[Trax] was asked by a friend to build a device that could detect the presence of a car in front of his garage gate for it to open automatically. After searching the web for such a project and trying ...
Some operational amplifiers (op amps) have an inductive open-loop output impedance, which can be more complex to stabilize than op amps with resistive output impedances. One of the most common ...
A new 32-page guide to audio-frequency induction loop systems is available from C-TEC. The guide provides straightforward explanations of the technology involved, together with hints, tips and advice ...
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