SYNCHRONISED UJT TRIGGERING CIRCUIT TO TURN ON SCR AIM: To study the performance of a Synchronized UJT triggering circuit for Half Wave Rectifier and to plot relevant waveforms. APPARATUS: Sl. No. APPARATUS RANGE QUANTITY 1 UJT firing Module 2N 2646 1 7 CRO --- 1 3 REHOSTAT 0-200 OHMS 1 4 Patch chords --- 1 CIRCUIT: R R b2 1k Rc C 1n TX3 Ra 1k 230V 50H z A C S up ply R ectifier V o ltage R egulato r V ac 0 -2 0 V AC A K G 0 -2 0 0 o hm s/2 A E B2 B1 D1 D2 D3 D4 Vz Z e n e r D iode SCR TYN612 2N2646 15v/1W 1 0 0 m ic ro f/ 3 5v 1:1 2 3 0 v :2 0 V C ircuit d iag ram o f U JT as relax atio n o scillato r Theory: Procedure :
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SYNCHRONISED UJT TRIGGERING CIRCUITTO TURN ON SCR
AIM: To study the performance of a Synchronized UJT triggering circuit for Half Wave Rectifier and to plot relevant waveforms. APPARATUS: