Low cost power amplifier circuit for pushing computer loudspeaker

Abstract

The invention discloses a low cost power amplifier circuit for pushing a computer loudspeaker. The low cost power amplifier circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first audion, a second audion, a third audion, a fourth audion, a dual operational amplifier, a first capacitor and a second capacitor. The dual operational amplifier is composed of a first operational amplifier and a second operational amplifier. The low cost power amplifier circuit for pushing the computer loudspeaker can effectively amplify audio signals, the output tone quality is high in fidelity, tones are soft, small and medium loudspeakers and subwoofers can be pushed, and the advantages of being small in signal distortion, high in power amplification efficiency, stable in working performance and low in power consumption are achieved. In the low cost power amplifier circuit for pushing the computer loudspeaker, used elements are few, the structure of the circuit is simple, the manufacturing cost is lowered, and the using and popularization value is achieved.

Description

technical field [0001] The invention relates to an auxiliary circuit for computer audio, in particular to a low-cost power amplifier circuit for driving computer audio. Background technique [0002] With the continuous development of electronic technology, the power amplifier circuit has also been rapidly developed and applied, especially the progress of semiconductor technology, so that the power amplifier circuit continues to develop in the direction of modularization, miniaturization, and collectivization. The general audio power Amplifying circuit is a very commonly used electronic circuit. In daily life, most computers are equipped with independent speakers, which makes the computer's audio and video effects better. However, it is not easy to choose a good audio amplifier. The existing audio amplifiers Most of the circuit structures are complicated and the production cost is high, but the sound quality output of low-priced audio power amplifiers is not satisfactory....

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of electronic technology, the power amplifier circuit has also been rapidly developed and applied, especially the progress of semiconductor technology, so that the power amplifier circuit continues to develop in the direction of modularization, miniaturization, and collectivization. The general audio power Amplifying circuit is a very commonly used electronic circuit. In daily life, most computers are equipped with independent speakers, which makes the computer's audio and video effects better. However, it is not easy to choose a good audio amplifier. The existing audio amplifiers Most of the circuit structure is complicated, the production cost is high, and the sound quality output of the cheap audio power amplifier is not satisfactory.

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