Version 4
SHEET 1 1836 680
WIRE -432 96 -1120 96
WIRE -224 112 -368 112
WIRE 448 112 -144 112
WIRE 592 112 528 112
WIRE 704 112 592 112
WIRE 928 112 784 112
WIRE 1056 112 928 112
WIRE 1152 112 1136 112
WIRE -432 128 -880 128
WIRE 928 144 928 112
WIRE 592 176 592 112
WIRE 1152 192 1152 112
WIRE 1216 192 1152 192
WIRE 928 240 928 208
WIRE 1152 240 1152 192
WIRE 1360 240 1280 240
WIRE 1280 272 1280 240
WIRE 1216 288 1216 192
WIRE 1232 288 1216 288
WIRE -432 320 -528 320
WIRE 592 336 592 240
WIRE 592 336 -368 336
WIRE 928 336 928 320
WIRE 928 336 592 336
WIRE 1152 336 1152 320
WIRE 1152 336 928 336
WIRE 1232 336 1152 336
WIRE -1120 352 -1120 96
WIRE -432 352 -1120 352
WIRE -1120 432 -1120 352
WIRE -880 432 -880 128
WIRE -528 432 -528 320
WIRE -208 432 -208 160
FLAG 256 512 0
FLAG -1120 512 0
FLAG -880 512 0
FLAG -528 512 0
FLAG -160 160 0
FLAG -208 512 0
FLAG 1280 352 0
SYMBOL voltage 256 416 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 1 1k)
SYMATTR Value2 AC 1
SYMBOL cap 576 176 R0
SYMATTR InstName C1
SYMATTR Value 3µ
SYMATTR SpiceLine Rser=5m
SYMBOL res 1136 224 R0
SYMATTR InstName Speaker
SYMATTR Value 4R
SYMBOL ind 688 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=10m
SYMBOL ind 1040 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L5
SYMATTR Value 33µ
SYMBOL res 912 224 R0
SYMATTR InstName Snubber
SYMATTR Value 4R
SYMBOL cap 912 144 R0
SYMATTR InstName C2
SYMATTR Value 2µ
SYMBOL ind 432 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L4
SYMATTR Value 30µ
SYMATTR SpiceLine Rser=10m
SYMBOL voltage -1120 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 0.9 1k)
SYMBOL voltage -880 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value PULSE(-1 1 0 3u 3u 0 6u)
SYMBOL Digital\\diffschmtbuf -432 48 R0
WINDOW 3 8 44 Invisible 2
SYMATTR InstName A1
SYMATTR Value VH=10m VT=0 VHIGH=3.3 TAU=25n ROUT=1m
SYMBOL Digital\\diffschmtbuf -432 272 R0
WINDOW 3 8 44 Invisible 2
SYMATTR InstName A2
SYMATTR Value VH=10m VT=0 VHIGH=3.3 TAU=25n ROUT=1m
SYMBOL voltage -528 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value PULSE(1 -1 0 3u 3u 0 6u)
SYMBOL sw -128 112 M270
SYMATTR InstName S1
SYMATTR Value MySW
SYMBOL voltage -208 416 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value PULSE(-1 1 1.5u 100n)
SYMBOL e 1280 256 R0
SYMATTR InstName E1
SYMATTR Value 1
TEXT 30 544 Left 2 !;ac oct 1001 100 200k
TEXT -1080 552 Left 2 !.tran 0 10m 3u 10n startup uic
TEXT -256 24 Left 2 !.model MySW SW(RON=1m)