Industrial 5V Online UPS
A high-efficiency industrial 5V Online UPS designed to provide uninterrupted power for embedded and industrial systems using intelligent battery management, seamless power switching, and advanced protection architecture.
Project Overview
The Industrial 5V Online UPS is a high-performance power management platform developed to deliver continuous and reliable 5V power for industrial controllers, embedded systems, IoT devices, networking equipment, and mission-critical electronics.
The system automatically switches between the primary power source and a rechargeable Lithium-ion battery without interrupting the output, ensuring uninterrupted operation during power failures.
Built around a high-efficiency synchronous buck converter and intelligent power-path architecture, the platform integrates battery charging, automatic source selection, ideal diode switching, comprehensive protection mechanisms, and real-time system monitoring into a compact industrial-grade PCB.
Designed for continuous 24/7 operation, the UPS delivers up to 10A continuous output, 12A peak current, and achieves approximately 92% power conversion efficiency.
Client Requirements
The client required a reliable industrial UPS capable of:
- Delivering uninterrupted regulated 5V output.
- Supporting high current industrial loads.
- Automatic switching between main power and battery.
- Fast battery charging.
- Wide input voltage compatibility.
- High conversion efficiency.
- Industrial-grade protection.
- Battery health monitoring.
- Real-time power status reporting.
- Production-ready hardware.
Our Solution
Metanoia designed and manufactured a complete industrial UPS platform including:
- Custom High-Current PCB Design.
- Online UPS Architecture.
- Intelligent Battery Management System.
- Automatic Power Source Switching.
- High-Efficiency DC-DC Conversion.
- Fast Lithium Battery Charging.
- Power Monitoring Interface.
- Protection Circuits.
- Embedded Power Electronics.
- Production-Ready Hardware.
Main Features
Online UPS Operation
Automatically switches between external power and battery without interrupting the 5V output, ensuring continuous system operation.
High Efficiency Power Conversion
Utilizes a synchronous buck converter achieving up to 92% efficiency, reducing heat generation while maximizing power delivery.
Intelligent Battery Management
Integrated Lithium battery charging and protection system supporting:
- Fast Charging
- Overcharge Protection
- Over-discharge Protection
- Short Circuit Protection
- Current Limiting
Industrial Protection
Multiple hardware protection layers including:
- Reverse Polarity Protection
- Overvoltage Protection
- Overcurrent Protection
- Thermal Protection
- Crowbar Output Protection
- Inrush Current Limiting
Real-Time Status Monitoring
Provides dedicated outputs for:
- Battery Level
- Charging Status
- Main Power Detection
- Backup Mode Status
- Output Activity
along with onboard LED indicators for instant visual diagnostics.
Engineering Challenges
Seamless Power Transition
Designing an online UPS capable of switching power sources within microseconds while maintaining stable output voltage.
High Current PCB Design
Developing a compact PCB capable of safely handling continuous currents up to 10A with proper thermal performance.
Efficient Power Management
Optimizing converter efficiency while minimizing switching losses and heat generation.
Industrial Reliability
Implementing multiple hardware protection mechanisms to ensure long-term operation in demanding industrial environments.
Development Process
1. System Architecture
Designed the complete online UPS topology including battery charging, power-path management, and protection circuits.
2. Hardware Development
Designed a custom high-current PCB integrating synchronous buck conversion, battery management, ideal diode controllers, and monitoring interfaces.
3. Power Electronics Optimization
Optimized switching performance, thermal management, and power efficiency for continuous industrial operation.
4. Prototype Validation
Validated efficiency, load regulation, protection mechanisms, battery charging, and automatic power switching under various operating conditions.
5. Manufacturing
Prepared the hardware for production including PCB manufacturing, assembly, testing, and quality assurance.

