, different characteristics of a current through the inductor during respective operation modes, and adjust the first and second periods of time based on the different characteristics of the current and a current operation mode.
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公开(公告)号：US20220069704A1
公开(公告)日：2022-03-03
申请号：US17005129
申请日：2020-08-27
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ofir Gilad , Floyd L. Dankert , Hubert Attah , Sanjay Pant , Shawn Searles , Georg Diebel
Abstract: A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor is configured to regulate a voltage level of a power supply node using a particular one of multiple available operating modes. In response to receiving a command to reduce the voltage level of the power supply node, the power converter circuit begins to reduce the voltage level of the power supply node, while autonomously selecting different ones of available operating modes. The power converter circuit may compare to the voltage level of the power supply node to boundary levels and select a different operating mode when the voltage level of the power supply node exceeds one of the boundaries. By switching operating modes during the negative slew of the voltage level of the power supply node, the power converter may maintain a target efficiency during the reduction in voltage.
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公开(公告)号：US11431249B2
公开(公告)日：2022-08-30
申请号：US17005129
申请日：2020-08-27
Applicant: Apple Inc.
Inventor： Alberto Alessandro Angelo Puggelli , Ofir Gilad , Floyd L. Dankert , Hubert Attah , Sanjay Pant , Shawn Searles , Georg Diebel
Abstract: A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor is configured to regulate a voltage level of a power supply node using a particular one of multiple available operating modes. In response to receiving a command to reduce the voltage level of the power supply node, the power converter circuit begins to reduce the voltage level of the power supply node, while autonomously selecting different ones of available operating modes. The power converter circuit may compare to the voltage level of the power supply node to boundary levels and select a different operating mode when the voltage level of the power supply node exceeds one of the boundaries. By switching operating modes during the negative slew of the voltage level of the power supply node, the power converter may maintain a target efficiency during the reduction in voltage.
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公开(公告)号：US11303208B2
公开(公告)日：2022-04-12
申请号：US16290769
申请日：2019-03-01
Applicant: Apple Inc.
Inventor： Dingkun Du , Michael B. Nussbaum , Jitendra K. Agrawal , Floyd L. Dankert , Jay B. Fletcher
IPC: G06F1/28 , H02M3/158 , G06F1/3296
Abstract: A voltage regulator circuit included in a computer system may include multiple devices and a switch node coupled to a regulated power supply node via an inductor. The voltage regulator circuit may charge a capacitor using an input power supply signal, and couple the capacitor to the switch node using respective subsets of the multiple devices, which are selected based on one or more control signals. A control circuit may generate the one or more control signals based on a particular switching sequence, which is selected based on a ratio of a voltage level of the regulated power supply node and a voltage level input power supply signal.
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公开(公告)号：US10972007B2
公开(公告)日：2021-04-06
申请号：US16290794
申请日：2019-03-01
Applicant: Apple Inc.
Inventor： Floyd L. Dankert , Jitendra K. Agrawal , Dingkun Du
IPC: G06F1/32 , H02M3/158 , H02M1/08 , G06F1/28 , G06F1/3296 , H02M1/00 , G06F1/3203
Abstract: A voltage regulator circuit included in a computer system may include multiple devices and a switch node coupled to a regulated power supply node via an inductor. The voltage regulator circuit may, using different subsets of the multiple devices, charge a capacitor for a first period of time and then couple the switch node to the capacitor for a second period of time. A control circuit may sense, using a common circuit, different characteristics of a current through the inductor during respective operation modes, and adjust the first and second periods of time based on the different characteristics of the current and a current operation mode.
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