Version 4 SHEET 1 1376 1704 WIRE 224 -592 160 -592 WIRE 160 -560 160 -592 WIRE 160 -464 160 -480 WIRE 640 -256 624 -256 WIRE 768 -256 752 -256 WIRE 624 -240 624 -256 WIRE 752 -240 752 -256 WIRE 624 -144 624 -160 WIRE 752 -144 752 -160 WIRE -512 0 -576 0 WIRE -368 0 -432 0 WIRE -272 0 -368 0 WIRE 240 0 -272 0 WIRE 352 0 320 0 WIRE 704 0 352 0 WIRE -272 16 -272 0 WIRE -48 64 -96 64 WIRE 80 64 16 64 WIRE 512 80 448 80 WIRE 640 80 576 80 WIRE -272 96 -272 80 WIRE 816 128 816 112 WIRE 704 144 704 0 WIRE 784 144 704 144 WIRE -96 160 -96 64 WIRE -48 160 -96 160 WIRE 80 160 80 64 WIRE 80 160 32 160 WIRE 896 160 848 160 WIRE 944 160 896 160 WIRE 1040 160 1008 160 WIRE 352 176 352 0 WIRE 448 176 448 80 WIRE 512 176 448 176 WIRE 640 176 640 80 WIRE 640 176 592 176 WIRE 784 176 640 176 WIRE -384 192 -496 192 WIRE -368 192 -368 0 WIRE -368 192 -384 192 WIRE 816 208 816 192 WIRE -496 224 -496 192 WIRE 0 288 0 272 WIRE -544 304 -560 304 WIRE -96 304 -96 160 WIRE -32 304 -96 304 WIRE 560 304 560 288 WIRE -560 320 -560 304 WIRE 80 320 80 160 WIRE 80 320 32 320 WIRE 144 320 80 320 WIRE 448 320 448 176 WIRE 448 320 224 320 WIRE 528 320 448 320 WIRE 816 320 816 304 WIRE -496 336 -496 320 WIRE -384 336 -496 336 WIRE -224 336 -384 336 WIRE -32 336 -224 336 WIRE 640 336 640 176 WIRE 640 336 592 336 WIRE 784 336 640 336 WIRE 224 352 224 320 WIRE 352 352 352 240 WIRE 528 352 352 352 WIRE 896 352 848 352 WIRE 944 352 896 352 WIRE 1040 352 1040 160 WIRE 1040 352 1008 352 WIRE 1072 352 1040 352 WIRE -224 368 -224 336 WIRE 0 368 0 352 WIRE 784 368 704 368 WIRE 560 384 560 368 WIRE 352 400 352 352 WIRE 816 400 816 384 WIRE -96 432 -96 304 WIRE 224 448 224 416 WIRE 1040 464 1040 352 WIRE -224 480 -224 448 WIRE 352 512 352 464 WIRE 704 512 704 368 WIRE 704 512 352 512 WIRE 816 528 816 496 WIRE 912 528 816 528 WIRE -96 560 -96 512 WIRE 144 560 144 320 WIRE 224 560 224 528 WIRE 224 560 144 560 WIRE 352 560 352 512 WIRE 816 560 816 528 WIRE 912 560 912 528 WIRE 816 656 816 640 WIRE 912 656 912 624 WIRE 1040 656 1040 544 WIRE -96 672 -96 624 WIRE 352 672 352 640 WIRE -400 848 -512 848 WIRE -352 848 -400 848 WIRE 736 848 688 848 WIRE 800 848 736 848 WIRE -512 880 -512 848 WIRE 800 880 800 848 WIRE 736 896 736 848 WIRE -512 976 -512 960 WIRE -368 976 -512 976 WIRE -512 992 -512 976 WIRE 736 992 736 960 WIRE 800 992 800 960 WIRE 800 992 736 992 WIRE 944 992 800 992 WIRE 800 1024 800 992 WIRE -368 1040 -368 1024 WIRE -512 1072 -512 1056 WIRE -96 1072 -144 1072 WIRE 512 1072 -96 1072 WIRE 640 1072 592 1072 WIRE 736 1072 640 1072 WIRE -368 1088 -448 1088 WIRE 640 1104 640 1072 WIRE -448 1120 -448 1088 WIRE -448 1120 -528 1120 WIRE -400 1120 -400 848 WIRE -368 1120 -400 1120 WIRE -112 1136 -144 1136 WIRE -400 1200 -400 1120 WIRE -368 1200 -400 1200 WIRE 640 1216 640 1184 WIRE 800 1216 800 1120 FLAG -224 480 0 FLAG 352 672 0 FLAG -96 672 0 FLAG 1040 656 0 FLAG 816 112 VCC FLAG 816 304 VCC FLAG 0 272 VCC FLAG 560 288 VCC FLAG 0 368 0 FLAG 560 384 0 FLAG 816 400 0 FLAG 816 208 0 FLAG 1072 352 comp1 IOPIN 1072 352 Out FLAG 816 656 0 FLAG 816 496 VCC FLAG 912 656 0 FLAG -576 0 VCC FLAG -272 96 0 FLAG -384 336 2 FLAG -560 320 sensor1 FLAG 160 -464 0 FLAG 224 -592 sensor1 IOPIN 224 -592 Out FLAG -384 192 1 FLAG -368 1040 0 FLAG -512 1072 0 FLAG -352 848 VCC FLAG -96 1072 mf1 FLAG -528 1120 comp1 IOPIN -528 1120 In FLAG 640 1216 0 FLAG 800 1216 0 FLAG 688 848 VCC FLAG 944 992 relay1 