Version 4
SHEET 1 1336 680
WIRE -64 -336 -192 -336
WIRE 80 -336 -64 -336
WIRE 208 -336 80 -336
WIRE 688 -336 208 -336
WIRE 80 -304 80 -336
WIRE 208 -288 208 -336
WIRE 688 -288 688 -336
WIRE 464 -224 320 -224
WIRE 640 -224 464 -224
WIRE 80 -208 80 -240
WIRE 464 -176 464 -224
WIRE 208 -160 208 -208
WIRE 688 -128 688 -192
WIRE 688 -128 528 -128
WIRE 80 -112 80 -144
WIRE 144 -112 80 -112
WIRE -192 -96 -192 -336
WIRE 688 -80 688 -128
WIRE 208 -32 208 -64
WIRE 320 -32 320 -224
WIRE 320 -32 208 -32
WIRE 464 32 464 -80
WIRE 688 32 688 0
WIRE 688 32 464 32
WIRE 784 32 688 32
WIRE 832 32 784 32
WIRE -64 48 -64 -336
WIRE 464 64 464 32
WIRE 208 144 208 -32
WIRE 464 192 464 144
WIRE 464 192 272 192
WIRE 80 224 80 -112
WIRE 688 288 688 32
WIRE 784 288 784 32
WIRE 208 304 208 240
WIRE 464 320 464 192
WIRE -192 448 -192 -16
WIRE -64 448 -64 112
WIRE -64 448 -192 448
WIRE 80 448 80 304
WIRE 80 448 -64 448
WIRE 208 448 208 368
WIRE 208 448 80 448
WIRE 464 448 464 400
WIRE 464 448 208 448
WIRE 688 448 688 352
WIRE 688 448 464 448
WIRE 784 448 784 352
WIRE 784 448 688 448
WIRE -192 480 -192 448
FLAG 832 32 VOUT
IOPIN 832 32 Out
FLAG -192 480 0
SYMBOL npn 272 144 M0
WINDOW 3 39 62 Left 2
SYMATTR Value 2N3904
SYMATTR InstName Q1
SYMBOL pnp 144 -64 M180
SYMATTR InstName Q3
SYMATTR Value 2N3906
SYMBOL res 64 208 R0
SYMATTR InstName R1
SYMATTR Value 20K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 448 304 R0
SYMATTR InstName R3
SYMATTR Value 13k
SYMBOL voltage -192 -112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 23.4
SYMBOL diode 64 -304 R0
SYMATTR InstName D1
SYMBOL diode 64 -208 R0
SYMATTR InstName D2
SYMBOL res 192 -304 R0
SYMATTR InstName R2
SYMATTR Value 332
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL zener 224 368 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D3
SYMATTR Value TFZ6_2B
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 672 -96 R0
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL polcap 704 352 R180
WINDOW 0 24 57 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 10µ
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=33 Irms=0 Rser=0.25 Lser=0 mfg="KEMET" pn="T495X106M035AS" type="Tantalum"
SYMBOL cap 768 288 R0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMATTR SpiceLine V=25 Irms=728m Rser=0.14361 Lser=0 mfg="KEMET" pn="C0603C104K3RAC" type="X7R"
SYMBOL res 448 48 R0
SYMATTR InstName R5
SYMATTR Value 18k
SYMBOL cap -80 48 R0
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMATTR SpiceLine V=50 Irms=835m Rser=0.0936732 Lser=0
SYMBOL npn 528 -176 M0
WINDOW 3 39 62 Left 2
SYMATTR Value 2N3904
SYMATTR InstName Q2
SYMBOL njf 640 -288 R0
SYMATTR InstName J1
TEXT -24 496 Left 2 !.step param XR 2e3 6e3 2e2
TEXT -136 520 Left 2 !.tran 10