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Reduction of the Number of Power Amplifiers for an Advanced Single-stage Planar Actuator
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| Author(s) |
Anton DRIESSEN, Korneel WIJNANDS, Jorge DUARTE, Maurice ROES |
| Abstract |
Moving-magnet planar actuators typically have many stator coils, of which the current is controlled individually. Only the coils that lie directly underneath the translator have to be powered. Hence a large reduction in the number of power amplifiers is possible, thereby reducing system complexity and cost as well. A multiplexer topology based on solid-state switches is proposed to be able to use a minimal amount of amplifiers. Active leakage current reduction circuitry is proposed to prevent amplifier performance degradation by the multiplexer. A high common mode rejection current transformer is designed and built for the measurement of the induced noise current. |
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| Filename: | 0242-epe2011-full-10384267.pdf |
| Filesize: | 1.184 MB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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