Version 4
SHEET 1 880 680
WIRE 480 -16 176 -16
WIRE 512 -16 480 -16
WIRE -192 0 -256 0
WIRE 16 0 -192 0
WIRE 176 0 176 -16
WIRE 176 0 96 0
WIRE 0 16 -48 16
WIRE 176 16 176 0
WIRE 224 16 208 16
WIRE 336 16 304 16
WIRE 368 16 336 16
WIRE 480 16 480 -16
WIRE 480 16 448 16
WIRE -192 32 -192 0
WIRE 512 32 512 -16
WIRE -112 64 -160 64
WIRE 336 64 336 16
WIRE 336 64 320 64
WIRE 416 64 336 64
WIRE 0 112 0 16
WIRE 32 112 0 112
WIRE 176 112 176 96
WIRE 176 112 112 112
WIRE 208 112 208 16
WIRE 208 112 176 112
WIRE 256 112 208 112
WIRE -256 128 -256 0
WIRE -192 128 -192 96
WIRE -112 160 -112 64
WIRE 112 160 -112 160
WIRE 320 160 192 160
WIRE 416 160 320 160
WIRE 448 160 416 160
WIRE 480 160 480 112
WIRE 480 160 448 160
WIRE -48 176 -48 112
WIRE 416 176 416 160
WIRE -112 224 -144 224
WIRE -144 240 -144 224
WIRE -256 256 -256 192
WIRE -192 256 -192 208
WIRE -192 256 -256 256
WIRE -112 256 -112 224
WIRE -112 256 -192 256
WIRE -48 256 -48 240
WIRE -48 256 -112 256
WIRE 416 256 416 240
WIRE 416 256 -48 256
WIRE 480 256 480 240
WIRE 480 256 416 256
WIRE 512 256 512 112
WIRE 512 256 480 256
FLAG -144 240 0
FLAG 448 160 Out
SYMBOL pnp2 256 160 M180
WINDOW 0 -3 89 Left 0
WINDOW 3 18 49 Left 0
SYMATTR InstName Q2
SYMATTR Value 2N3906
SYMBOL npn2 -112 16 R0
WINDOW 0 61 20 Left 0
WINDOW 3 19 48 Left 0
SYMATTR InstName Q1
SYMATTR Value BC548C
SYMBOL pnp2 416 112 M180
WINDOW 0 -25 62 Left 0
WINDOW 3 -22 -4 Left 0
SYMATTR InstName Q3
SYMATTR Value BD440
SYMBOL res 464 32 M270
WINDOW 0 15 107 VTop 0
WINDOW 3 43 6 VBottom 0
SYMATTR InstName Rb2
SYMATTR Value 230
SYMBOL diode 432 240 R180
WINDOW 0 27 63 Left 0
WINDOW 3 32 40 Left 0
SYMATTR InstName D1
SYMATTR Value 1N4002
SYMBOL res 320 0 R90
WINDOW 0 16 108 VBottom 0
WINDOW 3 -11 13 VTop 0
SYMATTR InstName Rb1
SYMATTR Value 7K
SYMBOL res 160 0 R0
WINDOW 0 -32 32 Left 0
WINDOW 3 -37 63 Left 0
SYMATTR InstName R3
SYMATTR Value 3k3
SYMBOL res 128 96 R90
WINDOW 0 17 104 VBottom 0
WINDOW 3 -11 11 VTop 0
SYMATTR InstName R4
SYMATTR Value 3k3
SYMBOL res 112 -16 R90
WINDOW 0 16 112 VBottom 0
WINDOW 3 -11 -4 VTop 0
SYMATTR InstName R5
SYMATTR Value 3k3
SYMBOL Robertugo\\Pote -176 0 M0
WINDOW 0 -36 15 Left 0
WINDOW 3 -73 41 Left 0
WINDOW 123 -27 115 Center 0
SYMATTR InstName P1
SYMATTR Value Rt=47
SYMATTR Value2 Set=.3
SYMBOL res -208 112 R0
WINDOW 0 26 49 Left 0
WINDOW 3 26 83 Left 0
SYMATTR InstName R6
SYMATTR Value 330
SYMBOL res 208 144 R90
WINDOW 0 17 104 VBottom 0
WINDOW 3 -11 12 VTop 0
SYMATTR InstName R7
SYMATTR Value 68k
SYMBOL res 464 144 R0
WINDOW 0 -24 32 Left 0
WINDOW 3 -22 63 Left 0
SYMATTR InstName RL
SYMATTR Value 18
SYMBOL Misc\\battery 512 16 R0
WINDOW 0 5 20 Left 0
WINDOW 3 3 91 Left 0
SYMATTR InstName V+
SYMATTR Value 12
SYMBOL polcap -272 128 R0
WINDOW 3 19 84 Left 0
SYMATTR Value 100µ
SYMATTR InstName Cf
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=16 Irms=265m Rser=0.35 MTBF=2000 Lser=0 mfg="Nichicon" pn="UPL1C101MPH" type="Al electrolytic" ppPkg=1
SYMBOL diode -64 176 R0
WINDOW 0 38 24 Left 0
WINDOW 3 37 44 Left 0
SYMATTR InstName Dsens
SYMATTR Value 1N914
SYMATTR SpiceLine temp={T_Sens}
TEXT -192 -16 Left 0 !.tran 100m
TEXT 72 240 Left 0 !.Step param T_Sens -10 100 10