This compact mains voltage sensor is intended to monitor and signal to another circuit, for instance a microcontroller, about the presence and/or absence of the ac mains voltage. For this task, a ...

Comprised of two precision op amps (MAX4236), a voltage reference (MAX6143), a NAND gate, and associated components, this DC-voltage detector circuit asserts a digital output signal when the input is ...

A function often needed in industrial and scientific applications is detecting the presence - or absence - of dc voltages in such components as safety interlocks and automatic sequencers. Alfredo H.

[Dino] is back with another installment of his Hack a Week series, and in this episode he is taking on what he promises will be the last transistor-based project – at least for a little while. In the ...

Designed to detect voltage 2.5kV and higher, the 44SVD personal voltage detector can detect 44kV from as far as 30 ft. As the detector is moved closer to the voltage-carrying conductor, its AC sensor ...

Environmental systems that precipitate dust and carbon particles frequently use high-voltage dc power supplies. However, failure of high-voltage components caused by a change in their properties over ...