Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems
In this paper, we investigate the effect of voltage and current amplifiers for PZT microactuators on the control performance of dual-stage servo systems in hard disk drives (HDDs), where the PZT microactuator is used as a secondary actuator and works together with the primary actuator of voice coil...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96973 http://hdl.handle.net/10220/11737 |
| _version_ | 1826121991724204032 |
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| author | Gao, Tingting Du, Chunling Xie, Lihua |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Gao, Tingting Du, Chunling Xie, Lihua |
| author_sort | Gao, Tingting |
| collection | NTU |
| description | In this paper, we investigate the effect of voltage and current amplifiers for PZT microactuators on the control performance of dual-stage servo systems in hard disk drives (HDDs), where the PZT microactuator is used as a secondary actuator and works together with the primary actuator of voice coil motor (VCM). First, the PZT microactuator's behavior in terms of motion linearization and frequency responses is experimentally studied and compared when it is driven by a conventional voltage amplifier and a charge or current amplifier. It is found that the PZT microactuator with current amplifier has less hysteresis than with voltage amplifier and its first resonance is relatively smaller. Inspired by this difference, the control performance of the dual-stage servo systems in track-seeking and track-following is then compared between the two driving methods for the PZT microactuator. |
| first_indexed | 2024-10-01T05:41:12Z |
| format | Conference Paper |
| id | ntu-10356/96973 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:41:12Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/969732020-03-07T13:24:47Z Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems Gao, Tingting Du, Chunling Xie, Lihua School of Electrical and Electronic Engineering International Conference on Control Automation Robotics & Vision (12th : 2012 : Guangzhou, China) DRNTU::Engineering::Electrical and electronic engineering In this paper, we investigate the effect of voltage and current amplifiers for PZT microactuators on the control performance of dual-stage servo systems in hard disk drives (HDDs), where the PZT microactuator is used as a secondary actuator and works together with the primary actuator of voice coil motor (VCM). First, the PZT microactuator's behavior in terms of motion linearization and frequency responses is experimentally studied and compared when it is driven by a conventional voltage amplifier and a charge or current amplifier. It is found that the PZT microactuator with current amplifier has less hysteresis than with voltage amplifier and its first resonance is relatively smaller. Inspired by this difference, the control performance of the dual-stage servo systems in track-seeking and track-following is then compared between the two driving methods for the PZT microactuator. 2013-07-17T06:32:39Z 2019-12-06T19:37:30Z 2013-07-17T06:32:39Z 2019-12-06T19:37:30Z 2012 2012 Conference Paper Gao, T., Du, C., & Xie, L. (2012). Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems. 2012 12th International Conference on Control Automation Robotics & Vision (ICARCV), 1669 - 1674. https://hdl.handle.net/10356/96973 http://hdl.handle.net/10220/11737 10.1109/ICARCV.2012.6485430 en © 2012 IEEE. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Gao, Tingting Du, Chunling Xie, Lihua Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title | Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title_full | Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title_fullStr | Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title_full_unstemmed | Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title_short | Control performance comparison of PZT microactuator driven by voltage and current amplifiers in HDD dual-stage systems |
| title_sort | control performance comparison of pzt microactuator driven by voltage and current amplifiers in hdd dual stage systems |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/96973 http://hdl.handle.net/10220/11737 |
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