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truzzi ATX PSU Breakout Mini V1.0

4 years ago 538
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2 layer board of 3.95x3.94 inches (100.23x100.00 mm). truzzi ATX PSU Breakout Mini V1.0 All SMD parts are 0805 or bigger C1, C3: 0.1uF 0805 SMD capacitors. C2: 1uF 0805 SMD capacitor. F1, F2, F3, F4, F5: 1812 SMD PTC resettable fuses. (Littelfuse ones should work just fine, I used Bourns instead which are a bit larger). J1: 24-pin ATX connector. I bought mine from Sparkfun but RS also sells them. JP1: 3-pin header (for voltmeter output) JP2: 6-pin header (for breadboard output, fused) LED1, LED2, LED3, LED4, LED5, LED6: 0805 SMDs, choose the color you want but make sure to use appropriate resistors. You may not want full brightness and sure you don’t want magic smoke. R1, R2, R11, R12, R15: 3.3K ohm, 0805. R3: 330 ohm, 0805 (value may change – double check LM317 voltages). R16: 10k ohm, 0805. R6: 9/10W power resistor, not needed in my case. R14: 1.2k ohm, 0805. T1, T2, T3, T4, T5, T6: binding posts with 4mm hole. You may want some red ones for the positive lines and a black one for GND. U1: LM-317, through hole. There should be enough space for a heatsink. U2: TPS2513 from Texas Instruments. If you don’t have them, look up the datasheet and solder appropriate resistors on D+ and D- pins of the USB ports. X1, X2: USB female connectors, through hole. 2 layer board of 3.95x3.94 inches (100x100mm). $77.65 for three. Order now. Download. Permalink.

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truzzi ATX PSU Breakout Mini V1.0

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