Version 4 SHEET 1 880 680 WIRE 624 -64 48 -64 WIRE -32 112 -160 112 WIRE 176 112 -32 112 WIRE 352 112 256 112 WIRE 416 112 352 112 WIRE 624 112 624 -64 WIRE 624 112 496 112 WIRE 672 112 624 112 WIRE 352 144 352 112 WIRE 624 144 624 112 WIRE -160 160 -160 112 WIRE 240 176 240 160 WIRE 432 176 432 160 WIRE 480 176 480 160 WIRE 192 192 192 160 WIRE 48 272 48 -64 WIRE 176 272 48 272 WIRE 352 272 352 208 WIRE 352 272 256 272 WIRE 416 272 352 272 WIRE 624 272 624 208 WIRE 624 272 496 272 WIRE -160 288 -160 240 WIRE 624 320 624 272 WIRE 192 336 192 320 WIRE 240 336 240 320 WIRE 432 336 432 320 WIRE 480 336 480 320 WIRE -160 448 -160 432 WIRE -64 448 -64 432 WIRE 352 448 352 272 WIRE -160 544 -160 528 WIRE -64 544 -64 528 WIRE 352 560 352 512 FLAG 624 320 0 FLAG 192 192 0 FLAG 192 336 0 FLAG 432 176 0 FLAG 432 336 0 FLAG 240 176 s1 FLAG 240 336 s1 FLAG 480 176 s2 FLAG 480 336 s2 FLAG -160 288 0 FLAG -160 544 0 FLAG -64 544 0 FLAG -160 432 s1 FLAG -64 432 s2 FLAG 672 112 out IOPIN 672 112 Out FLAG 352 560 0 FLAG -32 112 in SYMBOL cap 336 144 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL cap 608 144 R0 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL sw 160 112 R270 SYMATTR InstName S1 SYMBOL sw 160 272 R270 SYMATTR InstName S2 SYMBOL sw 400 112 R270 SYMATTR InstName S3 SYMBOL sw 400 272 R270 SYMATTR InstName S4 SYMBOL voltage -160 144 R0 SYMATTR InstName V1 SYMATTR Value 20 SYMBOL voltage -160 432 R0 WINDOW 3 -16 161 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 1 1u .1u .1u 48u 100u) SYMATTR InstName V2 SYMBOL voltage -64 432 R0 WINDOW 3 32 93 Left 0 SYMATTR Value PULSE(0 1 50u .1u .1u 48u 100u) SYMATTR InstName V3 SYMBOL cap 336 448 R0 SYMATTR InstName CS SYMATTR Value {CS} TEXT 232 -120 Left 0 !.model sw sw(Ron=1 Roff=1e12 vt=0.5) TEXT -176 -120 Left 0 !.tran 0 10m 0 .1u uic TEXT -176 -152 Left 0 !.options reltol=1e-5 vntol=1e-8 TEXT -176 -192 Left 0 !.step param CS list 1p 5p 10p RECTANGLE Normal 560 384 112 16