Abstract
This paper presents a new current conveyor (CCII+) full-wave rectifier for low frequency/small signal medical applications. The proposed rectifier is based on the current conveyor full-wave rectifier proposed previously, but the proposed rectifier is better in view of no need diodes to rectify, and no need bias sources to overcome the zero crossing error. It needs only two CCII+s, two resistors, and three simple current mirrors, which is easy for IC implementation and for building in many countries. The PSPICE simulation with the current conveyor CCII+ in the current feedback opamp AD844 IC and the 2N2222 bipolar current mirror shows the good low frequency/small signal rectification, the operation voltage of down to 6 .
Highlights
In the past few decades, medical and biological researches gained more and more attention
This paper presents a new current conveyor (CCII+) full-wave rectifier for low frequency/small signal medical applications
The proposed full-wave rectifier was simulated by using the PSPICE program (OrCAD Release 9.1)
Summary
In the past few decades, medical and biological researches gained more and more attention. Low frequency full-wave rectifiers are important building blocks for small signal processing in biomedical systems These circuits should not introduce any form of distortion that can destroy the information contained. The author presents a new CCII full-wave rectifier for low frequency/small signal medical applications that is better than the previous CCII full-wave rectifiers as follows
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