Invention Grant
- Patent Title: Voltage, current, and saturation prevention
- Patent Title (中): 防止电压，电流和饱和度
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Application No.: US13668641Application Date: 2012-11-05
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Publication No.: US08907726B2Publication Date: 2014-12-09
- Inventor: Jeffery P. Ortiz , Alexander Wayne Hietala
- 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: H03F3/45
- IPC: H03F3/45 ; H03G3/30
Abstract:
In one embodiment, saturation of the control system of a power amplifier is limited by comparing a control voltage at a first control node against a scaled battery voltage, and then drawing an error current away from the first control node when the control voltage exceeds the scaled battery voltage. The first control node may be located after a trans-conductance amplifier in a feedback control system.
Public/Granted literature
- US20130113556A1 VOLTAGE, CURRENT, AND SATURATION PREVENTION Public/Granted day:2013-05-09
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