Design of decoding system to rotary transformer based on AD2S1205

• Main Authors: Li Yulong, Pi Dawei, Yan Mingshuai
• Format: Article
• Language: zho
• Published: National Computer System Engineering Research Institute of China 2018-09-01
• Series: Dianzi Jishu Yingyong
• Subjects: variable-reluctance resolver; decoder chip; CAN industrial network; hardware circuit; C code
• Online Access: http://www.chinaaet.com/article/3000090240
• ISSN: 0258-7998

In order to obtain the rotor position information and speed information of permanent magnet synchronous motor with magnetic resistance rotary transformer，the system of spin decoding is designed.The design is based on decoding chip AD2S1205.Firstly, the working principle of the magnetic resistance rotary transformer is analyzed.Then the hardware circuit of the rotary decoding system is designed, and the rotor position information and motor speed information are calculated by C code.Finally, single chip microcomputer and motor drive plate are used to drive motor rotation.The rotor position information and motor speed information are sent to dSPACE in real time through the CAN bus.The experimental results show that the system can effectively solve the motor rotor position information and the motor speed information.