Version 4 SHEET 1 880 680 WIRE 32 176 -192 176 WIRE 368 176 320 176 WIRE 480 176 368 176 WIRE 576 176 480 176 WIRE -192 192 -192 176 WIRE 480 192 480 176 WIRE 576 192 576 176 WIRE 368 256 368 176 WIRE 32 272 16 272 WIRE -192 288 -192 272 WIRE 480 288 480 256 WIRE 576 288 576 272 WIRE 240 352 240 336 WIRE 368 352 368 336 WIRE 368 352 240 352 WIRE 112 368 112 336 WIRE 368 368 368 352 WIRE 368 464 368 448 FLAG -192 288 0 FLAG 112 368 0 FLAG 480 288 0 FLAG 576 288 0 FLAG 368 464 0 FLAG -192 176 IN FLAG 576 176 OUT SYMBOL PowerProducts\\LT1521 176 224 R0 SYMATTR InstName U1 SYMBOL voltage -192 176 R0 SYMATTR InstName V1 SYMATTR Value PWL(0 0 1 10) SYMBOL cap 464 192 R0 SYMATTR InstName C1 SYMATTR Value 1.5µ SYMBOL res 352 240 R0 SYMATTR InstName R1 SYMATTR Value 10K SYMBOL res 560 176 R0 SYMATTR InstName Rload SYMATTR Value 500 SYMBOL res 352 352 R0 SYMATTR InstName R2 SYMATTR Value 10K TEXT 448 384 Left 2 !.tran 1