Original link: https://www.okace.cn/658.html
One of the analog circuit experiments is to design an audio amplifier by yourself.
**Audio power amplifier is an indispensable and important part of the audio system. Its main task is to amplify the audio signal that has been amplified in the previous stage to obtain sufficient output power to drive external loads, such as speakers, speakers, etc.
This experiment is to design and manufacture an audio amplifier according to the given technical indicators, which is required to drive a speaker with a rated power P>=8W.
Parameter requirements:
a. Rated power: Pom >= 5W
b. Load impedance: RL = 8.2Ω
c. Upper limit frequency: fH >= 20KHz
d. Input impedance: Ri > 20KΩ
e. Voltage gain: G > 20dB
Refer to Chapter 9 of the Basics of Analog Electronics Technology and retrieve relevant information, draw the working principle of the designed circuit, and analyze and explain its working principle.
Use NI Multisim software to simulate and verify that the circuit is feasible.
Make an audio power amplifier and debug to make its performance meet the requirements. **
This article is transferred from: https://www.okace.cn/658.html
This site is only for collection, and the copyright belongs to the original author.