IOPIN 944 992 Out FLAG 896 160 cv1 FLAG 896 352 cv2 FLAG 624 -144 0 FLAG 752 -144 0 FLAG 640 -256 cv1 FLAG 768 -256 cv2 SYMBOL nmos -544 224 R0 SYMATTR InstName M1 SYMATTR Value MOS1 SYMBOL res -240 352 R0 SYMATTR InstName R2 SYMATTR Value 100k SYMBOL res 496 192 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R8 SYMATTR Value 1MEG SYMBOL cap 512 96 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C5 SYMATTR Value .1µ SYMBOL diode 336 400 R0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL diode 336 176 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL res 336 544 R0 SYMATTR InstName R7 SYMATTR Value 100k SYMBOL res 224 16 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R6 SYMATTR Value 100k SYMBOL res 208 432 R0 SYMATTR InstName R5 SYMATTR Value 10k SYMBOL res -112 416 R0 SYMATTR InstName R3 SYMATTR Value 10k SYMBOL res -64 176 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R4 SYMATTR Value 1MEG SYMBOL cap -48 80 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C3 SYMATTR Value .1µ SYMBOL diode 944 176 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D3 SYMATTR Value 1N4148 SYMBOL diode 944 368 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName D4 SYMATTR Value 1N4148 SYMBOL res 1024 448 R0 SYMATTR InstName R9 SYMATTR Value 1MEG SYMBOL voltage 816 544 R0 WINDOW 3 31 86 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value 5 SYMATTR InstName V3 SYMBOL polcap -112 560 R0 SYMATTR InstName C2 SYMATTR Value 10µ SYMBOL polcap 208 352 R0 SYMATTR InstName C4 SYMATTR Value 10µ SYMBOL polcap 896 560 R0 SYMATTR InstName C6 SYMATTR Value 10µ SYMBOL polcap -288 16 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL res -416 -16 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 10k SYMBOL voltage 160 -576 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value PWL pwl value_scale_factor=1 time_scale_factor=.7 FILE=pir_pwl.txt SYMBOL CD4538B -256 912 R0 WINDOW 39 -63 348 Left 0 SYMATTR SpiceLine VDD=5 SPEED=1.0 TRIPDT=100e-6 SYMATTR InstName U10 SYMATTR SpiceModel VCC 0 SYMBOL res -528 864 R0 SYMATTR InstName R10 SYMATTR Value 1MEG SYMBOL cap -528 992 R0 SYMATTR InstName C7 SYMATTR Value 1µ SYMBOL res 496 1088 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R11 SYMATTR Value 10k SYMBOL res 624 1088 R0 SYMATTR InstName R12 SYMATTR Value 10k SYMBOL npn 736 1024 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL ind 784 864 R0 WINDOW 39 36 108 Left 0 SYMATTR SpiceLine Rser=100 SYMATTR InstName LRELAY SYMATTR Value .1 SYMBOL diode 752 960 R180 WINDOW 0 24 72 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName D5 SYMATTR Value 1N4148 SYMBOL Opamps\\LT1491 816 288 R0 SYMATTR InstName U1D SYMBOL Opamps\\LT1491 816 96 R0 SYMATTR InstName U1C SYMBOL Opamps\\LT1491 0 256 R0 SYMATTR InstName U1A SYMBOL Opamps\\LT1491 560 272 R0 SYMATTR InstName U1B SYMBOL res 608 -256 R0 SYMATTR InstName RCV1 SYMATTR Value 1e6 SYMBOL res 736 -256 R0 SYMATTR InstName RCV2 SYMATTR Value 1e6 TEXT -696 -72 Left 0 !.op TEXT -696 -96 Left 0 !.MODEL MOS1 NMOS(Level=1 Kp=20u W=100u L=2u Vto=-1.1 lambda=0.02) TEXT -696 -208 Left 0 !.tran 0 5 0 1m TEXT -392 432 Left 0 ;3 TEXT -416 728 Left 0 ;1 TEXT -528 728 Left 0 ;2 TEXT -528 600 Left 0 ;3 TEXT -688 624 Left 0 ;1 drain\n2 source\n3 ground TEXT -520 560 Left 0 ;BOTTOM VIEW TEXT -536 168 Left 0 ;PIR325 TEXT -680 568 Left 0 ;PIR325 TEXT -696 -712 Left 0 ;Infrared Motion Detector with PIR325\nCircuit from http://www.glolab.com/pirparts/infrared.html\nHelmut Sennewald, \nChanges: Value of R6 and R7 decreased to 100kOhm!