6.SchematicDiagrams
3)IC1S01Vcccircuit
a)ICIS01,RIS05,RIS07,RIS08:ICIS01drivingresistance(ICIS01worksthroughdrivingresistanceatpowercordin)
b)ICIS01Vcc:RIS05,RIS07,RIS08
i)UsetheoutputoftransformerasVcc,becausethecurrentstartstoowintotransformerwhileICIS01isactive
ii)RectifytoDIS07andsmoothtoCIS09.
iii)UsetheoutputoftransformerasICIS01Vcc:TheloadsaredifferentbeforeandafterICIS01driving.(VccofICIS01decreasesbelowOFFvoltage,usingonlytheresistanceduttolodeincreaseafterICIS01driving.)
4)FeedbackControlCircuit
a)F/BTerminalofIC1determinesoutputdutycycle.
b)C-E(Collector-Emitter)ofandF/BpotentialofPQIZ1aresame.
6-4Copyright©1995-2012SAMSUNG.Allrightsreserved.
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