Design of the Power Amplifier for Magnetic Bearings Based on the Three-level PWM Modulation
Xiaodan Ren, Qiang Yin, Yue Yu, Hao Pang, Zecheng Xiong, Qiliang Zhao
Available Online April 2015.
- https://doi.org/10.2991/icmra-15.2015.130How to use a DOI?
- Electronics; Three-level; PWM modulation; Power amplifier; Magnetic bearings
- As it is scant for the linear power amplifier and the two-level switching power amplifier, the principle is analyzed for the three-level power amplifier. It is proposed for the power amplifier for magnetic bearings based on the three-level PWM modulation technique. The circuit is designed for the implementation of the function. The two triangular carriers are formed by the triangular wave superimposing the positive and negative voltage bias, and then, the two drives are formed by comparing the current error signal and the two triangular carriers based on the voltage comparator. The experiment results show that the method can achieve the three-level work, reduce the output current ripple, and have good characteristics. The conclusions have some guiding significance to the design of the three-level power amplifier for magnetic bearings.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Xiaodan Ren AU - Qiang Yin AU - Yue Yu AU - Hao Pang AU - Zecheng Xiong AU - Qiliang Zhao PY - 2015/04 DA - 2015/04 TI - Design of the Power Amplifier for Magnetic Bearings Based on the Three-level PWM Modulation BT - Proceedings of the 3rd International Conference on Mechatronics, Robotics and Automation PB - Atlantis Press SP - 672 EP - 675 SN - 2352-538X UR - https://doi.org/10.2991/icmra-15.2015.130 DO - https://doi.org/10.2991/icmra-15.2015.130 ID - Ren2015/04 ER -