Switching arrangement for bi-directional measurement of unipolar currents, has transformer with primary winding and secondary winding, where active switch and diode are provided for passing measuring current with direction

摘要

The switching arrangement has a transformer with a primary winding (4) and a secondary winding (6). An active switch (8) and a diode (12) are provided for passing a measuring current with a direction. Another active switch (10) and another diode (14) are provided for passing the measuring current with another direction. A load (18) is provided for passing the measuring current with the former and latter directions and producing a measuring signal. An independent claim is included for a method for bi-directional measurement of unipolar currents.