[Guangdong University of Technology] Simple Amplifier

The following functions have been achieved
1. Basic requirements (60 points in total) (1) The amplifier can output a sinusoidal voltage uo without obvious distortion. (10 points) (2) Measurement shows its input and output resistance. (15 points) (3) Draw the waveform diagram. (15 points) (4) Display the gain of the amplifier and draw the amplitude-frequency characteristic curve. (20 points) 2. Performance part (50 points in total) (1) Can output the voltage with top distortion and draw the waveform diagram. (10 points) (2) Can output the voltage with bottom distortion and draw the waveform diagram. (10 points) (3) When the amplifier outputs distortion-free voltage and two distortion voltages, the peak-to-peak value is not less than 2V. (15 points) (4) The measurement shows the approximate value of the distortion-free voltage and the "total harmonic distortion" of the two distortion voltages. (15 marks)

Implementation:

See work report

Code part (see attachment):

1.Waveform display

2.DDS signal generator

Hardware parts:

Amplifier see project itself

AD637 effective value detection, see attachment