STMicroelectronics AN2644 Application Note

This document provides an introduction to the LLC resonant half-bridge converter, its operation, and its benefits. It is suitable for applications such as TVs and PCs.


STMicroelectronics AN2644 Application Note - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Application Note
Language
English
Pages
64
File format
PDF
File size
1.3 MB
Published
06 August, 2012
Updated
28 September, 2023
MD5 checksum
2A929989EEB4FF5867B1D73616E6C162

About this manual

This application note provides an introduction to the LLC resonant half-bridge converter, a topology gaining popularity for its efficiency and power density in applications like flat panel TVs and PCs. It addresses the lack of information regarding this topology's operation.

What's inside

  • Classification of resonant converters
  • General overview
  • The switching mechanism
  • Fundamental operating modes
  • No-load operation
  • Overload and short circuit operation
  • Converter's startup
  • Analysis of power losses
  • Small-signal behavior
  • References

Frequently asked questions

What applications is the LLC resonant half-bridge converter suitable for?

It is an excellent solution for applications such as flat panel TVs, 85+ ATX PCs, and small form factor PCs.

What is the primary purpose of this application note?

The purpose is to provide insight into the topology and help familiarize the reader with it.

How does the document approach the explanation of the converter?

The approach is essentially descriptive to help engineers understand the way the topology operates.

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