SWITCHMODE™ Power Supply Reference Manual

SMPSRMApplication: Efficient Safety Circuit for Electronic BallastC13 100 nF250 V R18 PTCC12 22 nFC14 100 nF250 VAGNDC11 4.7 nF1200 VPTUBE =55 WL1 1.6 mHQ2MJE18004D2R132.2 RT1AFT063 Q3MJE18004D2R142.2 RC92.2 nFR114.7 RC82.2 nFR124.7 RC6 10 nFT1BD3 1N4007DIACD4R1010 RC7 10 nFT1CNOTES: * All resistors are ± 5%, 0.25 Wunless otherwise noted* All capacitors are Polycarbonate, 63 V,± 10%, unless otherwise notedR9330 kR7 1.8 MD2 MUR180ET2D1MUR120R4 22 k+R3100 k/1.0 WR2 1.2 MC4 47 F+Q1500 V/4 A N–ChMOSFET3 182AGNDC2330 F25 V5 7U1MC342623450 V4261C1 10 nFC5 0.22 FP1 20 kR6 1.0 RR5 1.0 RC3 1.0 FR1 12 k1N5407D8D71N5407FUSEC15 100 nFC1647 nFC17 47 nF630 VLINE220 V1N5407D9630 V1N5407D6FILTERFigure 49. Efficient Safety Circuit for Electronic Ballasthttp://onsemi.com53