If you are an electronics repair specialist or just an electronics hobbyist interested in learning more about SMPS repair you must get this e-book. "Troubleshooting & Repairing Switch Mode Power Supplies" is the latest edition to Jestine Yong's series of excellent electronics repair books and I have to say this one is my favorite so far, It explains all the major circuits of the SMPS, how to identify all the major components, troubleshooting and testing methods plus so much more! This is the essential reference to anyone interested in learning SMPS repair. If you are a professional in the field of electronic repair like myself, then this book will help you big time, because as you know a large percentage of electronics equipment failures are related to the power supply and a large majority of electronics devices today use an SMPS. Don't hesitate check out this great book today, I highly recommend it.