Indian Journal of Science and Technology
DOI: 10.17485/ijst/2015/v8i12/65739
Year: 2015, Volume: 8, Issue: 12, Pages:
Original Article
N. Sriram* , P. Swaminathan and D. Manivannan
School of Computing, SASTRA University, Thanjavur, 613401, India; sriram18.natarajan@gmail.com
Voice Coil Motor is a precise positioning and motion control device, the drive electronics must be of utmost accuracy such that it accounts for the exact requirements of the motor load. This work mainly focuses on the design and analysis of a current mode based operational amplifier, which is expected to generate the precise magnitudes of current. An improved Howland current pump, current drive based amplifier is theoretically analyzed and the analog simulation is performed. A novel hardware scheme is proposed which is suitable for VCM testing and the methodology to develop the hardware is also emphasized.
Keywords: Analog Simulation, Current Drive Amplifier, Current Pump, Drive Electronics, Improved Howland Voice Coil Motor (VCM)
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