Low and even forward (backward) and zero sequence impedance improves the quality of power supply.

电缆具有较低且均匀的正(逆)序和零序工作阻抗，有利于改善供电品质。

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A new principle of switched-capacitor RLC simulation, based on backward difference transformation, is presented. SC negative impedance converters and inductance simulation circuits are designed.

本文采用后差变换，提出实现模拟电阻，电感和电容特性的开关电容仿真电路的新原理。

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