REC3-4805DRW/H2/C/SMD

DC DC Converters Application and Working Principles

DC-to-DC converters (DC-DC converters), usually referred to as power converters, are electrical circuits used to convert direct current (DC) from one voltage level to another. They are common components of computer power supplies, solar thermal systems and energy storage systems. DC-DC converters are also used in flexible power solutions for telecom racks and cabinets, distributed power architectures, and other alternative energy sources. Here we will introduce the application field and working principle of REC3-4805DRW/H2/C/SMD.

Application Field of REC3-4805 DRW/H2/C/SMD

The REC3-4805DRW/H2/C/SMD series is a dual-output isolated DC-DC converter from RECOM Power\'s RECO HF product family. It is specially designed for use in telecom and industrial applications where reliable power conversion is required. The REC3-4805DRW/H2/C/SMD series offers a wide input voltage range from 9 V to 48 V and adjustable output voltages from 3.3 V to 20 V. The REC3-4805DRW/H2/C/SMD delivers up to 3A peak current with up to 50W of total output power. The REC3-4805DRW/H2/C/SMD also features a full feature current limiter, short-circuit protection, and thermal shutdown to ensure reliability of the device. Thanks to the PCB pin compatible option, the versatile REC3-4805DRW/H2/C/SMD is suitable for both new designs and upgrade of existing solutions.

Working Principle of REC3-4805DRW/H2/C/SMD

The basic principle of operation of a DC-DC converter is to convert an input DC voltage into an output DC voltage different from the input voltage. The REC3-4805DRW/H2/C/SMD employs a buck topology with current mode control and ultra-low noise fixed frequency switching. The input voltage is stepped down by the transformer and smoothed by the output stage diode rectifier and filter capacitors. The input voltage is then applied to the power MOSFET switch, which turns on for a controlled amount of time and is used to control the output current. The output voltage can be set by adjusting the voltage feedback from the output of the Transformer. The efficiency of the REC3-4805DRW/H2/C/SMD is optimized by employing synchronous rectification and high power resistance. The wide operating input voltage range and excellent performance make the REC3-4805DRW/H2/C/SMD suitable for various telecom and industrial applications.