A Amplifier That Uses Transistors As Amplifier Elements --- Crystal Tube Speakers

Crystal tube speaker (Solid State Amplifier) It is a amplifier using a transistor as a magnifying element.Crystal tube is a semiconductor component, which has the function of current amplification and voltage amplification. It is widely used in various electronic devices, including audio amplifiers.

Compared with traditional tube speakers, transistor speakers have many advantages.First of all, the transistor speaker uses the transistor as a magnifying component, compared toDAC8534IPWRQleun tube,Crystal tubes have higher reliability and longer service life.Secondly, the transistor speaker has better performance in terms of power output, frequency response range and distortion.In addition, transistor speakers are usually smaller and light, easy to carry and install.

The working principle of the transistor speaker is to amplify the audio signal by controlling the current and voltage of the transistor.The audio signal enters the input stage of the amplifier through the input terminal. After the amplifier circuit, it is amplified to sufficient voltage and current, and finally outputs it to the speaker speaker.The amplifier circuit usually includes different types of transistors, such asNPN(Negative and negative) andPNP(Positive and positive) Crystal tube, they can achieve positive and negative enlarged half a week.

The performance of the transistor speaker is mainly evaluated through the following aspects:

1.Power output: The maximum power that can output the transistor speaker is one of the important indicators to measure its performance.Power output is usually Watt (W) For the unit to express it, comparelike10W、50Wor100Wwait.The size of the power output directly affects the sound volume and diffusion capacity of the speaker.

2.Frequency response: Frequency response refers to the frequency range where transistor speakers can magnify.Generally speaking, the frequency response of the transistor speaker should cover the perceived auditory scope of human ear, that is,20Hzto20kHzEssenceThe better the flatness of the frequency response, the more accurate the sound of the speaker at different frequencies.

3.Disctional level: distortion refers to the difference between the speaker output signal and the input signal.The distortion of the transistor speaker usually includes harmonic distortion and interlaced distortion.Harmonic distortion refers to the additional frequency component containing the input signal frequency of an integrated multiplier in the output signal.Interchange distortion refers to the additional frequency component that contains the frequency of input signals in the output signal.The lower the degree of distortion, the more accurate the sound of the speaker output.

4.Signal ratio: The signal -to -noise ratio refers to the ratio between the speaker output signal and the background noise.The size of the signal -to -noise ratio directly affects the dynamic range and detail of the speaker.A higher signal -to -noise ratio indicates that the speaker can output a clearer and more real audio signal.

As a modern amplifier, transistor speakers are widely used in home audio, professional audio systems, stage performances and recording studios.They not only have high performance and reliability, but also meet the different needs of people's sound quality and sound effects.