-
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
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.
-
52.发明授权公开(公告)号：US11349396B2
公开(公告)日：2022-05-31
申请号：US16747435
申请日：2020-01-20
Applicant: Apple Inc.
Inventor： Michael Couleur , Shawn Searles , Nikola Jovanovic
Abstract: A method and apparatus for operating a DC-DC converter in an interleaved (or rotating) pulse frequency modulation (PFM) mode is disclosed. A DC-DC converter includes a number of inductor pairs, with each inductor coupled to a corresponding pulse control circuit. During a cycle in which one of the pulse control circuits sources a current pulse through its respectively coupled inductor, a second pulse control circuit coupled to the other inductor of the pair determines if a voltage on its output node (e.g., where it is coupled to its inductor) is less than a threshold voltage. Responsive to determining that the voltage on its output node is less than the threshold, the second pulse control circuit activates a current path through the other inductor of the pair.
-
公开(公告)号：US11320849B2
公开(公告)日：2022-05-03
申请号：US17006707
申请日：2020-08-28
Applicant: Apple Inc.
Inventor： Shawn Searles , Victor Zyuban , Mohamed Abu-Rahma
Abstract: A voltage regulator circuit may generate a regulated voltage level using a voltage level of a feedback node. The regulated voltage level may be distributed, via a power distribution network, to package power supply node of a package, into which an integrated circuit has been mounted. Power switches included in the integrated circuit may couple the package power supply node to respective local power supply nodes in the integrated circuit. A particular power switch may selectively couple different ones of the local power supply nodes to the feedback node, allowing the voltage regulator circuit to compensate for reductions in the regulated voltage level due to the power distribution network, as well as adjust the regulated voltage level based on power consumptions of load circuits coupled to the local power supply nodes.
-
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.
-
公开(公告)号：US20210257912A1
公开(公告)日：2021-08-19
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
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.
-
Patent Agency Ranking
56.发明申请公开(公告)号：US20210226536A1
公开(公告)日：2021-07-22
申请号：US16747435
申请日：2020-01-20
Applicant: Apple Inc.
Inventor： Michael Couleur , Shawn Searles , Nikola Jovanovic
Abstract: A method and apparatus for operating a DC-DC converter in an interleaved (or rotating) pulse frequency modulation (PFM) mode is disclosed. A DC-DC converter includes a number of inductor pairs, with each inductor coupled to a corresponding pulse control circuit. During a cycle in which one of the pulse control circuits sources a current pulse through its respectively coupled inductor, a second pulse control circuit coupled to the other inductor of the pair determines if a voltage on its output node (e.g., where it is coupled to its inductor) is less than a threshold voltage. Responsive to determining that the voltage on its output node is less than the threshold, the second pulse control circuit activates a current path through the other inductor of the pair.
-
公开(公告)号：US10601330B1
公开(公告)日：2020-03-24
申请号：US15697283
申请日：2017-09-06
Applicant: Apple Inc.
Inventor： David P. Cappabianca , Joseph T. DiBene, II , Shawn Searles
Abstract: An embodiment of a system is disclosed, including an inductor, a voltage regulating circuit, a load, and a current detecting circuit. The inductor includes a first wire, a second wire, and a third wire. The third wire is between, and may be inductively coupled to, the first wire and the second wire. The voltage regulating circuit is coupled to a first end of the first wire and a first end of the second wire. The voltage regulating circuit is configured to generate a first current through the first wire and a second current through the second wire. The load is coupled to a second end of the first wire and a second end of the second wire. The current detecting circuit, coupled to ends of the third wire, is configured to generate an output signal based on a third current through the third wire.
-
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.
-
公开(公告)号：US20190013464A1
公开(公告)日：2019-01-10
申请号：US16112006
申请日：2018-08-24
Inventor： Alexander Kalnitsky , Shawn Searles , David Cappabianca
CPC classification number: H01L43/12 , H01L27/013 , H01L28/10 , H01L28/40 , H01L28/60 , H05K1/0306 , H05K1/162 , H05K1/165 , H05K3/007 , H05K3/4664 , H05K2201/086 , H05K2203/1131
Abstract: Co-fired integrated circuit devices and methods for fabricating and integrating such on a workpiece are disclosed herein. An exemplary method includes forming a first passive device and a second passive device over a carrier substrate. The first passive device and the second passive device each include at least one material layer that includes a co-fired ceramic material. The carrier substrate is removed after performing a co-firing process to cause chemical changes in the co-fired ceramic material. The first passive device may include a conductive loop disposed between a first magnetic layer and a second magnetic layer. The first magnetic layer, the second magnetic layer, or both includes a co-fired ceramic magnetic material. The second passive device may include a first conductive layer and a second conductive layer separated by a dielectric layer. The first conductive layer, the second conductive layer, or both includes a co-fired ceramic conductive material.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
83
records
(took 0.022 seconds)
