Title :
Design of a voice coil motor used in the focusing system of a digital video camera
Author :
Yu, Hsing-Cheng ; Lee, Tzung-Yuan ; Wang, Shyh-Jier ; Lai, Mei-Lin ; Ju, Jau-Jiu ; Huang, Der-Ray ; Lin, Shir-Kuan
Author_Institution :
OES/ITRI, Hsinchu, Taiwan
Abstract :
This paper raises a valid method to design a voice coil motor (VCM) used in the focusing system of a digital video camera (DVC). A better VCM performance, such as lower battery consumption, higher efficiency, and shorter focusing time, can be achieved by turning the diameter of a winding coil, the thickness of the magnet, and the winding spaces in a VCM.
Keywords :
electron beam focusing; machine control; magnetic devices; permanent magnets; video cameras; battery consumption; digital video camera; focusing system; magnet thickness; voice coil motor; winding coil; winding spaces; Batteries; Coils; Control engineering; Design methodology; Digital cameras; Equations; Inductance; Magnetic fields; Permanent magnets; Voltage; Battery consumption; digital video camera; focusing; voice coil motor;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855161
