A converter that tapers off a 4 mA input to zero, and adds the input and the tapered off 4mA signal to create a 2-wire 4-20 mA output loop.

The op amp-based current sensing circuit described here is not new, it has been around for some time, but with very little discussion of the circuit itself. Somewhere along the line it was informally ...

Like many hackers, [Matthias Wandel] has a penchant for measuring the world around him, and quantifying the goings-on in his home is a bit of a hobby. And so when it came time to sense the current ...

Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding ...

Download this article in PDF format. It’s now common to see circuit boards that carry hundreds of amps, especially in intensive data-processing applications, electric vehicles, and ac distribution.

Per 2014 NEC Article 100, short circuit current rating (SCCR) is defined as: “The prospective symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected ...

Industry Trends and Growing Demand for Primary Current Injection Testing Power systems worldwide are undergoing transformation. Aging infrastructure in many regions requires refurbishment and ...

Short circuit current rating (SCCR) requirements can be a serious liability for your company, your customer, and your supplier relations. Just knowing that the Code requires proper SCCR will not be ...

When a circuit is pushed past its limits, it rarely fails politely. It signals trouble through tripped breakers, hot outlets, ...