Version 4 SHEET 1 1480 1352 WIRE 560 -16 560 -48 WIRE -16 64 -16 0 WIRE 96 64 96 0 WIRE 336 80 304 80 WIRE 560 80 560 64 WIRE 560 80 400 80 WIRE 560 96 560 80 WIRE -16 208 -16 144 WIRE 96 208 96 144 WIRE 304 240 304 80 WIRE 384 240 304 240 WIRE 560 240 560 176 WIRE 560 240 464 240 WIRE 416 384 416 352 WIRE -256 400 -320 400 WIRE -80 400 -176 400 WIRE 32 400 -80 400 WIRE 192 400 112 400 WIRE 304 400 304 240 WIRE 304 400 272 400 WIRE 384 400 304 400 WIRE 560 416 560 240 WIRE 560 416 448 416 WIRE 736 416 560 416 WIRE 800 416 736 416 WIRE 384 432 352 432 WIRE 416 448 416 432 WIRE 352 464 352 432 WIRE 416 480 416 448 WIRE -80 496 -80 400 WIRE 560 496 560 416 WIRE 736 576 736 416 WIRE -320 624 -320 400 WIRE 304 640 304 400 WIRE 336 640 304 640 WIRE 560 640 560 576 WIRE 560 640 400 640 WIRE 560 656 560 640 WIRE -320 768 -320 704 WIRE 560 768 560 736 WIRE -80 864 -80 576 WIRE 288 864 -80 864 WIRE 736 864 736 656 WIRE 736 864 368 864 WIRE 736 896 736 864 WIRE -80 912 -80 864 WIRE 736 1024 736 960 WIRE -80 1040 -80 976 FLAG -16 208 0 FLAG -16 0 VDD FLAG -80 1040 0 FLAG 736 1024 0 FLAG -320 768 0 FLAG 800 416 OUT FLAG 96 208 0 FLAG 96 0 VSS FLAG 416 352 VDD FLAG 416 480 VSS FLAG 352 464 0 FLAG 560 768 VSS FLAG 560 -48 VDD FLAG -320 400 IN DATAFLAG 656 416 "$" DATAFLAG -80 400 "$" SYMBOL voltage -16 48 R0 SYMATTR InstName V1 SYMATTR Value 5V SYMBOL res 720 560 R0 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL cap -96 912 R0 WINDOW 3 35 56 Left 2 SYMATTR Value 10µF SYMATTR InstName C1 SYMBOL cap 720 896 R0 SYMATTR InstName C2 SYMATTR Value 10µF SYMBOL current -320 704 R180 WINDOW 0 24 80 Left 2 WINDOW 3 24 0 Left 2 WINDOW 123 24 -22 Left 2 SYMATTR InstName Iin SYMATTR Value 0 SYMATTR Value2 AC 1A 0deg SYMBOL voltage -272 400 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 SYMATTR InstName V_Ref SYMATTR Value 0V SYMBOL voltage 16 400 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 SYMATTR InstName V_Regen SYMATTR Value 0V SYMBOL voltage -80 592 R180 WINDOW 0 -122 18 Left 2 WINDOW 3 -71 81 Left 2 SYMATTR InstName V_Fdbk SYMATTR Value 0V SYMBOL ind 272 880 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10mH SYMBOL res 176 416 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL res 368 256 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value {R2_value} SYMBOL voltage 96 48 R0 SYMATTR InstName V2 SYMATTR Value -5V SYMBOL Opamps/AD8065 416 352 R0 SYMATTR InstName U1 SYMBOL diode 336 96 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL diode 400 624 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL res 544 -32 R0 WINDOW 3 34 79 Left 2 SYMATTR Value 10k SYMATTR InstName R5a SYMBOL res 544 80 R0 SYMATTR InstName R4a SYMATTR Value {R4_value} SYMBOL res 544 480 R0 SYMATTR InstName R4b SYMATTR Value {R4_value} SYMBOL res 544 640 R0 SYMATTR InstName R5b SYMATTR Value 10k TEXT 504 1160 Left 2 !.AC DEC 100000 1Hz 10kHz TEXT 504 1256 Left 2 ;.TRAN 1ms 200ms 0ms 1ms TEXT -72 1168 Left 2 ;.STEP PARAM R2_value 1.1k 1.5k 0.1k TEXT 16 1208 Left 2 !.PARAM R2_value=1.5k TEXT 24 1296 Left 2 !.PARAM R4_value=1k TEXT 640 1112 Left 2 !.OP TEXT -64 1256 Left 2 ;.STEP PARAM R4_value 100 1k 100 TEXT 504 1208 Left 2 ;.AC LIN 100000 1Hz 1000Hz TEXT 616 1304 Left 2 !.IC V(IN)=0