Linear Technology Design Note 485 Supercap Ride-Through Application

This document introduces a design scheme for a supercapacitor ride-through application that maximizes runtime using an energy scavenging scheme, improving runtime by 40%.

Brand: Linear Technology
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 2
File format: PDF
File size: 103 KB
Published: 05 June, 2012
Updated: 30 September, 2023
MD5 checksum: 9952B94F985FFEDD958F2EC6BC951158
PDF: Linear Technology Design Note 485 Supercap Ride-Through Application PDF

About this manual

The document presents a complete 3.3V/200mA power ride-through application designed to maximize the extraction of energy from a supercapacitor during main power interruptions. The design utilizes an LTC4425 charger, an LTC3606 buck regulator, and an ideal diode switch (LTC4416) alongside a boost regulator.

What's inside

Introduction
Complete Energy Utilization Maximizes Run Time
How it Works
Maximizing Usage of the Energy in the Supercap
Conclusion

Frequently asked questions

What is the output voltage and current for the ride-through application shown?

The application provides a regulated 3.3V output that supports a constant power load of 200mA.

What percentage of energy is extracted when the boost regulator is enabled?

The system extracts 77% of the supercap's available storage when the boost regulator is operational.

Download PDF (103 KB)