Why get up close and personal with a resistor when you can tweak it from a distance? Remote variable resistors make analog circuit control easier, neater, and a lot more fun. Well, we are about to ...

A linear control variable yields a uniform surge margin across the full operating range and simplifies both closed-loop and ...

A shift to angular and polar coordinates offers control engineers a more physically rigorous, PID-friendly approach ...

This application note describes a closed loop, computer- controlled, variable attenuator for the control of output power from a tunable laser. It is based on the combination of a 1/2 wave-plate and a ...