Version 4
SHEET 1 1184 680
WIRE 320 -256 -144 -256
WIRE 432 -256 320 -256
WIRE 768 -256 432 -256
WIRE 1072 -256 768 -256
WIRE -144 -160 -144 -256
WIRE -144 -32 -144 -80
WIRE 208 -32 -144 -32
WIRE 544 -32 208 -32
WIRE 880 -32 544 -32
WIRE 992 -32 880 -32
WIRE 320 96 320 -256
WIRE 544 96 544 -32
WIRE 880 96 880 -32
WIRE 1072 96 1072 -256
WIRE 208 176 208 -32
WIRE 272 176 208 176
WIRE 432 176 432 -256
WIRE 496 176 432 176
WIRE 768 176 768 -256
WIRE 832 176 768 176
WIRE 992 176 992 -32
WIRE 1024 176 992 176
WIRE 208 192 208 176
WIRE 432 192 432 176
WIRE 768 192 768 176
WIRE 992 192 992 176
WIRE 208 288 208 272
WIRE 320 288 320 192
WIRE 320 288 208 288
WIRE 432 288 432 272
WIRE 432 288 320 288
WIRE 544 288 544 192
WIRE 544 288 432 288
WIRE 640 288 544 288
WIRE 768 288 768 272
WIRE 768 288 720 288
WIRE 880 288 880 192
WIRE 880 288 768 288
WIRE 992 288 992 272
WIRE 992 288 880 288
WIRE 1072 288 1072 192
WIRE 1072 288 992 288
WIRE 768 368 768 288
FLAG 768 368 0
SYMBOL voltage -144 -176 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(-12 12 0 0 0 10ms 20ms)
SYMBOL res 736 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL pmos 496 96 R0
SYMATTR InstName M2
SYMATTR Value AO6407
SYMBOL nmos 832 96 R0
SYMATTR InstName M4
SYMATTR Value AO6408
SYMBOL pmos 272 96 R0
SYMATTR InstName M5
SYMATTR Value AO6407
SYMBOL nmos 1024 96 R0
SYMATTR InstName M1
SYMATTR Value AO6408
SYMBOL res 192 176 R0
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 416 176 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 752 176 R0
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL res 976 176 R0
SYMATTR InstName R5
SYMATTR Value 100k
TEXT 40 -8 Left 2 !.tran 50ms