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[Guangxi Normal University Competition] Arbitrary waveform generator

 
Overview

Question D Arbitrary waveform generator

1. Task

Design and make an arbitrary waveform generator that can generate sine waves, square waves, and triangle waves.

The waveform generator can guarantee constant voltage output within a certain range.

2. Requirements

1. Basic requirements

(1) The waveform generator can generate three periodic signals: sine wave, square wave, and triangle wave;

(2) The frequency range of the output waveform is 100Hz ~ 100kHz; the frequency is adjustable, and the frequency step interval ≤

100Hz;

(3) Under 50Ω load condition, the maximum output voltage peak-to-peak value is ≥ 2V;

(4) Function to display the type, repetition frequency (period) and amplitude of the output waveform;

(5) There is no obvious distortion when observed with an oscilloscope.

2 . play part

(1) The frequency range of the sinusoidal signal is extended to 1Hz~10MHz, further improving the output of square waves and triangle waves.

output frequency.

(2) With output frequency and frequency step setting functions;

(3) Under 50Ω load condition, the maximum output voltage peak-to-peak value is ≥5V;

(4) It has the function of displaying waveform type, frequency and amplitude;

(5) At least one arbitrary waveform can be output.

3. Description

1. The basic frequency adjustment method can be analog or digital to give full play to partial frequency adjustment.

Can only be numeric.

2. To use some output frequencies and frequency steps, you need to use the keyboard to set them.

3. The type of arbitrary waveform can be selected and the frequency can be changed.

 

 

 

 

First Prize at School Level

Team members: Qin Weifeng, He Gang, Ye Dongwen, instructor: Guan Jinjie

参考设计图片
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