Version 4 SHEET 1 1480 768 WIRE 880 -224 -224 -224 WIRE 1152 32 592 32 WIRE -192 128 -336 128 WIRE -160 128 -192 128 WIRE -16 128 -80 128 WIRE 96 128 -16 128 WIRE 320 128 192 128 WIRE 592 128 592 32 WIRE 592 128 320 128 WIRE 688 128 592 128 WIRE 1088 128 768 128 WIRE 1248 128 1088 128 WIRE -192 160 -192 128 WIRE 176 176 112 176 WIRE 208 176 176 176 WIRE 320 176 320 128 WIRE 320 176 272 176 WIRE 720 192 704 192 WIRE 816 192 784 192 WIRE 176 208 176 176 WIRE 208 208 176 208 WIRE 320 208 320 176 WIRE 320 208 288 208 WIRE 1248 208 1248 128 WIRE -336 240 -336 128 WIRE -224 256 -224 -224 WIRE -192 256 -192 240 WIRE -192 256 -224 256 WIRE -128 256 -192 256 WIRE 112 256 112 176 WIRE 176 256 176 208 WIRE 176 256 112 256 WIRE -192 272 -192 256 WIRE 704 272 704 192 WIRE 720 272 704 272 WIRE 816 272 816 192 WIRE 816 272 800 272 WIRE 944 272 816 272 WIRE 960 272 944 272 WIRE 1088 272 1088 128 WIRE 1088 272 1040 272 WIRE -128 288 -128 256 WIRE 176 288 176 256 WIRE 224 288 176 288 WIRE 320 288 320 208 WIRE 320 288 304 288 WIRE 880 304 880 -224 WIRE 240 336 192 336 WIRE 368 336 288 336 WIRE 944 352 944 272 WIRE 944 352 912 352 WIRE -336 368 -336 320 WIRE -192 384 -192 336 WIRE -128 384 -128 352 WIRE 704 384 704 272 WIRE 704 384 656 384 WIRE 768 384 704 384 WIRE 960 416 912 416 WIRE 976 416 960 416 WIRE 1152 416 1152 32 WIRE 1152 416 1056 416 WIRE -16 464 -16 128 WIRE 80 464 -16 464 WIRE 192 464 192 336 WIRE 192 464 160 464 WIRE 368 480 368 336 WIRE 960 480 960 416 WIRE 192 512 192 464 WIRE 1248 512 1248 288 WIRE 880 528 880 464 WIRE 528 544 400 544 WIRE 656 544 656 384 WIRE 656 544 528 544 WIRE 528 576 528 544 WIRE 400 592 400 544 WIRE 400 592 240 592 WIRE 960 608 960 560 WIRE 192 688 192 608 WIRE 528 688 528 656 FLAG -336 368 0 FLAG 1248 512 0 FLAG 368 480 0 FLAG 528 688 0 FLAG 960 608 0 FLAG 880 528 0 FLAG 192 688 0 FLAG -192 384 0 FLAG -128 384 0 SYMBOL res 784 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value .1 SYMBOL nmos 96 176 R270 SYMATTR InstName M1 SYMATTR Value BSB014N04LX3 SYMBOL res 1232 192 R0 SYMATTR InstName R2 SYMATTR Value 4 SYMBOL res -64 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value .1 SYMBOL voltage -336 224 R0 WINDOW 123 0 0 Left 2 WINDOW 39 24 124 Left 2 SYMATTR SpiceLine Rser=.1 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL g 208 288 R270 SYMATTR InstName G1 SYMATTR Value 1e-6 SYMBOL res 304 192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 900k SYMBOL res 512 560 R0 SYMATTR InstName R6 SYMATTR Value 5k SYMBOL Opamps\\LT1636 880 384 M0 SYMATTR InstName U2 SYMBOL res 816 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 22k SYMBOL res 1056 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 1k SYMBOL res 1072 400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 1k SYMBOL res 944 464 R0 SYMATTR InstName R9 SYMATTR Value 18k SYMBOL nmos 240 512 M0 SYMATTR InstName M2 SYMATTR Value BSC027N04LS SYMBOL res 176 448 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 330 SYMBOL zener -176 336 R180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value BZX84C6V2L SYMATTR Description Diode SYMATTR Type diode SYMBOL res -208 144 R0 SYMATTR InstName R11 SYMATTR Value 68 SYMBOL cap -144 288 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL cap 272 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .1µ SYMBOL cap 784 176 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 0.1µ TEXT -368 504 Left 2 !.tran 0 100m 0 TEXT 1344 248 Left 2 ;LOAD TEXT -16 752 Left 2 ;Photovoltaic Optocoupler is simulated by a controlled current source G1