Objective: In this paper, electrostatically actuated micromechanical switch for battery powered electrical system has been presented. An electrostatically actuated micromechanical switch has been designed and the electromechanical characteristics have been discussed.
Methods: The switching characteristics, power loss and leakage current of the switch have been obtained for 12 V/0.2 A electrical system. In order to meet the high power rating, the designed arcless micromechanical switches have been connected in a scalable cross-tied array configuration and the switching characteristics were obtained for 144 V/3 A electrical system.
Result: The arc existing parts of the micromechanical switch have been identified and the arcless switching has been discussed. The reliability of the switch has been presented based on electromechanical behavior, arcless switching and scalability. The discharging characteristics of battery have been obtained for the circuit having solid-state and micromechanical switch.
Conclusion: The result shows significant improvement in the power loss, battery discharging characteristics and is promising application for battery operated electrical system.
Keywords: Arcless contact, micromechanical switch, microelectrical contact, finite element method, battery operated systems, electrical system.