$ 1 5.0E-6 10.20027730826997 50 5.0 50
a 560 352 480 352 1 15.0 -15.0 1000000.0
r 480 352 432 352 0 10000.0
t 432 352 400 352 0 1 0.601184086398944 0.6160027948929502 100.0
v 560 432 560 368 0 0 40.0 2.5 0.0 0.0 0.5
w 400 368 400 432 0
w 400 432 480 432 0
w 480 432 560 432 0
w 560 336 608 336 0
f 400 256 464 256 1 1.5
x 439 408 512 414 0 24 TL431
x 286 420 323 426 0 24 ON
x 627 426 674 432 0 24 OFF
w 464 176 400 176 0
w 400 176 336 176 0
w 336 176 208 176 0
172 208 176 144 176 0 6 11.0 35.0 -5.0 0.0 0.5 input voltage
x 159 30 625 36 0 24 Low voltage cutoff (5-36V) using TL431
x 489 254 611 260 0 24 P-MOSFET
x 158 81 557 85 0 16 + Built-in switch buttons and optional indicator LED
x 708 327 725 330 0 10 50k
x 709 341 753 344 0 10 multiturn
x 454 228 461 231 0 10 S
x 458 287 466 290 0 10 D
w 464 272 656 272 0
w 784 272 864 272 0
w 464 240 464 176 0
w 400 432 336 432 0
d 384 368 384 336 1 0.805904783
w 384 336 400 336 0
w 384 368 400 368 0
x 159 99 785 103 0 16 + Short circuit protection (short circuit causes voltage drop that triggers cutoff)
x 159 117 679 121 0 16 + Reverse voltage protection (unless you use MOSFET with diode!)
w 704 272 784 272 0
w 656 272 672 272 0
174 720 176 656 176 0 500000.0 0.49010000000000004 reconnect hysteresis
w 688 192 688 224 0
x 676 159 699 162 0 10 500k
x 709 159 873 163 0 16 reconnect hysteresis
x 708 359 755 363 0 16 cutoff
w 720 176 720 256 0
w 688 224 688 256 0
w 624 176 480 176 0
x 750 181 823 185 0 16 (optional)
x 164 487 836 491 0 16 If you want automatic reconnect with hysteresis, just add another pot across MOSFET
x 163 507 894 511 0 16 and connect cutoff pot to it's wiper instead of + rail (as illustrated). This overrides OFF switch.
x 158 134 670 138 0 16 + Possibility to add automatic reconnect with hysteresis if needed
x 158 63 836 67 0 16 + Only 6 components for basic setup!!! (without OFF button, LED and auto reconnect)
r 400 256 400 176 0 5000.0
w 400 336 400 304 0
w 400 304 400 256 0
w 672 272 688 272 0
w 688 272 704 272 0
w 656 176 624 176 0
w 400 304 336 304 0
r 608 336 656 336 0 3600.0
174 688 320 656 352 0 50000.0 0.401 cutoff voltage
w 688 320 688 272 0
w 688 352 688 432 0
s 608 336 608 432 0 1 true
w 688 432 608 432 0
w 608 432 560 432 0
r 784 272 784 352 0 3600.0
162 784 352 784 432 1 2.1024259 1.0 0.0 0.0
w 784 432 864 432 0
w 784 432 688 432 0
w 336 432 208 432 0
g 208 432 160 432 0
s 336 336 336 432 0 1 true
w 336 304 336 336 0
o 14 64 0 289 10.0 0.0125 0 -1
o 8 64 0 35 0.15625 0.003125 1 -1
o 7 64 0 35 10.0 9.765625E-5 2 -1