Invention Grant
- Patent Title: VRAMP limiting using resistors
- Patent Title (中): VRAMP限制使用电阻
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Application No.: US13950768Application Date: 2013-07-25
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Publication No.: US08884703B2Publication Date: 2014-11-11
- Inventor: Jean-Christophe Berchtold , Erik Pedersen
- Applicant: RF Micro Devices, Inc.
- Applicant Address: US NC Greensboro
- Assignee: RF Micro Devices, Inc.
- Current Assignee: RF Micro Devices, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03F3/04
- IPC: H03F3/04 ; H03F3/24 ; H03F3/45 ; H03G3/00 ; H03F3/195 ; H03F1/02

Abstract:
Power amplification devices are described, which are configured to amplify a radio frequency (RF) transmission signal. The power amplification device includes a voltage regulation circuit and a power amplification circuit. The voltage regulation circuit is configured to generate a regulated voltage for the power amplification device from a supply voltage and to adjust a regulated voltage level of the regulated voltage in accordance with a voltage adjustment gain. The voltage adjustment gain of the voltage regulation circuit is set by a feedback resistance. To help prevent the voltage regulation circuit from saturating, the voltage regulation circuit adjusts the feedback resistance to reduce the voltage regulation gain.
Public/Granted literature
- US20130307621A1 VRAMP LIMITING USING RESISTORS Public/Granted day:2013-11-21
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