Brick-by-Brick Power Supply
modularity = total versatility

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Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
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Extra info / Update
* Single-supply output options: 3.3 V or 5 V @ 0.5 A, optionally 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V, 6.5 V, 9 V, 12 V, 15 V
* Symmetrical-supply output: ±15 V @ 6 W approx., optionally ±9 V, ±12 V
* Industry standard footprint DC/DC modules from Recom and Tracopower
* Zero-SMD, zero–microcontroller design
Component list
Resistor
R1 = 4.7 kOhm, carbon film, 5%, 0.25W, 250V
Capacitors
C1-C6 = 2.2µF 50V 20%, ceramic Y5V, 0.2’’ pitch
C7 = 4.7µF 50V 20%, 2mm pitch, diam. 6.3mm max.
C8,C10,C11 = 47µF 50V 20%, 2.5mm pitch, diam. 6.3 mm max.
C9,C12,C13 = 100nF 50V 10%, ceramic X7R, 0.2’’ pitch
Inductors
L1 = 4.7µH, 3.05A, 80mOhm, 10%, radial, 5mm pitch, e.g. Epcos B82144B2472K000
L2 = 600µH, 2A, 2 x 50mOhm, common-mode choke, 17.5x14 mm, Kemet SC-02-06G
Semiconductors
D1-D5 = 1N4007 (1000V, 1A)
LED1 = LED, green, 3mm
MOD1 = R-87E3.3-0.5, Recom (3.3V, 0.5A)
MOD2 = TEL 5-2423 Traco Power (5W, ±15 V)
Miscellaneous
K1 = DC barrel jack, 1.95mm pin, 12V, 3A
K2,K3 = PCB screw terminal block, 2-way, 0.2’’ pitch
K4 = PCB screw terminal block, 3-way, 0.2’’ pitch
JP1 = 2-pin pinheader, vertical, 0.1’’ pitch
F1 = fuseholder, 20x5mm, 500V, 10A
F1 = fuseholder cover, 20x5 mm
F1 = fuse, cartridge, 1A slow blow, 20x5mm
PCB # 150464 v. 1.1 from the Elektor Store
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