US Patent 11973476 Chopper amplifiers with low intermodulation distortion
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US Patent 11973476 Chopper amplifiers with low intermodulation distortion
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Patent abstract
Chopper amplifiers with low intermodulation distortion (IMD) are provided. To compensate for IMD, at least one distortion compensation channel is included in parallel with chopper amplifier circuitry of a main signal channel. Additionally, output selection switches are included for selecting between the output of the main signal path and the distortional compensation channel(s) over time to maintain the output current continuous. Such IMD compensation can be realized by filling in missing current of the main signal channel using the distortion compensation channel(s), or by using channel outputs only when they have settled current.
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Patent Inventor Names
Casper Thije Rooijers0
Johan H. Huijsing0
Kofi A. A. Makinwa0
Date of Patent
April 30, 2024
0Patent Application Number
173049650
Date Filed
June 29, 2021
0Patent Citations
Patent Primary Examiner
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