Electronic capacitive ballast for fluorescent and other discharge lamps

摘要

An electronic capacitive ballast for fluorescent or other discharge lamps is provided which operates at a leading power factor, energy is conserved, lighting is instantaneous and the fluorescent lamps light up even if the filaments are broken. The fluorescent or other discharge lamps comprise of at least once capacitor having normal values upto 20 mu F. The capacitor is connected to a power source and at least one inductance coil having values upto 5 H. The inductance coil is connected to a starting device for unidirectional passage of current during starting of the fluorescent lamp. The starting device comprises of Triac, silicon controlled rectifier or the like diode and at least one preset resistor. Two sets of output terminals of the starting device are connected to the fluorescent lamp or other discharge lamps. The starting device is connected to the power source.