Failed latching PSU circuit

For the Falstad Java circuit simulator, http://falstad.com/circuit-java/

$ 1 5.0E-6 61.195984441989225 40 5.0 43
f 912 528 960 528 0 1.5
w 1008 432 1008 464 0
t 960 288 912 288 0 -1 22.349999947198768 -1.480121625263564E-8 300.0
r 912 416 912 368 0 680000.0
w 960 400 1040 400 0
r 960 320 960 400 0 330000.0
r 864 320 784 320 0 5000000.0
w 912 368 864 368 0
r 864 368 864 464 0 220000.0
w 864 464 960 464 0
w 864 464 784 464 0
c 784 320 784 208 0 2.0E-6 -0.2013754550157465
w 912 208 784 208 0
w 784 464 672 464 0
g 672 464 672 496 0
s 784 320 784 416 0 1 true
w 784 208 672 208 0
172 672 208 608 208 0 6 22.35 30.0 15.0 0.0 0.5 Input
w 1072 688 1248 688 0
w 912 208 1040 208 0
w 1216 208 1264 208 0
w 1280 688 1328 688 0
r 1488 576 1488 768 0 100000.0
c 1472 208 1472 400 0 0.001 6.580404812788743E-4
w 848 640 1024 640 0
w 1040 320 1040 400 0
r 672 208 672 256 0 100.0
r 672 464 672 416 0 100.0
s 544 416 544 320 0 1 true
s 672 256 672 320 0 1 true
w 784 320 672 320 0
t 912 416 960 416 0 1 -22.349999929698768 6.695001191326893E-8 300.0
r 832 416 784 416 0 22000.0
w 832 416 912 416 0
r 1040 320 1040 208 0 22000.0
w 864 368 848 368 0
w 848 368 848 528 0
r 848 528 912 528 0 100.0
w 1264 208 1312 208 0
w 1312 208 1360 208 0
r 1360 208 1360 400 0 1000.0
w 1360 400 1312 400 0
w 960 512 1312 512 0
w 1312 464 1312 400 0
w 1312 464 1312 512 0
g 960 544 960 592 0
w 928 896 928 816 0
s 672 416 672 320 0 1 false
w 960 320 960 288 0
w 912 368 912 304 0
r 912 208 912 272 0 100000.0
w 1040 208 1088 208 0
w 1040 320 1088 320 0
c 1088 208 1088 320 0 1.0000000000000001E-7 3.3012206301918923E-9
w 1088 208 1216 208 0
r 960 432 960 464 0 1000.0
w 864 320 1312 400 0
o 16 64 0 33 20.0 9.765625E-5 0 -1
o 22 64 0 34 7.62939453125E-5 9.765625E-5 1 -1
o 40 128 0 34 0.0048828125 9.765625E-5 2 -1
o 2 64 1 35 7.62939453125E-5 9.765625E-5 3 -1
o 0 64 0 34 40.0 9.765625E-5 4 -1

Breeze Audio TPA3116 performance reports

These measurements were taken for my video review of the amplifier, which can be found here: Breeze Audio TPA3116 OBJECTIVE performance test, teardown & review

Breeze Audio TPA3116 thumbnailThe amplifier is a $30-class cheapie from China, and it presents the best price-performance that I’ve had in the lab thus far.

Performance figures for an amplifier powered by a 19 V laptop power adapter (lifted ground): PDF, 249 kB

Performance figures for an amplifier powered by an industrial low-noise power supply: PDF, 248 kB

Blank amplifier test sheet, if you want to test your own amplifier: XLSX (no macros), 25 kB

LM358 fan control schematic

schematic

Simulator applet: http://www.falstad.com/circuit-java/
Paste everything below into the “Import” window:

$ 1 5.0E-6 9.001713130052181 30 5.0 43
v 1056 592 1056 496 0 0 40.0 12.0 0.0 0.0 0.5
a 720 448 832 448 0 11.0 0.0 1000000.0
172 608 384 528 384 0 6 5.04 12.0 0.0 0.0 0.5 Voltage
g 1056 592 1056 608 0
g 944 496 944 512 0
g 672 592 672 608 0
w 832 448 880 448 0
r 880 448 960 448 0 10.0
r 976 496 1056 496 0 100.0
w 976 496 976 544 0
r 864 544 752 544 0 10000.0
t 960 448 960 496 0 1 -6.13981445702215 0.6741231726814478 1000.0
r 608 384 608 432 0 12000.0
x 317 461 562 464 0 12 NTC 20C=12K 30C=7K3 40C=4K8 45C=3K9
x 317 480 581 483 0 12 Design temperature: 30C-40C Max speed: >42C
w 1056 336 1056 496 0
x 1005 470 1028 473 0 12 FAN
x 979 417 1023 420 0 12 13N06L
x 914 423 929 426 0 12 1K
c 720 384 832 384 0 1.0E-6 0.7309724773130948
w 720 384 720 432 0
w 832 384 832 448 0
x 1084 538 1126 541 0 12 10-15 V
x 618 516 643 519 0 12 NTC
x 747 497 784 500 0 12 LM358
x 675 301 1311 305 0 14 33K resistor provides compensation for varying supply voltage. Omit if using a regulated 12 V supply.
x 680 516 721 520 0 14 Thres.
r 672 432 672 336 0 33000.0
w 720 432 672 432 0
w 672 432 608 432 0
174 672 432 720 496 0 5000.0 0.48020000000000007 Threshold
w 976 544 864 544 0
w 752 544 720 544 0
w 720 544 720 464 0
174 608 432 656 496 0 13000.0 0.1733 NTC
w 672 592 672 496 0
w 672 496 656 496 0
w 656 496 656 464 0
x 201 357 644 361 0 14 Stabilised 5 V reference can be omitted if using regulated 12 V supply.
x 763 357 949 361 0 14 Capacitor prevents oscillation
x 837 570 995 574 0 14 Transistor inverts output.
w 672 336 1056 336 0
x 746 514 853 518 0 14 Powered by 12 V
x 981 436 1035 439 0 12 N-ch. FET
x 966 469 975 472 0 12 G
x 984 507 993 510 0 12 D
x 926 506 934 509 0 12 S
o 8 1 0 34 10.0 0.05 0 -1