Audio Power Amplifier Output Linearity - WingSpread Plots #1031
tomhajjar
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WingSpread plots are popular over at diyAudio. They indicate Audio Power Amplifier Driver/Output section linearity.
ngspice has an example using VDMOS devices called 100W_wingspread.sp. This project has an analysis for VDMOS and BJT devices.
Audio_Output_Linearity_prj.zip
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