Alex Mihalka is a technical education engineer for International Rectifier. He has 23 years of product design experience for various power, voltage, and current levels. His power-supply designs for audio, laser, and computer applications have passed IEC safety, EMC, and medical device standards. He has a BSEE and an MSEE from the University of Illinois, Urbana, and holds three U.S. patents. Email address: amihalk1@irf.com
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October 11, 2007[Design View / Design Solution] Go Green With 100-W And Higher Audio Power Amplifiers
We know Class D audio amplification offers advantages in efficiency and size for battery-powered devices. What you may not know, however, is that these advantages can now extend to amplifiers up to 500 W thanks to solid-state driver ICs designed specifically for Class D. Systems based on these new ICs outperform Class AB when it comes to THD+N measurements and simplify the designer's job by accepting ground-based analog audio inputs. Other attractive features include overcurrent...
