Understanding the hot and cold side of a switch mode power supply.

http://davestv.jestinemichellepow.click2sell.eu
Beginners in electronic troubleshooting often make the mistake of testing voltages from the wrong ground, so I thought it would be a good idea to cover this in greater detail. Jestine Yong published a book on switch mode power supplies which I found to be very helpful in gaining greater understanding on how they work. You can see a sample of his book at this link. http://davestv.jestinemichellepow.click2sell.eu

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