Invention Grant
US09325535B2 Apparatus and methods for variable DC bias to improve linearity in signal processing circuits
有权
用于可变直流偏置的装置和方法，以改善信号处理电路中的线性度
- Patent Title: Apparatus and methods for variable DC bias to improve linearity in signal processing circuits
- Patent Title (中): 用于可变直流偏置的装置和方法，以改善信号处理电路中的线性度
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Application No.: US13627802Application Date: 2012-09-26
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Publication No.: US09325535B2Publication Date: 2016-04-26
- Inventor: George Khoury
- Applicant: Skyworks Solutions, Inc.
- Applicant Address: US MA Woburn
- Assignee: SKYWORKS SOLUTIONS, INC.
- Current Assignee: SKYWORKS SOLUTIONS, INC.
- Current Assignee Address: US MA Woburn
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H04L25/02
- IPC: H04L25/02 ; H04B1/04 ; H03F1/32 ; H03F3/191 ; H03F3/24
Abstract:
To maintain linear operation of a signal processing circuit, such as a low noise amplifier, a peak detector detects a peak of a signal associated with the signal processing circuit and compares the detected peak signal with a threshold. When the detected peak signal is greater than the threshold, a variable current source biases the signal processing circuit to place the signal processing circuit in a different mode of operation. The signal processing circuit may thereby process a larger input signal while operating in an acceptable linear region.
Public/Granted literature
- US20130078929A1 APPARATUS AND METHODS FOR VARIABLE DC BIAS TO IMPROVE LINEARITY IN SIGNAL PROCESSING CIRCUITS Public/Granted day:2013-03-28
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