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Design of Compact Linear Electromagnetic Actuator for Auto-Focusing in Phone Camera.
- Source :
-
IEEE Transactions on Magnetics . Dec2011, Vol. 47 Issue 12, p4740-4744. 5p. - Publication Year :
- 2011
-
Abstract
- This paper proposes a novel linear electromagnetic actuator (LEA) for auto-focusing of compact phone cameras. An LEA consists of permanent magnets, iron cores, and coils, which are all magnetic circuit components. When coils are powered, induced magnetic field generates N and S poles around iron cores. Thus, unlike voice coil motors (VCMs) that employ the Lorentz force, the motion of the moving part in this study is arisen from a property-same poles repel each other while opposite poles attract each other. When compared to conventional VCM actuators in simulation results, the proposed LEA generates larger force, whereas using smaller current. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 47
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 67487696
- Full Text :
- https://doi.org/10.1109/TMAG.2011.2160273