Version 4 SHEET 1 2024 916 WIRE 1504 -816 -80 -816 WIRE 128 -704 -16 -704 WIRE 208 -704 128 -704 WIRE 304 -704 304 -720 WIRE 304 -704 208 -704 WIRE 352 -704 304 -704 WIRE 464 -704 432 -704 WIRE 512 -704 464 -704 WIRE 624 -704 512 -704 WIRE 672 -704 624 -704 WIRE 784 -704 672 -704 WIRE 832 -704 784 -704 WIRE 944 -704 832 -704 WIRE 992 -704 944 -704 WIRE 1104 -704 992 -704 WIRE 1152 -704 1104 -704 WIRE 1264 -704 1152 -704 WIRE 1312 -704 1264 -704 WIRE 1616 -704 1616 -720 WIRE 1616 -704 1312 -704 WIRE 208 -688 208 -704 WIRE 304 -688 304 -704 WIRE 512 -688 512 -704 WIRE 672 -688 672 -704 WIRE 832 -688 832 -704 WIRE 992 -688 992 -704 WIRE 1152 -688 1152 -704 WIRE 1312 -688 1312 -704 WIRE 128 -656 128 -704 WIRE 304 -608 304 -624 WIRE 512 -608 512 -624 WIRE 672 -608 672 -624 WIRE 832 -608 832 -624 WIRE 992 -608 992 -624 WIRE 1152 -608 1152 -624 WIRE 1312 -608 1312 -624 WIRE 208 -592 208 -608 WIRE 464 -576 464 -704 WIRE 624 -576 624 -704 WIRE 784 -576 784 -704 WIRE 944 -576 944 -704 WIRE 1104 -576 1104 -704 WIRE 1264 -576 1264 -704 WIRE 128 -544 128 -592 WIRE 144 -544 128 -544 WIRE 128 -528 128 -544 WIRE 208 -480 208 -496 WIRE 272 -480 272 -496 WIRE 272 -480 208 -480 WIRE 208 -464 208 -480 WIRE 464 -464 464 -496 WIRE 624 -464 624 -496 WIRE 784 -464 784 -496 WIRE 944 -464 944 -496 WIRE 1104 -464 1104 -496 WIRE 1264 -464 1264 -496 WIRE 128 -432 128 -448 WIRE 400 -416 352 -416 WIRE 560 -416 400 -416 WIRE 720 -416 560 -416 WIRE 880 -416 720 -416 WIRE 1040 -416 880 -416 WIRE 1200 -416 1040 -416 WIRE -80 -368 -80 -816 WIRE -80 -368 -144 -368 WIRE 208 -368 208 -384 WIRE 208 -368 128 -368 WIRE 272 -368 272 -480 WIRE 288 -368 272 -368 WIRE 1712 -368 1664 -368 WIRE 1808 -368 1712 -368 WIRE -144 -352 -144 -368 WIRE 208 -352 208 -368 WIRE 464 -352 464 -368 WIRE 624 -352 624 -368 WIRE 624 -352 464 -352 WIRE 784 -352 784 -368 WIRE 784 -352 624 -352 WIRE 944 -352 944 -368 WIRE 944 -352 784 -352 WIRE 1104 -352 1104 -368 WIRE 1104 -352 944 -352 WIRE 1264 -352 1264 -368 WIRE 1264 -352 1104 -352 WIRE 1808 -352 1808 -368 WIRE -80 -336 -80 -368 WIRE 1264 -336 1264 -352 WIRE 1664 -336 1664 -368 WIRE 1712 -336 1712 -368 WIRE 464 -320 464 -352 WIRE 464 -320 352 -320 WIRE 128 -304 128 -368 WIRE 144 -304 128 -304 WIRE -16 -272 -16 -704 WIRE -144 -256 -144 -272 WIRE -80 -256 -80 -272 WIRE -80 -256 -144 -256 WIRE -48 -256 -80 -256 WIRE 1616 -256 1616 -704 WIRE 1664 -256 1664 -272 WIRE 1664 -256 1616 -256 WIRE -144 -240 -144 -256 WIRE 96 -240 96 -256 WIRE 96 -240 16 -240 WIRE 208 -240 208 -256 WIRE 208 -240 96 -240 WIRE 1264 -240 1264 -256 WIRE 1408 -240 1264 -240 WIRE 1504 -240 1504 -816 WIRE 1504 -240 1408 -240 WIRE 1520 -240 1504 -240 WIRE 1808 -240 1808 -272 WIRE 1888 -240 1808 -240 WIRE -64 -224 -80 -224 