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An analog topology is proposed to implement a comb filter for removal of power-line interference from various low-amplitude biomedical signals. In this proposed methodology, an n-number of all-pass filters (APFs) and an adder circuit are used to suppress n-number of frequencies. All the APFs as well as the adder circuit are designed using a current conveyor to utilize the various properties of the...
This paper presents the design of a dynamic threshold voltage MOS transistor (DTMOS) based ultra-low power comb filter to eliminate the power line interference from biomedical signals like ECG and EEG signals. The approach used to design the comb filter successfully demonstrates the application of low power second generation current conveyor (CCII) whose power consumption is as low as 0.214µW. In...
In this paper, we proposed a number of new inverse highpass (IHP), inverse bandpass (IBP), and inverse lowpass (ILP) filters using second generation current conveyor (CCII) as building blocks. The proposed two topologies can be configured as one of the above mentioned inversed filter by the selection of appropriate admittance. To test the functionality of the proposed multifunction inverse filter,...
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