An off-line power supply
One of my electronics interests is building radios, particularly those featured in older UK electronics magazines such as Practical Wireless, Everyday Electronics, Radio Constructor, and The Maplin Magazine. Most of those radios are designed…
(Dis)assembling the bill-of-materials list for measuring blood pressure on the wrist
More than a decade ago, I visited my local doctor’s office, suffering from either kidney stone or back-spasm pain (I don’t recall which; at the time, it could have been either, or both, for that matter). As usual, the assistant logged my…
DC series motor caution
There are various ways to construct a motor, and the properties of that motor will depend on the construction choice. The series motor configuration has some desirable properties, but it can become quite dangerous to use if proper safety precautions…
Hybrid system resolves edge AI’s on-chip memory conundrum
Edge AI—enabling autonomous vehicles, medical sensors, and industrial monitors to learn from real-world data as it arrives—can now adopt learning models on the fly while keeping energy consumption and hardware wear under tight control.
It’s…
Unusual 2N3904 transistor circuit
A Planet Analog article, “2N3904: Why use a 60-year-old transistor?” by Bill Schweber, inspired some interest in this old transistor and how it’s commonly used, and if any uncommon uses might exist. Here’s one we played around with.
Wow…
Chip inductors broaden automotive magnetics portfolio
The SRF3225TAP series of common-mode chip inductors from Bourns delivers reliable EMI suppression and noise filtering for automotive systems. Meeting AEC-Q200 reliability standards, these devices provide impedance values of 500 Ω and 1000…
Gate driver boosts reliability in high-power designs
Featuring 2.5-kV capacitive isolation, the Littelfuse IX3407B gate driver improves signal integrity and safety in motor drives, inverters, and industrial power supplies. The single-channel, galvanically isolated driver provides low propagation…
Redriver strengthens USB4v2 and DP 2.1a signals
Parade Technologies’ PS8780 four-lane bidirectional linear redriver restores high-speed signals for active cables, laptops, and PCs. It supports USB4v2 Gen 4, Thunderbolt 5, and DisplayPort 2.1 Alt Mode, and is pin-compatible with the PS8778…
2-in-1 SiC module raises power density
Rohm has introduced the DOT-247, a 2-in-1 SiC molded module that combines two TO-247 devices to deliver higher power density. The dual structure accommodates larger chips, while the optimized internal design lowers on-resistance. Package enhancements…
R&S expands VNA lineup to 54 GHz
With the addition of 32-GHz, 43.5-GHz, and 54-GHz models, the R&S ZNB3000 series of vector network analyzers (VNAs) now covers a wider range of applications. The midrange family combines precision and speed in a scalable platform, extending…
Purpose-built AI inference architecture: Reengineering compute design
Over the past several years, the lion’s share of artificial intelligence (AI) investment has poured into training infrastructure—massive clusters designed to crunch through oceans of data, where speed and energy efficiency take a back seat…
Power Tips #145: EIS applications for EV batteries
Rechargeable batteries are the primary components in EVs, mobile devices, and energy storage systems. The batteries’ working conditions, including state of health (SOH), state of charge (SOC), and temperature, are essential to reliably and…
