https://github.com/yousef4008/li-ion-charger-v1-pcb
A custom-designed PCB for charging 3.7V Li-ion batteries, created using Altium Designer. The circuit supports micro USB power input and features CC/CV charging protocols with integrated protection against overcharge, over-discharge, and short circuits.
https://github.com/yousef4008/li-ion-charger-v1-pcb
altium-designer pcb pcb-design
Last synced: 2 months ago
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A custom-designed PCB for charging 3.7V Li-ion batteries, created using Altium Designer. The circuit supports micro USB power input and features CC/CV charging protocols with integrated protection against overcharge, over-discharge, and short circuits.
- Host: GitHub
- URL: https://github.com/yousef4008/li-ion-charger-v1-pcb
- Owner: Yousef4008
- Created: 2024-08-19T00:41:45.000Z (8 months ago)
- Default Branch: main
- Last Pushed: 2024-08-19T01:00:02.000Z (8 months ago)
- Last Synced: 2025-01-05T13:13:43.345Z (4 months ago)
- Topics: altium-designer, pcb, pcb-design
- Homepage:
- Size: 1.09 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# Li-ion Charging Circuit PCB
## Overview
This project involves the design and implementation of a Li-ion charging circuit on a custom PCB using Altium Designer. The circuit is capable of safely charging a 3.7V Li-ion battery and includes protection mechanisms to ensure the longevity and safety of the battery.
## Features
- **Input Power**: The circuit is powered via a micro USB port, making it easy to connect to a standard USB power source.
- **Charging Circuit**: The charging circuit follows standard Li-ion battery charging protocols, including constant current (CC) and constant voltage (CV) stages.
- **Protection Circuitry**: Includes overcharge, over-discharge, and short circuit protection to safeguard the battery and connected devices.
- **Battery Management**: The circuit is designed to manage the battery’s charging cycle, ensuring optimal performance and safety.
## Design Tools
- **Altium Designer**: The PCB layout and circuit design were completed using Altium Designer, a professional-grade PCB design tool.
## Components Used
- **Micro USB Port**: For power input.
- **Li-ion Battery**: 3.7V Li-ion battery as the primary energy storage.
- **Charging IC**: Handles the charging process and ensures proper voltage and current regulation.
- **Protection IC**: Provides the necessary protection features to prevent damage to the battery.
- **Miscellaneous Components**: Resistors, capacitors, LEDs for status indication, and connectors.
## Schematic and PCB Layout
The schematic includes all the components necessary for the charging circuit, and the PCB layout is optimized for space and efficiency.
## How to Use
1. **Power the Circuit**: Connect the micro USB port to a standard 5V USB power source.
2. **Connect the Battery**: Attach a 3.7V Li-ion battery to the designated connectors on the PCB.
3. **Monitor Charging**: Use the status LEDs to monitor the charging process. The circuit will automatically handle the charging and switch to protection mode when necessary.
## Contact
For any inquiries or collaboration requests, please contact me at [email protected].