Version 4 SHEET 1 996 680 WIRE 288 -48 96 -48 WIRE 768 -48 288 -48 WIRE 864 -48 768 -48 WIRE 768 16 768 -48 WIRE 288 80 288 -48 WIRE 864 80 864 -48 WIRE 768 96 720 96 WIRE 816 96 768 96 WIRE 224 128 176 128 WIRE -32 176 -128 176 WIRE 32 176 -32 176 WIRE 544 176 432 176 WIRE 640 176 544 176 WIRE 672 176 640 176 WIRE 864 208 864 176 WIRE 288 288 288 256 WIRE 288 288 176 288 WIRE 864 320 864 288 WIRE -32 336 -32 176 WIRE 32 336 -32 336 WIRE 288 336 288 288 WIRE 224 384 176 384 WIRE 640 400 640 176 WIRE 816 400 640 400 FLAG 96 32 0 FLAG 176 224 0 FLAG -128 256 0 FLAG 288 432 0 FLAG 544 256 0 FLAG 720 192 0 FLAG 432 256 0 FLAG 864 416 0 SYMBOL npn 112 128 R0 SYMATTR InstName Q1 SYMBOL res 128 160 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 3.3K SYMBOL pnp 224 176 M180 SYMATTR InstName Q2 SYMBOL voltage 96 -64 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage -128 160 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value PULSE(0 3.3 0.01 1n 1n 0.1 0.2 0) SYMBOL ind 272 160 R0 SYMATTR InstName L1 SYMATTR Value 100µ SYMATTR SpiceLine Rser=4 SYMBOL npn 224 336 R0 SYMATTR InstName Q3 SYMBOL voltage 432 160 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value PULSE(0 3.3 0.01 1n 1n 0.1 0.2 0) SYMBOL res 528 160 R0 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL nmos 672 96 R0 SYMATTR InstName M1 SYMATTR Value IRF7343N SYMBOL nmos 816 320 R0 SYMATTR InstName M2 SYMATTR Value IRF7343N SYMBOL ind 848 192 R0 SYMATTR InstName L2 SYMATTR Value 100µ SYMATTR SpiceLine Rser=4 SYMBOL pmos 816 176 M180 SYMATTR InstName M3 SYMATTR Value IRF7343P SYMBOL res 752 0 R0 SYMATTR InstName R5 SYMATTR Value 10K SYMBOL npn 112 288 R0 SYMATTR InstName Q4 SYMBOL res 128 320 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R3 SYMATTR Value 2.2K TEXT -160 456 Left 0 !.tran 0 1 0 0.1