fixed to match real TL431

diff --git a/electronics/batteries/low-voltage-shutdown3.circuit b/electronics/batteries/low-voltage-shutdown3.circuit
index cfbef83e005df5071b857737c7005c85a9c42f68..e2d1fab7ddee63dffad13a35daf95ae55b702099 100644 (file)
--- a/electronics/batteries/low-voltage-shutdown3.circuit
+++ b/electronics/batteries/low-voltage-shutdown3.circuit
@@ -1,74 +1,73 @@
 $ 1 5.0E-6 10.20027730826997 50 5.0 50
-a 560 448 480 448 1 15.0 -15.0 1000000.0
-r 480 448 432 448 0 10000.0
-t 432 448 400 448 0 1 0.6010752043499691 0.6017145432879778 100.0
-v 560 528 560 464 0 0 40.0 2.5 0.0 0.0 0.5
-w 400 464 400 528 0
-w 400 528 480 528 0
-w 480 528 560 528 0
-w 560 432 608 432 0
-f 400 352 464 352 1 1.5
-s 336 352 336 448 0 1 true
-s 336 272 336 352 0 1 true
-w 400 352 336 352 0
-x 439 504 512 510 0 24 TL431
-x 256 402 293 408 0 24 ON
-x 255 311 302 317 0 24 OFF
-w 464 272 400 272 0
-w 400 272 336 272 0
-w 336 272 208 272 0
-172 208 272 144 272 0 6 9.0 35.0 -5.0 0.0 0.5 input voltage
-g 208 592 160 592 0
-w 656 592 400 592 0
-w 400 592 336 592 0
-w 336 592 208 592 0
-w 656 592 784 592 0
-w 784 592 864 592 0
-x 156 113 622 119 0 24 Low voltage cutoff (3-36V) using TL431
-x 489 350 611 356 0 24 P-MOSFET
-x 181 635 734 639 0 16 You can/should omit resistor under TL431 if you don't need OFF switch
-x 158 177 557 181 0 16 + Built-in switch buttons and optional indicator LED
-x 673 446 696 449 0 10 500k
-x 674 460 718 463 0 10 multiturn
-x 454 324 461 327 0 10 S
-x 458 383 466 386 0 10 D
-w 464 368 656 368 0
-w 784 368 864 368 0
-w 400 352 400 432 0
-r 400 528 400 592 0 200.0
-r 400 352 400 272 0 200000.0
-w 464 336 464 272 0
-w 336 528 336 448 0
-w 400 528 336 528 0
-d 384 464 384 432 1 0.805904783
-w 384 432 400 432 0
-w 384 464 400 464 0
-r 784 480 784 368 0 1700.0
-x 157 141 660 145 0 16 + Zero off state current (unless auto-reconnect feature is used)
-x 159 195 785 199 0 16 + Short circuit protection (short circuit causes voltage drop that triggers cutoff)
-x 159 213 843 217 0 16 + Reverse voltage protection (unless you use MOSFET with diode or press OFF button!)
-w 704 368 784 368 0
-w 656 368 672 368 0
-w 672 368 704 368 0
-174 688 272 624 272 0 500000.0 0.49010000000000004 reconnect hysteresis
-w 656 288 656 320 0
-w 608 448 608 432 0
-w 656 480 656 592 0
-174 656 480 608 416 0 500000.0 0.39110000000000006 cutoff voltage
-x 644 255 667 258 0 10 500k
-x 704 282 868 286 0 16 reconnect hysteresis
-x 665 478 773 482 0 16 cutoff voltage
-162 784 480 784 592 1 2.1024259 1.0 0.0 0.0
-w 656 416 656 368 0
-w 688 272 688 352 0
-w 656 320 656 352 0
-w 624 272 480 272 0
-x 745 304 818 308 0 16 (optional)
-x 181 657 853 661 0 16 If you want automatic reconnect with hysteresis, just add another pot across MOSFET
-x 180 677 701 681 0 16 and connect cutoff pot to it's wiper instead of + rail. (as illustrated)
-x 181 697 699 701 0 16 Off current will no longer be zero and OFF switch will be overriden.
-x 158 230 670 234 0 16 + Possibility to add automatic reconnect with hysteresis if needed
-x 158 159 836 163 0 16 + Only 5 components for basic setup!!! (without OFF button, LED and auto reconnect)
-o 17 64 0 289 5.0 0.025 0 -1
-o 8 64 0 35 0.3125 0.025 1 -1
-o 7 64 0 35 40.0 9.765625E-5 2 -1
+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

diff --git a/electronics/batteries/low-voltage-shutdown3.png b/electronics/batteries/low-voltage-shutdown3.png
index 8d80cff4e128696afcfe44ce6d582b151e4895ee..caaecd1a3a1bfae3030a118ab7788864c168680b 100644 (file)
Binary files a/electronics/batteries/low-voltage-shutdown3.png and b/electronics/batteries/low-voltage-shutdown3.png differ