Version 4 SHEET 1 1764 840 WIRE -368 -64 -608 -64 WIRE -64 -64 -368 -64 WIRE 128 -64 -64 -64 WIRE 224 -64 128 -64 WIRE -608 -32 -608 -64 WIRE -368 -32 -368 -64 WIRE 128 -16 128 -64 WIRE 224 48 224 -64 WIRE -608 80 -608 48 WIRE -544 80 -608 80 WIRE -496 80 -544 80 WIRE -288 80 -496 80 WIRE -128 80 -208 80 WIRE -16 96 -64 96 WIRE 0 96 -16 96 WIRE 32 96 0 96 WIRE 128 96 128 64 WIRE 128 96 112 96 WIRE 160 96 128 96 WIRE -608 112 -608 80 WIRE -128 112 -160 112 WIRE -368 192 -368 48 WIRE -320 192 -368 192 WIRE -288 192 -320 192 WIRE -160 192 -160 112 WIRE -160 192 -208 192 WIRE -128 192 -160 192 WIRE 0 192 0 96 WIRE 0 192 -48 192 WIRE 224 208 224 144 WIRE 272 208 224 208 WIRE 304 208 272 208 WIRE 416 208 384 208 WIRE 592 208 576 208 WIRE 688 208 672 208 WIRE -496 224 -496 80 WIRE -608 240 -608 192 WIRE 416 288 384 288 WIRE 608 288 576 288 WIRE 832 288 768 288 WIRE 928 288 928 256 WIRE 928 288 832 288 WIRE -368 304 -368 192 WIRE 688 320 688 208 WIRE 928 320 928 288 WIRE 768 336 768 288 WIRE 832 336 832 288 WIRE -608 432 -608 320 WIRE -496 432 -496 288 WIRE -496 432 -608 432 WIRE -368 432 -368 384 WIRE -368 432 -496 432 WIRE 384 432 384 288 WIRE 384 432 -368 432 WIRE 608 432 608 288 WIRE 608 432 384 432 WIRE 688 432 688 400 WIRE 688 432 608 432 WIRE 768 432 768 400 WIRE 768 432 688 432 WIRE 832 432 832 400 WIRE 832 432 768 432 WIRE 928 432 928 400 WIRE 928 432 832 432 WIRE 928 448 928 432 WIRE -608 464 -608 432 FLAG -96 128 0 FLAG -96 64 +V FLAG -64 -64 +V IOPIN -64 -64 In FLAG -608 464 0 FLAG -16 96 Vcomp FLAG -544 80 Vset FLAG 928 448 0 FLAG 928 256 +v FLAG -320 192 THntc FLAG 272 208 Vmoc SYMBOL res -32 176 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R8 SYMATTR Value 1meg SYMBOL res -384 -48 R0 SYMATTR InstName R2 SYMATTR Value 22k SYMBOL res -624 -48 R0 SYMATTR InstName R6 SYMATTR Value 22k SYMBOL res -624 96 R0 SYMATTR InstName R9 SYMATTR Value 13.5 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res -624 224 R0 SYMATTR InstName R10 SYMATTR Value 1k SYMBOL res -192 176 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 30 13 VTop 0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL res -192 64 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R7 SYMATTR Value 10k SYMBOL cap -512 224 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL Misc\\battery 928 304 R0 SYMATTR InstName V1 SYMATTR Value 12v SYMBOL cap 816 336 R0 SYMATTR InstName C2 SYMATTR Value 22µ SYMBOL cap 752 336 R0 SYMATTR InstName C3 SYMATTR Value 100n SYMBOL voltage -368 288 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PWL(0 0 .1 5 .2 5 .3 0) SYMBOL res 688 192 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 2 56 VTop 0 SYMATTR InstName R5 SYMATTR Value 350 SYMATTR SpiceLine tol=1 pwr=335 SYMBOL voltage 688 304 R0 WINDOW 3 -68 149 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value SINE(0 315 50) SYMATTR InstName V3 SYMBOL pnp 160 144 M180 SYMATTR InstName Q1 SYMATTR Value BC557B SYMBOL res 128 80 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 2k2 SYMBOL res 112 -32 R0 SYMATTR InstName R12 SYMATTR Value 22k SYMBOL res 400 192 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R13 SYMATTR Value 390 SYMBOL Optos\\MOC3081 464 224 R0 SYMATTR SpiceModel MOC3081 SYMATTR InstName U2 SYMBOL Comparators\\LM339A -96 32 R0 SYMATTR InstName U1 TEXT -576 456 Left 0 !.tran 0 .3 0 1m TEXT -712 152 Left 0 ;20Kpot TEXT -704 280 Left 0 ;2Kpot TEXT 664 168 Left 0 ;Heater 125 Watt TEXT -224 -112 Left 0 ;Original Relay circuit using a MOC3081 option TEXT 704 208 Left 0 ;220Vac 50Hz TEXT 656 480 Left 0 ;Invertor TEXT -320 344 Left 0 ;Therm Sim TEXT 400 96 Left 0 !.include MOC308x.lib TEXT -584 -104 Left 0 !.include LM339A.5_1_ti.txt