CIRCUIT ARRANGEMENT WITH POWER FACTOR CORRECTION, AS WELL AS A CORRESPONDING APPLIANCE

摘要

The circuit arrangement has a mains connection (NA), a mains switch (S1) and a switched-mode power supply which contains a power factor coil (NS) for power factor correction. The switching contact (3) of a relay (R1) is arranged in parallel with the first switching contact (1) of the mains switch (S1), and the control coil (ST) of this relay (R1) is connected to an output voltage of the switched-mode power supply. Since the output voltages of the switched-mode power supply are each buffered by a capacitor, the relay is thus still open for a certain time after the arrangement has been switched off. The energy which is stored in the power factor coil is thus dissipated by the relay, by the coil drawing the current which is required to dissipate the energy from the mains via the relay.