Common Mode Voltage Removal Using New Balancing Technique | Chapter 3 | Emerging Trends in Engineering Research and Technology Vol. 8

 Many industrial and biomedical applications use instrumentation amplifier to condition small signals (in

the range of microvolts) in presence of large common mode voltage (CMV) and offset voltage. It is
important to have the signal as clean as possible to interest. Power-line interference also appears as common of time-varying power-line signal of interest is a major challenging problem in high resolution
biomedical measurement systems. Here, CMV reduction methods are reviewed and a new method of
CMV removal using balancing technique is described in detail. This new method improves total
common mode rejection ratio (CMRR) of system from 10 value. Experimental results show superior results than existing system and can be used to remove CMV of any unknown frequency. detect essential information from the signal of -mode signal. Filtering removal of this 9 to 1011 by reducing CMV nearly to zero CMV

Author (s) Details
 
Nilima Warke, Associate Professor
Department of Instrumentation, Vivekanand Education Society's Institute of Technology (V.E.S.I.T), Chembur, India.

J. M. Nair, Principal
Vivekanand Education Society's Institute of Technology (V.E.S.I.T), Chembur, India

P. P. Vaidya,
Department of Instrumentation and R&D, Vivekanand Education Society's Institute of Technology (V.E.S.I.T), Chembur, India

View Book : http://bp.bookpi.org/index.php/bpi/catalog/book/228