What is a Non-contact AC voltage detector? It is an AC voltage detector, that can be used to test live wires without any connection, hence the name. Therefore, it is safer than the neon screwdriver ...

When working around mains voltages, it can be useful to know whether a given circuit is live or not. While this can be done by direct connection with a multimeter, non-contact methods are available ...

This is a CMOS IC (CD4033) based circuit which can be used to detect presence of AC mains voltage without any electrical contact with the conductor carrying AC current/voltage. Thus it can be used to ...

Designed to illuminate the work area when tracing ac circuits in dark areas or behind equipment, the SenseLite is a battery-powered flashlight with a noncontact ac voltage detection circuit and a red ...

Abstract: The authors describe the design, construction, and performance of a circuit that detects transient disturbances on low-voltage AC supply mains. Such disturbances include reactive loads, ...

Motion sensor circuits are there on the Internet for quite a while now. These circuits are mainly used to drive AC load (like lights, fans) in home automation or IoT projects. It is also very common ...

Working with electricity can be a daunting and life-threatening task if you are a beginner in the electronic/electrical field, and things can go very wrong when electricity is not properly handled, ...

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 ...

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

Abstract: This paper describes a switching-voltage detector and compensation circuits for an ultra-low-voltage CMOS inverter. The switching voltage of an inverter is an important design parameters for ...

[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 ...