An inventor, Wilson Greatbatch, accidentally created a regular beat while working on a heart sound recorder. He realized this ...

In all kinds of engineering, we build on abstractions in a kind of inverted pyramid. Lots of people can, for example, design a system using ready-made building blocks on printed circuit boards. Fewer ...

Although resistors are hardly among the most exciting components, they are arguably one of the most important ones, as anyone ...

So, what is a resistor? A resistor is a material that resists, limits or impedes the flow of electrical current. Resistive materials include carbon and various metallic alloys such as nichrome.

What kinds of applications utilize precision resistor trimming? Obvious applications include setting operational-amplifier gain and offset and voltage regulator output (Fig. 1a and 1b). But there are ...