Our Review/Thoughts

Still at Chapter 1: on Page 16, the author starts with his first “example” of a switching regulator, albeit a non-inductive one, but intended to demonstrate a clever “principle” to get readers enthused with his incisive observations

I was pleased to see the author had cleaned up the conceptual errors I had pointed out in the last edition

4W, same as input power and 100% efficiency, not the value of 99

485Vrms inside his equation Vrms^2/Rload, we get output power as 14

8% efficiency (which is correct, but was simply based on the 30mW subtracted from the input power of 14

The only way you get less than 100% efficiency, for a fixed input power, is by assuming the output droops below 6V average ideal value

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