A miniature shaping amplifier and gate integrator as well as its applications, operation principle, circuit structure and circuit design are introduced in this paper.

提出了一种微型成形放大器和门积分器，简要介绍电路结构与电路设计，工作原理及技术指标。

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In this paper, the operation principles of the total system and power-amplifier circuit, design method of digital PWM hardware circuit and software are described, and.

文中着重阐述系统和功放电路的工作原理、数字脉宽调制器的硬件电路、软件设计方法，并给出实验结果。

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For the tunnel diode parallel amplifier, quiescent operation point, circuit specification and offset voltage are studied.

介绍了隧道二极管的特性，研究了隧道二极管并联放大器的静态特性，主要性能指标和偏置要求。

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