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The new electronic fractional frequency power amplifier circ

2015-01-04 23:40  
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The new electronic fractional frequency power amplifier circuit diagram
The circuit uses integrated power amplifier driver XG404. It can also achieve good characteristics of the filter divider while making power amplification, so it is a relatively ideal fidelity power amplifier. The rated output power without distortion ( harmonic distortion is less than 5% ) is 24W. The cutoff frequency on bass channel filter is 300Hz, C1 = 2C2 , C2 = 0.16μF, then R = 25KΩ, AU = ( R1 + RF ) / R1 = 100 ( FIG RF = 10KΩ , R1 = 100Ω ), and the cutoff frequency depends primarily on the coupling capacitor.