Research and Design on the ECG Amplifying and Filtering Circuit

The defect in design and implementation of virtual electrocardiogram testing instrument is introduced,the scheme and design requirement of the ECC amplifying and filtering circuit is provided,and the detailed design process of function modules: pre-amplifier circuit,high-pass filter,notch filter,main amplifier and low-pass filter are presented.The amplifying and filtering circuit controls the interrelated interference in ECG,and improves the imaging quality of virtual instrument for ECG signal.