Multiphase boost converter eases 12V battery 'cranking deep'
Design How-To 4/29/2011 4 comments
Auto start-stop systems offer improved fuel efficiency and emissions, but vehicle electronics need to be protected from cranking transients. A multiphase boost converter is ideal for this function and can also simplify supplying power audio components in the infotainment system as well as isolating regenerative braking energy storage.
Loudspeakers: Objective evaluations - Part 6: Other measurements
Design How-To 4/27/2011 3 comments
In the sixth and final excerpt from the book "Sound Reproduction: The Acoustics and Psychoacoustics of Loudspeakers and Rooms," Floyd Toole considers other factors affecting loudspeaker performance beyond frequency response, including phase response, impedance, wire, damping factor and sensitivity.
IHS: CMOS image sensor supply hit by quake
News & Analysis 4/13/2011 Post a comment
The supply of CMOS image sensors, becoming ubiquitous in cell phones and notebook computers, has been affected by the Japan earthquake of March 11. In turn this is affecting the manufacture and distribution of camera modules for cell phones, according to market research firm IHS-iSuppli.
E-field sensing startup raises $4 million
News & Analysis 4/4/2011 3 comments
Ident Technology AG, a developer of proximity sensing and gesture recognition ICs, has received 2.9 million euro (about $4.1 million) to fund the development of its GestIC three-dimensional (3-D) gesture control chip using a fabless semiconductor business model.