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一、概述所谓OTL电路,就是输出级和扬声器之间不用变压器的电路。由于OTL电路中晶体管之间采用直接耦合,故其频率特性良好。并能加大负反馈量以减小非线性失真和提高稳定性,特别是近年来电子设备向集成化方向发展,要求在放大器中尽量把变压器去掉,因而使得OTL电路得到了广泛的应用。现代的各种电声技术2/1988
First, an overview of the so-called OTL circuit, that is, between the output stage and the speaker transformer circuit. Due to the direct coupling between the transistors in the OTL circuit, the frequency characteristics are good. And can increase the amount of negative feedback to reduce nonlinear distortion and improve stability, especially in recent years, the direction of the integration of electronic devices to the development of the transformer required to try to get rid of the amplifier, making the OTL circuit has been widely used. Modern electro-acoustic technology 2/1988