Using universal interfacing platforms has always helped us. From Wi-Fi or Bluetooth like communication protocols to data exchange and charging platforms like USB, we have reduced the dependencies on specific brands. Now you can charge a Samsung phone with a Nokia USB charger or charge an iphone with a local USB charger. But what counts here as a difference is the power requirement of the gadget and interestingly, even though USB is a universal platform, there can be some serious variations in the efficiencies and power wattage.
Ken Shirriff has done quite an amazing task in taking out some of the most sold USB chargers available and has tested for some of the most critical measures of wattage, efficiency and ability to filter inputs.
He has also used a spectrum analyzer and shown the results in form of images. To satisfy some extra curious people, teardowns are also shown in this post.
When buying a gadget, most of the people are more concerned about its configuration while no one bothers that much with power requirements. And when the original one breaks, more concern is to save money and we get counterfeited/ lookalikes. Doing this will definitely ruin your precious gadget: hardware or software or both!!!
Ken’s post is one of those to be chewed and digested. From a well technofied geek to an aware consumer, this post breaks the myth of universal being able to work everywhere and throws some light on how to choose, select and use.
Filed Under: Reviews