Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing ...

We may receive a commission on purchases made from links. If you've had to replace the battery in an Apple AirTag, you've seen a CR2032 battery up close. The performance of the 3-volt CR2032 lithium ...

A simple, low cost, and precision frequency meter uses only two pins of a pc parallel port (Figure 1). The TTL-level periodic input signal with frequency f IN connects to the ACK pin of LPT1. This ...

We earn commissions from purchases you make using links in our articles. Learn more. Anyone who works on their car should have a multimeter, but they come in handy around the house too. Whether you ...

Keeping track of extremely low current levels is often essential when developing or testing low-power devices, especially in the field of embedded systems and battery-operated electronics. For battery ...

This is a GAL IC programmer software that allows to program GAL IC chips from various manufcaturers. It is based on work of several other people: whitequark · it ...

For power measurements in wireless telephony and high-speed data communication systems, the Schottky diode is the predominant choice. Current and voltage are indeed important, but power gives us a ...

Modern digital multimeters (DMMs) are user-friendly, accurate, and safe — when used correctly! Reading voltage is simple, but measurements must be properly interpreted. With a clamp-on DMM, accurate ...

Part 1 provided an overview of intrinsically safe systems; this part looks at some of the electronics and implementations. Q: The high-level insight is useful, but what about the electronics that are ...