Invention Grant
- Patent Title: Output distortion cancellation circuit
- Patent Title (中): 输出失真消除电路
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Application No.: US12103153Application Date: 2008-04-15
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Publication No.: US07679442B2Publication Date: 2010-03-16
- Inventor: Moshe Gerstenhaber , James Bundock
- Applicant: Moshe Gerstenhaber , James Bundock
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Kenyon & Kenyon LLP
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
An output distortion circuit includes a first transistor arrangement receiving a nonlinear current associated with a nonlinear differential error signal. The first transistor arrangement produces a reflected base current that is applied to one side of a differential input pair. A second transistor arrangement eliminates the nonlinear differential error signal by producing a replicated base current that replicates the reflected base current. The replicated base current is applied to an opposite side of the differential input pair thus the output distortion cancellation circuit creating a deflection of approximately equal magnitude to the reflected base current so as to eliminate the nonlinear differential error signal.
Public/Granted literature
- US20090256634A1 OUTPUT DISTORTION CANCELLATION CIRCUIT Public/Granted day:2009-10-15
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