Electronics Design

Shot in the ARM

Now that’s two shots on the ARM processors. NVIDIA and SoftBank Group Announce Termination of NVIDIA’s Acquisition of Arm Limited. NVIDIA has announced it is dropping its plan to acquire Arm, walking away from a deal originally valued at $40 billion in stocks and shares — with the Cambridge-based company set to go public under

A Mess Of Audio Cables

Hackaday has spent several months in this series journeying through the world of audio. Now it’s time to descend into one of the simplest yet most controversial areas of audio reproduction. Every audio component, whether digital or analogue, must be connected into whatever system it is part of, and this is the job of audio

What engineers were watching in 2021

While the world’s chip shortage dominated the 2021 headlines, the semiconductor industry blazed new trails with the increased electrification of cars, focused AI applications, improving power/performance, better utilization of data deluges, dealing with design challenges in advanced nodes and much more focus on chip security. Semiconductor Engineering’s Tech Talks reflected these focus areas. Semiconductor Engineering’s

The shocking power supplies

Transformerless power supplies are showing up a lot, especially in inexpensive products where the cost of a transformer would add significantly to the BOM. But transformerless power supplies are a double-edged sword. You can get yourself easily electrocuted if you don’t understand them and take proper safety precautions. Poking around in a transformerless-powered device can

Differential oscilloscope probes

By far the most used oscilloscope probes are the passive 10:1 attenuation probe. Next step in probe categories are active probes. Active probes succeed in practically eliminating reactive loading of the circuit under investigation by means of a small solid-state amplifier in the probe body adjacent to the tip. There are two main classes of

Fire and Smoke Alarm Systems

Smoke and fire alarms can save lives. The occupant and the housing company are responsible for the acquisition and maintenance of smoke alarms in Finland. It is the duty of the occupant of the flat, i.e. the resident, to buy a smoke alarm and to keep it in good working order. Smoke alarms must meet

Ethernet measurements

Ethernet over twisted-pair technologies use twisted-pair cables for the physical layer of an Ethernet computer network. Most commonly standards use 8P8C modular connectors (often called RJ-45), and supported cable standards range from Category 3 to Category 8. These cables typically have four pairs of wires for each connection, slower standards (10M and 100M) used only

Dynamic random flip memory

Row hammer (also written as rowhammer) is a security exploit that takes advantage of an unintended and undesirable side effect in dynamic random-access memory (DRAM) in which memory cells interact electrically between themselves by leaking their charges, possibly changing the contents of nearby memory rows that were not addressed in the original memory access. The