Design and Analysis of Current Mode Amplifier as Drive Electronics for Linear Voice Coil Motor

N  Sriram; P  Swaminathan and D  Manivannan

doi:10.17485/ijst/2015/v8i12/65739

Article

Design and Analysis of Current Mode Amplifier as Drive Electronics for Linear Voice Coil Motor

VIEWS 830
PDF 438

Abstract
Full-Text HTML
Full-Text PDF
How to Cite

Indian Journal of Science and Technology

DOI: 10.17485/ijst/2015/v8i12/65739

Year: 2015, Volume: 8, Issue: 12, Pages:

Original Article

Design and Analysis of Current Mode Amplifier as Drive Electronics for Linear Voice Coil Motor

N. Sriram^* , P. Swaminathan and D. Manivannan

School of Computing, SASTRA University, Thanjavur, 613401, India; sriram18.natarajan@gmail.com

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

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)