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公开(公告)号:US20190341844A1
公开(公告)日:2019-11-07
申请号:US15968981
申请日:2018-05-02
Applicant: Analog Devices Global Unlimited Company
Inventor: Amit Kumar Singh , Sriram Ganesan , Miguel A. Ruiz , Jose Tejada
IPC: H02M3/07
Abstract: Techniques for improving efficiency of a switched-capacitor voltage regulator are provided. In an example, a switched-capacitor voltage regulator can include a switched-capacitor network having multiple gain configurations, a clock configured to switch capacitors of the switched-capacitor network between a charge state and a discharge state to provide a scaled output voltage, and a controller configured to select a capacitor configuration associated with a gain of the multiple gain configurations to provide the scaled output voltage within a desired output voltage range while continuously switching the capacitor configuration, and to interrupt switching of the capacitor configuration to permit an output voltage of the switched-capacitor voltage regulator to fall below the scaled output voltage but to remain above a lower limit of the desired output voltage range to save power by reducing losses due to the switching.
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公开(公告)号:US10790740B2
公开(公告)日:2020-09-29
申请号:US15968981
申请日:2018-05-02
Applicant: Analog Devices Global Unlimited Company
Inventor: Amit Kumar Singh , Sriram Ganesan , Miguel A. Ruiz , Jose Tejada
Abstract: Techniques for improving efficiency of a switched-capacitor voltage regulator are provided. In an example, a switched-capacitor voltage regulator can include a switched-capacitor network having multiple gain configurations, a clock configured to switch capacitors of the switched-capacitor network between a charge state and a discharge state to provide a scaled output voltage, and a controller configured to select a capacitor configuration associated with a gain of the multiple gain configurations to provide the scaled output voltage within a desired output voltage range while continuously switching the capacitor configuration, and to interrupt switching of the capacitor configuration to permit an output voltage of the switched-capacitor voltage regulator to fall below the scaled output voltage but to remain above a lower limit of the desired output voltage range to save power by reducing losses due to the switching.
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公开(公告)号:US09866110B2
公开(公告)日:2018-01-09
申请号:US14469975
申请日:2014-08-27
Applicant: Analog Devices Global
Inventor: Miguel A. Ruiz , Jose Tejada Gomez
Abstract: A switched capacitor voltage converter is provided that includes an array of switches configured to alternately switch multiple capacitors between a charge configuration in which the multiple capacitors are coupled in series with each other and in parallel with the source voltage and a discharge configuration in which a first set of capacitors having n capacitors are coupled in parallel with each other and in series with the load and a second set of capacitors having m capacitors coupled in parallel with the load.
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