Low frequency DC to AC power converter for e.g. LED lighting, includes pair of capacitors connected in series and to mechanical relay

摘要

u The converter circuit comprises a mechanical relay (4) connected to at least two electrical capacitors (2, 3) that are connected in series. Once the first capacitor is charged, the relay can be actuated, resulting in the immediate discharge of the capacitor pair, which in turn causes an immediate reduction in the voltage and current through the relay coil (5), so that this coil returns to its original position. An alternating voltage can be taken between the positive terminal of the direct voltage source (1) and the normal of the relay.