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A new four terminal floating nullor based single-input three-output current-mode multifunction filter

机译:一种新的基于四端浮零的单输入三输出电流模式多功能滤波器

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摘要

In this study, a new circuit configuration to realise a current-mode multifunction filter is presented. The circuit uses four four terminal floating nullors (FTFNs) and six passive components, four of them are grounded and can simultaneously realise low-pass, band-pass and high-pass filter functions without changing the circuit topology and elements. It does not require any parameter matching condition and has the possibility of independent adjustment foω0 without disturbing ω0/Q. Sensitivity analysis of the filter shows that it has low passive sensitivities and ω0, Q and ω0/Q of the filter are insensitive to current tracking errors, furthermore ω0 of the filter is insensitive to voltage tracking errors of the FTFNs. All outputs of the multifunction filter exhibit high output impedances so that the synthesised current-mode filters can be cascaded without additional buffers. The theoretical results are verified by PSPICE simulations.
机译:在这项研究中,提出了一种用于实现电流模式多功能滤波器的新电路配置。该电路使用四个四个端子浮动零陷(FTFN)和六个无源元件,其中四个接地,并且可以在不改变电路拓扑和元件的情况下同时实现低通,带通和高通滤波器功能。它不需要任何参数匹配条件,并且可以独立调整foω0而不会干扰ω0/ Q。滤波器的灵敏度分析表明,它具有较低的无源灵敏度,并且滤波器的ω0,Q和ω0/ Q对电流跟踪误差不敏感,此外,滤波器的ω0对FTFN的电压跟踪误差不敏感。多功能滤波器的所有输出均具有高输出阻抗,因此合成电流模式滤波器可以级联,而无需额外的缓冲器。通过PSPICE仿真验证了理论结果。

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