Power supply
About the Power supply PCB
Power supply is an open source PCB design by PhysicsUofRAUI, published on GitHub under the MIT license. It is a 2-layer board measuring 127.5 × 45 mm, with 19 components from 14 distinct parts.
Other key parts include the MB10S-13 and LM317_TO-220. By type, the board carries 9 connectors, 4 resistors, 2 ICs, 1 fuse, 1 transformer and 1 diode.
It belongs with the power & battery designs in this gallery.
From the project
A place to hold all projects I have made while reading the book Learning The Art of Electronics
Next part is going to ignore the Iref error term that comes out of the reference terminal for simplicity.
The minimum Vout would then be: Vout = 1.25V + 1.25V(2.2k/2k) = 2.6V
The maximum Vout would then be: Vout = 1.25V + 1.25V(12.2k/2k) = 8.9V
Main components on the Power supply
Power supply bill of materials (BOM)
19 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MB10S-13 | TO-269AA_3P8X4P75_DIO-L | U1 |
| 1 | LM317_TO-220 | TO-220-3_Vertical | U2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_4Ucon_1x02_P3.50mm_Vertical | J1 |
| 1 | Screw_Terminal_01x02 | Altech_AK100_1x02_P5.00mm | J2 |
| 6 | Conn_01x01_Pin | PinHeader_1x01_P2.54mm_Vertical | J3, J4, J5, J6, J7, J8 |
| 1 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | Fuse | Fuseholder_Clip-5x20mm_Bel_FC-203-22_Lateral_P17.80x5.00mm_D1.17mm_Horizontal | F1 |
| 1 | Transformer_1P_1S | BV301S10010 Transformer | T1 |
| 1 | LED | LED_D5.0mm | D1 |
| 1 | 1000uF | CP_Radial_D10.0mm_P5.00mm | C1 |
| 1 | 3.6k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 2.2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | CT-6EP103 | POT_CT-6EP103_NDC | R5 |
Power supply design files
The KiCad project lives in the PhysicsUofRAUI/laoe_projects repository on GitHub; these links point at the commit this page was built from.
Power supply: common questions
How big is the Power supply PCB?
The Power supply measures 127.5 × 45 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Power supply?
19 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Power supply design files?
From the PhysicsUofRAUI/laoe_projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Power supply design in my own project?
Yes, under the terms of its MIT license, which PhysicsUofRAUI chose for the repository.
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