NEW YORK—Integrated Device Technology Inc.’s deal to develop wireless charging ICs for Intel’s reference designs represents a coup for the mixed-signal company.
But whether the Intel and IDT (San Jose, Calif.) partnership can play a major role in proliferating wireless power technology is unclear. Their shared success depends on how quickly and widespread Intel’s wireless charging technology is adopted in Ultrabooks, all-in-one PCs, smartphones and standalone chargers.
And it isn’t the only wireless power standard out there. There are several others currently being developed that would enable the wireless transfer of power to charge electronic devices, including the Wireless Power Consortium’s “Qi” and the Alliance for Wireless Power (A4WP) led by Samsung and Qualcomm. And in one of its past relationships, things didn’t go the way IDT had planned.
“It’s still a show-me story,” said Robert Burleson, an analyst with investment bank Canaccord Genuity based in San Francisco. IDT had put its support behind DisplayPort in 2007 after Intel released its roadmap for the digital interface standard. OEMs didn’t roll-out DisplayPort-based products as quickly as IDT had anticipated, and its products were commoditized by the time OEMs started to go to market with them.
“The main test for IDT has to do with their allocation of R&D dollars,” Burleson said. “Analog is a fragmented marketplace, and there’s a lot of discretion in terms of how you spend your R&D and which products you go after. In the past there have been some failures, like DisplayPort, and so it’s a test of management in terms of successfully spending on R&D for products that yield revenue and good returns.”
IDT, however, works with all of the standards bodies, according to Arman Naghavi, IDT’s vice president and general manager of the Analog and Power Division. Its strategy is to build SoCs that can easily be tweaked to meet the needs of its OEM customers, regardless of the wireless charging standard their products will support.
“It appears IDT has been most aggressive in responding to the wireless charging opportunity,” said Steve Ohr, analog and power semiconductors analyst at Gartner Inc.
As an engineer, eventually you will have to insert an equation into your written work or presentation. This can be a struggle as equation editors are not always the friendliest. However, there is good news. The equation editor in Word has improved immensely (I am using version 2010 here). In this blog we look at how to insert an equation into a Word document. As a bonus, there is information on how to insert an equation into a web page with an html code generator website.
Wait a minute. Let’s see if I understand this. (Here I’m channeling you, the puzzled reader, after you’ve grabbed me in the coffee break of a Filter Wizard lecture morning). The frequency of the nth harmonic of a sinusoid is n times that of the fundamental. The nth harmonic distortion is defined as the ratio of the amplitude of the nth harmonic to the amplitude of the fundamental. So the 1st harmonic distortion is… the ratio of the amplitude of the fundamental to the amplitude of the fundamental and that’s… unity. I. Do. Not. Understand.
Single-ended signals are very common, but increasingly signal paths are being converted to differential signals as part of the signal chain. The benefits of differential signaling are particularly appealing with low supply voltage systems and for driving analog-to-digital converters (ADCs).
If you spend any time at all looking at alternative energy sources such as wind power and solar energy, you'll quickly discover one inconvenient truth: alternative energy production is both highly unpredictable and uncorrelated to energy demand.