TRAFFIC LIGHT UPS SOLUTIONS

UPS uninterruptible power supply control system design

This reference design demonstrates how digital-power techniques when applied to UPS applications enable easy modifications through software, the use of smaller magnetics, intelligent battery charging, higher efficiency, compact designs, reduction in audible and electrical noise via a purer sine-wave output, USB communication, and low-cost overall bill-of-materials. [pdf]

Solar light sensing system

The system is based on the combination of two approaches to precisely track the sunlight: first, using multiple LDRs (light-dependent resistors) as photo sensors to track the position of the sun by balancing the resistivity using a proportional integral deprival (PID) controller, and the second approach using the time-based control for cloudy days when sunlight is diffused, getting the time GPS coordinates and time to calculate the accurate position of the sun by determining the azimuth and altitude angle. [pdf]

How to choose UPS uninterruptible power supply in Sri Lanka

When choosing a UPS (Uninterruptible Power Supply), prioritize models that match your device’s wattage needs and desired backup time—look for units with pure sine wave output, automatic voltage regulation, and enough outlets for your setup; for example, if you're protecting a home office or network system, consider a line-interactive UPS with at least 600VA and USB/data line protection 1. [pdf]

Wickles SolarTech