Added Simple PSU

PSU/README.md

+# Simple PSU
+
+A simple ±12V linear power supply, which supplys max 1.5A on each rail. This PSU should deliver enough current for 2 rows of 84HP.
+
+## ⚠ Safety Warning
+
+**DANGER! To build this power supply you need to work with 230VAC from mains. This can kill or hurt you badly! If you wire the transformer wrongly you create even more deadly high voltages. The capacitors in the circuit can keep their charge for minutes, even after you plugged everything out. They won't kill you, but the charge can burn/vaporize your tools if you create a short circuit. If you are not sure what you do, ask for help. Don't make stupid decisions!**
+
+## Circuit
+
+
+
+![simple_psu_schematic.png](simple_psu_schematic.png)
+
+
+
+The Circuit is based on a Toroid transformer which converts 230VAC to 15VDC (this value is the effective value, The peak-to-peak voltage is roughly 42Vpp). The four diodes D1, D2, D3 and D4 form a bridge rectifier – a circuit used to convert AC voltage to DC voltage. With this we can convert positive and negative halfwaves of the two sine voltages of the transformer's secondary windings to DC (roughly 20VDC).
+
+The Capacitors C1 C2, C9, C10, C11 and C12 are used to smoothen the DC coming from the bridge rectifier. The LM317 and LM337 are Linear Voltage regulators, which allow us to set a precise voltage level with a voltage divider (replace R3+R4 and R6+R7 with 10K Trimmers). The Diodes D5, D6, D6 and D10 are there to protect these ICs. Make sure to use heat sinks for the Voltage regulators, because depending on the current draw of your modules they may become very hot or even destroy themselves otherwise.
+
+Adjust R5 and R10 to fit the used light diodes and desired brightness.
+
+## Pics
+
+![simple_psu_pic.jpg](simple_psu_pic.jpg) 
+

