Invention Grant
- Patent Title: Current metering for transitioning between operating modes in switching regulators
- Patent Title (中): 开关稳压器工作模式之间的电流测量
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Application No.: US14704864Application Date: 2015-05-05
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Publication No.: US09577527B2Publication Date: 2017-02-21
- Inventor: Narasimhan Trichy , James Allen Kohout
- Applicant: Active-Semi, Inc.
- Applicant Address: VG
- Assignee: Active-Semi, Inc.
- Current Assignee: Active-Semi, Inc.
- Current Assignee Address: VG
- Agency: Imperium Patent Works
- Agent Daniel D. Tagliaferri; Amir V. Adibi
- Main IPC: H02M3/158
- IPC: H02M3/158 ; H02M1/00

Abstract:
Current metering for transitioning to low power operation in switching regulators is disclosed. In an exemplary embodiment, a method is provided that includes generating pulse width modulated charging cycles that enable current to flow to an inductor to adjust an output voltage, and detecting a skipped charging cycle. The method also includes determining whether a number of charging cycles are skipped over a time interval that begins when the skipped charging cycle is detected. The method also includes transitioning to a low power operating mode if it determined that the number of charging cycles have been skipped over the selected time interval. During the low power operating mode pulse frequency modulated charging cycles are generated that enable the current to flow to the inductor to generate the output voltage.
Public/Granted literature
- US20160276931A1 Current Metering For Transitioning Between Operating Modes In Switching Regulators Public/Granted day:2016-09-22
Information query
IPC分类: