Synchronous Rectification Module
The new Synchronous Rectification Module by ITACOIL represents an excellent solution for improving the efficiency of Resonant Converters up to 24V, significantly reducing power losses.
This module is designed to integrate perfectly with LLC transformers, making it ideal for high current applications, including those exceeding 100 Adc.
Synchronous Rectification for Switching Converters: Features and Benefits
In switching power supply technology, such as LLC resonant converters, synchronous rectification represents a significant step forward in terms of efficiency and performance.
Unlike traditional diode rectification, synchronous rectification employs actively controlled MOSFETs to convert alternating current (AC) to direct current (DC). These MOSFETs switch the current more quickly and reduce losses, improving the overall efficiency of the system by several percentage points, resulting in energy savings.
Energy Efficiency and Thermal Management
MOSFETs offer lower voltage drops compared to diodes, reducing power losses and heat generation. This improvement in energy efficiency not only increases overall system efficiency but also facilitates thermal management, enhancing reliability and lifespan even with smaller heat sinks.
Compact Design
The superior efficiency and reduced heat generation of MOSFETs enable the creation of smaller and lighter converters. High-efficiency components like MOSFETs facilitate the construction of more compact devices, promoting integration into limited spaces and reducing heat dissipation-related costs.
Enhanced Performance
MOSFETs are capable of handling higher currents and switching more rapidly compared to traditional diodes. This capability can help to achieve faster dynamic response of the converter to load and voltage variations, contributing to a more stable and precise output voltage.
In summary, synchronous rectification is a modern and efficient solution for all switching power supplies, offering an unbeatable combination of efficiency, performance, and reliability. While synchronous rectification components may have a higher upfront cost (partially offset by reduced heat sink requirements), the long-term benefits in terms of energy efficiency, reliability, and system lifespan make them a valuable investment.
An Example of Application
ITACOIL Demo Board SBD-TnK03-A0
We have developed a 24V – 2kW LLC Demo Board that integrates the entire resonant tank with Synchronous Rectification, designed to be connected directly to the half-bridge.
Leveraging Synchronous Rectification, this remarkably compact Demo Board (88 x 94 x 80 mm) achieves a peak efficiency of 98%, delivering exceptional efficiencies across a wide power range.