Line operated fluorescent lamp inverter ballast

摘要: Ballast circuit for fluorescent lights made up of the combination a source electrical energy (32, 33), resonant (18, 22), switch means (11, 12) connecting electricity 33) to (20) connect 22) load (55), current monitor (13) controlling in synchronism with so that switches when passes through zero. The is transformer having primary winding (14) connected series and two secondary windings (15, 16) bases (35, 43) switching transistors transistor inverter at polarity will one on other off time This optimum since flowing passingthrough zero therefore operate maximum efficiency there are minimum losses improves circuit. automatically adjust frequency changed should value inductor or capacitor degrade change, be maintained minimum.