[Power-on School Competition] Signal Generator

**Question requirements: **
          Design a function signal generator using discrete components, operational amplifiers and integrated digital gate circuits. The signal generator is required to be able to generate square waves, sine waves, triangle waves, and sawtooth waves
! [image.png] The specific requirements are as follows: ·
1. Basic requirements:
         (1) The frequency of the sine wave is adjustable from 1kHz to 500kHz, and the amplitude range 0~5V continuously adjustable, phase 0~180° continuously adjustable;
         (2), square wave duty cycle 10%~90% adjustable, frequency 1kHz~500kHz adjustable;
         (3) triangle wave, sawtooth wave amplitude and The frequency is adjustable;
2. Play part:
        (1) The frequency of the sine wave is adjustable from 1kHz to 1MHz;
        (2) It has a certain load capacity and can drive the speaker (impedance about 8Ω) to make sound.
Note:
          The power supply uses a regulated power supply device in the laboratory, the output voltage is adjustable from 0-30V, and the maximum output current is 3A;
          only discrete components, operational amplifiers and integrated digital gate circuits (74 series or 4000 series) can be used in the work. Implemented on the board;
          the evaluation of the work is based on the actual data of the above indicators, and the winner wins; write the design report of the work, including: technical principles, technical routes, feasibility analysis, and experimental results and analysis.


Design report:
Link: [https://pan.baidu.com/s/1i6NkiB3dEKKMnz7E814ynA](https://pan.baidu.com/s/1i6NkiB3dEKKMnz7E814ynA)
Extraction code: 6p0i
Copy this content and open the Baidu Netdisk mobile app , the operation is more convenient--Sharing from Baidu Netdisk Super Member V4