A study on shunt damping performance, current response, and energy analysis of voice coil motor

Abstract

Electromagnetic shunt damping is a method of damping by connecting a shunt circuit to the terminals of the voice coil motor (VCM). When controlling the VCM current using an amplifier, the control law has a function equivalent to that of a shunt circuit. In this paper, we propose a new method that analyzes not only the performance of conventional shunt vibration control, but also the response performance of generated force and energy consumption for current controlled VCM.