Version 4 SHEET 1 988 680 WIRE -224 -208 -432 -208 WIRE -80 -208 -224 -208 WIRE 224 -208 -80 -208 WIRE 272 -208 224 -208 WIRE -224 -176 -224 -208 WIRE -80 -176 -80 -208 WIRE 224 -144 224 -208 WIRE 32 -112 -48 -112 WIRE -224 -32 -224 -96 WIRE -80 -32 -80 -112 WIRE -80 -32 -224 -32 WIRE 32 -32 -80 -32 WIRE -224 0 -224 -32 WIRE -224 128 -224 80 WIRE -224 128 -256 128 WIRE -112 128 -224 128 WIRE 32 128 -48 128 WIRE 224 128 224 -64 WIRE 224 128 32 128 WIRE 320 128 224 128 WIRE 32 160 32 128 WIRE -224 208 -224 128 WIRE 224 208 224 128 WIRE 32 256 32 240 WIRE -496 272 -496 224 WIRE -400 272 -496 272 WIRE -256 272 -320 272 WIRE 288 272 256 272 WIRE 432 272 416 272 WIRE 560 272 560 224 WIRE 560 272 512 272 WIRE 560 288 560 272 WIRE 224 352 224 272 WIRE 288 352 224 352 WIRE -224 400 -224 272 WIRE 224 400 224 352 WIRE 416 400 416 352 WIRE 560 400 560 368 FLAG -432 -128 0 FLAG 560 400 0 FLAG 224 400 0 FLAG 320 128 SCR1 IOPIN 320 128 Out FLAG 560 224 Trig IOPIN 560 224 Out FLAG 272 -208 Vcc IOPIN 272 -208 Out FLAG -224 400 0 FLAG -496 352 0 FLAG -496 224 Stop IOPIN -496 224 Out FLAG -256 128 SCR2 IOPIN -256 128 Out FLAG 32 256 0 FLAG 416 400 0 SYMBOL voltage -432 -224 R0 WINDOW 0 53 42 Left 0 WINDOW 3 53 80 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 300 SYMBOL voltage 560 272 R0 WINDOW 0 48 25 Left 0 WINDOW 3 48 59 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PULSE(0 10 0 100n 100n 5µ) SYMBOL res 208 -160 R0 SYMATTR InstName Rload SYMATTR Value 3 SYMBOL res 528 256 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 -58 52 VTop 0 SYMATTR InstName R2 SYMATTR Value 100 SYMBOL cap -48 112 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL res 16 144 R0 SYMATTR InstName R4 SYMATTR Value 30k SYMBOL res -240 -192 R0 SYMATTR InstName R1 SYMATTR Value 30k SYMBOL voltage -496 256 R0 WINDOW 0 40 56 Left 0 WINDOW 3 -172 143 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value PULSE(0 10 50µ 100n 100n 5µ) SYMBOL res -416 288 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL res -240 -16 R0 SYMATTR InstName Rlimit SYMATTR Value 5 SYMBOL SCR\\SCR_S4025L -224 224 R0 WINDOW 0 40 47 Center 0 SYMATTR InstName U2 SYMBOL SCR\\SCR_S4025L 224 224 M0 WINDOW 0 98 45 Center 0 SYMATTR InstName U1 SYMBOL SCR\\SCR_S4004DS1 -80 -160 M0 WINDOW 3 -92 -11 Center 0 WINDOW 0 -64 18 Center 0 SYMATTR Value S4025L SYMATTR InstName U3 SYMBOL ind2 432 368 R180 WINDOW 0 -40 56 Left 0 WINDOW 3 -49 31 Left 0 SYMATTR InstName L1 SYMATTR Value 40µ SYMATTR Type ind SYMBOL ind2 272 256 R0 WINDOW 3 36 69 Left 0 SYMATTR InstName L2 SYMATTR Value 10µ SYMATTR Type ind SYMBOL ind2 16 -128 R0 SYMATTR InstName L3 SYMATTR Value 10µ SYMATTR Type ind TEXT 528 -216 Left 0 !.lib Teccor_SCR.lib TEXT 534 -146 Left 0 !.tran 100µ TEXT 256 240 Left 0 !K1 L1 L2 L3 1