Invention Grant
- Patent Title: Delay-compensating power management circuit
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Application No.: US17331756Application Date: 2021-05-27
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Publication No.: US11929712B2Publication Date: 2024-03-12
- Inventor: Nadim Khlat
- Applicant: Qorvo US, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03F1/02
- IPC: H03F1/02 ; G05F1/46 ; H03F1/32 ; H03F3/195 ; H03F3/24 ; H04B1/40 ; H04L27/36

Abstract:
A delay-compensating power management circuit is provided. The power management circuit includes a power management integrated circuit (PMIC) configured to generate a time-variant voltage(s) based on a time-variant target voltage(s) for amplifying an analog signal(s) associated with a time-variant power envelope(s). A voltage processing circuit is provided in the power management circuit to determine a temporal offset, which can be positive or negative, between the time-variant power envelope(s) and the time-variant target voltage(s). Accordingly, the voltage processing circuit modifies the time-variant target voltage(s) to substantially reduce the determined temporal offset and thereby realign the time-variant target voltage(s) with the time-variant power envelope(s). By realigning the time variant target voltage(s) with the time-variant power envelope(s), it is possible to align the time-variant voltage(s) with the time-variant power envelope(s) to reduce distortions (e.g., amplitude clipping) during amplification of the analog signal.
Information query
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