Efficient Zero-Value-Cross Detection for Single-Phase Mains-Powered Motors: A Comparative Study
Mariusz Pauluk,
Paweł Piątek,
Jerzy Baranowski
Affiliations
Mariusz Pauluk
Faculty of Electrical Engineering, Automatics, Computer Science, and Biomedical Engineering, Department of Automatic Control and Robotics, AGH University of Krakow, al. A. Mickiewicza 30, 30-059 Krakow, Poland
Paweł Piątek
Faculty of Electrical Engineering, Automatics, Computer Science, and Biomedical Engineering, Department of Automatic Control and Robotics, AGH University of Krakow, al. A. Mickiewicza 30, 30-059 Krakow, Poland
Jerzy Baranowski
Faculty of Electrical Engineering, Automatics, Computer Science, and Biomedical Engineering, Department of Automatic Control and Robotics, AGH University of Krakow, al. A. Mickiewicza 30, 30-059 Krakow, Poland
This paper proposes solutions for zero-value-cross detection (ZVCD) in a single-phase mains-powered motor used for high-torque tightening. Four different applications are presented: resistor-polarized digital input, a resistor-polarized optocoupler, comparators steering up the optocoupler, and n-MOSFETs polarizing the optocoupler. The performance of each solution is evaluated in terms of complexity, dimensions, power dissipation, and response time. The n-MOSFET-based solution is found to be the most suitable, providing a simple design, low power dissipation, and almost instantaneous response. This solution meets the project’s requirements for accurate and fast zero-crossing detection.
