Electric relay drive device for voltage application and voltage interruption to electric coil of electromechanical relay

摘要

An electrical relay drive for applying voltage to and shutting down an electrical coil of an electromechanical relay communicates with a resistor by supplying a voltage that can be output in a definable period close to or around the zero crossing And a power supply controller that charges the selectable voltage to the capacitor unit that supplies the available current. The microcontroller is configured to supply a boost current, and when a voltage is applied to the electrical coil of the electromechanical relay, the electrical coil initially receives the boost current at a time interval set by the microcontroller, Thereafter, a boosted current is received from an available current supplied via a transistor that receives a control signal from the power supply controller.