Business | Publications | News-Spot | Mar 10, 2017

RECOM Adds Magnetics Chapter to the New Edition of the DC/DC Book of Knowledge

The new edition of the RECOM DC/DC Book of Knowledge has been released, with an additional chapter on magnetics. More than 1,000 online copies have been downloaded by engineers worldwide, in the first few weeks. This shows how valuable this source of in-depth practical power design information is to the power supply community.

The author, Steve Roberts, says: “I am overwhelmed to hear that the new book of knowledge has been so well accepted in the industrial and educational communities. This makes all the hard work in writing the additional chapter worthwhile.”

About the New Chapter on Magnetics:

The new edition features an additional chapter on magnetics to cover the fundamentals of inductors and transformers. The chapter begins with terminology, core saturation, air-gapped inductors, core geometry, core losses, the skin effect and proximity effect. Worked examples of buck and boost DC/DC converter designs show how to correctly dimension the magnetic components and how to calculate the losses in the magnetic core and switching elements. The section continues with DC/DC transformer design, showing how to specify Royer push-pull, forward and flyback transformers - again with worked examples to demonstrate how to calculate the dimensions, turn ratios, losses and duty cycle limits for these topologies. For flyback transformers, the gap length and bobbin dimension calculations are also explained. The effects of leakage flux, leakage inductance and leakage capacitance are discussed and winding techniques to reduce these effects are explored. The chapter concludes with a short discussion on designing for low EMI and adequate internal core temperature safety margins.

While a single chapter cannot cover all aspects of inductor and transformer component design, it offers a useful introduction to the fundamentals of magnetics and the worked examples show how the theory can be put into practice.

Since the original publication in December 2014, more than 15,000 copies of the RECOM DC/DC Book of Knowledge have been distributed globally. Hard copies can be bought at Digi-Key and Chip1Stop. Free PDF versions are available in English, German, Chinese and Japanese at www.recom-power.com/book

RECOM Power GmbH:

RECOM Power GmbH supplies a full range of DC/DC and AC/DC converters in every power class up to 480 watts alongside switching regulators and LED drivers in a wide selection of designs. Innovations such as the company’s R-78 switching regulators have become industry standard.
The headquarters in Gmunden, Austria, includes a state-of-the-art logistics centre and laboratory wing. RECOM has a worldwide distribution network to deliver the company’s products to customers worldwide. The RECOM name has become synonymous with high quality, responsibility, innovation and excellent customer service.

FEATURED

A Cree® J Series® 2835 LED for Every Application on Your List

A Cree® J Series® 2835 LED for Every Application on Your List Cree's J Series 2835 LEDs combine high efficacy and lower power consumption. J Series 2835 LEDs are optimized for low density applications requiring high efficacy and smooth appearance, such as downlights, troffers, and panel lights. Thirteen models of J Series 2835 LEDs are available in 2200 K - ... Read more »

EDITORIAL

Porotech Launches Groundbreaking Micro-LED Product

Porotech Launches Groundbreaking Micro-LED Product University of Cambridge spin-out Porotech has today announced the launch of its first product based on its breakthrough gallium nitride (GaN) production technique that is set to transform the electronics industry. The company has launched the world's first commercial native red LED epiwafer for ... Read more »

EDITORIAL

Luminus Releases XFM-5050 UVC LEDs and Opens New Possibilities for Disinfection and Sterilization

Luminus Releases XFM-5050 UVC LEDs and Opens New Possibilities for Disinfection and Sterilization Luminus Devices today introduced its new XFM-5050 UVC LED series that sets new benchmarks for output, and lowers the $/mW another 20% compared to previous Luminus UVC LEDs. The series offers 2, 3, and 4 chip options with nominal power levels of 120, 180, and 240 mW of disinfection power. Read more »

EDITORIAL

Transform Your Space with Thorn's New VCT Technology

Transform Your Space with Thorn's New VCT Technology VCT technology (Variable Color Temperature) brings a new dynamic to your space. It is now possible to set dedicated color temperatures for specific areas of your space, ranging from 2700 K to 6500 K. The VCT enables you to manually and automatically adjust light levels and to set pre-defined ... Read more »