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本放大器的全部信号放大器件均选用MOS—FET,并将放大级数减至最低限度,对负反馈环路、地线连接、元器件布置等细节都作了周密地考虑,因而具有性能好、工作稳定、调试容易等特点。 半导体放大器一般都加有负反馈,当然也有不加负反馈的,但这类放大器的稳定性差、元器件的选择难度大。要想制作简单、音质好、加负反馈仍是最佳选择。 负反馈放大器常见的缺点是高频的负反馈量会随频率发生变化。对此,本放大器采取以下对策:
The amplifier all the signal amplifier devices are selected MOS-FET, and the amplification stage to a minimum, the negative feedback loop, ground connections, details of the components are carefully arranged and so has a good performance, Work stability, easy to debug and so on. Semiconductor amplifiers are generally added negative feedback, of course, there is no negative feedback, but the stability of such amplifiers is poor, the choice of components difficult. To make simple, good sound quality, negative feedback is still the best choice. A common disadvantage of negative feedback amplifiers is that the amount of negative feedback at high frequencies varies with frequency. In this regard, the amplifier to take the following measures: