Version 4 SHEET 1 952 728 WIRE 416 176 -240 176 WIRE 832 176 416 176 WIRE 608 192 304 192 WIRE 800 192 608 192 WIRE 96 224 -64 224 WIRE 304 224 304 192 WIRE 304 224 96 224 WIRE 304 240 304 224 WIRE 480 240 448 240 WIRE 608 240 608 192 WIRE 416 288 416 176 WIRE 368 304 368 240 WIRE 368 304 352 304 WIRE 384 304 368 304 WIRE 480 320 480 240 WIRE 480 320 448 320 WIRE 496 320 480 320 WIRE 528 320 496 320 WIRE 608 320 608 304 WIRE 736 320 688 320 WIRE 752 320 736 320 WIRE 304 336 304 320 WIRE 384 336 304 336 WIRE -240 352 -240 176 WIRE -64 352 -64 224 WIRE 112 352 48 352 WIRE 176 352 112 352 WIRE 208 352 176 352 WIRE 304 352 304 336 WIRE 304 352 288 352 WIRE 352 352 352 304 WIRE 640 352 592 352 WIRE 688 352 688 320 WIRE 688 352 640 352 WIRE 592 368 592 352 WIRE -160 432 -240 432 WIRE -64 432 -160 432 WIRE 32 432 -64 432 WIRE 48 432 32 432 WIRE 112 432 48 432 WIRE 352 432 112 432 WIRE 416 432 416 352 WIRE 416 432 352 432 WIRE 592 432 416 432 WIRE 640 432 592 432 WIRE 768 432 640 432 WIRE 832 464 832 176 WIRE 832 464 416 464 WIRE 608 480 304 480 WIRE 800 480 800 192 WIRE 800 480 608 480 WIRE 304 528 304 480 WIRE 480 528 448 528 WIRE 608 528 608 480 WIRE 416 576 416 464 WIRE 368 592 368 528 WIRE 368 592 352 592 WIRE 384 592 368 592 WIRE 480 608 480 528 WIRE 480 608 448 608 WIRE 496 608 480 608 WIRE 528 608 496 608 WIRE 608 608 608 592 WIRE 736 608 688 608 WIRE 752 608 736 608 WIRE 304 624 304 608 WIRE 384 624 304 624 WIRE 176 640 176 352 WIRE 208 640 176 640 WIRE 304 640 304 624 WIRE 304 640 288 640 WIRE 352 640 352 592 WIRE 640 640 592 640 WIRE 688 640 688 608 WIRE 688 640 640 640 WIRE 592 656 592 640 WIRE -240 720 -240 432 WIRE 352 720 -240 720 WIRE 416 720 416 640 WIRE 416 720 352 720 WIRE 592 720 416 720 WIRE 640 720 592 720 WIRE 768 720 640 720 FLAG 32 432 0 FLAG 496 320 opout FLAG 176 352 in FLAG 96 224 3.3 FLAG -160 352 0V FLAG 736 320 sig FLAG 496 608 opoutl FLAG 736 608 sigl SYMBOL res 304 336 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 470 SYMBOL res 320 336 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R2 SYMATTR Value 2.4k SYMBOL voltage -64 336 R0 SYMATTR InstName V2 SYMATTR Value 3.3 SYMBOL voltage -160 336 R0 SYMATTR InstName V3 SYMATTR Value 0 SYMBOL voltage -240 336 R0 SYMATTR InstName V4 SYMATTR Value 15 SYMBOL res 512 336 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 1k SYMBOL res 624 336 R0 SYMATTR InstName R4 SYMATTR Value 2.4k SYMBOL res 352 256 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R5 SYMATTR Value 2.4k SYMBOL res 368 448 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R6 SYMATTR Value 470 SYMBOL Opamps/opamp2 416 256 R0 SYMATTR InstName U1 SYMATTR Value lm358 SYMBOL cap 576 368 R0 SYMATTR InstName C1 SYMATTR Value 18p SYMBOL current 48 352 R0 SYMATTR InstName I1 SYMATTR Value SINE(0 5 500 0 0) SYMBOL res 128 448 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R7 SYMATTR Value 0.018 SYMBOL res 592 336 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R8 SYMATTR Value 470 SYMBOL diode 624 304 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMBOL res 304 624 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 120 SYMBOL res 320 624 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R10 SYMATTR Value 2.4k SYMBOL res 512 624 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R11 SYMATTR Value 1k SYMBOL res 624 624 R0 SYMATTR InstName R12 SYMATTR Value 2.4k SYMBOL res 352 544 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R13 SYMATTR Value 2.4k SYMBOL res 368 736 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R14 SYMATTR Value 120 SYMBOL Opamps/opamp2 416 544 R0 SYMATTR InstName U2 SYMATTR Value lm358 SYMBOL cap 576 656 R0 SYMATTR InstName C2 SYMATTR Value 18p SYMBOL res 592 624 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R15 SYMATTR Value 470 SYMBOL diode 624 592 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 TEXT 320 104 Left 2 !.tran 0 2ms TEXT 496 104 Left 2 !.include lm358.lib TEXT 864 312 Left 2 ;+-21A TEXT 872 616 Left 2 ;+-5A