WIRE -48 -224 -64 -224 WIRE 208 -224 208 -240 WIRE 1264 -224 1264 -240 WIRE 1408 -224 1408 -240 WIRE 1504 -224 1504 -240 WIRE 1712 -224 1712 -272 WIRE 1712 -224 1616 -224 WIRE 1888 -224 1888 -240 WIRE 1664 -208 1664 -256 WIRE 1712 -208 1712 -224 WIRE 1808 -208 1808 -240 WIRE 144 -176 128 -176 WIRE 464 -160 352 -160 WIRE -144 -144 -144 -160 WIRE -64 -144 -64 -224 WIRE 464 -128 464 -160 WIRE 624 -128 464 -128 WIRE 784 -128 624 -128 WIRE 944 -128 784 -128 WIRE 1104 -128 944 -128 WIRE 1264 -128 1264 -144 WIRE 1264 -128 1104 -128 WIRE 1504 -128 1504 -144 WIRE 128 -112 128 -176 WIRE 208 -112 208 -128 WIRE 208 -112 128 -112 WIRE 288 -112 272 -112 WIRE 464 -112 464 -128 WIRE 624 -112 624 -128 WIRE 784 -112 784 -128 WIRE 944 -112 944 -128 WIRE 1104 -112 1104 -128 WIRE 1264 -112 1264 -128 WIRE 1408 -112 1408 -144 WIRE 1664 -112 1664 -144 WIRE 1712 -112 1712 -144 WIRE 1712 -112 1664 -112 WIRE 1808 -112 1808 -128 WIRE 1808 -112 1712 -112 WIRE 208 -96 208 -112 WIRE 400 -64 352 -64 WIRE 560 -64 400 -64 WIRE 720 -64 560 -64 WIRE 880 -64 720 -64 WIRE 1040 -64 880 -64 WIRE 1200 -64 1040 -64 WIRE -64 -48 -64 -64 WIRE 128 -32 128 -48 WIRE 1408 -32 1408 -48 WIRE 208 0 208 -16 WIRE 272 0 272 -112 WIRE 272 0 208 0 WIRE 208 16 208 0 WIRE 272 16 272 0 WIRE 464 16 464 -16 WIRE 624 16 624 -16 WIRE 784 16 784 -16 WIRE 944 16 944 -16 WIRE 1104 16 1104 -16 WIRE 1264 16 1264 -16 WIRE 128 64 128 48 WIRE 144 64 128 64 WIRE 128 112 128 64 WIRE 208 128 208 112 WIRE 304 144 304 128 WIRE 512 144 512 128 WIRE 672 144 672 128 WIRE 832 144 832 128 WIRE 992 144 992 128 WIRE 1152 144 1152 128 WIRE 1312 144 1312 128 WIRE -16 224 -16 -208 WIRE 128 224 128 176 WIRE 128 224 -16 224 WIRE 208 224 208 208 WIRE 208 224 128 224 WIRE 304 224 304 208 WIRE 304 224 208 224 WIRE 352 224 304 224 WIRE 464 224 464 96 WIRE 464 224 432 224 WIRE 512 224 512 208 WIRE 512 224 464 224 WIRE 624 224 624 96 WIRE 624 224 512 224 WIRE 672 224 672 208 WIRE 672 224 624 224 WIRE 784 224 784 96 WIRE 784 224 672 224 WIRE 832 224 832 208 WIRE 832 224 784 224 WIRE 944 224 944 96 WIRE 944 224 832 224 WIRE 992 224 992 208 WIRE 992 224 944 224 WIRE 1104 224 1104 96 WIRE 1104 224 992 224 WIRE 1152 224 1152 208 WIRE 1152 224 1104 224 WIRE 1264 224 1264 96 WIRE 1264 224 1152 224 WIRE 1312 224 1312 208 WIRE 1312 224 1264 224 WIRE 1616 224 1616 -224 WIRE 1616 224 1312 224 WIRE 304 240 304 224 WIRE 1616 240 1616 224 FLAG 1616 -720 VCC FLAG 1616 240 VDD FLAG -64 -48 0 FLAG 1408 -32 0 FLAG 1504 -128 0 FLAG 304 240 VDD2 FLAG 304 -720 VCC2 FLAG -80 -224 IN FLAG 96 -256 OP FLAG 1520 -240 OUT FLAG 272 -496 Q1 FLAG 272 16 Q2 FLAG 128 -432 0 FLAG 128 -48 0 FLAG 304 -608 0 FLAG 512 -608 0 FLAG 672 -608 0 FLAG 832 -608 0 FLAG 992 -608 0 FLAG 1152 -608 0 FLAG 1312 -608 0 