Hw micropow
About the Hw micropow PCB
Hw micropow is an open source PCB design by aw, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 44 × 22 mm, with 12 components from 8 distinct parts.
Other key parts include the 12V and 5V. By type, the board carries 3 connectors, 3 diodes, 3 capacitors, 2 ICs and 1 fuse.
It belongs with the power & battery designs in this gallery.
From the project
μPow: 3D printer buck converter for 12V/5V fans
A dual-output switching DC-DC buck converter to replace the 24V fans on a 3D printer.
This project is also described in detail on Hackaday.io
This project is certified open hardware:
The left side of the PCB accepts 8V to 28V DC input. It then converts the input voltage to 12V and then to 5V.
The output voltages are accessible on the right side of the PCB and can be used to power 12V or 5V fans or other devices.
Main components on the Hw micropow
Hw micropow bill of materials (BOM)
12 components, 8 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 12V | Converter_DCDC_RECOM_R-78E-0.5_THT | U1 |
| 1 | 5V | Converter_DCDC_RECOM_R-78E-0.5_THT | U2 |
| 3 | Conn_01x02 | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1, J2, J3 |
| 1 | Polyfuse 33V 1.1A/2.2A | Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | 40V 1A Diode | D_SOD-123 | D1 |
| 2 | 28V 1A Diode | D_SOD-123 | D2, D3 |
| 1 | 10uF 50V | CP_Elec_5x5.3 | C1 |
| 2 | 22uF 16V | CP_Elec_5x5.3 | C2, C3 |
Hw micropow design files
The KiCad project lives in the aw/hw-micropow repository on GitHub; these links point at the commit this page was built from.
Hw micropow: common questions
How big is the Hw micropow PCB?
The Hw micropow measures 44 × 22 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hw micropow?
12 components, from 8 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hw micropow design files?
From the aw/hw-micropow repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Hw micropow design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which aw chose for the repository.
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