From: Tomas Mudrunka Date: Wed, 17 Aug 2016 01:55:46 +0000 (+0200) Subject: fixed to match real TL431 X-Git-Url: http://git.harvie.cz/?p=mirrors%2FDesigns.git;a=commitdiff_plain;h=e78baab16306d7aff89e4ca7236bce18900415df fixed to match real TL431 --- diff --git a/electronics/batteries/low-voltage-shutdown3.circuit b/electronics/batteries/low-voltage-shutdown3.circuit index cfbef83..e2d1fab 100644 --- 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 8d80cff..caaecd1 100644 Binary files a/electronics/batteries/low-voltage-shutdown3.png and b/electronics/batteries/low-voltage-shutdown3.png differ