Version 4 SHEET 1 1124 1108 WIRE -720 -992 -816 -992 WIRE -720 -960 -720 -992 WIRE -304 -960 -720 -960 WIRE 80 -960 -304 -960 WIRE 256 -960 256 -1008 WIRE 256 -960 80 -960 WIRE 400 -960 256 -960 WIRE -816 -896 -816 -992 WIRE 400 -880 400 -960 WIRE -304 -832 -304 -960 WIRE 128 -816 112 -816 WIRE 400 -816 400 -880 WIRE 400 -816 352 -816 WIRE -720 -784 -720 -960 WIRE -752 -768 -976 -768 WIRE -640 -752 -688 -752 WIRE -416 -752 -640 -752 WIRE -352 -752 -400 -752 WIRE -304 -752 -352 -752 WIRE -192 -752 -304 -752 WIRE 128 -752 -192 -752 WIRE 480 -752 480 -880 WIRE 480 -752 352 -752 WIRE -816 -736 -816 -816 WIRE -752 -736 -816 -736 WIRE 480 -720 480 -752 WIRE 128 -688 32 -688 WIRE 480 -688 480 -720 WIRE 480 -688 352 -688 WIRE -816 -656 -816 -736 WIRE -752 -656 -816 -656 WIRE -640 -656 -640 -752 WIRE -640 -656 -672 -656 WIRE 80 -624 80 -960 WIRE 128 -624 80 -624 WIRE -816 -608 -816 -656 WIRE -816 -464 -816 -528 WIRE -1072 -288 -1168 -288 WIRE -976 -288 -976 -768 WIRE -976 -288 -1072 -288 WIRE 32 -176 32 -688 WIRE 112 -176 32 -176 WIRE 112 -160 32 -160 WIRE 304 -160 176 -160 WIRE -304 80 -736 80 WIRE 80 80 -304 80 WIRE 256 80 256 32 WIRE 256 80 80 80 WIRE 400 80 256 80 WIRE -816 160 -848 160 WIRE -736 160 -736 80 WIRE 400 160 400 80 WIRE -304 208 -304 80 WIRE 128 224 112 224 WIRE 400 224 400 160 WIRE 400 224 352 224 WIRE -736 256 -736 160 WIRE -848 272 -848 160 WIRE -768 272 -848 272 WIRE -624 288 -704 288 WIRE -416 288 -624 288 WIRE -352 288 -400 288 WIRE -304 288 -352 288 WIRE -192 288 -304 288 WIRE 128 288 -192 288 WIRE 480 288 480 160 WIRE 480 288 352 288 WIRE -976 304 -976 -288 WIRE -944 304 -976 304 WIRE -800 304 -864 304 WIRE -768 304 -800 304 WIRE 480 320 480 288 WIRE -848 336 -848 272 WIRE 32 352 32 -160 WIRE 128 352 32 352 WIRE 480 352 480 320 WIRE 480 352 352 352 WIRE -800 400 -800 304 WIRE -624 400 -624 288 WIRE -624 400 -720 400 WIRE -848 416 -848 400 WIRE 80 416 80 80 WIRE 128 416 80 416 WIRE -848 464 -848 416 FLAG 112 224 0 FLAG 544 320 0 FLAG 416 416 0 FLAG 256 -48 0 FLAG -192 352 0 FLAG -736 320 0 FLAG -848 464 0 FLAG -1248 -288 0 FLAG -720 -720 0 FLAG 112 -816 0 FLAG 544 -720 0 FLAG 416 -624 0 FLAG 256 -1088 0 FLAG -192 -688 0 FLAG -816 -464 0 FLAG 304 -160 Out FLAG -1072 -288 Simulated_Diode SYMBOL Misc\\NE555 240 320 R0 SYMATTR InstName U1 SYMBOL voltage 256 48 R180 WINDOW 0 24 96 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL res 384 176 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 20000 SYMBOL cap 544 304 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 0.2µF SYMBOL cap 416 400 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 10nF SYMBOL cap -352 272 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 100nF SYMBOL res -320 192 R0 SYMATTR InstName R6 SYMATTR Value 10k SYMBOL zener -176 352 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value BZX84C6V2L SYMBOL Opamps\\AD824 -736 224 R0 SYMATTR InstName U2 SYMBOL voltage -1152 -288 R90 WINDOW 3 -217 146 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PULSE(0 5 0 5ms 5ms 11ms 32ms 50) SYMBOL res -848 288 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 4k SYMBOL res -704 384 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL res -720 144 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL res -864 320 R0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL Opamps\\AD824 -720 -816 R0 SYMATTR InstName U4 SYMBOL Misc\\NE555 240 -720 R0 SYMATTR InstName U5 SYMBOL voltage 256 -992 R180 WINDOW 0 24 96 Left 2 WINDOW 3 24 16 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value 5 SYMBOL res 384 -864 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R7 SYMATTR Value 20000 SYMBOL cap 544 -736 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 0.2µF SYMBOL cap 416 -640 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 10nF SYMBOL cap -352 -768 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 100nF SYMBOL res -320 -848 R0 SYMATTR InstName R8 SYMATTR Value 10k SYMBOL zener -176 -688 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value BZX84C6V2L SYMBOL res -832 -912 R0 SYMATTR InstName R9 SYMATTR Value 10k SYMBOL res -832 -624 R0 SYMATTR InstName R10 SYMATTR Value 10k SYMBOL res -656 -672 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R11 SYMATTR Value 7.5k SYMBOL Digital\\or 144 -208 R0 SYMATTR InstName A1 TEXT -1186 -606 Left 2 !.tran 1