We’re all familiar with thermally activated fuses, where the conducting element self-heats due to current flow, melts at a defined current value, and breaks the flow path. They are simple in concept...

Modern high-speed RS-485 data links are pushing the envelope to the absolute breaking point with regards to data rate versus cable length. Applications include position encoders, traffic monitoring, seismic networks, and GPS transceivers...

My recent DI contribution used the LM337 regulator in a novel circuit arrangement to translate an input 0-20 mA current source into a 4-20 mA two-wire transmitter current loop (a standard two-terminal industrial current source)...

I have always been intrigued by the many ways scientists and engineers have devised to sense basic physical parameters such as temperature, pressure, voltage, current, and electric fields, to cite just a few...

A DC load is an essential testing tool for any electronic enthusiast, especially for testing and repairing power supplies. An adjustable DC load can limit the current at any desired level...

Any semiconductor has limits on how much voltage, how much current, and for how much time combinations of voltage and current can be supported in normal usage...

It is a great circuit when you want to extend the range of an optical remote control transmitter...

Recently, frequent and favorite contributor Nick Cornford gave us a cool and novel acoustic-interface design for a super sub-ohmmeter capable of audibly sniffing out defects in PWBs...

This article describes a circuit that facilitates the measurement of currents from amps to hundreds of amps with a high degree of precision. Introduction...

Frequent contributor R. Jayapal recently shared an interesting Design Idea for power supply control and sequencing in MCU-based applications that combine analog and digital circuitry...