Channel: Technical

An in-depth look at some of the more technical aspects relating to wireless power.  The blogs here will provide a greater insight into how wireless power works in different applications as well as an understanding of key concepts behind the technology itself.

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Wireless Charging & Induction Cooking: Opposite ends of the efficiency spectrum

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September 18, 2014

Design Considerations in Modern Wireless Power Transfer Systems: Coil Geometry

Blog first published and contributed to Planet Analog  Recent innovations have enabled the creation of robust and reliable wireless power systems that can be tailored for use in a wide […]

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April 2, 2013

Wireless Charging & Induction Cooking: Opposite ends of the efficiency spectrum

It was interesting to see these comments from Qualcomm in this recent Computerworld article by  Lucas Mearian: Samsung uses Qi charging for Galaxy S4, but sees A4WP as the future. […]

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March 18, 2013

Emissions safety testing for the Proxi Smartphone Solution

The past year has seen an infiltration of wireless charging technologies in the consumer electronics space.  A number of mobile phone operators are rushing to build wireless capabilities for their […]

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January 29, 2013

Charging efficiency – a means to an end, or the end itself?

In my previous blog I talked about efficiency and using it to measure “how loose” a loosely coupled system actually is.  The next question is how much does an end-user […]

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September 3, 2012

Defining power ranges for charging ecosystems – what does a universal solution look like?

A wireless power standard is essential to achieving true ubiquity of wireless charging of electronic devices. This is something wired charging has struggled to achieve just ask anyone who has […]

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August 29, 2012

What does loose coupling mean??

Coupling is a term widely used in discussing wireless power systems – it refers to a coupling coefficient ‘k’ which defines how well a transmitter and receiver are magnetically “linked” […]

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August 15, 2012

Resonance and Wireless Trickery

Over the last few years Wireless Power has made rapid advances towards becoming a mainstream technology and is often the case, marketing departments  become the source of many new inventions.  […]

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August 9, 2012

Frequency range and wireless power systems – what works best?

In my post last week I started to examine issues around frequency selection for wireless power systems.  This week I want to take the discussion a bit further and talk […]

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August 1, 2012

Do EMC radiation standards comprehensively cover wireless charging solutions?

EMC radiation standards are used to qualify electronic devices against interference with other electronic devices. A piece of wire that has a current running through it will generate electric and […]

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July 31, 2012

Frequency selection in wireless charging – what’s efficient and safe?

When we talk about wireless power, one of the first design questions we consider is… “at what resonant frequency should the system transfer its power?”.  Selecting the system’s resonant frequency […]

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