Tag Archives: pcb

Dr Brown’s capacitor ESR tester

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Rupert Hirst writes: I finally got round to making my capacitor ESR tester this week after finding a nice simple 5 transistor version by EEVBlog member Jay_Diddy_B. Unfortunately, for me, the design was only SMD so, I decided to replicate … Read more

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App note: Damage from a lightning bolt or a spark—It depends on how tall you are!

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Here’s an application note from Maxim describing how to protect printed circuit boards (PCBs) against ESD destruction: Large steel buildings, automobiles, mountains, even people survive real atmospheric lightning. Humans can also create their own miniature lightning bolts (sparks) and survive. When … Read more

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