FLAG 1312 128 0 FLAG 1152 128 0 FLAG 992 128 0 FLAG 832 128 0 FLAG 672 128 0 FLAG 512 128 0 FLAG 304 128 0 FLAG 1888 -224 0 FLAG -144 -144 0 SYMBOL npn 144 -352 R0 SYMATTR InstName Q1 SYMATTR Value 2N2222 SYMBOL pnp 144 -128 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q2 SYMATTR Value 2N2907 SYMBOL res 224 -480 M0 SYMATTR InstName R1 SYMATTR Value {R} SYMBOL res 224 -112 M0 SYMATTR InstName R2 SYMATTR Value {R} SYMBOL npn 288 -416 R0 SYMATTR InstName Q5 SYMATTR Value 2N2222 SYMBOL pnp 288 -64 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q6 SYMATTR Value 2N2907 SYMBOL pnp 400 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q7 SYMATTR Value 2SAR542P SYMBOL npn 400 -112 R0 SYMATTR InstName Q8 SYMATTR Value 2SCR542P SYMBOL pnp 560 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q9 SYMATTR Value 2SAR542P SYMBOL npn 560 -112 R0 SYMATTR InstName Q10 SYMATTR Value 2SCR542P SYMBOL pnp 720 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q11 SYMATTR Value 2SAR542P SYMBOL npn 720 -112 R0 SYMATTR InstName Q12 SYMATTR Value 2SCR542P SYMBOL pnp 880 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q13 SYMATTR Value 2SAR542P SYMBOL npn 880 -112 R0 SYMATTR InstName Q14 SYMATTR Value 2SCR542P SYMBOL pnp 1040 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q15 SYMATTR Value 2SAR542P SYMBOL npn 1040 -112 R0 SYMATTR InstName Q16 SYMATTR Value 2SCR542P SYMBOL res 1280 0 M0 SYMATTR InstName R18 SYMATTR Value 0.22 SYMBOL Opamps\\OP27 -16 -304 R0 SYMATTR InstName U1 SYMBOL res -128 -256 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R23 SYMATTR Value 19k SYMBOL res -128 -144 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R24 SYMATTR Value 1k SYMBOL cap -64 -336 M0 SYMATTR InstName C2 SYMATTR Value 1p SYMBOL res 1392 -240 R0 SYMATTR InstName R21 SYMATTR Value 10 SYMBOL res 1488 -240 R0 SYMATTR InstName R22 SYMATTR Value 4 SYMBOL cap 1392 -112 R0 SYMATTR InstName C1 SYMATTR Value 100n SYMBOL voltage -64 -160 M0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value SINE(0 1.4 1 5) SYMBOL voltage 1808 -368 R0 WINDOW 123 0 0 Left 2 WINDOW 39 29 106 Left 2 WINDOW 3 27 83 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName V2 SYMATTR Value SINE(0 42 50) SYMBOL diode 1696 -272 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D5 SYMBOL diode 1680 -144 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D4 SYMBOL diode 1696 -208 R0 SYMATTR InstName D6 SYMBOL diode 1680 -336 M0 SYMATTR InstName D3 SYMBOL res 1248 -352 R0 SYMATTR InstName R19 SYMATTR Value 0.22 SYMBOL res 1248 -240 R0 SYMATTR InstName R20 SYMATTR Value 0.22 SYMBOL pnp 144 -496 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q3 SYMATTR Value 2N2907 SYMBOL LED 144 -656 M0 