Switching arrangement for phase exact switching of alternating voltage, has relay with switching contact lying in load current cycle, where load current cycle has pair of connections

摘要

The switching arrangement (10) has a relay (70) with a switching contact (72) lying in a load current cycle, where load current cycle has a pair of connections (80,82) for the creation of an alternating voltage (V-ac). A pulse width modulation current driver (20) is connected with the relay, which has an input (22) for creation of an enabling signal (V-en).