The safety-monitoring relay will go into a fault state and not re-energize until someone corrects or fixes the fault at the contact of the affected MPCE. If a safety control circuit must carry a high ...

In a previous article, I discussed LEDs in general and their properties. In this write-up, I want to give some examples of driving LEDs and comparing a few of the most commonly used methods. There is ...

A single PSR-TRISAFE safety controller can monitor an entire safety circuit from emergency stops to safety doors in a machine or plant. The 67.5-mm controller monitors up to 20 safety input signals ...

Lighting a string of LEDs at a constant brightness requires driving it with a regulated current. A boost converter is commonly used to step up the voltage to a level high enough to bias the LEDs on ...

A miniaturized driver manages red, green, blue, and white LEDs for maximum impact with minimal system CPU burden.

The PNOZmulti 2 controller with PNOZ m C0 base unit enables high productivity on smaller machines and can be used to implement safety requirements up to the highest category PL e or SIL CL 3. The m C0 ...

[Petteri Aimonen] created an omnidirectional LED safety light to cling to his child’s winter hat in an effort to increase visibility during the dark winter months, but the design is also great example ...

Frank Hertel’s project: three individually dimmable LED lights. (Frank is the master of recycling; the wooden mounting pedestals are the panels from a decommissioned ATI console!) Thanks for your ...

How lithium-ion (Li-ion) batteries behave under short-circuit conditions can now be examined using a new approach to help improve reliability and safety. How lithium-ion (Li-ion) batteries behave ...