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公开(公告)号：US10924017B2
公开(公告)日：2021-02-16
申请号：US16440434
申请日：2019-06-13
Applicant: QUALCOMM Incorporated
Inventor： Linfei Guo , Chengwu Tao , Joseph Duncan , Amir Parayandeh , Xiaocheng Jing , Justin Philpott , Lin Xue
Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for operating a switched-mode power supply (SMPS). One example method generally includes selecting a first output of a plurality of outputs of the SMPS based on a power demand associated with each of the plurality of outputs if a voltage at the first output is less than a reference voltage associated with the first output, by selecting as the first output one of the plurality of outputs having the highest power demand, and based on an amount of overcharge associated with the first output if the voltage at the first output is greater than the reference voltage, by selecting as the first output one of the plurality of outputs having the lowest amount of overcharge. The method may also include directing current across an inductive element of the SMPS to the first output based on the selection.
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公开(公告)号：US20200328677A1
公开(公告)日：2020-10-15
申请号：US16384446
申请日：2019-04-15
Applicant: Qualcomm Incorporated
Inventor： Sally Amin , Lin Xue , Iulian Mirea , Song Shi
IPC: H02M3/155
Abstract: An apparatus is disclosed for a single-inductor multiple-output (SIMO) power converter with a cross-regulation switch. An example apparatus includes a power source and a SIMO power converter. The SIMO power converter includes an input node coupled to the power source, a first node, a second node, a ground node, and an inductor coupled between the first node and the second node. The single-inductor multiple-output power converter also includes a first switch coupled between the input node and the first node, a second switch coupled between the first node and the ground node, and a cross-regulation switch coupled between the input node and the second node.
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公开(公告)号：US10978947B2
公开(公告)日：2021-04-13
申请号：US16384446
申请日：2019-04-15
Applicant: Qualcomm Incorporated
Inventor： Sally Amin , Lin Xue , Iulian Mirea , Song Shi
Abstract: An apparatus is disclosed for a single-inductor multiple-output (SIMO) power converter with a cross-regulation switch. An example apparatus includes a power source and a SIMO power converter. The SIMO power converter includes an input node coupled to the power source, a first node, a second node, a ground node, and an inductor coupled between the first node and the second node. The single-inductor multiple-output power converter also includes a first switch coupled between the input node and the first node, a second switch coupled between the first node and the ground node, and a cross-regulation switch coupled between the input node and the second node.
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4.发明授权公开(公告)号：US10819233B2
公开(公告)日：2020-10-27
申请号：US16246107
申请日：2019-01-11
Applicant: QUALCOMM Incorporated
Inventor： Lin Xue , Iulian Mirea , Xiaocheng Jing , Jongshick Ahn , Amir Parayandeh , Linfei Guo
Abstract: A power converter includes a voltage source for generating an input voltage, and a regulation circuit for generating a set of output voltages based on the input voltage. The regulation circuit regulates the set of output voltages in different manners based on whether the set of output voltages is greater or less than a set of corresponding reference voltages, respectively. If one or more output voltages are less than one or more of the corresponding reference voltages, the regulation circuit regulates only those one or more output voltages during a current regulation interval based on an error voltage related to one or more differences between the one or more output voltages and the corresponding one or more reference voltages, respectively. If all output voltages are greater than the corresponding reference voltages, the regulation circuit regulates only the output voltage associated with the largest load current during the current regulation interval.
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