专利汇可以提供Transducer amplifier system专利检索,专利查询,专利分析的服务。并且A solid state transducer amplifier system is provided in the form of a main operational amplifier having a differential input stage and an active series connected feedback loop as opposed to the conventional passive types of feedback. The active feedback loop incorporates a differential amplifier having an extremely accurate and linear differential transconductance characteristic such that the output voltage signal from the main operational amplifier fed to the differential feedback amplifier results in the generation of a differential feedback current proportional to this voltage. This differential feedback current generates a feedback voltage which is balanced against the differential input signal in the input stage so that changes in the differential input signal are followed by changes in the feedback voltage. Since the value of the differential feedback current is at all times determined by the output voltage signal from the main amplifier fed into the feedback loop, the output voltage signal constitutes a very accurate and linear amplification of the differential input signal. The differential feedback current is virtually unchanged by the common mode differential input voltage applied to the input stage thereby assuring a high common mode rejection. The active feedback amplifier itself incorporates current feedback to linearize and establish a more accurate transconductance characteristic. Towards this end, pairs of monolithic dual transistors are preferably utilized to provide excellent inherent matching and tracking necessary between the generated output currents and feedback currents.,下面是Transducer amplifier system专利的具体信息内容。
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