Electronic Design

Simple Transistor Switch Detects Thermocouple Fault Conditions

Thermocouples and their leads often have to detect open-circuit or short-circuit faults. However, it is very difficult to distinguish a valid millivolt temperature signal from an open/short-circuited ...
Electronic Design

Simple Electronic Lock Uses Single-Transistor Circuit

A very simple but highly efficient combination lock circuit is shown in the figure. Any type of on/off switches can be used, varying from commercially available inexpensive types to more sophisticated ...
Ars Technica

Electronics people: simple drive spin-up transistor switch, with ~0.5s timer

OK, so I have an old project laptop with an IDE/PATA/slim-ATAPI optical drive bay, into which I have inserted a SATA drive caddy with a bridge board. The thing is, the caddy doesn't transfer the drive ...
PBS

Lesson 4

In this lesson, students build two circuits and explore how transistors function. When Bell Labs introduced the transistor in June of 1948, a spokesman proudly announced "This cylindrical object . . .
Circuit Digest

Simple Self-Timing Electric Motor Built from Scratch

Experience low power, high security, and reliable performance with PolarFire® Core & SoC FPGAs. A maker recently demonstrated how to build a fully functional self timing electric motor using only ...
Scientific American

Optical Circuits: Single Photon Flips Transistor Switch

Transistors, the tiny switches that flip on and off inside computer chips, have long been the domain of electricity. But scientists are beginning to develop chip components that run on light. Last ...