Introduction to the fundamental technologies of power density

To better understand the fundamental technologies of high-power-density designs, in this article I’ll examine the four most important aspects of high-power-density solutions:

  • Reduced loss generation.
  • Optimal topology and control selection.
  • Effective heat removal.
  • Reducing system volume through mechanical and electrical component integration.

I’ll also demonstrate how partnering with TI, and using advanced technological capabilities and products that support these four aspects, can help improve your efforts to achieve high-power-density figures.

But first, let’s define power density and highlight some important details when comparing solutions based on their power-density figures.

What is power density?

For power-management applications, the definition of power density seems straightforward: it is the rated (or nominal) output power of the converter divided by the volume that the converter occupies as shown in Figure 1.

But even this simple definition demands a lot of clarification if you want to compare power supplies, based on their power-densities.

The output

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Study suggests population density affects type of inventions — ScienceDaily

The disruptive inventions that make people go “Wow!” tend to come from research in the heart of cities and not in the suburbs, a new study suggests.

Researchers found that, within metro areas, the majority of patents come from innovations created in suburbs — often in the office parks of big tech companies like Microsoft and IBM.

But the unconventional, disruptive innovations — the ones that combine research from different technological fields — are more likely to be produced in cities, said Enrico Berkes, co-author of the study and postdoctoral researcher in economics at The Ohio State University.

These unconventional patents are ones that, for example, may blend research on acoustics with research on information storage — the basis for digital music players like the iPod. Or patents that cite previous work on “vacuum cleaning” and “computing” to produce the Roomba.

“Densely populated cities do not generate more patents than

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