Protection
About the Protection PCB
Protection is an open source PCB design by ddowling, published on GitHub. It is a 2-layer board measuring 109 × 31 mm, with 9 components from 6 distinct parts.
Other key parts include the RL1210A390K. By type, the board carries 5 capacitors, 2 connectors, 1 IC and 1 inductor.
It belongs with the power & battery designs in this gallery.
From the project
Hardware and firmware for a bidirectional DC-DC convertor
This is a design for a Bidirectional Buck-Boost DC-DC converter based on the Texas Instruments BQ25758 integrated circuit. The BQ25758 has a wide supply range from 4.2V to 60V and the external MOSFETs and Inductor should support currents up to 10A. This design is closely based on the BQ25758 Evaluation Module. I decided to spin my own board as I wanted to add a microcontroller and four Ideal Diodes with load switches to make a completely standalone board.
Main components on the Protection
Protection bill of materials (BOM)
9 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RL1210A390K | R1210 | U1 |
| 2 | Conn_01x02 | PhoenixContact_MSTBVA_2,5_2-G-5,08_1x02_P5.08mm_Vertical | J1, J2 |
| 1 | ACM1513-551-2PL-TLHF | FILTER-SMD_4P-L15.0-W13.0-BL | L1 |
| 2 | 56uF/80VW | CP_Elec_10x10.5 | C1, C3 |
| 2 | 10uF/100VW | C_1210_3225Metric | C2, C4 |
| 1 | 100nF/100VW | C_1206_3216Metric | C5 |
Protection design files
The KiCad project lives in the ddowling/BidirectionalSupply repository on GitHub; these links point at the commit this page was built from.
Protection: common questions
How big is the Protection PCB?
The Protection measures 109 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Protection?
9 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the Protection design files?
From the ddowling/BidirectionalSupply repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Protection design in my own project?
The repository has no license, so all rights stay with ddowling. Use it as a reference, and ask the author before reusing the design.
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