Electric circuit for transmission of binary state information from a rail vehicle, uses energy storage devices to deliver current indicating state of mechanical contact

摘要

The electric circuit uses a current regulation circuit to control cleaning current in a mechanical contact (5). The circuit has an inductor (6) and a capacitor (13), which alternately store and return energy depending on the state of a semiconductor switch (10,11). The state is delivered through a coupling (7) with galvanic isolation.