PSU/Simple_PSU_LT_Spice.asc

+Version 4
+SHEET 1 1792 816
+WIRE 800 -400 528 -400
+WIRE 1040 -400 864 -400
+WIRE 528 -208 528 -400
+WIRE 528 -208 448 -208
+WIRE 688 -208 528 -208
+WIRE 1040 -208 1040 -400
+WIRE 1040 -208 944 -208
+WIRE 1168 -208 1040 -208
+WIRE 1296 -208 1168 -208
+WIRE 1440 -208 1296 -208
+WIRE 1040 -176 1040 -208
+WIRE 1168 -160 1168 -208
+WIRE 448 -48 304 -48
+WIRE 528 -48 528 -208
+WIRE 528 -48 448 -48
+WIRE 624 -48 528 -48
+WIRE 688 -48 624 -48
+WIRE 816 -48 816 -112
+WIRE 816 -48 752 -48
+WIRE 1040 -48 1040 -96
+WIRE 1040 -48 816 -48
+WIRE 1168 -48 1168 -96
+WIRE 1168 -48 1040 -48
+WIRE 1296 -48 1296 -208
+WIRE 304 -16 304 -48
+WIRE 448 -16 448 -48
+WIRE 528 32 528 -48
+WIRE 624 32 624 -48
+WIRE 688 32 688 -48
+WIRE 752 32 752 -48
+WIRE 816 32 752 32
+WIRE 1040 32 1040 -48
+WIRE 1440 32 1440 -208
+WIRE 304 64 304 48
+WIRE 304 64 16 64
+WIRE 16 80 16 64
+WIRE 16 192 16 160
+WIRE 128 192 16 192
+WIRE 448 208 448 48
+WIRE 448 208 224 208
+WIRE 528 208 528 96
+WIRE 528 208 496 208
+WIRE 624 208 624 96
+WIRE 624 208 528 208
+WIRE 688 208 688 96
+WIRE 688 208 624 208
+WIRE 816 208 816 192
+WIRE 816 208 688 208
+WIRE 1040 208 1040 96
+WIRE 1040 208 816 208
+WIRE 1296 208 1296 96
+WIRE 1296 208 1040 208
+WIRE 1440 208 1440 96
+WIRE 1440 208 1296 208
+WIRE 16 224 16 192
+WIRE 128 224 128 192
+WIRE 496 240 496 208
+WIRE 528 288 528 208
+WIRE 624 288 624 208
+WIRE 688 288 688 208
+WIRE 304 304 304 64
+WIRE 448 304 448 208
+WIRE 1040 304 1040 208
+WIRE 1296 304 1296 208
+WIRE 16 336 16 304
+WIRE 224 336 224 208
+WIRE 224 336 16 336
+WIRE 816 368 752 368
+WIRE 304 416 304 368
+WIRE 448 416 448 368
+WIRE 448 416 304 416
+WIRE 528 416 528 352
+WIRE 528 416 448 416
+WIRE 624 416 624 352
+WIRE 624 416 528 416
+WIRE 688 416 688 352
+WIRE 688 416 624 416
+WIRE 1440 416 1440 208
+WIRE 752 448 752 368
+WIRE 816 448 752 448
+WIRE 1040 448 1040 368
+WIRE 1040 448 816 448
+WIRE 1168 448 1040 448
+WIRE 1296 448 1296 368
+WIRE 1040 512 1040 448
+WIRE 816 528 816 448
+WIRE 1168 528 1168 448
+WIRE 528 608 528 416
+WIRE 528 608 448 608
+WIRE 736 608 528 608
+WIRE 1040 608 1040 592
+WIRE 1040 608 896 608
+WIRE 1168 608 1168 592
+WIRE 1168 608 1040 608
+WIRE 1296 608 1296 528
+WIRE 1296 608 1168 608
+WIRE 1440 608 1440 480
+WIRE 1440 608 1296 608
+WIRE 448 624 448 608
+WIRE 528 768 528 608
+WIRE 784 768 528 768
+WIRE 1040 768 1040 608
+WIRE 1040 768 848 768
+FLAG 128 224 0
+FLAG 496 240 0
+FLAG 448 -144 0
+FLAG 448 688 0
+SYMBOL voltage 16 64 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V1
+SYMATTR Value SINE(0 15 50)
+SYMBOL voltage 16 208 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value SINE(0 15 50)
+SYMBOL diode 320 48 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D1
+SYMATTR Value 1N4001
+SYMBOL diode 464 48 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D2
+SYMATTR Value 1N4001
+SYMBOL diode 320 368 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D3
+SYMATTR Value 1N4001
+SYMBOL diode 464 368 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D4
+SYMATTR Value 1N4001
+SYMBOL polcap 512 32 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 1000
+SYMATTR InstName C1
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0 mfg="Nichicon" pn="UPG1V102MRH" type="Al electrolytic"
+SYMBOL polcap 512 288 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 1000
+SYMATTR InstName C2
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0 mfg="Nichicon" pn="UPG1V102MRH" type="Al electrolytic"
+SYMBOL EXTRA\\VolReg\\LM317-TI 816 -208 R0
+SYMATTR InstName U1
+SYMBOL cap 464 -144 R180
+WINDOW 0 24 56 Left 2
+WINDOW 3 24 8 Left 2
+SYMATTR InstName C3
+SYMATTR Value 100n
+SYMBOL diode 864 -416 R90
+WINDOW 0 0 32 VBottom 2
+WINDOW 3 32 32 VTop 2
+SYMATTR InstName D5
+SYMATTR Value 1N4001
+SYMBOL res 1024 -192 R0
+SYMATTR InstName R1
+SYMATTR Value 1k
+SYMBOL res 800 96 R0
+SYMATTR InstName R2
+SYMATTR Value 1.5k
+SYMBOL res 800 16 R0
+SYMATTR InstName R3
+SYMATTR Value {T-Tval}
+SYMBOL res 800 -64 R0
+SYMATTR InstName R4
+SYMATTR Value {Tval}
+SYMBOL polcap 1024 32 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 10
+SYMATTR InstName C4
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL diode 1184 -96 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D6
+SYMATTR Value 1N4001
+SYMBOL res 1280 -64 R0
+SYMATTR InstName R5
+SYMATTR Value 1k
+SYMBOL LED 1280 32 R0
+SYMATTR InstName D8
+SYMATTR Value LedRed
+SYMBOL polcap 1424 32 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 100
+SYMATTR InstName C5
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL Vreg\\lm337 816 576 R0
+SYMATTR InstName U2
+SYMBOL cap 432 624 R0
+SYMATTR InstName C6
+SYMATTR Value 100n
+SYMBOL res 800 192 R0
+SYMATTR InstName R6
+SYMATTR Value 1.5k
+SYMBOL res 800 272 R0
+SYMATTR InstName R7
+SYMATTR Value {T2-Tval2}
+SYMBOL res 800 352 R0
+SYMATTR InstName R8
+SYMATTR Value {Tval2}
+SYMBOL res 1024 496 R0
+SYMATTR InstName R9
+SYMATTR Value 1k
+SYMBOL polcap 1024 304 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 10
+SYMATTR InstName C7
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL diode 1184 592 R180
+WINDOW 0 24 64 Left 2
+WINDOW 3 24 0 Left 2
+SYMATTR InstName D7
+SYMATTR Value 1N4001
+SYMBOL LED 1280 304 R0
+SYMATTR InstName D9
+SYMATTR Value LedRed
+SYMBOL res 1280 432 R0
+SYMATTR InstName R10
+SYMATTR Value 1k
+SYMBOL polcap 1424 416 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 100
+SYMATTR InstName C8
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL diode 784 784 R270
+WINDOW 0 32 32 VTop 2
+WINDOW 3 0 32 VBottom 2
+SYMATTR InstName D10
+SYMATTR Value 1N4001
+SYMBOL polcap 608 32 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 470
+SYMATTR InstName C9
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL polcap 608 288 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 470
+SYMATTR InstName C10
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL polcap 672 32 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 470
+SYMATTR InstName C11
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+SYMBOL polcap 672 288 R0
+WINDOW 3 24 56 Left 2
+SYMATTR Value 470
+SYMATTR InstName C12
+SYMATTR Description Capacitor
+SYMATTR Type cap
+SYMATTR SpiceLine V=35 Irms=1.25 Rser=0.08 Lser=0
+TEXT -16 712 Left 2 !.tran 0 450ms 400ms
+TEXT 1536 -32 Left 2 !.PARAM T=10k
+TEXT 1536 0 Left 2 !.PARAM Tval=3.5k
+TEXT 1536 296 Left 2 !.PARAM T2=10k
+TEXT 1536 328 Left 2 !.PARAM Tval2=5k