Solid state switch, in particular for railway equipment

Abstract

A solid state switch, in particular for a railroad equipment, including: an isolation boundary, the isolation boundary galvanically isolating a first zone from a second zone; at least one switch, each switch being adapted to switch a current in the first zone between a switch input terminal and a switch output terminal; at least one relay operating signal input terminal adapted to receive an operating signal, the operating signal indicating whether to switch the at least one switch; at least two channels, each channel including: for each switch a switch module in the first zone, each switch module including a switch module input terminal, a switch module output terminal and a semiconductor switch adapted to switch the current between the switch module input terminal and the switch module output terminal; at least one programmable device in the second zone, the at least one programmable device including an input terminal.