1s battery charger

stellarcorp·tvsc·electrical/modules/1s_battery_charger/1s_battery_charger.kicad_pcb

1s battery charger PCB layout, top view — open source board by stellarcorp

About the 1s battery charger PCB

1s battery charger is an open source PCB design by stellarcorp, published on GitHub under the MIT license. It is a 4-layer board measuring 15 × 15.4 mm, with 26 components from 8 distinct parts.

Other key parts include the BQ25798. By type, the board carries 20 capacitors, 3 resistors, 1 IC, 1 transistor and 1 inductor.

It belongs with the power & battery designs in this gallery.

From the project

Core software repository for the Tennessee Valley Stellar Corporation

This repository is the principal codebase for the Tennessee Valley Stellar Corporation. We are a community-scale space agency in east Tennessee dedicated to the open development of technologies enabling the public use of space.

There are three main sections to the repository. The most active development at the moment is taking place in the hal and the electronics directories. The hal directory contains the Hardware Abstraction Layer. The electronics directory holds our PCB design work. The rest of the repository (the third section) consists of older code that is in need of…

Main components on the 1s battery charger

1s battery charger bill of materials (BOM)

26 components, 8 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	BQ25798	RQM0029A-MFG	U101
1	C473359 CSD16570Q5B Texas Instruments	TDSON-8-1	Q101
1	C576403 2.2µH Murata	L_1008_2520Metric	L101
14	C77041 10u Murata	Nondescript_C_0603_1608Metric	C101, C102, C104, C105, C107, C108, C111, C112 +6
4	C1525 100n Samsung Electro-Mechanics	Nondescript_C_0402_1005Metric	C103, C106, C113, C115
2	0.047u	Nondescript_C_0402_1005Metric	C109, C110
2	C270572 9k31 UNI-ROYAL(Uniroyal Elec)	Nondescript_R_0402_1005Metric	R101, R102
1	100	Nondescript_R_0402_1005Metric	R103

1s battery charger design files

The KiCad project lives in the stellarcorp/tvsc repository on GitHub; these links point at the commit this page was built from.

1s battery charger: common questions

How big is the 1s battery charger PCB?

The 1s battery charger measures 15 × 15.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the 1s battery charger?

26 components, from 8 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 1s battery charger design files?

From the stellarcorp/tvsc repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 1s battery charger design in my own project?

Yes, under the terms of its MIT license, which stellarcorp chose for the repository.

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