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Title: Dissppointed for the Fourth Edition
Review: If you have a third edition, you should keep using it. I should have kept the $ in my pockey. :(The newly added Class-D chapter is rather short and trivial. It is just an introduction to Class-D concept. This can be found easily elsewhere. No research, experimental and test results! Disappointed! Has the author listened to current high performance Class-D solutions (like ICEpower, Hypex)?The other new chapter, DC servo, does contains test/new results. You will learn some useful techniques.The author should correct some problems (printing, inconsistency between text and figure) that exist in third or earlier editions. However, he didn't. Why?Lastly, it is still highly recommeded for new readers.
