MAINS VOLTAGE DISCRIMINATION DEVICE

摘要

12 Mains-voltage discrimination device. A mains-voltage discrimination device for adapting a load (8) to a lower or higher alternatingvoltage range is described. Discrimination is effected by means of a voltage-dependent resistor (1) which is thermally coupled to a PTC-resistor (2) which is electrically arranged in series with said voltage-dependent resistor (1), the resistors (1,2) being chosen so that initially the dissipation is mainly determined by the voltage-dependent resistor (1).