\nOpamps changed from LM324 to LT1491.\nRecommendations: This circuit requires a 5V-regulator \n(LM317, LM7805...), because it is very sensitive to changes \non the VCC voltage. It may be also better to replace R7 with \ntwo diodes in series. \nThe ouput voltage swing of the opamp is critical if VCC is\nonly 5V with a CMOS-level input connected to "comp1".\nThe opamps can be replaced with other single supply\nopamps like LM324 if the bias current and the minimum\noutput voltage is sufficient for proper operation of the \nCMOS monoflop. This may require the symbol "opamp2"\nand a SPICE line: .include LM324.lib TEXT -696 -184 Left 0 !.options plotwinsize=0 TEXT 120 -704 Left 0 ;Sensor Pulse Model\n \nAdjust "value_scale_factor" and "time_scale_factor" TEXT -144 1168 Left 0 ;Adjust TRIPDT to speedup the simulation\nRightMouseClick on the symbol body.\nChange the value of TRIPDT to 100e-6 TEXT -688 80 Left 0 ;.options tseed=1m TEXT -696 -152 Left 0 !.options gminsteps=0\n.options method=Gear TEXT 584 -352 Left 0 ;Only required with opamp LT1491 \nto solve a convergence problem.\nThe LT1367 have hadn't this problem. TEXT 528 576 Left 0 ;optional \nreplacement \nfor R7 TEXT 24 -336 Left 0 ;The digital library models need a change \nfor very slow signals. \nAdjust TRIPDT to speedup the simulation\nRightMouseClick on the symbol body.\nChange the value of TRIPDT to 100e-6 TEXT 376 848 Left 0 ;LM7805 TEXT 496 832 Left 0 ;VCC TEXT 256 832 Left 0 ;Vunreg LINE Normal -375 448 -407 448 LINE Normal -375 480 -375 448 LINE Normal -359 480 -391 480 LINE Normal -375 496 -359 480 LINE Normal -391 480 -375 496 LINE Normal -592 256 -592 224 LINE Normal -608 272 -592 256 LINE Normal -592 288 -608 272 LINE Normal -608 304 -592 288 LINE Normal -608 304 -608 304 LINE Normal -640 448 -640 416 LINE Normal -410 448 -640 448 LINE Normal -640 176 -640 208 LINE Normal -560 176 -640 176 LINE Normal -560 304 -560 176 LINE Normal -640 304 -640 336 LINE Normal -592 320 -608 304 LINE Normal -608 336 -592 320 LINE Normal -592 352 -608 336 LINE Normal -608 368 -592 352 LINE Normal -592 384 -608 368 LINE Normal -592 448 -592 384 LINE Normal -592 448 -592 448 LINE Normal -592 176 -592 224 LINE Normal 512 560 480 560 LINE Normal 496 592 512 560 LINE Normal 480 560 496 592 LINE Normal 512 592 480 592 LINE Normal 512 624 480 624 LINE Normal 496 656 512 624 LINE Normal 480 624 496 656 LINE Normal 512 656 480 656 LINE Normal 496 624 496 592 LINE Normal 496 624 496 624 LINE Normal 496 560 496 544 LINE Normal 496 672 496 656 LINE Normal 464 592 448 592 LINE Normal 464 608 448 608 LINE Normal 456 584 440 600 LINE Normal 440 600 454 614 LINE Normal 416 912 416 886 LINE Normal 400 912 416 912 LINE Normal 416 928 400 912 LINE Normal 432 912 416 928 LINE Normal 416 912 432 912 LINE Normal 528 848 483 848 LINE Normal 352 848 307 848 RECTANGLE Normal -408 488 -696 144 RECTANGLE Normal -382 673 -398 657 RECTANGLE Normal -672 432 -704 192 RECTANGLE Normal -624 304 -656 208 RECTANGLE Normal -624 416 -656 336 RECTANGLE Normal 1040 -96 560 -384 RECTANGLE Normal 1040 -432 96 -736 RECTANGLE Normal 483 886 352 816 CIRCLE Normal -397 729 -525 601 CIRCLE Normal -423 706 -439 690 CIRCLE Normal -480 705 -496 689 CIRCLE Normal -481 644 -497 628