SYMATTR InstName D1 SYMATTR Value QTLP690C SYMATTR Description Diode SYMATTR Type diode SYMBOL res 192 -704 R0 SYMATTR InstName R3 SYMATTR Value 200 SYMBOL res 144 -544 M0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL res 192 224 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 200 SYMBOL res 144 64 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL LED 144 112 M0 SYMATTR InstName D2 SYMATTR Value QTLP690C SYMATTR Description Diode SYMATTR Type diode SYMBOL npn 144 16 R0 SYMATTR InstName Q4 SYMATTR Value 2N2222 SYMBOL res 448 -688 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R25 SYMATTR Value 100 SYMBOL res 448 240 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R26 SYMATTR Value 100 SYMBOL res 480 -592 M0 SYMATTR InstName R7 SYMATTR Value 0.22 SYMBOL res 480 0 M0 SYMATTR InstName R8 SYMATTR Value 0.22 SYMBOL pnp 1200 -368 M180 WINDOW 0 55 32 Left 2 WINDOW 3 55 69 Left 2 SYMATTR InstName Q17 SYMATTR Value 2SAR542P SYMBOL npn 1200 -112 R0 SYMATTR InstName Q18 SYMATTR Value 2SCR542P SYMBOL res 640 -592 M0 SYMATTR InstName R9 SYMATTR Value 0.22 SYMBOL res 640 0 M0 SYMATTR InstName R10 SYMATTR Value 0.22 SYMBOL res 800 -592 M0 SYMATTR InstName R11 SYMATTR Value 0.22 SYMBOL res 800 0 M0 SYMATTR InstName R12 SYMATTR Value 0.22 SYMBOL res 960 -592 M0 SYMATTR InstName R13 SYMATTR Value 0.22 SYMBOL res 960 0 M0 SYMATTR InstName R14 SYMATTR Value 0.22 SYMBOL res 1120 -592 M0 SYMATTR InstName R15 SYMATTR Value 0.22 SYMBOL res 1120 0 M0 SYMATTR InstName R16 SYMATTR Value 0.22 SYMBOL res 1280 -592 M0 SYMATTR InstName R17 SYMATTR Value 0.22 SYMBOL cap 1296 -688 R0 SYMATTR InstName C3 SYMATTR Value 6.8m SYMBOL cap 1296 144 R0 SYMATTR InstName C4 SYMATTR Value 6.8m SYMBOL cap 1136 -688 R0 SYMATTR InstName C5 SYMATTR Value 6.8m SYMBOL cap 1136 144 R0 SYMATTR InstName C6 SYMATTR Value 6.8m SYMBOL cap 976 -688 R0 SYMATTR InstName C7 SYMATTR Value 6.8m SYMBOL cap 976 144 R0 SYMATTR InstName C8 SYMATTR Value 6.8m SYMBOL cap 816 -688 R0 SYMATTR InstName C9 SYMATTR Value 6.8m SYMBOL cap 816 144 R0 SYMATTR InstName C10 SYMATTR Value 6.8m SYMBOL cap 656 -688 R0 SYMATTR InstName C11 SYMATTR Value 6.8m SYMBOL cap 656 144 R0 SYMATTR InstName C12 SYMATTR Value 6.8m SYMBOL cap 496 -688 R0 SYMATTR InstName C13 SYMATTR Value 6.8m SYMBOL cap 496 144 R0 SYMATTR InstName C14 SYMATTR Value 6.8m SYMBOL cap 288 -688 R0 SYMATTR InstName C15 SYMATTR Value 1m SYMBOL cap 288 144 R0 SYMATTR InstName C16 SYMATTR Value 1m SYMBOL voltage 1808 -224 R0 WINDOW 123 0 0 Left 2 WINDOW 39 29 106 Left 2 WINDOW 3 27 83 Left 2 SYMATTR SpiceLine Rser=0.1 SYMATTR InstName V3 SYMATTR Value SINE(0 42 50) TEXT 1672 -24 Left 2 !.tran 0 10 TEXT 1672 24 Left 2 !.temp 25 50 75 100 TEXT 1672 0 Left 2 !.param R 200