The Delta-Sigma Demodulator Module of the XMC4500 Applied to Resolver

Recently, the servo permanent magnet synchronous motor is more widely used, and the rapid development of MCU makes the motor servo system designed simply and reliably. As well known, Servo-controlled motors require position feedback. Resolver is easier to maintain than a traditional position sensor, and it is suitable for working in harsh environmental conditions. The paper proposes a way, which is applied to resolver based on the delta-sigma demodulator module of the XMC4500. At first, the principle of the rotary transformer and the DSD module are introduced. Then, the hardware design and software design of the servo control system with resolver is completed. Finally, experimental results about the rotor position is presented.