Download - DIAC & TRIAC CHARACTERSTICS
DIAC & TRIAC CHARACTERSTICS
Presented by N.MANIKANTA BABU(13MPE0074)DIAC & TRIAC CHARACTERSTICSThe DIAC is a combination of two diodes.Diodes is unidirectional devices, conduct current only in one direction.DIAC is a bidirectional device, conducts currrent in both directions
DIAC CHARACTERSTICSDIACDIODE FOR ALTERNATING CURRENTSYMBOLBASIC STRUCTURE
In first quadrant, T1 is positive with respect to T2In third quadrant,T2 is positive with respect to T1V-I CHARACTERSTICS
T1T2SIMULINK CIRCUIT
OUTPUT WAVE FORM
The TRIAC is a combination of two thyristor.Thyristor is unidirectional devices, conduct current only in one direction.TRIAC is a bidirectional device, conducts current in both directionsTRIAC CHARACTERSTICSTRIACTRIODE FOR ALTERNATING CURRENTBASIC STRUCTURE SYMBOL
Internal Gate Terminal Connection
TRIGGERING MODES OF TRIACMT2 is +VE,GATE is +VE(MODE1)MT2 is+VE, GATE is VE(MODE2)
MT2 is VE,GATE is +VE(MODE 3)MT2 is VE,GATE is VE(MODE 4)
V-I CHARACTERISTICS
SIMULINK CIRCUIT
OUTPUT WAVE FORM
APPLICATIONS:Light dimmersSpeed controls for electric fansA.C Regulators
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