Version 4
SHEET 1 880 680
WIRE -64 -512 -400 -512
WIRE 256 -512 -64 -512
WIRE 624 -512 256 -512
WIRE 768 -512 624 -512
WIRE 784 -512 768 -512
WIRE 624 -496 624 -512
WIRE -64 -480 -64 -512
WIRE -400 -464 -400 -512
WIRE 624 -400 624 -416
WIRE 624 -400 544 -400
WIRE 768 -384 768 -512
WIRE -64 -368 -64 -400
WIRE 48 -368 -64 -368
WIRE 256 -368 256 -512
WIRE -64 -352 -64 -368
WIRE 544 -336 544 -400
WIRE 192 -320 144 -320
WIRE -400 -304 -400 -384
WIRE -304 -304 -400 -304
WIRE -128 -304 -224 -304
WIRE 48 -256 48 -368
WIRE 144 -256 144 -320
WIRE 144 -256 48 -256
WIRE 256 -256 256 -272
WIRE 368 -256 256 -256
WIRE 496 -256 448 -256
WIRE 256 -240 256 -256
WIRE 144 -192 144 -256
WIRE 192 -192 144 -192
WIRE -400 -176 -400 -304
WIRE 48 -144 48 -256
WIRE -400 80 -400 -96
WIRE -64 80 -64 -256
WIRE -64 80 -400 80
WIRE 48 80 48 -64
WIRE 48 80 -64 80
WIRE 256 80 256 -144
WIRE 256 80 48 80
WIRE 544 80 544 -240
WIRE 544 80 256 80
WIRE 624 80 544 80
WIRE 768 80 768 -304
WIRE 768 80 624 80
WIRE 864 80 768 80
WIRE 624 112 624 80
FLAG 624 112 0
SYMBOL pnp 192 -144 M180
SYMATTR InstName Q1
SYMATTR Value 2N3906
SYMBOL npn 192 -368 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL voltage 768 -400 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12V
SYMBOL voltage -400 -192 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 0 0 0 10ms 20ms 10)
SYMBOL res -80 -496 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL npn -128 -352 R0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res -208 -320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 32 -160 R0
SYMATTR InstName R4
SYMATTR Value 22K
SYMBOL res -416 -480 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL nmos 496 -336 R0
SYMATTR InstName M1
SYMATTR Value IPD600N25N3
SYMBOL res 464 -272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 120
SYMBOL res 608 -512 R0
SYMATTR InstName R6
SYMATTR Value 4
TEXT -96 136 Left 2 !.tran 0.1
TEXT 480 -456 Left 2 ;Heated bed
TEXT -392 -224 Left 2 ;Input from RAMPS