Version 4 SHEET 1 2288 2956 WIRE 208 0 192 0 WIRE 320 0 288 0 WIRE 400 0 320 0 WIRE 560 0 480 0 WIRE 672 0 560 0 WIRE 880 0 672 0 WIRE 672 32 672 0 WIRE 672 32 592 32 WIRE 752 32 672 32 WIRE 880 32 880 0 WIRE 192 96 192 0 WIRE 592 128 592 32 WIRE 752 128 752 32 WIRE 880 128 880 112 WIRE 672 176 672 112 WIRE 592 256 592 192 WIRE 672 256 672 240 WIRE 672 256 592 256 WIRE 752 256 752 192 WIRE 752 256 672 256 WIRE 192 288 192 176 WIRE 464 288 464 272 WIRE 464 288 192 288 WIRE 672 288 672 256 WIRE 672 288 464 288 WIRE 192 304 192 288 FLAG 192 304 0 FLAG 320 0 A FLAG 560 0 B SYMBOL voltage 192 80 R0 WINDOW 0 10 -1 Left 2 WINDOW 3 9 103 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 9 131 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 325 50) SYMATTR SpiceLine Rser=1 SYMBOL res 384 16 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName Rload SYMATTR Value 10 SYMBOL voltage 464 176 R0 WINDOW 0 24 96 Left 2 WINDOW 3 -79 136 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 10 5m 1u 1u 20u 20m) SYMBOL res 560 176 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 100 SYMBOL Misc\\SCR 576 128 R0 WINDOW 0 27 6 Left 2 WINDOW 3 -67 4 Left 2 SYMATTR InstName U1 SYMATTR Value S602ES SYMBOL Misc\\SCR 768 192 R180 WINDOW 0 32 32 Left 2 WINDOW 3 -67 5 Left 2 SYMATTR InstName U2 SYMATTR Value S602ES SYMBOL voltage 880 128 R180 WINDOW 0 24 96 Left 2 WINDOW 3 -95 151 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value PULSE(0 10 15m 1u 1u 20u 20m) SYMBOL res 896 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL res 656 16 R0 SYMATTR InstName R4 SYMATTR Value 150 SYMBOL cap 656 176 R0 SYMATTR InstName C1 SYMATTR Value 100n SYMBOL ind 192 16 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 100µ TEXT 184 352 Left 2 !.tran .3 TEXT 392 56 Left 2 ;Heater TEXT 1008 -16 Left 2 !.SUBCKT S602ES 1 2 3\n* TERMINALS: A G K\nQpnp 6 4 1 Pfor OFF\nQnpn 4 6 5 Nfor OFF\nRfor 6 4 5G\nRrev 1 4 5G\nRshort 6 5 1MEG\nRlat 2 6 9.09\nRon 3 5 211.3m\nDfor 6 4 Zbrk\nDrev 1 4 Zbrk\nDgate 6 5 Zgate\n.MODEL Zbrk D (IS=3.2E-16 IBV=100U BV=600)\n.MODEL Zgate D (IS=1E-16 IBV=100U BV=10 VJ=0.3)\n.MODEL Pfor PNP(IS=5E-15 BF=1.10 CJE=10p CJC=5p TF=0.3U)\n.MODEL Nfor NPN(IS=1E-12 ISE=1E-9 BF=10.0 RC=0.45 CJE=100p CJC=5p TF=0.3U)\n.ENDS TEXT 424 448 Left 2 ;Thyristor model downloaded from:\nhttp://www.littelfuse.com/technical-resources/spice-models/thyristor-spice-models.aspx