This Design Idea shows how to use a 63¢ (Q=1) microprocessor reset voltage detector IC in a relay coil drive circuit to greatly reduce the coil’s hold-in current. When asked to estimate the coil ...

A nondestructive testing technology called eddy current array (ECA) is capable of driving numerous eddy current coils that are positioned next to one another in the same probe assembly. In the probe, ...

Swiss sensor maker LEM has developed a novel non-contact current measuring technique based on a differential adaptation of the Rogowski principle. Rogowski coils Invented in 1912, Rogowski coils are ...

Wireless power transfer design can be challenging when dealing with electromagnetic-field leakage and ultimately ...

A research team has successfully developed a next-generation coil interface capable of efficiently and safely stimulating ...

This is called electromagnetic induction close electromagnetic inductionThe production of a potential difference (voltage) when a conductor, such as a wire, is moved through a magnetic field or ...

MAY I call attention to the most remarkable electrolytic current interrupter due to Dr. A. Wehnelt, of Charlottenburg, which appears to me to be by far the most important improvement that has been ...

Maybe you already know all about Rogowski coils. Maybe they are the dear friend of your youth, and you confidently look forward to their companionship in your old age. Not me – I had never heard of ...