In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zero voltage and zero current at the inverting input.

对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。

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The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.

所述第二放大装置经由 输出匹配电路以及包含传输线的第二阻抗变换器连接到所述求和结 点。

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In summing of the last product in the traditional multiplier design, the array or iteration summing method is used, which is not suitable to the design of small or middle scale integration circuit.

传统的乘法器的设计，在最终的乘积项求和时，常采用阵列相加或叠代相加的方法，不适用中小规模的微处理器的设计。

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